This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
7 APPLICATION DATA .................................................................................... 188
7.1 Installation of indoor unit ........................................................................... 188
(a) Ceiling cassette-4 way type (FDT) ..................................................... 189
(b) Ceiling cassette-4 way compact type (FDTC).................................... 194
(c) Ceiling cassette-2 way type (FDTW) ................................................. 199(d) Ceiling cassette-1 way compact type (FDTQ) ................................... 202
(e) Ceiling cassette-1 way type (FDTS) .................................................. 210
(f) Duct connected-High static pressure type (FDU) .............................. 213
(g) Duct connected-Middle static pressure type (FDUM) ........................ 216
(h) Duct connected (thin)-Low static pressure type (FDUT) .................... 219
(i) Duct Connected-Compact and Flexible type (FDUH) ........................ 222
(j) Wall mounted type (FDK) .................................................................. 225
(k) Ceiling suspended type (FDE) ........................................................... 228
(l) Floor standing-2 way type (FDFW) .................................................... 231(m) Outdoor air processing unit type (FDU-F) ......................................... 234
7.2 Electric wiring work instruction .................................................................. 237
7.3 Installation manual for wired remote controller (option parts : RC-E4) .... 243
7.4 Installation of outdoor unit ....................................................................... 248
7.5 Method for connecting the accessory pipe .............................................. 264
KX6 outdoor series are available with special coating
applied for not only sheet metals but also small parts in
order to prevent salt corrosion caused by sea breeze in
area along coast line (Within approximately 500m fromcoast line).
Sea breeze
Sea
CautionEven if the outdoor unit is protected with the anti-salt damage treatment, it cannot be perfectly free from rusting.
The following points should be kept in mind during installation and maintenance of the outdoor units.
Installation(1) When installing the outdoor unit close to the coastal area, provide a windbreak to protect it from direct sea breeze and
salt water splash.
(2) Select a well-drained place to install.
(3) If any scratch or damages occurred on the outdoor unit during installation, repair it carefully.
Maintenance(1) Clean salt grains on the outdoor unit with fresh water periodically.
(2) Apply rust preventive at regular intervals for maintenance depending on the conditions at the installation place(consulting with the withstanding capacity).
(3) Confirm reset of screw tap after maintenance, if missing it may cause corrosion occurred from the hole of screw tap.
(4) During prolonged non operation periods, protect the unit with covering.
Production by order
Model No.
FDCS224KXE6MFDCS280KXE6M
FDCS335KXE6M
Nominal Cooling Capacity
22.4kW28.0kW
33.5kW
2.5 Corrosion protection treatment series
Additional treatment from the standard series
Fin
pipe
Side plate
Description
undercoat: Cation electrodeposition coating
topcoat: polyester powder coating or acrylic baked coating
undercoat: Cation electrodeposition coating
topcoat: polyester powder coating or acrylic baked coating
application of anticorrosion compound
application of anticorrosion compound
Precoated Aluminum Blue Fins in high anticorrosion specification
application of anticorrosion compound
application of anticorrosion compound
application of anticorrosion compound
application of anticorrosion compound
application of anticorrosion compound
Corrosion protection treatment complies with regulation of The Japan Refrigeration and Air Conditioning Industry Association
Allowable length of refrigerant piping, height difference between indoor and outdoor unit
(1) Branch pipe method (using branch piping)
(2) Header System (Header used)
Note (1) A branch piping system cannot be connected after a header system.(2) 90m or less (However, difference between the longest and shortest piping : 40m or less)(3) The indoor unit of 224 or 280 capacity cannot be connected to the header.
System FDC280KXE6M
FDCS280KXE6M
FDC335KXE6M
FDCS335KXE6M
Please see the next page.
1 to 19 unit 1 to 22 unit1 to 15 unit
Item
Indoor intake air temperature
(Upper, lower limits)
Outdoor air temperature
(Upper, lower limits)
Single direction piping length Actual length : 160m or less, Eguivalent length : 185m or less
Total piping length
Main pipe length
510m or less
130m or less
90m or less (However, difference between the longest and shortest piping : 40m or less)
6 min or more (3 minutes or more from start to stop or 3 minutes or more from stop to start)
3 min or more
Within 10% of rated voltage
50m or less
40m or less
18m or less
Allowable pipe length from the first branching
18m or lessElevation difference between the first branching point and the indoor unit
Number of connected units
Connectable capacity (1)
FDC224KXE6M
FDCS224KXE6M
112 ~ 336 140 ~ 420 167 ~ 502
Outdoor unit is higher
Outdoor unit is lower
Indoor units
that can be
used incombination
Difference in
height betweenindoor and outdoor
units
Difference in the elevation of indoor units in a system
Indoor unit atmosphere (behind ceiling)
temperature and humidity
Only models FDT, FDTC, FDTW, FDTS, FDTQ,
FDU, FDUM, FDUH
1 cycle time
Stop time
Voltage fluctuation
Phase unbalance
Compressor
stop/ start
frequency
Power sourcevoltage
Voltage drop during start
Dew point temperature 28 or less, relative humidity 80% or less
(FDE, FDK : Dew point temperature 23 or less, relative humidity 80% or less)
Within 3% of rated voltage
Within 15% of rated voltage
Note (1) If one or more indoor units of FDK, FDFL, FDFU and/or FDFW seris are connected to the system, the total connecting capacity of indoor units should not exceed 130%.
(2) If superlink I (previous superlink) is selected, all the range of usage and limitations, not only the limitations of connectable indoor capacityand connectable number of indoor unit but also of the piping length, operating temperature range and etc., become same as those of KX4
(See technical manual '07 - KX - KXR-T-114). In addition to above limitations, all of new functions for KX6 such as automatic addresssetting function for multiple refrigerant systems and etc. will be cancelled.
“CAUTION” Cooling operation under low outdoor air temperature conditions
KXE6 models can be operated in cooling mode at low outdoor air temperature condition within above temperature range. However
in case of severely low temperature conditions if the following precaution is not observed, it may not be operated in spite of operable
temperature range mentioned above and cooling capacity may not be established under certain conditions.
[Precaution]
In case of severely low temperature condition
1) Install the outdoor unit at the place where strong wind cannot blow directly into the outdoor unit.
2) If there is no installation place where can prevent strong wind from directly blowing into the outdoor unit, prepare a windbreak
fence or something like that locally in order to divert the strong wind from the outdoor unit.
[Reason]
Under the low outdoor air temperature conditions of -5 or lower, if strong wind directly blow into the outdoor unit, the outdoor heat
exchanger temperature will drop, even though the outdoor fan is stopped by outdoor fan control. This makes high and low pressuresto drop as well. This low pressure drop makes the indoor heat exchanger temperature to drop and will activate anti-frost control at
indoor heat exchanger at frequent intervals, that cooling operation may not be established for any given time.
Note (1) A branch piping system cannot be connected after a header system.(2) 90m or less (However, difference between the longest and shortest piping : 40m or less)
(3) The indoor unit of 224 or 280 capacity cannot be connected to the header.
(a) Calculating the indoor unit capacity compensation
Indoor unit capacity (cooling, heating) = Indoor unit total rated capacity
× Capacity compensation coef ficient according to temperature conditions
See item (3) (a) concerning the capacity compensation coef ficient according to temperature conditions.
(b) Calculating the outdoor unit capacity compensationOutdoor Unit Capacity (Cooling, Heating) = Outdoor unit rated capacity (rated capacity when 100% connected)
× Capacity compensation coef ficient according to temperature conditions
× Capacity compensation coef ficient according to piping length
× Capacity compensation coef ficient according to height difference
× Correction of heating capacity in relation to the frost on the outdoor unit
heat exchanger
× Capacity compensation coefficient according to indoor unit connection
capacity
See item (3) (a) concerning the capacity compensation coef ficient according to temperature conditions.
See item (3) (c) concerning the capacity compensation coef ficient according to piping length.
See item (3) (d) concerning the capacity compensation coef ficient according to height difference. This compensation
should be carried out only in cases where the outdoor unit is lower during cooling and higher during heating.See item (3) (e) correction of heating capacity in relation to the frost on the outdoor unit heat exchanger. This compen-
sation should be carried out only when calculating the heating capacity.
See item (3) (f) concerning the capacity compensation coef ficient according to indoor unit connected capacity. This
compensation should be carried out only in cases where the indoor unit total capacity is 100% or higher.
(c) Calculating system capacity
Compare the capacities determined in items (a) and (b) above and let the smaller value be the system capacity (cooling,
heating).
In cases where indoor unit total capacity (cooling, heating) > outdoor unit capacity (cooling, heating)
System capacity (cooling, heating) = Outdoor unit capacity (cooling, heating)
In cases where indoor unit total capacity (cooling, heating) < outdoor unit capacity (cooling, heating)
System capacity (cooling, heating) = Indoor unit capacity (cooling, heating)
(d) Calculating indoor unit capacity [item (c) 1 only]Indoor unit capacity (cooling, heating) = System capacity (cooling, heating)
× [(Indoor unit capacity) / (Indoor unit total capacity)]
Capacity calculation examples
Example 1
Cooling (when the indoor unit connected total capacity is less than 100%)
• Outdoor unit FDC224KXE6M .................................................... 1 Unit
• Indoor unit FDT56KXE6D ......................................................... 3 Units
• Piping length .............................................................................. 60 m (Equivalent length)
• Indoor, outdoor unit height difference ........................................ 15 m (Outdoor unit is lower)
• Temperature conditions .................... .......................................... Outdoor temperature: 33˚C DB
• Temperature conditions ............................................................... Indoor temperature: 19˚C WB
<Indoor unit total cooling capacity>: Item (2) (a) calculation.• Indoor unit rated cooling capacity: 5.6 kW
• Capacity compensation coef ficient according to temperature conditions:
1.02 (Calculated according to Indoor 19˚C WB / Outdoor 33˚C DB); (See page 181)
Indoor unit cooling capacity: 5.6 kW × 1.02.=. 5.7 kW
• Indoor unit total cooling capacity calculation;
indoor unit total cooling capacity: 5.7 kW × 3 units = 17.1 kW
<Outdoor unit maximum cooling capacity> : Item (2) (b) calculation• Outdoor unit rated cooling capacity: 22.4 kW
• Capacity compensation coef ficient according to temperature conditions:
1.02 (Calculated according to Indoor 19˚C WB / Outdoor 33˚C DB); (See page 181)
Outdoor unit cooling capacity: 22.4 kW × 1.02.=. 22.8 kW
• Capacity compensation coef ficient according to piping length: 0.92 (calculated according to 60 m length); (See page 183)
• Capacity compensation coef ficient according to height difference: 0.97 (calculated according to 15 m difference); (See page 184)
21.0 kW × 0.97.=. 20.4 kW
• Capacity compensation coef ficient according to indoor unit connected total capacity: 1.0 (56 × 3) / 224 < 100%)
No compensation
<System cooling capacity>: Item (2) (c) calculationCompare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity. The smaller value is the actual
system cooling capacity.• Indoor unit total cooling capacity: 17.1 kW
• Outdoor unit maximum cooling capacity: 20.4 kWE System cooling capacity: 17.1 kW
<Indoor unit capacity compensation> No compensation (5.7 kW)
Example 2
Cooling (when the indoor unit connected total capacity is 100% or higher)
• Outdoor unit FDC224KXE6M .................................................... 1 Unit
• Indoor unit FDT56KXE6D ......................................................... 5 Units
• Piping length .............................................................................. 60 m (Equivalent length)
• Indoor, outdoor unit height difference ........................................ 15 m (Outdoor unit is higher)
• Temperature conditions .................... .......................................... Outdoor temperature: 35˚C DB
• Temperature conditions ............................................................... Indoor temperature: 18˚C WB
<Indoor unit total cooling capacity>: Item (2) (a) calculation.• Indoor unit rated cooling capacity: 5.6 kW
• Capacity compensation coef ficient according to temperature conditions:
0.95 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 181)
Indoor unit cooling capacity: 5.6 kW × 0.95.=. 5.3 kW
• Indoor unit total cooling capacity calculation;
indoor unit total cooling capacity: 5.3 kW × 5 units.=. 26.5 kW
<Outdoor unit maximum cooling capacity> : Item (2) (b) calculation• Outdoor unit rated cooling capacity: 22.4 kW
• Capacity compensation coef ficient according to temperature conditions:
0.95 (Calculated according to Indoor 18˚C WB / Outdoor 35˚C DB); (See page 181)
Outdoor unit cooling capacity: 22.4 kW × 0.95.=. 21.3 kW
• Capacity compensation coef ficient according to piping length: 0.92 (calculated according to 60 m length); (See page 183)
21.3 kW × 0.92 .=. 19.6 kW
• Capacity compensation coef ficient according to height difference: 1.0 (the outdoor unit is higher during cooling)
No compensation
• Capacity compensation coef ficient according to indoor unit connected total capacity: 1.08 (56 × 5) / 224.=. 125%) (See page 184)
19.6 kW × 1.08.=. 21.2 kW
<System cooling capacity>: Item (2) (c) calculationCompare the indoor unit total cooling capacity and the outdoor unit maximum cooling capacity. The smaller value is the actual
system cooling capacity.
• Indoor unit total cooling capacity : 26.5 kW
• Outdoor unit maximum cooling capacity : 21.2 kWE System cooling capacity: 21.2 kW
• Capacity compensation coef ficient according to piping length: 0.982 (calculated according to 60 m length); (See page 183)
26.0 kW × 0.982.=. 25.5 kW
• Capacity compensation coef ficient according to height difference: 0.96 (calculated according to 20 m difference); (See page 184)
25.5 kW × 0.96.=. 24.5 kW
• Correction of heating capacity in relation to the frost on the outdoor unit heat exchanger:
1.0 (calculated according to 6˚C WB); (See page 184)
24.5 kW × 1.0.=. 24.5 kW.
• Capacity compensation coef ficient according to indoor unit connected total capacity: 1.0 (56 × 5) / 224.=. 125%) (See page 184)
24.5 kW × 1.0.=. 24.5 kW.
<System heating capacity>: Item (2) (c) calculationCompare the indoor unit total heating capacity and the outdoor unit maximum heating capacity. The smaller value is the actual
system heating capacity.
• Indoor unit total heating capacity : 33.0 kW
• Outdoor unit maximum heating capacity : 24.5 kWE System heating capacity: 24.5 kW
Outdoor air W.B. temperature 14˚CWBOutdoor air W.B. temperature -20˚CWB
Outdoor air W.B. temperature -2˚CWB
Outdoor air W.B. temperature -6˚CWB
Outdoor air W.B. temperature 6˚CWB
Outdoor air W.B. temperature 2˚CWB
Outdoor air W.B. temperature -10˚CWB
16 17 18 19 20 21 22 23 24
Indoor air D.B. temperature(˚CDB)
P o w e r c o n s u m p t i o n c o m p e n s a t i o n c o e
f f i c i e n t
0.70
0.75
0.80
0.85
0.90
0.95
1.00
1.05
1.10
1.15
1.20
1.25
4Heating
Note (1) The above-mentioned table shows a typical condition among conditions to occur via controlling an air-conditioning equipment.
(c) Correction of cooling and heating capacity in relation to one way length of refrigerant piping.(Note) This table is for reference only. If the refrigerant piping one way equivalent after the first branch is extended longer than 40 m, it could
drop further by about 10% in the worst case.
1) Cooling
Liquid line:φ9.52
Gas line:φ19.05Liquid line:φ12.7
Gas line:φ22.22
00.80
0.85
0.90
0.95
1.00
20 40 60 80 90 100 120 140 160 180
Models : FDC224KXE6M, FDCS224KXE6M
Models : FDC335KXE6M, FDCS335KXE6M
C a p a c i t y c o m p e n s a t i o n
c o e f f i c i e n t
00.90
0.92
0.96
0.94
0.98
1.00
20 40 60 80 100 120 140 160 180
All models
C a p a c i t y c o m p e n s a t i o n
c o e f f i c i e n t
Refrigerant piping one way equivalent length (m)
Liquid line:φ9.52
Gas line:φ22.22
Liquid line:φ12.7
Gas line:φ25.4
00.80
0.85
0.90
0.95
1.00
20 40 9060 80 100 120 140 160 180
Models : FDC280KXE6M, FDCS280KXE6M
C a p a c i t y c o m p e n s a t i o n
c o e f f i c i e n t
Refrigerant piping one way equivalent length (m)Refrigerant piping one way equivalent length (m)
(e) Correction of heating capacity in relation to the frost on the outdoor unit heat exchanger
(d) When the outdoor unit is located at a lower height than the indoor unit in cooling operation and when the outdoor unit is located at a higher height than the indoor unit in heating operation, the following values
should be subtracted from the values in the above table.
The correction factors will change drastically according to weather conditions. So necessary adjustment should be
made empirically according to the weather data of the particular area.
Note (1) Equivalen t piping length can be obtained by calculating as follows.
Equivalent piping length = Real gas piping length + Number of bends in gas piping sEquivalent piping length of bends.
Equivalent length of each joint
F12.7
0.20
F9.52
0.15
F15.88
0.25
F19.05
0.30
F22.22
0.35
F25.4
0.40
F28.58
0.45
F31.8
0.55
Unit : m/one part
Height difference between the indoor unit and
outdoor unit in the vertical height difference
Adjustment coefficient
15 m
0.97
10 m
0.98
5 m
0.99
20 m
0.96
25 m
0.95
30 m
0.94
Height difference between the indoor unit and
outdoor unit in the vertical height difference
Adjustment coefficient
45 m
0.91
40 m
0.92
35 m
0.93
50 m
0.90
(f) The capacity compensation coefficient and power consumption compensation coefficient vary
according to the total capacity of concurrently operating indoor units, as shown below.
Follow installation manual careully, and install the panel properly.
Check the ollowing items.
Accessories
Accessories holding position
Note: Accessories are laid in the position removing the corner panel.
1.
2.
④ Removing a corner panel
Corner panel
⑤Orientation of the panel installation
Control box
Refrigerant pipes Drain pipe
Caution
WARNING
Bolt
Strap
4 pieces
4 pieces
For panel installation
For avoiding the corner panel rom alling
② Checking the indoor unit installation position
or details.)⑥ Attaching the panel
<Removal>
Stopper
Pull the corner panel towardthe direction indicatedby
the arrow and remove it. (Same way or all our
corner panels)
Take note that there is an orientation to install the panel.
Attach the panel wit h the orientati on shown on the ri ght.
CAUTION
PIPE SIDEDRAIN
PANEL INSTALLATION MANUAL
Read this manual together with the indoor unit’s installation manual.
⑦ Electrical wiring
Unit’s hook
Panel’s fixing hanger
Hook
hanger
Screws of
Panel switch
control box cover
Refrigerant pipes Drain pipe
Connectorfor louver motor (white) Clamps of unit main body
To Panel switch
CNV (red)
⑥ Attaching the panel
1. Temporary attaching
Lit up the hanger (2 places) on the panel or temporary support.
Hang the panel on the hook on the indoor unit.
2. Fix the panel on the indoor unit
Fasten the panel on the indoor unit with the our bolts supplied with the panel.
Caution
Improperly tightened hanging bolts can causethe
problemslistedbelow,so make sure that youhave
tightened them s ecurely.
Air leakage
Air leakage along
the ceiling
Fouling
Dew condensation or dripping Make sure no gap is left here.
Caution
PipeSide Drain
PIPE SIDE DRAIN
Fasten the wiring to the terminal securely and hold the cable securely so as not to apply
unexpected stress on the terminal.Loose connection or hold will cause abnormal heat generation or fire.
Make sure the power supply is turned off when electric wiring work.
Otherwise, electric shock, malfunction and improper running may occur.
Read this manual together with the air conditioner installation manual careully.
Check i the opening size or the indoor unit is correct with the level gauge supplied in the indoor unit.
Check i the gap between the ceiling plane and the indoor unit is correct by ins erting the level gauge into the air
outlet port o the indoor unit. (See below drawing)
Adjust the installation elevation i necessary.
I there is a height dierence beyond the design limitbetween the installation level o the indoor unit and theceiling plane, the panel may be subject to excessivestress during installation, it may cause distortion anddamage.
Align the “PIPE SIDE” mark (on t he panel) with the
rerigerant pipes on the indoor unit.
Align the “DRAIN” mark (on the panel) wit h the drain
pipe on the indoor unit.
In case the orientation o the panel isnot correct, it will lead to air leakageand also it is not possible to connectthe louver motor wiring.
I thereis a gap remainingbetween theceilingand the decorat ive panel even ater thehanging bolts are tightened,adjust theinstallation level o the indoor unit again.
It is possible to adjust the installation height o the indoor unit with the panel attached as longas there is no infuence on the drain pipe inclination and/or the indoor unit levelness.
To adjust finely, please turn a nut fastening the indoor unit
using a spanner or similar tool from the opening on the corner.
Make sure there is no stress given on the panel when adjusting the height o the indoorunit to avoid unexpected distortion. It may cause the distortion o panel or ailing toclose the air return grille.
•
•
•
•
• •
•
•
•
•
•
•
•
•
•
•
•
•
•
The installation level o the indoor unit can be adjusted nely
rom the opening provided on the corner, even ater panel is attached.
(Reer to
Hold the stoppers on the air return grille (2 places) toward
OPEN direction, open the air return grille.
Remove the hooks o the air return grille rom the decorative
panel while it is in the open position.
1. Ater removing three screws o control box, detach the cover o control box (the hatched part).
2. Connect the connector or louver motor (white 20P).
• Hold the wiring by using the clamps o the indoor unit.
• Hold the connector inside the control box.
3. Connect the connector or panel switch.
• Hold the wiring by using the clamps o the indoor unit.
• Connect CNV (red) inside the control box.
CAUTION
I the air return grill is opened, thepanel switch is turned o so that theair-conditioner cannot be operated anymore.To start the air conditioner, close theair return grill.
I it is necessary to x the louver position manually, ollow the procedure mentioned below.
1. Shut o the main power switch.
2.
3.
⑧ Attaching a corner panel
Louver motorLouver
Louver motorConnector
<Range o louver setting>
Caution
⑩ Attaching the air return grille
To attach the air return grille, ollow the procedure described in in the reverse order.
1.
2.
③ Removing the air return grille
<Installation>
Closing direction
Position for hanging hinges
Caution
•
•
•
Attaching the air return grille rom the hinge side.
Be careul in air return grille attaching, unstable attaching may cause grille alling.
Repair or replace the distorted, broken stopper at once, or the grille alling may occur.
1 Stop the air conditioner and press SET
buttonand LOUVER buttonsimultaneously
for three seconds or more.
“ ”
“ ”
“ ”
“ ”
2 Press S or T button.(selection of indoor unit)
[EXAMPLE]
“ ”⇔“ ”⇔“ ”⇔
“ ”
3 Press SET button . ( determinati on of
indoor unit)
[EXAMPLE]
“ ”
“ ”
“ ”
4 Press S or T button. (selection of louver No.)
[EXAMPLE]
“ ”⇔ “ ”⇔ “ ”⇔
“ ”
5 Press SET button. (Determin ati on of
louver No.)
[EXAMPLE] If No.1 louver is selected,
“ ” current upper limit position
6 Press S or T
S T
button. (selection of upper limit
position)
“ ” (the most horizotal)
⇔ “ ”
⇔ “ ”
⇔ “ ”
⇔ “ ”
⇔ “ ” (the most downwards)
⇔ “ ” (return to the deault setting)
No. 4
No. 2
No. 1 No. 3 b
l o r t n o C
o x
Louver No.
It is possible to change the movable range o the louver on the air outlet rom the wired remote controller. Once the top and bottom positionis set, the louver will swing within the range between the top and the bottom when swing operation is chosen. It is also possible to applydierent setting to each louver.
NOTICE
•
(downwards)
(horizontal)
the position of the louver7 Press SET bu tton (Fixing of the upper
limit position)
[EXAMPLE]
8 P re ss o r butt on ( Se le ct io no f l ow er l im it
position)
9 P res s SET b ut to n (F ixi ng o f t he l o we r lim it
position)
[Example]
(displayed or two seconds)
10Press button.
ATTENTION
Lowerposition
Movablerange
Upperposition
When plural remote controllers are connected, louver setting operation cannot be set by slave remote controller.
Caution
1. To avoid unexpected alling o the corner panel, put the strap onto the corner panel’s pin with turning the strap up.
2. Then hang the strap o a corner panel onto the decorative panel’s pin.3. First insert the part “a” o a corner panel into the part “A” o the decorative panel, and then engage our hooks.
Pin
Pin
For FDT type, in case the louver No to be set is uncertain, set any louver
temporarily. The louver will swing once when the setting is completed and it
is possible to conrm the louver No and the position.
Ater that, choose the correct louver No and set the top and bottom
position.
The louver No. to be set is conrmed and the display shows the upper limit o the movable range.
“position --” is to return to the actory setting. I you need tochange the setting to the deault setting, use “position --”.
(displayed or two seconds)
(shows current setting)
⑨ How to set the airflow direction
• Ater the setting is completed, the louver which was set movesrom the original position to the lower limit position, and goesback to the original position again. (This operation is notperormed i the indoor unit and/or indoor unit an is in operation.)
Upperlimitposition andlower limit positionare xed,andthe setpositions are displayed or two seconds, then setting is completed.
I the upper limit position number and the lower limit position number are set to the same position, the louver is fxed at thatposition auto swing does not untion.
I youpress RESETbuttonduring settings,thedisplay willreturn toprevious display. Iyoupressbutton during settings, the mode will be ended and return to original display, and the settings that have not beencompleted will become invalid.
Unplug the connector o the louver motor which you want to x the position. Make sure to ins ulate unplugged
connectors electrically with a vinyl t ape.
Adjust the louver position slowly by hand so as to be within the applicable range mentioned below table.
Any automatic control or operation rom the remote controller will be disabled on the louver whoseposition is xed in the above way.
Do not set a louver beyond the specied range.Failure to observe this instruction may result indripping, dew condensation, the ouling o the ceiling and the malunctioning o the unit.
Piping side Drain hose side
•
•
Select the lower limit position o louver.“position1” is themost horizontal, and“position 6 ”is the mostdownwards.“position --” is to return to the actory setting. I you need tochange the setting to the deault setting, use “position --”.
Theupper l imi t posi t ion is xed andthe sett ing posi t ion isdisplayed ortwo seconds.Then proceedto lower limit position
selection display.
Select the upper limit o louver movable range.“position1”is themost horizontal,and “position 6” is themostdownward.
(the most horizontal)
(the most horizontal)
(return to the deault setting)
Louver adjusting mode ends and returns to the original display.
Hang the hooks o the air return grille in the hole o the panel. (The hooks o the grille can be hanged in three sideo the panel as ollowing.)
Ater the grille is hanged, close the grille while the stoppers on the grille (2 places) are kept pressed to “OPEN”direction. When the grille comes to the original position, release the stoppers to hold the grille. Make sure to hear thesound o “CLICK” in both stoppers.
Control box
Panel switch
The grill may be
installed at one ofthese three sides.
The grill cannot beinstalled at this side.
Select the indoor unit o which the louver is set.
Select the louver No. to be set according to the right gure.
Selected indoor unit is xed.
(displayed or two seconds)
The ollowingis displayedithe numbero theindoorunitsconnected to the remote controller is one. Go to step 4.
The ollowingis displayedi the numbero the indoorunitsconnected to the remote controller are more than one
• This function is not able to be set with wireless remote controls or simple remote control (RCH-H3).
• For setting the swing range of other louvers, return to 1 and proceed same procedure respectively.
z Install correctly according to the installation manual.z Confirm the following points:cUnit type/Power supply specification c Pipes/Wires/Small parts c Accessory items
Accessory itmeFor unit hanging For refrigerant pipe For draom pipe
Flat washer(M10)
Level gauge(Insulation)
Pipe cover(big)Pipe cover
(small)S tr ap P ip e c ov er (b ig ) P ip e c ov er (s ma ll ) D ra in h os e H os e c la mp
8 4 1 1 4 1 1 1 1
For unit hangingFor adjustmentin hoisting in theunit's main body
For heatinsulationof gas pipe
For heatinsulationof liquid tube
For pipe coverfixing
For heatinsulationof drain socket
For heatinsulationof drain socket
For drain pipeconnecting
For drain hosemounting
② Selection of installation location for the indoor unit
1Select the suitable areas to install the unit under approval of the user.x Areas where the indoor unit can deliver hot and cold wind sufficiently. Suggest to the user to use
a circulator if the ceiling height is over 3m to avoid warm air being accumulated on the ceiling.x Areas where there is enough space to install and service.x Areas where it can be drained properly. Areas where drain pipe descending slope can be taken.x Areas where there is no obstruction of airflow on both air return grille and air supply port.x Areas where fire alarm will not be accidentally activated by the air conditioner.x Areas where the supply air does not short-circuit.
x Areas where it is not influenced by draft air.x Areas not exposed to direct sunlight.x Areas where dew point is lower than around 28°C and relative humidity is lower than 80%.
This indoor unit is tested under the condition of JIS (Japan Industrial Standard) high humiditycondition and confirmed there is no problem. However, there is some risk of condensation dropif the air conditioner is operated under the severer condition than mentioned above.If there is a possibility to use it under such a condition, attach additional insulation of 10 to20mm thick for entire surface of indoor unit, refrigeration pipe and drain pipe.
x Areas where TV and radio stays away more than 1m. (It could cause jamming and noise.)x Areas where any items which will be damaged by getting wet are not placed such as food, table
wares, server, or medical equipment under the unit.x Areas where there is no influence by the heat which cookware generates.x Areas where not exposed to oil mist, powder and/or steam directly such as above fryer.x Areas where lighting device such as fluorescent light or incandescent light doesn’t affect the
operation.(A beam from lighting device so metimes affects the infrared receiver for the wireless remotecontroller and the air conditioner might not work properly.)
2Check if the place where the air conditioner is installed can hold the weight of the unit. If it is notable to hold, reinforce the structure with boards and beams strong enough to hold it. If the strengthis not enough, it could cause injury due to unit falling.
3 If there are 2 units of wireless type, keep them away for more than 5m to avoid malfunction due tocross communication.
4When plural indoor units are installed nearby, keep them away for more than 4m.
Space for installation and service
z When it is not possible to keep enough space between indoor unit and wall or between indoor units,close the air supply port where it is not possible to keep space and confirm there is no short circuitof airflow.
z Install the indoor unit at a height of more than 2.5m above the floor.
tinuroodnItinuroodnI
Wall
Ceiling
surface
Decorative panel
1000mm or more
4000mm or more
1000mm or more2500mm or more
Obstacle
Floor
③ Preparation before installation
z If suspension bolt becomes longer, do reinforcement of earthquake resistant.c For grid ceiling
When suspension bolt length is over 500mm, or the gap between the ceiling and roof is over700mm, apply earthquake resistant brace to the bolt.
c In case the unit is hanged directly from the slab and is installed on the ceiling plane which hasenough strength.When suspension bolt length is over 1000mm, apply the earthquake resistant brace to the bolt.
z Prepare four (4) sets of suspension bolt, nut and spring washer (M10 or M8) on site.
Ceiling opening, Suspension bolts pitch, Pipe position
④ Installation of indoor unit
Work procedure
1. This units is designed for 2 x 2 grid ceiling.If necessary, please detach the T bar temporarily before you install it.If it is installed on a ceiling other than 2 x 2 grid ceiling, provide an inspection port on the control boxside.
2. Arrange the suspension bolt at the right position (530mm×530mm).3. Make sure to use four suspension bolts and fix them so as to be able to hold 500N load.4. Ensure that the lower end of the suspension bolt should be 45mm above the ceiling plane.
Temporarily put the four lower nuts 88mm above the ceiling plane and the upper nuts on distantplace from the lower nuts in order not to obstruct hanging the indoor unit or adjust the indoor unitposition, and then hang the indoor unit.
T bar Ceilingpanel
Control box
5. Adjust the indoor unit position after hanging it by inserting the level gauge attached on the packageinto the air supply port and checking if the gap between the ceiling plane and the indoor unit isappropriate. In order to adjust the indoor unit position, adjust the lower nuts while the upper nuts areput on distant place. Confirm there is no backlash between the hanger plate for suspension bolt andthe lower nut and washer.
88mm
Suspension bolt
Nut (upper)
FlatwasherSpring washer
Nut (lower)
Ceiling surface
45mm
Refrigerant piping
Drain piping
Level gauge
3 0 3
0
Level gaugeT-barCeiling panel(insulation)
Use level gauges asreference, adjust thebottom to the face ofthe indoor unit.
DiffuserLevel gauge(insulation)
T-barCeiling panel
Use level gauges asreference, adjust thebottom to the face ofthe indoor unit.
When the ceiling panel comes below the Tbar, align the bottom of the level gauge tothe lower face of the ceiling panel.
Diffuser
Unit
Correct
Unit
Wrong
Touch the nut (lower) andwasher without any play
Play is left between the fixtureand the nut (lower) and washer.
A B C E
F
F
F
D
F
6-Ǿ4
DE
CBA
Symbol Content
Air outlet openingfor ductingF
Gas pipingLiquid pipingDrain pipingHole for wiringSuspension bolts
Decorative panel
Air supplyAir returngrille
Hanger plate forsuspension bolt
(Installed on site)
Drain hose piece(Accessory)
Controlbox
Holes fortapping screws
Hole
145325
□570
4 5 o r m o r e
1 3 2 1
9 2
3 5
8 8
2 1 0
2 4 8
185
190 223
3 2 6
3 5 0
5 3 0 ( S u s p e n s i o n
b o l t s
p i t c h )
530 (Suspension bolts pitch)
5 5 6
6 7
200 48
□413
□70021
3 5
60
140
100
1 0 0
8 8
1 4 0
(b) Ceiling cassette-4way compact type (FDTC) PJA012D786
6. Make sure to install the indoor unit horizontally. Confirm thelevelness of the indoor unit with a level gauge or transparenthose filled with water. Keep the height difference at both ends ofthe indoor unit within 3mm.
7. Tighten four upper nuts and fix the unit after height and levelnessadjustment.
Caution
z Do not adjust the height by adjusting upper nuts. It will cause unexpected stress on the indoor unitand it will lead to deformation of the unit, failure of attaching a panel, and generating noise from thefan.
z Make sure to install the indoor unit horizontally and set the gap between the unit underside andthe ceiling plane properly. Improper installation may cause air leakage, dew condensation, waterleakage and noise.
z Even after decorative panel attached, still the unit height can be adjusted finely. Refer to theinstallation manual for decorative panel for details.
z Make sure there is no gap between decoration panel and ceiling surface, and between decorationpanel and the indoor unit. The gap may cause air leakage, dew condensation and water leakage.
z In case decorative panel is not installed at the same time, or ceiling material is installed after theunit installed, put the cardboard template for installation attached on the package (packing materialof cardboard box) on the bottom of the unit in order to avoid dust coming into the indoor unit.
⑤ Refrigerant pipe
Caution
z Use the new refrigerant pipe.When re-using the existing pipe system for R22 or R407C, pay attention to the following items.x Change the flare nuts with the attached ones (JIS category 2), and reprocess the flare parts.x Do not use thin-walled pipes.
z Use phosphorus deoxidized copper alloy seamless pipe (C1220T specified in JIS H3300) forrefrigeration pipe installation. In addition, make sure there is no damage both inside and outside of the pipe, and no harmfulsubstances such as sulfur, oxide, dust or a contaminant stuck on the pipes.
z Do not use any refrigerant other than R410A.Using other refrigerant except R410A (R22 etc.) may degrade inside refrigeration oil. And air gettinginto refrigeration circuit may cause over-pressure and resultant it may result in bursting, etc.
z Store the copper pipes indoors and seal the both end of them until they are brazed in order to avoidany dust, dirt or water getting into pipe. Otherwise it will cause deg radation of refrigeration oil andcompressor breakdown, etc.
z Use special tools for R410 refrigerant.
Work procedure
1. Remove the flare nut and blind flanges on the pipe of the indoor unit.Make sure to loosen the flare nut with holding the nut on pipe side with a spanner and givingtorque to the nut with another spanner in order to avoid unexpected stress to the copper pipe,and then remove them.(Gas may come out at this time, but it is not abnormal.)
z Pay attention whether the flare nut pops out. (as the indoor unit is sometimes pressured.)2. Make a flare on liquid pipe and gas pipe, and connect the refrigeration pipes on the indoor unit.
Bend the pipe with as big radius as possible and do not bend the pipe repeatedly. In addition, do
not twist and crush the pipes.Do a flare connection as follows:
z Make sure to loosen the flare nut with holding the nut on pipe side with a spanner and givingtorque to the nut with another spanner in order to avoid unexpected stress to the copper pipe,and then remove them.
z When fastening the flare nut, align the refrigeration pipe with the center of flare nut, screw thenut for 3-4 times by hand and then tighten it by spanner with the specified torque mentionedin the table below. Make sure to hold the pipe on the indoor unit securely by a spanner whentightening the nut in order to avoid unexpected stress on the copper pipe.
3. Cover the flare connection part of the indoor unit with attached insulation material after a gasleakage inspection, and tighten both ends with attached straps.z Make sure to insulate both gas pipes and liquid pipes completely.
Incomplete insulation may cause dew condensation or water dropping.4. Refrigerant is charged in the outdoor unit.
As for the additional refrigerant charge for the indoor unit and piping, refer to the installation manualattached to the outdoor unit.
Pipe d iamete r Tighten ing torque N·mφ 6.35 14 to 18φ 9.52 34 to 42φ 12.7 49 to 61φ 15.88 68 to 82
φ 19.05 100 to 120
⑥ Drain pipe (continued)
Work procedure
1. Make sure to insert the drain hose (the end mode of soft PVC) to the end of the step part of drainsocket.Attach the hose clamp to the drain hose around 10mm from the end, and fasten the screw within5mm left to the nut.z Do not apply adhesives on this end.
Drain socketThe step part Drain hose
No adhesive allowed
Drain socket
Metal plate
10mm
Hose clamp
Fasten the screw within 5 mm left to the nut.
Drain hose
2. Prepare a joint for connecting VP-20 pipe, adhere and connect the joint to the drain hose (the endmade of rigid PVC), and adhere and connect VP-20 pipe (prepare on site).
As for drain pipe, apply VP-20 made of rigid PVC which is on the market.z Make sure that the adhesive will not get into the supplied drain hose.
It may cause the flexible part broken after the adhesive is dried up and gets rigid.z Do not bend or make an excess offset on the drain hose as shown in the picture.
Bend or excess offset will cause drain leakage.
Over20mm
3. Make sure to make descending slope of greater than 1/100 and do not make up-down bend and/ortrap in the midway.z Pay attention not to give stress on the pipe on the indoor unit side, and support and fix the pipe
as close place to the unit as possible when connecting the drain pipe.z Do not set up air vent.
Supporting metalNo bump
No trap
Not touching the water
Trapped air willgenerate noises.
Air vent
Insulation material
1.5m ~ 2m
Descending slope greater than 1/100
z When sharing a drain pipe for more than oneunit, lay the main pipe 100mm below the drainoutlet of the unit. In addition, select VP-30 orbigger size for main drain pipe.
4. Insulate the drain pipe.z Be sure to insulate the drain socket and rigid PVC pipe installed indoors otherwise it may cause
dew condensation and water leakage.After drainage test implementation, cover the drain socket part with pipe cover (small size),then use the pipe cover (big size) to cover the pipe cover (small size), clamps and part of thedrain hose, and fix and wrap it with tapes to wrap and make joint part gapless.
Drain up
z The position for drain pipe outlet can be raised up to 600mm above the ceiling. Use elbows forinstallation to avoid obstacles inside ceiling. If the horizontal drain pipe is too long before verticalpipe, the backflow of water will increase when the unit is stopped, and it may cause overflow ofwater from the drain pan on the indoor unit. In order to avoid overflow, keep the horizontal pipelength and offset of the pipe within the limit shown in the figure below.
Drain hose
6 0 0 m m o
r l e s s
Joint forVP-20(Prepare on site)
295 to 325mm 100 or less
⑥ Drain pipe
Caution
z Install the drain pipe according to the installation manual in order to drain properly. Imperfection in draining may cause flood indoors and wetting the household goods etc.z Do not put the drain pipe directly into the ditch where toxic gas such as sulfur, the other harmful and inflammable gas is generated. Toxic gas would flow into the room and it would cause serious
damage to user’s health and safety (some poisoning or deficiency of oxygen). In addition, it maycause corrosion of heat exchanger and bad smell.
z Connect the pipe securely to avoid water leakage from the joint.z Insulate the pipe properly to avoid condensation drop.z Check if the water can flow out properly from both the drain outlet on the indoor unit and the end of
the drain pipe after installation.z Make sure to make descending slope of greater than 1/100 and do not make up-down bend and/or
trap in the midway. In addition, do not put air vent on the drain pipe. Check if water is drainedout properly from the pipe during commissioning. Also, keep sufficient space for inspection andmaintenance.
Indoor unit
hose
Strap (Accessory) Pipe cover (Accessory)
The thickness of insulation should be 20mm or more.
z After installation of drain pipe, make sure that drain system work in good condition and no waterleakage from joint and drain pan. Check if the motor sound of drain pump is normal or not.
z Do drain test even if installation of heating season.z For new building cases, make sure to complete the test before
hanging the ceiling.1. Pour water of about 1000cc into the drain pan in the indoor unit by
pump so as not to get the electrical component wet.2. Make sure that water is drained out properly and there is no water
leakage from any joints of the drain pipe at the test.Confirm that the water is properly drained out while the drain motoris operating. At the drain socket (transparent), it is possible tocheck if the water is drained out properly.
3. Unplug the drain plug on the indoor unit to remove remaining wateron the drain pan after the test, and re-plug it. And insulate the drainpipe properly finally.
Drain pump operation
c In case electrical wiring work finishedDrain pump can be operated by remote controller (wired).For the operation method, refer to Operation for drain pump in the installation manual for wiringwork.
c In case electrical wiring work not finished Drain pump will run continuously when the dip switch“SW7-1” on the indoor unit PCB is turned ON,the Connector CNB is disconnected, and then the power supply (220-240VAC on the terminal block[ ① and ②] or [ Ⓛ and Ⓝ ] ) is turned ON. Make sure to turn OFF “SW7-1” and reconnect the Connector CNB after the test.
z Attach the panel on the indoor unit after electrical wiring work.z Refer to attached manual for panel installation for details.
⑦ Wiring-out position and wiring connection
z Electrical installation work must be performed according to the installation manual by an electricalinstallation service provider qualified by a power provider of the country, and be executed accordingto the technical standards and other regulations applicable to electrical installation in the country.Be sure to use an exclusive circuit.
z Use specified cord, fasten the wiring to the terminal securely, and hold the cord securely in ordernot to apply unexpected stress on the terminal.
z Do not put both power source line and signal line on the same route. It may causemiscommunication and malfunction.
z Be sure to do D type earth work.z For the details of electrical wiring work, see attached instruction manual for electrical wiring work.
1. Remove a lid of the control box (1 screws).2. Hold each wiring inside the unit and fasten them to terminal block securely.3. Fix the wiring with clamp.4. Install a lid of the control box back to original place.
⑧ Panel installation
z After wiring work finished, install the panel on the indoor unit.z Refer to panel installation manual for details. (see next page)
Accessory items
1 Hook 1 piece For fixing temporarily
2 Chain 2 pieces
3 Bolt 4 pieces For installing the panel
4 Screw 1 piece For attaching a hook
5 Screw 2 pieces For attaching a chain
⑨ Check list after installation
z Check the following items after all installation work c ompleted.
Check if Expected trouble Check
The indoor and outdoor uni ts a re fixed secure ly? Fal ling , v ib ra tion , noise
Inspection for leakage is done? Insufficient capacity
Insulation work is properly done? Water leakage
Water is drained properly? Water leakage
Supply voltage is same as mentioned in the model name plate? PCB burnt out, not working at all
There is mis-wi ring or mis-connec tion of piping? PCB burn t out , not work ing a t a llEarth wiring is connected properly? Electric shock
Cable size comply with specified size? PCB burnt out, not working at all
Any obstac le blocks ai rflow on ai r inlet and out le t? Insuffic ient capaci ty
Please read this manual together with the indoor unit’s installation manual.
WARNING
Fasten the wiring to the terminal securely and hold the cable securely so as notto apply unexpected stress on the terminal.Loose connection or hold will cause abnormal heat generation or fire.
Make sure the power supply is turned off when electric wiring work.Otherwise, electric shock, malfunction and improper running may occur.
① Checking the indoor unit installation position
• Read this manual together with the air conditioner installation manual carefully.
• Check if the gap between the ceiling plane and the indoor unit is correct by inserting the
level gauge into the air outlet port of the indoor unit. (See below drawing)
• Adjust the installation elevation if necessary.
• Remove the level gauge before you attach the panel.
• Unscrew the screw from the corner area, pull the corner panel toward the direction
indicated by the arrow mark.
• First insert the part “a” of a corner panel into the part “A” of the cover panel, engage two
hooks and tighten the screw.
1. Take note that there is an orientation to install the panel.
• Attach the panel with the orientation shown on the below.
• Align the “PIPE SIDE” mark (on the panel) with t he refrigerant pipes on the indoor unit.
2. The intake grille can also be attached in a rotated position by 90 degrees.
1. Screw in two bolts out of the four supplied with
the panel by about slightly less than 5mm.
( markⒶⒷ ) [Figure 1]
2. Attach the hook supplied with the panel to the
main body with the hook fixing screw (1 screw).
[Figure 2]
3. Open the intake grille.
4. Please remove the screw of a corner panel and
remove a corner panel. (four places)
5. A panel is hooked on two bolts ( markⒶⒷ ).
[Figure 3]
· In case the orientation of the panel is not correct, it wil l lead to air leakage and also
it is not possible to connect t he louver motor wiring.
② Orientation of the panel and return air grille installation
③ Removing a corner panel
④ Attaching a corner panel
⑤ Panel installation
Accessories
Use level gauges
as reference, adjust
the bottom to the
face of the indoor
unit.
Use level gauges
as reference, adjust
the bottom to the
face of the indoor
unit.
When the ceiling panel comes below
the T bar, align the bottom of the level
gauge to the lower face of the ceiling
panel.
Diffuser
Ceiling panel Ceiling panel
Intake grille
Refrigerantpipes sideControl box
Drain pipe side
Screw
Screw
Hook
Cornerpanel
T-bar T-barLevel gauge
(insulation)
Level gauge
(insulation)
Diffuser
Louver motor
connector
• Install the panel on the unit after completing the electrical wiring.
6. Please rotate a hook, put in the slot on the panel, and carry out fixing the panel
temporarily. [Figure 4]
7. Tighten the two bolts used for fixing the panel temporarily and the other two.
8. Please open the lid of a control box.
9. Like drain pump wiring, please band together by the clamp and put in louver motor wiring
into a control box. [Figure 5]
10.Please connect a louver motor connector. [Figure 5]
11.Attach two chains to the intake grille with two screws. [Figure 6]
12. Replace the corner panels. Please also close a chain with a screw together
then. [Figure 7]
13. Close the intake grill.
Make sure there is no stressgivenon thepanel when adjustingthe heightof theindoor
unit to avoid unexpected distortion. It may cause the distortion of panel or fai ling to
close the air return grille.
• Any automatic control or operation from the remote controller wil l be disabled on the louver whoseposition is fixed in the above way.
• Do not set a louver beyond the specified range. Failure to observe this instruction may result indripping, dew condensation, the fouling of the ceiling and the malfunctioning of the unit.
Caution
If theupperlimit position numberand thelower limit position numberare set to the same position, thelouver is fixed at that position auto swing does not function.
Caution
When plural remote controllers are connected, louver setting operation cannot be set by slave remotecontroller.
ATTENTION
Louver motor
Connector
<Range of louver setting>
※It can be set between 24~40mm freely.
Vertical airflow direction
Dimension L (mm)
Horizontal 23°
40
Downwards 50°
24
Louver motor
Louver
It is possible to change the movable range of the louver on the air outlet from the wired remote controller. Once the
• This function is not able to be set with wireless remote controls or simple remote control (RCH-H3).
top and bottom position is set, the louver will swing within the range between the top and the bottom when swingoperation is chosen. It is also possible to apply different setting to each louver.
If it is necessary to fix the louver position manually, follow the procedure mentioned below.1. Shut off the main power switch.2. Unplug the connector of the louver motor which you want to fix the position.
Make sure to insulate unplugged connectors electrically with a vinyl tape.3. Adjust the louver position slowly by hand so as to be within the applicable range mentioned below table.
Stop the air conditioner and press SET button and
LOUVER button simultaneously for three seconds or more.
The following is displayed if the number of the indoor units connected to the
remote controller is one. Go to step 4.
Press ▲ or ▼ button. (selection of indoor unit)
Press SET button. (determination of indoor unit)
The following is displayed if the number of the indoor units connected to the
remote controller are more than one
Select the indoor unit of which the louver is set.
Selected indoor unit is fixed.
⑦ How to set the airflow direction
1
2
3
LL
Caution
Caution
Lowerposition
Movablerange
Upperposition
Louver No.
Pipingside
Drainhose side
Control box
(downwards)
(horizontal)
the position of the louver
[EXAMPLE]
Press ▲ or ▼ button. (selection of louver No.)Select the louver No. to be set according to the right figure.
4
Press button.Louver adjusting mode ends and returns to the original display.
10
[EXAMPLE]
Press ▲ or ▼ button. (selection of upper limit position)
Select the upper limit of louver movable range.
“position 1” is the most horizontal, and “position 6” is the most downward.
“position --” is to return to the factory setting. If you need to change the setting to
the default setting, use “position --”.
6
Press ▲ or ▼ button. (Selection of lower limit position)
Select the lower limit position of louver.
“position 1” is the most horizontal, and “position 6” is the most downwards.
“position --” is to return to the factory setting. If you need to change the setting to
the default setting, use “position --”.
8
[EXAMPLE]
(displayed for two seconds)
(displayed for two seconds)
(shows current setting)
(the most downwards)
(the most horizontal)
(return to the default setting)
(the most downwards)
(the most horizontal)
(return to the default setting)
(displayed for two seconds)
Press SET button. (Determination of louver No.)
The louver No. to be set is confirmed and the display shows the
upper limit of the movable range.
5
[EXAMPLE] If No.1 louver is selected,
← current upper limit position
Press SET button. (Fixing of the upper limit position)
The upper limit position is fixed and the setting position is displayed for two
seconds. Then proceed to lower limit position selection display.
7
[EXAMPLE]
Press SET button. (Fixing of the lower limit position)
Upper limit position and lower limit position are fixed, and the set positions aredisplayed for two seconds, then setting is completed.• After the setting is completed, the louver which was set moves from the
original position to the lower limit position, and goes back to the originalposition again. (This operation is not performed if the indoor unit and/or indoorunit fan is in operation.)
9
[EXAMPLE]
NOTICE
• In case the louver No to be set is uncertain,set any louver temporarily.The louver will swing once when the settingis completed and it is possible to confirmthe louver No and the position.
After that, choose the correct louver No andset the top and bottom position.
Slot
[Figure 4]
Air leakage
Air leakage alongthe ceiling
Fouling
Dew condensation or dripping Make sure no gap is left here.
• Improperly tightened hanging bolts cancause the problems listed below, so makesure that you have tightened themsecurely.
• If there is a gap remaining between theceiling and the decorative panel evenafter the hanging bolts are tightened,adjust the installation level of the indoor
unit again.
“ ”
“ ”
“ ”
“ ”
“ ”“ ”“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
“ ”
If you press RESET button during settings, the display will return to previous display.If youpress buttonduring settings,the mode will be endedand returnto original display,and thesettings that have n ot been completed will become invalid.
“ ” “ ” “ ”
“ ”
“ ”
• For setting the swing range of other louvers, return to 1 and proceed same procedure respectively.
*1 This function is not able to be set with wireless remote controls or simple remote control (RCH-H3).*2 For setting the swing range of other louvers, return to 1 and proceed same procedure respectively.
*1 This function is not able to be set with wireless remote controls or simple remote control (RCH-H3).*2 For setting the swing range of other louvers, return to 1 and proceed same procedure respectively.
●Install an over-current and earth leakage brea ker (threshold current: 30mA) specified foreach unit without fail.
●Provide a dedicated branchin g circuit and never share a branching circuit with otherequipment. If shared, disconnection at the circuit breaker may occur, which can causesecondary damage.
●Set earth of D-type.
●Connection of a cable beyond 3.5 mm 2 is not permitted. When cables of over 5.5 mm2 arein use, provide a dedicated pull box to take a branch to an indoor unit.
●Keep "remote controller line" and "power source line" away from each other on constructingof unit outside.
●Run the lines (power source, remote controller and "between indoor and outdoor unit")upper ceiling through iron pipe or other tube protection to avoid the damage by mouse andso on.
●Do not add cord in the middle of line (of indoor power source, remote controller and signal)route on outside of unit. If connecting point is flooded, it could cause problem as for electricor communication.(In the case that it is necessary to set connecting point on the signal line way, performthorough waterproof measurement.)
●Do not connect the power source line [220V/240V/380V/415V] to signal side terminal block.Otherwise, it could cause failure.
●Screw the line to terminal block without any looseness, certainly.
●Do not turn on the switch of power source, before all of line work is done.
ƽElectrical wiring work must be performed by an electlician an qualified by alocal power provider. These wiring specifications are determ ined on theassumption that the following instructions are observed:① Do not use cords other than copper ones.
Do not use any supply line lighter than one specified in parentheses for each type below.
-braided cord (code designation 60245 IEC 51), if allowed in the relevant part 2;
②Provide a separate power outlet for each outdoor or indoor unit.
③ All indoor units grouped in one system must have power source that can be turned on or off simultaneously.
④ Pay extra attention so as not to confuse signal line and power source line connection, because an error in theirconnection can be burn all the boards at once.
ƽConnection of the line ("Between indoor and outdoor unit", Earth and Remote controller)① Remove lid of control box before connect the above lines, and connect the lines to terminal block according to
number pointed on label of terminal block.In addition, pay enough attention to confirm the number to lines, because there is electrical polarity except earth line.Furthermore, connect earth line to earth position of terminal block of power source.
② Install earth leakage breaker on power source line. In addition, select the type of breaker for inverter circuit asearth leakage breaker.
③ If the function of selected earth leakage breaker is only for earth-fault protection, hand switch (switch itself and type"B" fuse) or circuit breaker is required in series with the earth leakage breaker.
Cabling system diagram (Outdoor/indoor unit connection procedure)
㿈 㿉
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㿓㩷
㿕㩷
㩷
㩷
㿟 㿠
㩷
㩷
㩷
㿈㩷 㿉
㿟 㿠
㿓
㿕
㩷
㩷
㿟 㿠
Outdoor unitPower source
Indoor unit1 Indoor unit2
Signal line (between indoor and outdoor units)
Use shielded cord for a signal line and connect “earth(signal line)” at all the indoor units andoutdoor units.
Earth
Signal line
(between indoor unit)
Earth
Remote controller
Remotecontroller line
Remotecontroller line
Power source line specification
Note (1) The cord distances are calculated with a voltage drop of 2%. If the distance should exceed theabove data, review the cord thickness to use in accordance with your extension cord regulations.
(2) When total extension of remote controller line is more than 100m, change the size of cordaccording to "③ Remote Control, Wiring and functions".
In case of Heat recovery 3-pipe systems
Branching controller of heat recovery 3-pipe systems wiring
●When this unit is used as a "Heat Recovery 3-pipe Systems", refer to the installationmanual of a branching controller (option).
Address setting is done by (1) Manual address setting or (2) Automatic address setting.In the case of (2) "Automatic address setting", it is possible to change address setting by wiredremote controller after once complete setting.As for details of setting procedure, refer to instructions attached to the outdoor unit for details.
Installation and wiring of remote controller
Remote controller
ƽBe sure to have the electrical wiring work done by qualified electric alinstaller, and use exclusive circuit.Power source with insufficient capacity and improper work can cause electric shock and fire.
ƽUse specified wire for electrical wiring, fasten the wiring to the terminalsecurely, and hold the cable securely in order not to apply unexpectedstress on the terminal.Loose connections or hold could result in abnormal heat generation or fire.
ƽArrange the electrical wires in the control box properly to prevent them fromrising. Fit the lid of the services panel property.Improper fitting may cause abnormal heat and fire.
ƽMake sure there is no dust or clogging on both the plug and the socket norloose connection of the socket before plugging, and plug in securely to theend of the blade.Accumulation of dust, clogging on the socket or plug, or loose installation of the socket could causeelectric shock and fire. Replace the socket if it is loose.
ƽUse the genuine optional parts. And installation should be performed by aspecialist.
If you install the unit by yourself, it could cause water leakage, electric shock and fire.
ƽDo not repair by yourself. And consult with the dealer about repair.Improper repair may cause water leakage, electric shock or fire.
ƽConsult the dealer or a specialist about removal of the air conditioner.Improper installation may cause water leakage, electric shock or fire.
ƽTurn off the power source during servicing or inspection work.If the power is supplied during servicing or inspection work, it could cause electric shock and injury bythe operating fan.
ƽShut off the power before electrical wiring work.It could cause electric shock, unit failure and improper running.
ƽPerform earth wiring surely.Do not connect the earth wiring to the gas pipe, water pipe, lightning rod and telephone earth wiring.
Improper earth could cause unit failure and electric shock due to a short circuit.
ƽMake sure to install earth leakage breaker on power source line.(countermeasure thing to high harmonics.)
Absence of breaker could cause electric shock.ƽUse the circuit breaker of correct c apacity.
Using the incorrect capacity one could cause the system failure and fire.
ƽDo not use any materials other than a fuse of correct capacity where a fuseshould be used.Connecting the circuit by wire or copper wire could cause unit failure and fire.
ƽUse power source line of correct capacity.Using incorrect capacity one could cause electric leak, abnormal heat generation and fire.
ƽDo not mingle solid cord and stranded cord on power source and signal sideterminal block.In addition, do not mingle difference capacity solid or stranded cord.
Inappropriate cord setting could cause loosing screw on terminal block, bad electrical contact, smoke
and fire.
ƽDo not turn off the power source immediately after stopping the operation.Be sure to wait for more than 5 minutes. Otherwise it could cause water leakage or breakdown.
ƽDo not control the operation with the circuit breaker.It could cause fire or water leakage. In addition, the fan may start operation unexpectedly and it may
cause injury.
Security instructions
WARNING
CAUTION
① Electrical Wiring Connection
② Address setting
●Do not install it on the following places.(1) Place exposed to direct sunlight (4) Hot surface or cold surface enough to generate condensation
(2) Places near heat devices (5) Place exposed to oil mist or steam directly.
(3) High humidity places (6) Uneven surface
③ Remote Control, Wiring and functions
① Install remote controller referring to the attached manual.② Wiring of remote controller should use 0.3mm2 x2 core wires or cables.
(on-site configuration)③ Maximum prolongation of remote control wiring is 600 m.
If the prolongation is over 100m, change to the size below.
But, wiring in the remote controller case should be under 0.5mm2. Change the wire size outside of the case
according to wire connecting. Waterproof treatment is necessary at the wire connecting section. Be careful about
contact failure.
100-200m.....................0.5mm2×2 core
Under 300m................0.75mm2
× 2 core
Under 400m................1.25mm2
× 2 core
Under 500m................2.0mm2
× 2 core
④ Avoid using multi-core cables to prevent malfunction.⑤ Keep remote controller line away from earth (frame or any metal of building).⑥ Make sure to connect remote controller line to the remote controller and terminal block of
indoor unit. (No polarity)
Electrical wiring work must be performed by an electrician qualified by a local power provider according
to the electrical installation technical standards and interior wiring regulations applicable to the
installation site.
ƽAccord with following items. Otherwise, there will be the risks of electric shock and fire
caused by overheating or short circuit.
Earth leakage breaker
Circuit breaker
Wiring specification
① Electrical Wiring Connection (continued)
Unit type Earth leakage breaker
Circuit breaker Wiring size
Switchbreaker
Over-current
protectorrated
capacity
Powersource
line
Wirelength
Signal lineRemote
controllerline
Earthline
22-36
15A 30mA 0.1sec 30A 15A2.0mm
2
×2
304m0.75~
1.25mm2×2
0.3mm2
×2cores2.0mm
2m61209-54
m921061-211
In case of Duct connected -High static pressure- type
③ Remote Control, Wiring and functions (continued) ④ Trial operation (continued)
When indoor unit address number is displayed on
remote controller, pushing the (MODE)
button to make the indoor unit with that number
blow air (Display example:" ").
Push the (MODE) button again to stop the
operation.
However, this operation is invalid on the
air-conditioning running.
After a unit is energized, it is possible
to display an indoor unit address by
pressing button on
the remote control unit.
Press the or button to make
sure that all indoor units connected
are displayed in order.
㿟㩷㿠㩷
㩷
㿟㩷㿠㩷
㿟㩷㿠㩷
㩷
㿈 㿉
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㩷
㩷
㿈㩷㿉㩷
㩷 㿈 㿉
㿟 㿠
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㩷
㩷
㩷
㿈 㿉
㿟 㿠
㩷
㩷
㿟 㿠
Control plural indoor units by a single remote controller
① A remote controller can control plural indoor units (up to 16)In above setting, all plural indoor units will operate under same mode and temperature setting.
② Connect all indoor units with 2 core remote controller line for group control.
③ Use the function of manual address setting to set the indoor and outdoor address number. ƻDo not forget to set the number for the outdoor units.
④ As shown in the following figure, the remote control can be used to control multiple outdoorunits.
⑤ One remote control is able to perform group control for multiple units (maximum 16 units).
ƻUse the rotary SW1 and SW2 provided on the indoor unit PCB (Printed circuit board) to set unique remote control
communication address avoiding duplication.
Outdoor unit
No.01
Outdoor unit
No.02
Indoor unit Indoor unit
Outdoor No.01
Indoor No.01
Indoor unit Indoor unit
Indoor unit Indoor unit
Action time
Indoor unit
Action time
SW1” Master”
Action time
SW1” Slave”
Switch Setting Contents
Master
Slave Slave remotecontroller
Wired remote controller: SW1Wireless kit: SW1-2
Master remotecontroller
AIR CON NO
Confirming method of indoor units
Master/slave setting when more than one remote control unit are used
A maximum of two remote control units can be connected to one indoor unit (or one group ofindoor units.)Latest "function setting" is superior than previous one.Acceptable combination is "two (2) wired remote controllers", "one (1) wired remote controllerand one (1) wireless kit" or "two (2) wireless kits".Set SW1 to "Slave" for the slave remote control unit. It was factory set to "Master" for shipment.Note:The setting "Remote control unit sensor enabled" is only selectable with the master
remote control unit in the position where you want to check room temperature.
Checking operation data
Outdoor No.02
Indoor No.04
Outdoor No.01
Indoor No.02
Outdoor No.02
Indoor No.05
Outdoor No.01
Indoor No.03
Outdoor No.02
Indoor No.06
④ Trial operation
The method of trial cooling operation
Remote controller line
(No polarity)
Remote controller line
(No polarity)
Operate the remote control unit as follows.
1. Starting a cooling test run.
①Start the system by pressing the button.
②Select “ (Cool)” with the (MODE) button.
③Press the TEST button for 3 seconds or longer.
The screen display will switch to: “ ”
④When the (SET) button is pressed while “ ” is indicated, a cooling test
run will start.
The screen display will switch to “ ”.
2. Ending a cooling test run.
Pressing the button, the (TEMP) button or (MODE) button will end a
cooling test run. (Cooling test run will end after 30 minutes pass.)
“ ” shown on the screen will go off.
Operation data can be checked with remote control unit operation.1. Press the button.
The display change “ ”2. Press the (SET) button while “ ” is displayed.When only one indoor unit is connected to remote controller, “ ” is displayed
(blinking indication during data loading).Next, operation data of the indoor unit will be displayed. Skip to step 7.
4. When plural indoor units is connected, the smallest address number of indoor unit among allconnected indoor unit is displayed.[Example]:“ ” (blinking 1 seconds) “ ” blinking.
5. Select the indoor unit number you would like to have data displayed with the button.6. Determine the indoor unit number with the (SET) button.
(The indoor unit number changes from blinking indication to continuous indication)“ ” (The address of selected indoor unit is blinking for 2 seconds.)
“ ” (A blinking indication appears while data loaded.)Next, the operation data of the indoor unit is indicated.
7. Upon operation of the button, the current operation data is displayed in order fromdata number 01.The items displayed are in the following table※Depending on models, the items that do not have corresponding data are not displayed.
8. To display the data of a different indoor unit, press the button, which allows you
to go back to the indoor unit selection screen.9. Pressing the button will stop displaying data.
Pressing the (RESET) button during remote control unit operation will undo your lastoperation and allow you to go back to the previous screen.◎If two (2) remote controllers are connected to one (1) inside unit, only the master controller is available
for trial operation and confirmation of operation data. (The slave remote controller is not available.)
Drain pump operation from remote control unit is possible. Operate a remote control unit by
following the steps described below.
1. To start a forced drain pump operation.
②Press the TEST button for three seconds or longer.
The display will change “ ”
②Press the button once and cause “ ” to be displayed.
③When the (SET) button is pressed, a drain pump operation will start.
Display: “ ”
2. To cancel a drain pump operation.
①If either (SET) or button is pressed, a forced drain pump operation will
stop. The air conditioning system will become OFF.
◎If two (2) remote controllers are connected to one (1) inside unit, only the master controller is available
for trial operation and confirmation of operation data. (The slave remote controller is not available.)
Trail operation of drain pump
※Depending on outdoor unit model, there are data not shown.
Number
01
02
03
04
05
06
07
08
09
10
11
12
21
22
23
24
25
26
27
28
29
34
35
36
37
38
39
Data Item
(Operation Mode)
(Set Temperature)
(Return Air Temperature)
(Remote Controller Thermistor Temperature)
(Indoor Unit Heat Exchanger Thermistor / U Bend)
(Indoor Unit Heat Exchanger Thermistor /Capillary)
(Indoor Unit Heat Exchanger Thermistor /Gas Header)
• The initial function setting for typical using is performed automatically by the indoor unit connected, when remote controller and
indoor unit are connected.
As long as they are used in a typical manner, there wiil be no need to change the initial settings.
If you would like to change the initial setting marked “ ” , set your desired setting as for the selected item.The procedure of functional setting is shown as the following diagram.
[Flow of function setting]
Start : Stop air-conditioner and press “ ” (SET) and
“ ” (MODE) buttons at the same time for over three seconds.
Finalize : Press “ ” (SET) button.
Reset : Press “ ” (RESET) button.
Select : Press button.
End : Press button.
It is possible to finish above setting on the way,
and unfinished change of setting is unavailable.
Record and keep the
setting
Note 1: The initial setting marked is decided by connected indoor and outdoor unit, and is automatically defined as following table.
Function No.
Remote controller function02
Remote controller function06
Remote controller function07
Remote controller function13
Remote controller function15
Default Model
Indoor unit with only one of air flow setting
Heat pump unit
Exclusive cooling unit
"Auto-RUN" mode selectable indoor unit.
Indoor unit without "Auto-RUN" mode
Indoor unit with two or three step of air flow setting
Ԝ Function Setting by Remote Controller (continued)
01
When you use at 50Hz area
When you use at 50Hz area
When you use at 60Hz area
Automatical operation is impossible
Temperature setting button is not working
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
Functionsetting
Mode button is not working
On/Off button is not working
Fan speed button is not working
Louver button is not working
Timer button is not working
Remote thermistor is not working.
Remote thermistor is working.
Remote thermistor is working, and to be set for producing +3.0 C increase in temperature.
Remote thermistor is working, and to be set for producing +2.0 C increase in temperature.Remote thermistor is working, and to be set for producing +1.0 C increase in temperature.
Remote thermistor is working, and to be set for producing -1.0 C increase in temperature.
Remote thermistor is working, and to be set for producing -2.0 C increase in temperature.
Remote thermistor is working, and to be set for producing -3.0 C increase in temperature.
If you change the range of set temperature, the indication of set temperaturewill vary following the control.If you change the range of set temperature, the indication of set temperaturewill not vary following the control, and keep the set temperature.
If you change the remote controller function "14 ",you must change the indoor function "04 " accordingly.You can select the louver stop position in the four.The louver can stop at any position.
In normal working indication, indoor unit temperature is indicated instead of airflow.(Only the master remote controller can be indicated.)
Heating preparation indication should not be indicated.
Temperature indication is by degree CTemperature indication is by degree F
ON/OFF button(finished)
In case of Single split series, by connecting ventilation device to CNT of theindoor printed circuit board (in case of VRF series, by connecting it to CND of theindoor printed circuit board), the operation of ventilation device is linked with theoperation of indoor unit.In case of Single split series, by connecting ventilation device to CNT of the indoor printedcircuit board (in case of VRF series, by connecting it to CND of the indoor printed circuitboard), you can operate /stop the ventilation device independently by (VENT) button.
If you input signal into CNT of the indoor printed circuit board from external, theindoor unit will be operated independently according to the input from external.If you input into CNT of the indoor printed circuit board from external, all units whichconnect to the same remote controller are operated according to the input from external.
Ԝ Function Setting by Remote Controller (continued)
Indoor unit No. are indicated only whenplural indoor units are connected.
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
Note1: Fan setting of "HIGH SPEED"
Permission/prohibition control of operation will be vali d.
Functionsetting
To set other indoor unit, press AIRCON NO. button, whichallows you to go back to theindoor unit selection screen(for example: I/U 000 ).
The filter sign is i ndicated after running for 180 hours.The filter sign is i ndicated after running for 600 hours.The filter sign is i ndicated after running for 1000 hours.The filter sign is indicated after running for 1000 hours, then the indoor unit will be stopped bycompulsion after 24 hours.
If you change the indoor function "04 ",
you must change the remote controller function "14 " accordingly.
You can select the louver stop position in the four.The louver can stop at any positi on.
With the VRF series, it is used to stop all indoor units connected with the same outdoor unit immediately.When stop signal is inputed from remote on-off terminal "CNT-6", all indoor units are stopped immediately.
To be reset for producing +3.0 C increase in temperature during heating.
To be reset for producing +2.0 C increase in temperature during heating.To be reset for producing +1.0 C increase in temperature during heating.
To be reset producing +2.0 C increase in return air temperature of indoor unit.
To be reset producing +1.5 C increase in return air temperature of indoor unit.To be reset producing +1.0 C increase in return air temperature of indoor unit.
To be reset producing -1.0 C increase in return ai r temperature of indoor unit.
To be reset producing -1.5 C increase in return ai r temperature of indoor unit.
To be reset producing -2.0 C increase in return ai r temperature of indoor unit.
When heating thermostat is OFF, f an speed is low speed.
When heating thermostat is OFF, f an speed is set speed.
When heating thermostat is OFF, fan speed is operated intermittently.
When heating thermostat is OFF, the fan is stopped.When the remote thermistor is working, "FAN OFF" is set automatically.
Do not set "FAN OFF" when the indoor unit's thermistor is working.
Drain pump is run during cooling and dry.
Drain pump is run during cooling, dry and heating.Drain pump is run during cooling, dry, heating and fan.
Drain pump is run during cooling, dry and fan.
After cooling is stopped the fan does not perform extra operation.
After cooling is stopped the fan perform extra operation for half an hour.After cooling is stopped the fan perform extra operation for an hour.
After cooling is stopped the fan perform extra operation for six hours.
After heating is stopped or heating thermostat is OFF, the fan does not perform extra operation.
After heating is stopped or heating thermostat is OFF,the fan perform extra operation for half an hour.After heating is stopped or heating thermostat is OFF,the fan perform extra operation for two hours.
After heating is stopped or heating thermostat is OFF, the fan perform extra operation for six hours.
During heating is stopped or heating thermostat is OFF, the fan perform intermittent operation for five
minutes with low fan speed after twenty minutes' OFF.
During heating is stopped or heating thermostat is OFF, the fan perform intermittent operation for five
minutes with low fan speed after five minutes' OFF.
Working only with the Single split series.
To control frost prevention, the indoor fan tap is raised.
Change of indoor heat exchanger temperature to start frost prevention control.
●The control content of indoor units can be switched in following way. ( is the default setting)
Switch No. control content
SW1 Indoor unit address (tens place)
SW2 Indoor unit address (ones place)
SW3 Outdoor unit address (tens place)
SW4 Outdoor unit address (ones place)
SW5㧙1 ON Fixed previous version of Super Link protocol
OFF Automatic adjustment of Super Link protocolSW5㧙2 Indoor unit address (hundreds place)
SW6㧙1 ~ 4 Model capacity setting
SW7㧙1 ON Operation check, Drain motor test run
OFF Normal operation
⑦ Function of CNT connector of indoor printed circuit board
●CNT connector (local) vendor modelConnector : Made by molex 5264-06Terminals : Made by molex 5263 T
⑧Troubleshooting
+12
Indoor units control box
(Blue 6P)
Printed circuit board
Red
BlackYellow
BlueBrownOrange
Remote start/stop kit
Note (1): Do not use the length over 2 meter
White
BlackYellowBlueBrown
Orange
OrangeInputpower
Remote start / stop button or timer point
Output 1: Operation output (there is output when unit is in operation.)
Output 2: Heating output (there is output when operation MODE is HEATING.)
Output 3: Thermo ON output
Output 4: Inspection output (there is out put when unit is stopped by error.)
Input 5: XR5 OFF ON UNIT ON
XR5 ON OFF UNIT OFF
XR5 OFF ON Receiving pulse signal, "ON/OFF"is reversed.
Factory set
Local set
Refer to instruction manuals of "Branching controller", when the indoor unit isconnected to "Heat recovery 3-pipe systems".
Display onremotecontroller
LED on indoor circuit boardContent
Off
E1
E2
E3
E5
E6
E7
E9
E10
E11
E12
E16E18
E19
E28
Over E30
E63
Off
Off
Off
Off
Off
Off
Off
Off
N ot s ur e N ot s ur e
blinking once
blinking once
blinking once
blinking once
blinking onceblinking once
blinking once
blinking once
Duplication of indoor address No. (can only be detected during operation)Excessnumber of remote controllers(can only be detected during operation)Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinkingContinuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
Continuous blinking
blinking twice
blinking twice
Continuousblinking
Fault on the transmission between indoorcircuit board and remote control
Indoor computer abnormal
Outdoor power off or lack phaseThere is no corresponding outdoor unit address.
Fault on outdoor-indoor transmission
Indoor air inhaling sensor broken or short-circuit
Float SW actions (only with FS)
Excess number of remote controller connections
The master indoor unit is not set properly.
Fan motor abnormalThe address configuration fault for master-slave indoor units.
Configuration fault on running checking model
Remote controller sensor interrupted
Outdoor unit checking (outdoor circuit board LED checking)
Emergency stop.
Super link
New specification
Old specification
Indoor unit address SW
Indoor No. Outdoor No.
Indoor heat exchange sensor interrupted or short-circuit
Off
Normal
Fault on power, indoor power off or lack phase
Continuous blinking
red (checking) green (normal)
001̚ 127 49
0̚ 47 48ˈ49
48ˈ49 0̚ 47
Error code of indoor unit
Note
Butt splice
CNT
Common
Output
Output
Output
Output
●Function
(Application coverage0.75~1.25mm2)
The operation data is saved when the situation of abnormal operation happen,and the data can be confirmed by remote controller.
[Operating procedure]
1. Press the button.The display change “ ”
2. Once, press the button, and the display change “ ”.
3. Press the (SET) button and abnormal operation data mode is started.
4. When only one indoor unit is connected to remote controller, following is
displayed.
①The case that there is history of abnormal operation.
Error code and “ ” is displayed.
[Example]: [E8] (ERROR CODE)
“ ” is displayed (blinking indication during data loading).
Next, the abnormal operation data of the indoor unit will be displayed.
Skip to step 7.
②The case that there is not history of abnormal o peration.
“ ” is displayed for 3 seconds and this mode is closed.
5. When plural indoor units is connected, following is displayed.
①The case that there is history of abnormal operation.
Error code and the smallest address number of indoor unit among all
connected indoor unit is displayed.
[Example]: [E8] (ERROR CODE)
“ ” blinking
②The case that there is not history of abnormal o peration.
Only address number is displayed.
6. Select the indoor unit number you would like to have data displayed with the
button.
7. Determine the indoor unit number with the (SET) button.
[Example]: [E8] (ERROR CODE)
“ ” (The address of selected indoor unit is blinking for 2 seconds.)
[E8] “ ” (A blinking indication appears while data loaded.)
Next, the abnormal operation data is indicated.
If the indoor unit doing normal operation is selected, “ ” is displayed for 3 seconds and address of indoor unit is displayed.
8. By the button, the abnormal operation data is displayed.
Displayed data item is based on ④ Trial operation
※Depending on models, the items that do not have corresponding data are not displayed.
9. To display the data of a different indoor unit, press the AIR CON No. button, which allows you to go back to the indoor unit slection screen.
10.Pressing the button will stop displaying data.
Pressing the (RESET) button during remote control unit operation will undo your last operation and allow you to go back to the previous screen.
◎If two (2) remote controllers are connected to one (1) inside unit, only the master controller is available for trial operation and confirmation of operationdata. (The slave remote controller is not available.)
Prepare on site Remote controller cord (2 cores) the insulated thickness in 1mm or more.
[In case of embedding cord] Erectrical box, M4 screw (2 pieces)[In case of exposing cord] Cord clamp (if needed)
Screw
Installation procedure
Open the cover of remote controller , and remove the screw under thebuttons without fail.
Remove the upper case of remote controller.
Insert a flat-blade screwdriver into the dented part of the upper partof the remote controller, and wrench slightly.
[In case of embedding cord]
Embed the erectrical box and remote controller cord beforehand.
Prepare two M4 screws (recommended length is 12-16mm) on site, and install the lower case to erectrical box.Choose either of the following two positions in fixing it with screws.
Connect the remote controller cord to the terminal block.
Connect the terminal of remote controller (X,Y) with the terminal ofindoor unit (X,Y). (X and Y are no polarity)
Install the upper case as before so as not to catch up the remote controller cord,
and tighten with the screws.
[In case of exposing cord]
You can pull out the remote controller cord from left upper part or center upper part.
Cut off the upper thin part of remote controller lower case with a nipper or knife,and grind burrs with a file etc.
Install the lower case to the flat wall with attached two wooden screws.
WARNING
CAUTION
Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpected stress on theterminal.
Loose connection or hold will cause abnormal heat generation or fire.
Make sure the power supply is turned off when electric wiring work.
Otherwise, electric shock, malfunction and improper running may occur.
DO NOT install the remote controller at the following places in order to avoid malfunction.
DO NOT leave the remote controller without the upper case.
(1) Places exposed to direct sunlight
(2) Places near heat devices
(3) High humidity places
In case the upper cace needs to be detached, protect the remote controller with a packaging box or bag in
order to keep it away from water and dust.
(4) Hot surface or cold surface enough to generate condensation
(5) Places exposed to oil mist or steam directly
(6) Uneven surface
Tighten the screws after
cutting off the thin part of
screw mounting part.
Controller cord
Erectrical box(Prepare on site)
Lower part Lower part
Upper part
Lower case Lower case
Wiring ouletWiring oulet
M4 screw 2 (Prepare on site)
The thin part
Upper part
Lower
Lower case
Upper
Lower
Lower case
Upper
7.3 Instullation manual for wired remote controller (Option parts : RC-E4)
Wiring of remote controller should use 0.3mm2 2 core wires or cables. (on-site configuration)Maximum prolongation of remote controller wiring is 600 m.
Under 400m.......................1.25mm2 2 coresUnder 500m.......................2.0mm2 2 cores
Master/ slave setting when more than one remote controllers are used
A maximum of two remote controllers can be connected to one indoor unit (or one group of indoor units.)
Remote controller cord (no polarity)
Remote controllerSW1 "Master"
Switch Setting Contents
M Master remote control lerSW1
S Slave remote controller
The indication when power source is supplied
When power source is turned on, the following is displayed on the remote controller until the
communication between the remote controller and indoor unit settled.
Master remote controller : " "
Slave remote controller : " "
At the same time, a mark or a number will be displayed for two seconds first.
This is the software's administration number of the remote controller, not an error cord.
When remote controller cannot communicate with the indoor unit for half an hour, the below indication willappear.
Check wiring of the indoor unit and the outdoor unit etc.
Connect the remote controller cord to theterminal block.
Connect the terminal of remote controller (X,Y)with the terminal of indoor unit (X,Y).
(X and Y are no polarity)Wiring route is as shown in the right diagram
depending on the pulling out direction.
The wiring inside the remote controller case should be within 0.3mm2 (recommended) to 0.5mm2.
The sheath should be peeled off inside the remote controller case.
The peeling-off length of each wire is as below.
Pulling out from upper left Pulling out from upper center
X wiring : 215mmY wiring : 195mm
X wiring : 170mmY wiring : 190mm
Install the upper case as before so as not to catch up the remote controller cord, and tighten withthe screws.In case of exposing cord, fix the cord on the wall with cord clamp so as not to slack.
In case of pulling out fromupper left
In case of pulling out fromupper center
The peeling-off lengthof sheath
Wiring Wiring
Upper UpperSheath
Upper case Upper caseBoard Board
Lower Lower
If the prolongation is over 100m, change to the size below.
But, wiring in the remote controller case should be under 0.5mm2 . Change the wire size outsideof the case according to wire connecting. Waterproof treatment is necessary at the wire
connecting section. Be careful about contact failure.
Remote controllerSW1 "Slave"
Lower
Master
Slave
Upper
Board
The left mark is only anexample. Other marks mayappear.
Sheath
Indoor units
Set SW1 to "Slave" for the slave remote controller. It was factory set to "Master" for shipment.Note: The setting "Remote controller thermistor enabled" is only selectable with the master remote
controller in the position where you want to check room temperature.
The air conditioner operation follows the last operation of the remote controller regardless of themaster/ slave setting of it.
Upper limit and lower limit of set temperature can be changed with remote controller.
Upper limit setting: valid during heating operation. Possible to set in the range of 20 to 30˚C (68 to 86˚F).
Lower limit setting: valid except heating (automatic, cooling, fan, dry) Possible to set in the range of 18 to 26˚C (62 to
79˚F).
When you set upper and lower limit by this function, control as below.
1. When TEMP RANGE SET, remote controller function of function setting mode is "INDN CHANGE" (factory setting),
During heating, you cannot set the value exceeding the upper limit.
During operation mode except heating, you cannot set the value below the lower limit.
2. When TEMP RANGE SET, remote controller function of function setting mode is "NO INDN CHANGE"
During heating, even if the value exceeding the upper limit is set, upper limit value will be sent to the indoor unit.But, the indication is the same as the temperature set.
During except heating, even if the value lower than the lower limit is set, lower limit value will be sent to the indoor unit.
But, the indication is the same as the temperature set.
How to set upper and lower limit value
1. Stop the air-conditioner, and press (SET) and (MODE) button at the same time for over threeseconds .
The indication changes to "FUNCTION SET ".
2. Press button once, and change to the "TEMP RANGE " indication.
3. Press (SET) button, and enter the temperature range setting mode.
4. Select "UPPER LIMIT " or "LOWER LIMIT " by using button.
5. Press (SET) button to fix.
6. When "UPPER LIMIT " is selected (valid during heating)
Press (SET) button to fix. Indication example: "UPPER 26˚C" (Displayed for two seconds)After the fixed upper limit value displayed for two seconds, the indication will return to "UPPER LIMIT ".
7. When "LOWER LIMIT " is selected (valid during cooling, dry, fan, automatic)
Indication: " SET UP" "LOWER 18˚C "
8. Press ON/OFF button to finish.
Previous button
If upper limit value is set
If upper limit value is set
If lower limit value is set
If lower limit value is set
Indication: " SET UP" "UPPER 30˚C "
Select the upper limit value with temperature setting button . Indication example: "UPPER 26˚C "(blinking)
Select the lower limit value with temperature setting button . Indication example: "LOWER 24˚C "
(blinking)
Press (SET) button to fix. Indication for example: "LOWER 24˚C" (Displayed for two seconds)
After the fixed lower limit value displayed for two seconds, the indication will return to "LOWER LIMIT ".
It is possible to finish by pressingON/OFF button on the way, but
(remote controller function) or "I/U FUNCTION " (indoor
unit function).
How to set function
2.
1.
3.
4.
5.
It is possible to finish by pressing ON/OFF button on the way, but unfinished change of setting isunavailable.During setting, if you press (RESET) button, you return to the previous screen.
Setting is memorized in the controller and it is saved independently of power failure.
How to check the current setting
When you select from "No. and funcion" and press set button by the previous operation, the "Setting" displayed first is the currentsetting.(But, if you select "ALL UNIT ", the setting of the lowest number indoor unit is displayed.)
Stop air-conditioner and press (SET) (MODE)
buttons at the same time for over three seconds, and the
"FUNCTION SET " will be displayed.
Press (SET) button.
Selecct " FUNCTION " (remote controller function) or "I/UFUNCTION " (indoor unit function).
Operation messageFunction description: ,setting description: Function No.
Fixing button
Finishing button7
2
1
6
Starting button
Previous screen buttonIndoor unit selection button
Press (SET) button.
6.
"DATA LOADING" (Indication with blinking)
Display is changed to "01 GRILLE SET".
7.
"DATA LOADING" (Blinking for 2 to 23 seconds to read the data)
(1)
(2)
(3)
Press (SET) button.
On the occasion of remote controller function selection On the occasion of indoor unit function selection
Press or button."No. and function"are indicated by turns on the remotecontroller function table, then you can select from them.(For example)
Press or button.Select the setting.
Press or button.
Select the setting.
The current setting of selected function is indicated.(for example) "AUTO RUN ON" If "02 AUTO RUN SET" isselected
Press (SET) button.
Press (SET) button.
Press or button.
Press or button.
Select the number of the indoor unit you are to setIf you select "ALL UNIT ", you can set the same setting withall unites.
Press (SET)
"SET COMPLETE" will be indicated, and the setting will becompleted.Then after "No. and function" indication returns, Set as thesame procedure if you want to set continuously ,and if tofinish, go to 7.
Press ON/OFF button.
Setting is finished.
Indication is changed to "02 FAN SPEED SET".
Go to .
[Note]
If plural indoor units are connected to a remote controller,the indication is "I/U 000" (blinking) The lowest number ofthe indoor unit connected is indicated.
"No. and function" are indicated by turns on the indoor unit functiontable, then you can select from them.
(For example)
The current setting of selected function is indicated.(For example) "STANDARD" If "02 FAN SPEED SET" isselected.
Press (SET) button."SET COMPLETE" will be indicated, and the setting will becompleted.
Then after "No. and function" indication returns, set as the sameprocedure if you want to set continuously , and if to finish, go to 7.
Setting
Function No.
Function
When plural indoor units are connected to a remote controller,press the AIRCON NO. button, which allows you to go back tothe indoor unit selection screen. (example "I/U 000 ")
KX SERIES INSTALLATION MANUAL◎This installation manual deals with outdoor units and general installation specifications only. For indoor units, please refer to the respective installation manuals supplied with your
units.
◎Please read this manual carefully before you set to installation work and carry it out according to the instructions contained in this manual.
Outdoor unit capacity FDC224∼335
SAFETY PRECAUTIONS●We recommend you to read this "SAFETY PRECAUTIONS" carefully before the installation work in order to gain full advantage of the functions of the unit and to avoid malfunction due to
mishandling.
●The precautions described below are divided into and . The matters with possibilities leading to serious consequences such as death or serious personal
injury due to erroneous handling are listed in the and the matters with possibilities leading to personal injury or damage of the unit due to erroneous handling including
probability leading to serious consequences in some cases are listed in . These are very important precautions for safety. Be sure to observe all of them without fail.
●The meaning of"Marks"used here are as shown on the right.
●Be sure to confirm no anomaly on the equipment by commissioning after completed installation and explain the operating methods as well as the maintenance methods of this equipment to
the user according to the owner's manual.
●Keep the installation manual together with owner's manual at a place where any user can read at any time. Moreover if necessary, ask to hand them to a new user●This unit complies with EN61000-3-3.
For outdoor unit, EN61000-3-2 is not applicable as consent by the utility company or notification to the utility company is given before usage. (Only 224, 280)
For outdoor unit, EN61000-3-12 is not applicable as consent by the utility company or notification to the utility company is given before usage. (Only 335)
Never do it under any circumstance. Always do it according to the instruct ion.
WARNINGS
WARNINGS
CAUTIONS
CAUTIONS
WARNING CAUTION●Installation must be carried out by the qualified installer.
If you install the system by yourself, it may cause serious trouble such as water leaks, electric shocks, fire and personal injury ,as a result of a system malfunction.●Install the system in full accordance with the instruction manual.
Incorrect installation may cause bursts, personal injury, water leaks, electric shocks and fire.●Use the original accessories and the specified components for installation.
If parts other than those prescribed by us are used, It may cause fall of the unit, water leaks, electric shocks, fire, refrigerant leak,substanard performance, contrl failure and personal injury.●When installing in small rooms, take prevention measures not to exceed the density limit of refrigerant in the event of leakage
accordance with ISO5149.Consult the expert about prevention measures. If the density of refrigerant exceeds the limit in the event of leakage, lack ofoxygen can occur, which can cause serious accidents.● Ventilate the working area well in the event of refrigerant leakage during installation.
If the refrigerant comes into contact with naked flames, poisonous gas is produced.● After completed installation, check that no refrigerant leaks from the system.
If refrigerant leaks into the room and comes into contact with an oven or other hot surface, poisonous gas is produced.●Hang up the unit at the specified points wi th ropes which can support the weight in lift ing for portage. And to avoid jolting out of
alignment, be sure to hang up the unit at 4-point support.
An improper manner of portage such as 3-point support can cause death or serious personal injury due to falling of the unit.●Install the unit in a location with good support.
Unsuitable installation locations can cause the unit t o fall and cause material damage and personal injury.●Ensure the unit is stable when installed, so t hat it can withstand earthquakes and strong winds.
Unsuitable installation locations can cause the unit t o fall and cause material damage and personal injury.●The electrical installation must be carried out by the qualified electrician in accordance with "the norm for electrical work" and"national wiring regulation", and the system must be connected to the dedicated circuit.Power supply with insufficient capacity and incorrect function done by improper work can cause electric shocks and fire.●Be sure to shut off the power before starting electrical work.
Failure to shut off the power can cause electric shocks, unit failure or incorrect function of equipment.●Be sure to use the cables conformed to safety standard and cable ampacity for power distribution work.
Unconformable cables can cause electric leak, anomalous heat production or fire.●Use the prescribed cables for electrical connection, tighten the cables securely in terminal block and relieve the cables correctly
to prevent overloading the terminal blocks.Loose connections or cable mountings can cause anomalous heat production or fire.● Arrange the wiring in the control box so that it cannot be pushed up further into the box. Install the service panel correctly.
Incorrect installation may result in overheating and fire.●In connecting the power cable, make sure that no anomakies such as dust deposits, socket clogging or wobble are found and
insert the plug securely. Accumulation of dust, clogging on the socket, or looseness of plugging can cause electric shocks and fire.●Be sure not to reuse existing refrigerant pipes
Conventional refrigerant oil or chlorine contained in the conventional refrigerant which is remaining in the existing refrigerantpipes can cause deterioration of refrigerant oil of new unit. And 1.6 times higher pressure of R410A refrigerant than conventionalone can cause burst of existing pipe, personal injury or serious accident.●Do not perform brazing work in the airti ght room
It can cause lack of oxygen.●Use the prescribed pipes, flare nuts and tools for R410A.
Using existing parts (for R22 or R407C) can cause the unit failure and serious accidents due to burst of the refrigerant circuit.●Tighten the flare nut by using double spanners and torque wrench according to prescribed method. Be sure not to tighten the
flare nut too much.Loose flare connection or damage on the flare part by tightening with excess torque can cause burst or refrigerant leaks whichmay result in lack of oxygen.●Do not open the service valves for liquid line and gas line until completed refrigerant piping work, air tightness test and evacuation.
If the compressor is operated in state of opening service valves before completed connection of refrigerant piping work, you mayincur frost bite or injury from an abrupt refrigerant outflow and air can be sucked into refrigerant circuit, which can cause burst orpersonal injury due to anomalously high pressure in the refrigerant.●Do not put the drainage pipe directly into drainage channels where poisonous gases such as sulphide gas can occur.
Poisonous gases will flow into the room through drainage pipe and seriously affect the user's health and safety. It can also cau sethe corrosion of the indoor unit and resultant unit failure or refrigerant leak.●Only use prescribed optional parts. The installation must be carried out by the qualified installer.
If you install the system by yourself, it can cause serious trouble such as water leaks, electric shocks, fire.●Do not perform any change of protective device itself or its setup condition
The forced operation by short-circuiting protective device of pressure switch and temperature controller or the use of nonspecified component can cause fire or burst.●Be sure to switch off the power supply in the event of i nstallation, inspection or servicing.
If the power supply is not shut off, there is a risk of electric shocks, unit failure or personal injury due to the unexpected start of fan.●Consult the dealer or an expert regarding removal of the unit.
Incorrect installation can cause water leaks, electric shocks or fire.●Stop the compressor before closing valve and disconnecting refrigerant pipes in case of pump down operation.
If disconnecting refrigerant pipes in state of opening service valves before compressor stopping, you may incur frost bite or injuryfrom an abrupt refrigerant outflow and air can be sucked, which can cause burst or personal injury due to anomalously highpressure in the refrigerant circuit.
●Ensure that no air enters in the refrigerant circuit when the unit is installed and removed.If air enters in the refrigerant circuit, the pressure in the refrigerant circuit becomes too high, which can cause burst andpersonal injury.●Do not run the unit with removed panels or protections
Touching rotating equipments, hot surfaces or high voltage parts can cause personal injury due to entrapment, burn or electric shocks. ●
Be sure to fix up the service panels.Incorrect fixing can cause electric shocks or fire due to intrusion of dust or water.●Do not perform any repairs or modifications by yourself. Consult the dealer if the unit requires repair.
If you repair or modify the unit, it can cause water leaks, electric shocks or fire.
●Use the circuit breaker for all pole with correct capacity.Using the incorrect circuit breaker, it can cause the unit malfunction and fire.
●Take care when carrying the unit by hand.If the unit weights more than 20kg, it must be carried by two or more persons. Do not carry by the plastic straps, always use the carry handlewhen carrying the unit by hand. Use gloves to minimize the risk of cuts by the aluminum fins.
●Dispose of any packing materials correctly. Any remaining packing materials can cause personal injury as it contains nails and wood. And to avoid danger of suffocation,be sure to keep the plastic wrapper away from children and to dispose after tear it up.
●Pay attention not to damage the drain pan by weld spatter when welding work is done near the indoor unit.If weld spatter entered into the indoor unit during welding work, it can cause pin-hole in drain pan and result in waterleakage. To prevent such damage, keep the indoor unit in its packing or cover it.
●Be sure to insulate the refrigerant pipes so as not to condense t he ambient air moisture on them.Insufficient insulation can cause condensation, which can lead to moisture damage on the ceiling, floor, furniture and anyother valuables.
●Be sure to perform air tightness test by pressurizing with nitrogen gas after completed refrigerant piping work. If the density of refrigerant exceeds the limit in the event of refrigerant leakage in the small room, lack of oxygen can occur,which can cause serious accidents.
●Perform installation work properly according to this installation manual.Improper installation can cause abnormal vibrations or increased noise generation.
●Carry out the electrical work for ground lead with care.
Do not connect the ground lead to the gas line, water line, lightning conductor or telephone line's ground lead. Incorrectgrounding can cause unit faults such as electric shocks due to short-circuiting. Never connect the grounding wire to aޓgas pipe because if gas leaks, it could cause explosion or ignition.
●Never connect the grounding wire to a gas pipe because if gas leaks, It could explosion or ignition.
●Earth leakage breaker must be installedIf the earth leakage breaker is not installed, it can cause fire or electric shocks.
●Do not use any materials other than a fuse with the correct rating in the location where fuses are to be used.Connecting the circuit with copper wire or other metal thread can cause unit failure and fire.
●Do not install the unit near t he location where leakage of combustible gases can occur.If leaked gases accumulate around the unit, it can cause fire.
●Do not install the unit where corrosive gas (such as sulfurous acid gas etc.) or combustible gas (such as thinner and petroleumgases) can accumulate or collect, or where volatile combustible substances are handled.Corrosive gas can cause corrosion of heat exchanger, breakage of plastic parts and etc. And combustible gas can cause fire.
●Secure a space for installation, inspection and maintenance specified in the manual.Insufficient space can result in accident such as personal injury due to falling from the installation place.
●When the outdoor unit is installed on a roof or a high place, provide permanent ladders and handrails along the accessroute and fences and handrails around the outdoor unit.If safety facilities are not provided, it can cause personal injury due to falling from the installation place.
●Do not install nor use the system close to the equipment that generates electromagnetic fields or high frequency harmonicsEquipment such as inverters, standby generators, medical high frequency equipments and telecommunication equipments canaffect the system, and cause malfunctions and breakdowns. The system can also affect medical equipment andtelecommunication equipment, and obstruct its function or cause jamming.
●Do not install the outdoor unit in a location where insects and small animals can inhabit.Insects and small animals can enter the electric parts and cause damage or fire. Instruct the user to keep the surroundings clean.
●Do not use the base flame for outdoor unit which is corroded or damaged due to long periods of operation.Using an old and damage base flame can cause the unit falling down and cause personal injury.
●Do not install the unit in the locations listed below• Locations where carbon fiber, metal powder or any powder is floating.• Locations where any substances that can affect the unit such as sulphide gas, chloride gas, acid and alkaline can occur.• Vehicles and ships• Locations where cosmetic or special sprays are often used.• Locations with direct exposure of oil mist and steam such as kitchen and machine plant.
• Locations where any machines which generate high frequency harmonics are used.• Locations with salty atmospheres such as coastlines• Locations with heavy snow (If installed, be sure to provide base flame and snow hood mentioned in the manual)• Locations where the unit is exposed to chimney smoke• Locations at high altitude (more than 1000m high)• Locations with ammonic atmospheres• Locations where heat radiation from other heat source can affect the unit• Locations without good air circulation.• Locations with any obstacles which can prevent inlet and outlet air of the unit• Locations where short circuit of air can occur (in case of multiple units installation)• Locations where strong air blows against the air outlet of outdoor unitIt can cause remarkable decrease in performance, corrosion and damage of components, malfunction and fire.
●Do not install the outdoor unit in the locations listed below.• Locations where discharged hot air or operating sound of the outdoor unit can bother neighborhood.• Locations where outlet air of the outdoor unit blows directly to an animal or plants. The outlet air can affect adversely to
the plant etc.• Locations where vibration can be amplified and transmitted due to insufficient strength of structure.• Locations where vibration and operation sound generated by the outdoor unit can affect seriously.
(on the wall or at the place near bed room)• Locations where an equipment affected by high harmonics is placed. (TV set or radio receiver is placed within 5m)• Locations where drainage cannot run off safely.It can affect surrounding environment and cause a claim
●Do not use the unit for special purposes such as storing foods, cooling precision instruments and preservation of animals,plants or art.It can cause the damage of the items.
●Do not touch any buttons with wet handsIt can cause electric shocks
●Do not shut off the power supply immediately after stopping the operation.Wait at least 5 minutes, otherwise there is a risk of water leakage or breakdown.
●Do not control the system with main power switch.It can cause fire or water leakage. In addition, the fan can start unexpectedly, which can cause personal injury.
●Do not touch any refrigerant pipes with your hands when the system is in operation.During operation the refrigerant pipes become extremely hot or extremely cold depending the operating condition, and it
can cause burn injury or frost injury.●Do not operate the outdoor unit with any article placed on it. You may incur property damage or personal injure from a fall of the article.●Do not step onto the outdoor unit.
You may incur injury from a drop or fall.
When install the unit, be sure to check whether the selection of installation place, power supply specifications, usage limitation (piping length, height differences betweenindoor and outdoor units, power supply voltage and etc.) and installation spaces.
● Do not use any refrigerant other than R410A. R410A will rise to pressure about 1.6 times higher than that of a conventional refrigerant.● A unit designed for R410A has adopted a different size outdoor unit service valve charge port and a different size check joint provided in the unit to
prevent the charging of a wrong refrigerant by mistake. The processed dimension of the flared part of a refrigerant pipe and a flare nut's parallel sidemeasurement have also been altered to raise strength against pressure. Accordingly, you are required to arrange dedicated R410A tools listed in thetable on the right before installing or servicing this unit.
● Do not use a charge cylinder. The use of a charge cylinder will cause the refrigerant composition to change, which results in performance degradation.● In charging refrigerant, always take it out from a cylinder in the liquid phase.● All indoor units must be models designed exclusively for R410A. Please check connectable indoor unit models in a catalog, etc.
(A wrong indoor unit, if connected into the system, will impair proper system operation)
Caution●Be sure to read this manual before installation to follow the proper installation methods.
●When installing the indoor unit, read the installation manual of indoor unit.
●Optional distribution parts are required for the piping (Branch pipe set, header set). For details, refer to the catalog, etc.
●Make sure to install the earth leakage breaker. (Select a product compatible with high frequency.)
●There is risk of damaging the compressor if the unit is operated while the discharge pipe thermistor, suction pipe thermistor, pressure sensor, etc. are removed. Never attempt tooperation in such condition.
1. BEFORE BEGINNING INSTALLATION (Check that the models, power supply specifications, piping, wiring are correct.)
Name Quantity Location of use
Accessory
Wire 2
1
1
1
Insert this in CNG on the outdoor unit PCB when using the silencing mode orforced cooling mode Secured in the control box with adhesive tape.
It is attached to the bracket with an adhesive tape
in the proximity of the service valve.
Attached on the base below the operation valve.
Attached on the base below the operation valve.
Edging
Attachedwire
Instruction manual
Use it for protection of a knock-out hole.
Use this when connecting gas pipe.
When the installation work is completed,
give instructions to the customer and ask him/her to keep it.
[Items sold separately]
Refrigerant pipe distribution parts, which are not contained in the package, will be required for installation. As for refrigerant pipe distribution parts, we offer branching pipe sets (Model type: DIS) and header sets (Model type: HEAD) as parts used on the indoor side of piping.Please select one suiting your application. In selecting distribution parts, please also refer to “4. REFRIGERANT PIPING.”If you are not sure which parts to select, please consult with your dealer or the manufacture.Use refrigerant branching pipe sets and header sets designed exclusively for R410A without fail.
2. INSTALLATION LOCATION (Obtain approval from the customer when selecting the installation area.)
2-1. Selecting the installation location〇 Where air is not trapped.〇 Where the installation fittings can be firmly installed.〇 Where any object does not prevent inlet or outlet air.〇 Out of the heat range of other heat sources.〇Where strong winds will not blow against the outlet air.
〇 A place where stringent regulation of electric noises is applicable.〇 Where it is safe for the drain water to be discharged.〇 Where noise and hot air will not bother neighboring residents.〇 Where snow will not accumulate.〇 A place where no TV set or radio receiver is placed within 5m.
(If electrical interference is caused, seek a place less likely to cause the problem)Please note
a) If there is a possibility of a short-circuit, then install a flex flow adapter.b) When installing multiple units, provide sufficient intake space so that a short-circuit does not occur.c) In areas where there is snowfall, install the unit in a frame or under a snow hood to prevent snow from accumulating on it.
(Inhibition of collective drain discharge in a snowy country)d) Do not install the equipment in areas where there is a danger for potential explosive atmosphere.e) Install the equipment in a location that can sufficiently support the weight of the equipment.f) If a unit is installed into a special environment as shown below, there will be a danger that the corrosion of the outdoor unit or its
malfunctioning is caused. If this is the case, please consult with the distributor from whom you have purchased the unit.・Where corrosive gas is generated (such as a hot-spring resort area).・Where the unit is subject to sea breezes (coastal area).・Where the unit is subject to oil mists.・Where equipment generating electromagnetic waves exists in the vicinity.
g) When strong winds occur ● Where it is likely that the unit is subjected to strong winds, provide wind guards according to the following guidelines. Strong winds can cause performance degradation, an accidental stop due to a rise of high pressure and a broken fan.
CAUTION
Please leave sufficient clearancearound the unit without fail.Otherwise, a risk of compressorand/or electric component failuremay arise.
O v e r 5 0 0 m m Fasten with anchor bolts
①Place the unit outlet pipe perpendicular
to the wind direction.
②Please install so the direction of the air from the blowing
outlet will be perpendicular to the direction of the wind.③When the foundation is not level, use wires
to tie down the unit.
When installing units sideby side, install the fexfow adaptor. (This is notrequired i a distance o1,500 mm may besecured between theblowing outlet and thewall.)
Wind direction
Wind direction
Combination pattern●Combination pattern of outdoor units, number of indoor units connected and capacity of connection are as show in the table at right.
●It can be used in combination with the following indoor unit.
Indoor unit Remote controller Connection OK/NO
FD○△△KXE6 RC-E4(2 cores) OK
FD○A△△KXE4 RC-E1R(3 cores) OK
Capacity
224
280
335
Combination pattern
Single
Single
Single
Number of units connected (unit)
1∼15
1∼19
1∼22
Range of total capacity of connected indoor units
112∼336
140∼420
167∼502
Outdoor unit Indoor unit
CautionIf superlink I (previous superlink) is selected, all the range of usage and limitations, not only the limitations of connectable indoor capacity and connectablenumber of indoor unit but also of the piping length, operating temperature range and etc., become same as those of KX4 (See technical) manual ´07 . KX . KXR-T-114). In addition to above limitations, all of new functions for KX6 such as automatic address setting function for multiple refrigerant systems and etc.wll be cancelled.
● The protrusion of an anchor bolt on the front side must bekept within 15 mm.
● Securely install the unit so that it does not fall over duringearthquakes or strong winds, etc.
● Refer to the above illustrations for information regardingconcrete foundations.
● Install the unit in a level area. (With a gradient of 5 mm orless.)
Improper installation can result in a compressor failure, brokenpiping within the unit and abnormal noise generation.
Wooden base
Wear plate
3-1. Delivery
●Deliver the unit in the packing to the specified installation place.
●To hoist the unit, attach a pair of textile ropes with cushion materials attached to protect it.
Request
Put cushion materials between the unit and the ropes to avoid damages.
Attach the ropes on the unit and carry it in avoiding displacement of gravity center.Improper slinging may cause the unit to lose balance and fall.
4. REFRIGERANT PIPING
3. Unit delivery and installation
(1) Limitation on use o pipes
Caution
●When arranging pipes, observe the restrictions on use concerning the longest distance of (1), total piping length,
allowable pipe length from initial branching and allowable difference of height (difference between heads).
● Avoid any trap ( ) or bump ( ) in piping as they can cause fuid stagnation.●Maximum length (To the urthest indoor unit) … Actual length Less than 160 m (Actual length less
than 185 m)It is required to change the pipe diameter when the actual length exceeds 90 m.Determine the size o main pipe, reerring to the table o main pipe selection table o (3) (a).
●Total piping length ………………………………………………………… 510 m or less
●Length o main pipe ……………………………………………………… 130 m or less● Allowable pipe length rom initial branching …………………………… 90 m or less
Dierence in pipe lengths between indoor units, however, is 40 m or less.● Allowable dierence in height (Dierence o heads)
(a) When an indoor unit is positioned at a higher place ……………… 50 m or less(b) When an outdoor unit is positioned at a lower place ……………… 40 m or less(c) Dierence o heights between indoor units in a system …………… 18 m or less(d) Dierence o heights between initial branching and indoor unit … 18 m or less
(2) Selection o pipe material●Use pipes with the inside clean and ree rom any harmul sulur, oxides, dirt, chips & oil, or moisture
(contamination).●Use ollowing rerigerant pipes.
Material … Phosphate deoxidation treated seamless pipe (C1220T-O, 1/2H, JIS H3300)C1220T-1/2H or O.D. ø19.05 or more, or C1220T-O or ø15.8 or less
●Wall thickness and size - Select according to the guide or pipe size selection(This product uses R410A. Since, in case o pipes in the size o ø19.05 or more, materials o -Olacks sucient capacity to withstand pressure, make sure to use pipes o 1/2H material and
thickness larger than the minimum thickness.)●When a pipe is branched, make sure to use our branching set or header set.●When setting branching pipes, take care o the mounting direction and consult careully with the
instruction manual.●Regarding the handling o operation valve, reer to 4-3 (1) Operating method o operation valve.
●Make sure to lock the fixing legs of outdoor unit with 4 pieces of anchor bolt (M10). Best margin of protrusion for bolt above thefloor is 20 mm.
● When installing the unit, make sure to lock its legs with the following bolts.
3-2. Cautions for installation
CAUTION
Make sure to install within the range of limitation. Otherwise, resultingmalfunction of compressor may not be warranted. Observe always thelimitation of use during installation.
4-1. Determination of piping specifications (Please select from the following matrix according to indoor unit specifications and installation site conditions)
Lock with bolt (M10-12)
Suction Blowout
Use a long block to extend the width.Use a thicker
block to anchor
deeper.
SampleSize
L1
L2
L3
L4
Ⅰ
Open
300
300
250 (5)
Ⅱ
Open
5
300
250 (5)
Ⅲ
1500 (500)
Open
300
250 (5)
Airinlet
Airinlet
Air
outlet
Service
space
L3
L2
L4
L1
(Unit : mm)a) Minimum installation space(Please select an installation point with due attention to the direction of installation of the refrigerant pipe )(If the installation conditions shown in this drawing are not satisfied, please consult with your dealeror the manufacturer.)
b) When units are installed side by side, leave a 10 mm or wider service space between the units .c) Don’t install at a place where it will be surrounded with walls in four directions.
Even when it is not surrounded with walls in four directions and it is met the installation conditions
as shown by this figure, if there is risk of short-circuit, install the flex flow adaptor to prevent theshort-circuit.d) There must be a 1-meter or larger space in the above.e) A barrier wall placed in front of the exhaust diffuser must not be higher than the unit.
2-2. Installation space (Ex. servicing space)
Important
In case that the unit operates in cooling mode, when the outdoor temperature is –5°C or lower,
please equip a flex flow adapter and a snow guard hood (option) on the unit.
Figure in ( ) shows the value applicable when the fex fowadaptor is installed.
*1
*1
Under the setting condition as specied in ( ) , it is necessary tosecured 250 mm or the dimension L4 when replacing the compressor.Establish this or example by moving the unit during the work.
(1) Check operationThe following ① – ③ can be checked automatically with this operation.
① Checking of operation valves opened/closed.
Checks to see if operation valves are opened.
② Checking of mismatch on wiring or piping.Checks to see if refrigerant piping or signal wiring between indoor and outdoor units in the same refrigerant system are
connected properly.
③ Checking of indoor expansion valve operation.
Checks to see if indoor expansion valve operates properly.
* Check operation should be performed before initial test run after completion of installation.
When any corrective measure for nonconformity has been taken, perform the check operation again after repair.
Operational condition
Temperature range: Outdoor air temperature … 0㨪 43℃, Indoor air temperature … 10 㨪 32℃.
Connecting capacity of indoor units: 80% or more of outdoor unit capacity.
Precautions
Check each outdoor unit system for single use or each refrigeration system for combination use.
Outdoor units in other refrigerant system shall not be operated.
After turning on power supply to outdoor unit and connected indoor units, start check operation with all connected indoor
units stopped.
In combination use, check the setting and the result displayed on the 7-segment display of master outdoor unit.
If the unit has been operating before check operation, wait for 5 minutes after stopping the unit operation before starting
check operation, in order to avoid misjudgment.
In combination use, judging operation valves opened or closed by check operation can be done as no good (NG), when
all of operation valves in liquid l ine, gas line and oil equalizing line of both master and slave outdoor units are closed.
However, in other cases than the above, judgment may not be done.
During check operation it is impossible to stop operation from remote controller. Accordingly, before starting check operation,
be sure to confirm that no one working near the indoor unit especially near the rotating part such as fan of indoor unit or
something is remaining near the fan of indoor unit.
Purpose
The purpose of this check operation is only to verify any overlooked items to be checked during the ordinary checking doneޓ
at the site after installation. Accordingly it has no function to substitute the ordinary checking to be done during or after installation
work and to restore automatically as a result of checking operation.
.Therefore be sure to conduct the checking in ordinary way after installation firstly, and then to perform this check operationޓ
We believe that this checking method could prevent from overlooking any items to be checked.
“H2 Max. remaining time” Remaining time: Max.remaining time for auto
checking.
In combination use, “H0---” isdisplayed on the slave outdoor unit.
End of auto
checking,
judgment
result
Record the indication of
7-segment indicator on
outdoor unit.
“CHO End” Result of check operation
is judged normal.
End the check operation.
“CHL---” Operation valve may be
closed.
Refer to “(5) Measures to be
taken after check operation”.
“CHU Anomalous indoor
unit No.”
Refrigerant piping or
signal wiring between
indoor and outdoor units
may not be connectedcorrectly.
“CHJ Anomalous indoor
unit No.”
Indoor expansion valve
may not be operating
properly.
“CHE---” Check operation has not
ended properly.
All judgment resul ts at
the end are displayed.
Other display
Check ofnonconforming
item
Check for anomalous conditionas per “(5) Measures to be
taken after check operation”
When any display other than“CHO-End” is displayed
after auto checking.
Refer to “(5) Measures to betaken after check operation”.
End of check
operation
Turn off “Chek operation
run switch (SW3-5)” on
outdoor control PCB.
Returns to normal display.
Notes (1) When “HO-HE” is displayed for more than 10 minutes, or any displays other than “CHO-End” is displayed at the end of cheek
operation, turn SW3-5 to OFF and take necessary measures.
And then turn SW3-5 to ON again and perform the check operation.
(2) During check operation it is impossible to stop operation from remote controller. Accordingly, before starting check operation, be
sure to confirm that no one working near the indoor unit especially near the rotating part such as fan of indoor unit or something isremaining near the fan of indoor unit.
When interrupting check operation, turu SW3-5 to OFF, Compressor stops and 7-segment display returns to normal display.
(5) Measures to be taken after check operationWhen any display other than “CHO-End” is displayed after completing the judgment of check operation, the meanings of each display
are shown as follows.
After checking the contents of inspection and repairing nonconforming items, perform check operation again.
Code
display
Data
display
Meaning of display Contents of Inspection
CHL --- Refrigerant circuit is choked at certain
place.
Operation valve on outdoor unit may be left closed.
Low pressure sensor may be anomalous.
Check the detected pressure displayed on 7-segment and compare it with the
value measured with gauge manifold.
Refrigerant piping or signal wiring may not be connected properly. *1 (See page
271.) Check with Mente PC, etc.
Indoor heat exchanger temperature thermistor may be anomalous or disconnected.
*2 (See page 271.)
Refrigerant may not be charged correctly.
Indoor unit expansion valve may not be operating properly.
Connector of indoor unit expansion valve coil may not be connected. *3 (See page271.)
Indoor unit expansion valve coil may be disconnected from main body of expansion
valve. *4 (See page 271.)
Outdoor unit PCB may be defective.
CHU Anomalous
indoor unit
No.
Refrigerant is not circulated in the
indoor unit of indicated No.
Refrigerant piping or signal cables may not be connected properly between indoor
and outdoor units. *1 (See page 271.) Check with Mente PC, etc.
Indoor heat exchanger temperature thermistor may be anomalous or disconnected.
*2 (See page 271.)
Operation valve on outdoor unit may be left closed.
Check it especially when many indoor units No. are displayed in data display column of CHU.
it may be displayed by influence of liquid flooding due to the trouble on any otherindoor unit. If CHJ is displayed at the same time, check preferentially the indoor
unit displaying CHJ and after repairing, perform check operation again.
Refrigerant may not be charged correctly.
Indoor unit expansion valve may not be operating properly.
Connector of indoor unit expansion valve coil may not be connected. *3 (See page
271.)
Indoor unit expansion valve coil may be disconnected from main body of expansion
valve. *4 (See page 271.)
CHJ Anomalous
indoor unit
No.
Expansion valve on the indoor unit
of indicated No. does not operate
properly.
Indoor heat exchanger temperature thermistor may be anomalous or disconnected.
*2 (See page 271.)
it may be displayed by influence of liquid flooding due to the trouble on any otherindoor unit.
Contamination may be trapped in expansion valve due to installation or transitional cause.
Indoor unit expansion valve may not be operating properly.
Connector of indoor unit expansion valve coil may not be connected. *3 (See page
271.)
Indoor unit expansion valve coil may be disconnected from main body of expansion
valve. *4 (See page 271.)
Refrigerant may not be charged correctly.
CH1 --- Indoor heat exchanger temperature
anomaly.
Indoor heat exchanger temperature thermistor may be anomalous or disconnected.
*2 (See page 271.)
CH3 --- Unable to do indoor EEV trouble check. Unable to do indoor EEV trouble check because of unstable operation.
CHH --- It may be liquid flooding. Refrigerant piping or signal cables may not be connected properly between indoor
and outdoor units. *1 (See next page.)
Power switch may be turned off on some indoor units.
Check if power is supplied to all indoor units.Indoor unit expansion valve may not be operating properly.
Connector of indoor unit expansion valve coil may not be connected. *3 (See next
page)
Indoor unit expansion valve coil may be disconnected from main body of expansion
valve. *4 (See next page.)
If no indoor unit indicates CHJ, check also indoor units which are not showing CHJ.
Refrigerant may not be charged correctly.
CHE --- Anomalous stop of check operation. Some error may happen on indoor or outdoor units.
Check if any error code “E??” is displayed on indoor or outdoor units.
There may be anomalous on signal wire connection.
Check if signal wire is connected firmly.
SW setting on outdoor PCB might have been changed.
Check if any SW setting has been changed during check operation.
CHE Anomalous
indoor unit
No.
Anomalous stop of check operation.
Indoor unit indicated its No. has
anomaly.
Some error may happen on indoor or outdoor units.
Check if any error code “E??” is displayed on indoor or outdoor units.
There may be anomalous on signal wire connection.
Check if signal wire is connected firmly.
Power switch may be turned off on some indoor units.
Check if power is supplied to indoor units.
E 40 High pressure anomaly. Refrigerant circuit may be choked at a certain place. Refer to the technical manual
or the above.
E 42 Current cut. Refrigerant circuit may be choked at a certain place. Refer to the technical manual
or the above.
It might have been started operation while bottom of compressor was still cold.
Perform check operation again after the bottom of compressor has been enough
warm.
E 49 Low pressure anomaly. Refrigerant circuit may be choked at a certain place. Refer to the technical manual
or the above.
E 36-3 Liquid flooding anomaly. It may be in the same condition as “CHH---”. Refer to the technical manual or the
above.
Note (1) When an error code (E??) is displayed, press SW9 to display all indicalions other than the error code in series.
Press SW9 again to return to error display.
(2) When check operation has been suspended, the followings listed in below table are displayed depending on judgment at
the time of stoppage.
Code display Data display Contents of display
HL --- Refrigerant circuit is choked at a certain place.
HL LPL Refrigerant circuit is choked at a certain place. (In combination use)
HU Anomalous indoor unit No. Refrigerant is not circulated in the indoor unit of indicated No.
HJ Anomalous indoor unit No. Expansion valve does not operate on the indoor unit of indicated No.
UU Anomalous indoor unit No. Refrigerant is not circulated in the indoor unit of indicated No.
U Anomalous indoor unit No. Refrigerant was not circulated in the indoor unit of indicated No. just after starting but it
has been confirmed that it is now circulated.
(3) If refrigerant circuit is choked at a certain place, it may be stopped with error code E40 (High pressure anomaly), E42
(Current cut) or E49 (Low pressure anomaly).(4) When it has stopped with error code E36-3 (Liquid flooding anomaly), it may be in the same condition as “CHH---”.
(5) When it has stopped with error code E42 (Current cut), it might have been started operation while bottom of compressor
was still cold. Perform check operation again after the bottom of compressor has been enough warm.
f Fasten the wiring to the terminal securely and hold the cable securely so as not to apply unexpectedstress on the terminal.Loose connection or hold will cause abnormal heat generation or fire.
f Make sure the power supply is turned off when electric wiring work.Otherwise, electric shock, malfunction and improper running may occur.
CAUTION
f DO NOT install the wireless kit at the following places in order to avoid malfunction.
(1) Places exposed to direct sunlight(2) Places near heat devices(3) High humidity places
(4) Hot surface or cold surface enough to gen-erate condensation
(5) Places exposed to oil mist or steam directly(6) Uneven surface(7) Places affected by the direct airflow of the
AC unit.
(8) Places where the receiver is influenced bythe fluorescent lamp (especially invertertype) or sunlight.
(9) Places where the receiver is affected byinfrared rays of any other communicationdevices
(10) Places where some object may obstruct thecommunication with the remote controller
f DO NOT leave the wireless kit without the cover.In case the cover needs to be detached, protect the receiver with a packaging box or bag in orderto keep it away from water and dust.
Note
f Instruct the customer how to operate it correctly referring to the instruction manual.
f For the installation method of the air conditioner itself, refer to the installation manual enclosed in the package.
(a) FDT Series (RCN-T-36W-E)The FDT series is an exclusive series with all wired models. However, these models can also be used wireless units by using the op-
tional wireless kit.
(1) Wireless kit model
(2) Accessories
Please make sure that you have all of the following accessories.
(3) How to install the receiver
The receiver can be installed by replacing with a corner panel on the applicable decorative panel.
Preparation before installation
① Attach the decorative panel onto the air conditioner according to the installation manual for the panel.
② Remove the air return grille.
③ Remove a corner panel located on the refrigerant pipes side.
④ Remove three screws and detach the cover (indicated as shadowed area) from the control box of the air conditioner.
Setting on site
① PCB on the receiver has the following switches to set the functions. Default setting is shown with mark.
Receiver
Parts set
Wirelessremotecontroller
Remote controller holder
AAA dry cell battery(RO3)
Wood screw for holder
Refrigerant pipes Drain pipe
Model
RCN-T-36W-E
Normal
Remote
Master
Slave
Valid
Invalid
Valid
Invalid
Customized signal setting to avoidmixed communication
Even when the operation from the wireless remote controller is not possible
(due to flat batteries, controller lost, or controller failure), still it possible to
operate as temporary means. Press the button directly when operating it.
(a) The air conditioner starts the operation with the condition of Auto
mode, 23˚C of set point, High fan speed and horizontal louver position.
(b) The air conditioner stops the operation when the button is pressed when
in operation.
(7) Cooling test run operation
f After safety confirmation, turn on the power.
f Transmit a cooling operation command with wireless remote controller, while the backup button on the receiver is pressed.
f If the backup button on the receiver is pressed during a test run, it will end the test run.
f If you cannot operate the unit properly during a test run, please check by consulting with inspection guides on the wiring
diagram of outdoor units.
(8) How to read the two-digit display
On the receiver of a wireless kit, a two-digit (7-segment) display is provided.
(a) An indication will be displayed for one hour after power on.
(b) An indication will be displayed for 3.5 seconds after transmitting a “STOP” command from the wireless remote controller
or the operation of the backup button to stop the unit.(c) An indication appearing in (a) or (b) above will go off as soon as the unit starts operation.
(d) When there are no error records to indicate, addresses of all the connected units are displayed.
(e) When there are some error records remaining, the error records are displayed.
(f) Error records can be cleared by transmitting a “STOP” command from the wireless remote controller, while the backup
(b) FDTC Series (RCN-TC-24W-ER)The FDTC series is an exclusive series with all wired models. However, these models can also be used wireless units by using the
optional wireless kit.
(1) Wireless kit model
(2) Accessories
Please make sure that you have all of the following accessories.
(3) How to install the receiver
The receiver can be installed by replacing with a corner panel on the applicable decorative panel.
Preparation before installation
① Attach the decorative panel onto the air conditioner according to the installation manual for the panel.
② Remove the air return grille.
③ Remove a corner panel located on the refrigerant pipes side.
④ Remove to screws and detach the lid from the control box of the air conditioner.
The control assy (Receiver and Interface PCB assy) can be installed inside the indoor unit.After turning off the power and confirming safety, execute as follows.
Remove Inlet panel
a) Pull the inlet panel towards you at the upper side of bothsides, and detach the latches.b) Remove the retainer string from the front panel.c) Remove the inlet panel.
1
Remove Front panela) Remove the fixing screw. (5 pieces)b) Detach the latches at the upper side of the front panel. (3 places)
If difficult to remove the latch, detach the latch portion by usingstraight screw driver, for example.
c) Move the lower part of the front panel towards you.d) Detach the latches at the lower side of the front panel. (6 places)
2
Put back Front panela) Place the front panel over the indoor unit.b) Hang the latches on the lower side of the front panel. (6 places)c) Hang the latches on the upper side of the front panel. (3 places)d) Tighten the fixing screw. (5 pieces)
5
Put back Inlet panela) Put the lower side of the inlet panel on the front panel.b) Hang the retainer string on the claw of the front panel.c) Snap the latch of the inlet panel upper side into the front panel.
6
3
Install Control assya) Fix the receiver on the indoor unit, by the attached screw.
(2 pieces, refer to figure 1)Make sure that the claw of the receiver hungs on the clawof the indoor unit control box. (Refer to figure 2)
b) Put the interface PCB assy on the indoor unit control box.Put the interface PCB assy securely in the innermostlocation, when installing the front panel. (Refer to figure 3)
c) Fix the wiring on indoor unit control box by the clips.(3 places, refer to figure 4)
d) Fix the terminal of the wiring assy (for X, Y) on the lowerside terminal block of the indoor unit. (Non-polarity)
4
CAUTIONWhen removing the inletpanel, be careful not todrop it on your feet.
CAUTION DO NOT install it in the following places.
1. Places exposed to direct sunlight
3. Places near heat devices
5. High humidity places
Detach the back lid.
Insert the batteries.
(two AAA batteries)
Reattach the back lid.
Wood screw
2. Hot surface or cold surface enough to generate condensation
4. Places directly exposed to oil mist or steam
6. Uneven surface
Installation tips for the remote controller holder How to insert batteries
• Adjust and keep the holderup right.
• Tighten the screw to the endto avoid scratching theremote controller.
• DO NOT attach the holderon plaster wall.
How to install the wireless remote controller4
1
2
3
Latch
Latch
Pull
Clip
Screw
Claw
Remove Display label and stick on Display labela) Peel off the original display label, on the upper side. (★ Mark)
Press the back side of label, then the label floats.
b) Stick the attached display label on the same location.CAUTION MUST change the display label.If the display label is not changed, the receiver can not receive the signal from the remote controller.
(f) Except for FDT, FDTC, FDK, FDE & FDFW Series (RCN-KIT3-E)This product is dedicated for heat pump unit. Never install on the unit dedicated for cooling.
(1) Wireless kit model
(2) Accessories (Confirm the following accessories).
(3) Wireless remote controller’s operable area
(a) When installed on ceiling
① Standard reachable area of the signal
[Condition] Illuminance at the receiver : 300lux (when no lighting is installed within 1m of the receiver in an ordi-
nary of fice.)
1
1
1
1
111
2
31
2
3
4
1
2
3
2
3
4
5
6
7
2
2
15
5
1
2 2
2
1
1
1
Light detectionadaptor
Wiring (3m)
Parts set (A)
Parts set (B)
Parts set (C)
Wireless remotecontroller
User’s manual
Screw for receiver
Remote controller holder
Screw for holder
AAA dry cell battery (R03)
Fixing band
Clamp
Screw for clamp
Receiver installation bracket
Screw for the bracket
Installation fitting
Model
RCN-KIT3-E
Receiver
Orientation of receiver Ceiling surface
Floor
Floor
Receivable areaof the signal
Orientation of receiver Ceiling surface
Receivable areaof the signal
22°
29°
1 . 4 m
2 . 4 m
1 m
1 . 4 m
2 . 4 m
1 m
② Correlation between illuminance at the receiver and reachable area of the signal in a plain view.
[Condition] Correlation between the reachable area of the signal and illuminance at the receiver when the remote
controller is operated at 1.1m high under the condition of ceiling height of 2.5m.
When the illuminance becomes double, the area is narrowed down to two third.
(b) When installed on wall
[Condition] Illuminance at the receiver : 800lux.
The receivable area of the signal whenthe illuminance at the receiver is 300lux.
The receivable area of the signal whenthe illuminance at the receiver is 600lux.
[In the case of selecting the indoor unit function (07-14)]
① “88” blinks on the temperature setting indicators.
(blinking for approximately 2 to 10 seconds while data is read)
↓
After that, the current setting number of the selected function number blinks.
(Example)
Function number: “07” (lighting)
Setting number: “01” (blinking)
Proceed to ② .
[Note]
a. In the case of connecting one remote control to plural i ndoor units, the display
will be as follows:
Indoor unit No. display: “U 000” (blinking)
(Display the lowest number among the connected indoor units.)
b. Press TEMP△ or TEMP▽ button.
Select the indoor unit No. to be set.
If “U ALL” is selected, the same setting can be set to all units.
c. Press MODE button.
Decide the indoor unit No.
“88” blinks on the temperature setting indicators. (blinking for 2 to 10 seconds while data
is read)
When AIR CON NO. button is pressed, go back to the indoor unit selection display (for
example, “U 000” blinking).
② Press TEMP△ or TEMP▽ button.
Select the setting number
③ Press MODE button.
The setting is completed.
Light is on for approximately 3 to 20 seconds while data of the decided function No. and
setting No. is transmitted.
(Example)
Indoor unit No.: “U 000” (lighting for 3 to 20 seconds)
Function number: “07” (lighting for 3 to 20 seconds)
Setting number: “01” (lighting for 3 to 20 seconds)
Then, the screen goes back to the function number blinking indication ⑴ , if the setting
is sequentially conducted, continue with the same procedures. If the setting is finished,
proceed to ⑸ .
⑴ Stop air-conditioning, and simultaneously press AIR CON NO. and MODE buttons
at the same time for over three seconds.
The function number “01” blinks in the upper right.
⑵ Press TEMP△ or TEMP▽ button.
Select the function number.
⑶ Press MODE button.
Decide the function number.
⑷ [In the case of selecting the remote controller function (01-06)]
① The current setting number of the selected function number blinks
(Example)
Function number: “01” (lighting)
Setting number: “01” (blinking)
② Press TEMP△ or TEMP▽ button.
Select the setting number.
③ Press MODE button.
The setting is completed.
Light is on for approximately 3 to 20 seconds while data of the
decided function No. and setting No. is transmitted.
(Example)
Function number: “01” (lighting for 3 to 20 seconds)
Setting number: “01” (lighting for 3 to 20 seconds)
Then, the screen goes back to the function number blinking
indication ⑴ , if the setting is s equentially conducted, continue
with the same procedures. If the setting is finished, proceed to ⑸ .
⑸ Press ON/OFF button.
The setting is completed.
Function number
Function number
Setting number
Function number
Setting number
Function number
Setting number
Function numberIndoor unit No.
Indoor unit No.(In the case ofconnectingplural indoorunits)
Function number
Setting number
・Even if ON/OFF button is pressed during setting, the setting is ended. However, any details where the setting has not been completed will be ineffective.
・The setting contents are stored in the controller, and even if the power failure occur, this will not be lost.
[Confirmation method for current setting]
According to the operation, the “setting number” displayed first after selecting “function number” and pressing MODE button is the currently set content.
(However, in the case of selecting “U ALL” (all units), the setting number of the lowest number among the indoor units is displayed.)