Haier air conditioner Edition: 1.0-070801 - 1 - Domestic Air conditioner CAUTION READ THIS MANUAL CAREFULLY TO DIAGNOSE TROUBLE CORRECTLY BEFORE OFFERING SERVICE. THIS MANUAL IS USED BY QUALIFIED APPLIANCE TECHNICIANS ONLY. HAIER DOES NOT ASSUME ANY RESPONSIBILITY FOR PROPERTY DAMAGE OR PERSONAL INJURY FOR IMPROPER SERVICE PROCEDURES DONE BY ONE UNQUALIFIED PERSON. HSU-09HC03/R2(DB) HSU-12HC03/R2(DB) HSU-18HC03/R2(DB) HSU-22HC03/R2(DB)
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1. General information This Service Manual describes the operation, disassembly, troubleshooting, and repair of Haier Room Air Conditioners, etc. It is intended for use by authorized services that troubleshoot and repair these units. It is assumed that users of this manual are familiar with the use of tools and equipment used to troubleshoot and repair electrical, mechanical, and refrigeration systems; and understand the terminology used to describe and discuss them. Haier urges you read and follow all safety precautions and warnings contained in this manual. Failure to comply with safety information may result in severe personal injury or death.
Related Publications
This is a base service manual, covering a range of similar models. It is intended to be used in conjunction with the Parts Manual and Technical Sheet covering specific model being serviced.
NOTE: General Precautions and Warnings
WARNING
To avoid risk of personal injury or death due to electrical shock, disconnect electrical power to unit before attempting to service the unit.
WARNING
To avoid risk of personal injury or death due to electrical shock, DO NOT, under any circumstances, alter the grounding plug .Air conditioner must be grounded at all times. Do not remove warning tag from power cord. If a two-prong (non-grounding) wall receptacle is encountered, contact a qualified electrician and have the receptacle replaced with a properly grounder wall receptacle in accordance with the National Electrical Code.
WARNING
To avoid risk of heat exposure, which may cause death or severe illness, air conditioner must be monitored when malfunctions or shuts down.
WARNING
To avoid risk of personal injury or death due to electrical shock, grounding wires and wires colored like grounding wires are NOT to be used as current carrying conductors. The standard accepted color coding for ground wires is green or green with a yellow stripe. Electrical components such as the compressor and fan motor are grounded through an individual wire attached to the electrical component and to another part of the air conditioner. Grounding wires should not to be removed from individual components while servicing, unless the component is to be removed and replaced. It is extremely important to replace all removed grounding wires before completing service.
Product Features Photo catalyst Healthy negative ion Left &right airflow Bacteria-killing medium Intelligent airflow Entire auto mode
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2. Specification Item Unit HSU-09HC03/R2(DB) HSU-12HC03/R2(DB)
Power PH, V, Hz 1 230 50 1 230 50Climate Type T1 T1
Cooling Capacity (W) 2600W 3500W Rated Power (W) 680W 1000W Rated Current (A) 3.0A 4.9A Max Power (W) 1150W 1550W Max Current (A) 4.2A 7.0A
Cooling
EER (W/W) 3.82 3.50 Heating Capacity(W) 3400W 4200W Rated Power (W) 930W 1250W Rated Current (A) 4.2A 5.6A Max Power (W) 1350W 1520W Max Current (A) 4.5A 6.9A
Heating
COP (W/W) 3.66 3.36 Starting Current (A) 4.0 Operating temp. range (A) 16~43 16~43Class of electric Shock Protection I I Class of Water Proof IP24 IP24 Remote Controller Model YR-H79 YR-H79 Moisture Removal (10-3m3/h) 1.2x10-3 1.5x10-3 Max. pressure at warm side (Mpa) 4.15 4.15
Length (mm) 580±5 580±5 Drain Hose
Diameter (mm) 25.5±2 25.5±2H (rpm) 1150 1250 M (rpm) 1050 1150 Indoor fan Velocity L (rpm) 950 1000
Outdoor fan Velocity H (rpm) 800 800
Air Volume (High) Indoor(m3)
490 600
Manufacture TOSHIBA TOSHIBA Type DA89X1C-20FZ DA108X1C-20FZ3
Compressor Compressor Oil Charge (ml)
370cc 480cc
Type R410A R410A Net Charge (g) 960 1140
Refrigerant Charge if over standard pipe length
20g/m 20g/m
Liquid pipe Diameter (mm)
6.35 6.35 Refrigerant Pipe
Gas pipe Diameter (mm)
9.52 9.52
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Standard length (m) 4m 4m Max length (m) 15m 15m Indoor (H/M/L) (dBA) 44/41/38 45/42/39
Noise Level Outdoor (dBA) 54 52
Net (kg) 8.8 10.6 Indoor
Gross (kg) 10.6 12.6 Net (kg) 34 37.5 Weight
Outdoor Gross (kg)
37 40.5
Net (mm) 795*265*182 938*265*182 Indoor Package
(mm)863*330*275 1013*330*275
Net (mm) 783*543*255 783*643*255 Dimension
Outdoor Package(mm)
930*614*340 930*714*340
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Item Unit HSU-18HC03/R2(DB) HSU-22HC03/R2(DB)
Power PH, V, Hz 1 230 50 1 230 50Climate Type T1 T1
Cooling Capacity (W) 5000W 6000W Rated Power (W) 1700W 2040W Rated Current (A) 7.5A 9.2A Max Power (W) 2000W 2500W Max Current (A) 9.5A 11.5A
Cooling
EER (W/W) 3.94 2.94 Heating Capacity(W) 5600W 6600W Rated Power (W) 1830W 2160W Rated Current (A) 8.0A 9.7A Max Power (W) 2200W 2750W Max Current (A) 9.5A 12.5A
Heating
COP (W/W) 3.06 3.06 Starting Current (A) 7.5 Operating temp. range (A) 16~43 16~43Class of electric Shock Protection I I Class of Water Proof IP24 IP24 Remote Controller Model YR-H79 YR-H79 Moisture Removal (10-3m3/h) 2.0x10-3 2.5x10-3 Max. pressure at warm side (Mpa) 4.15 4.15
Length (mm) 580±5 580±5 Drain Hose
Diameter (mm) 25.5±2 25.5±2H (rpm) 1350 1350 M (rpm) 1150 1150 Indoor fan Velocity L (rpm) 1000 950
Outdoor fan Velocity H (rpm) 830 830
Air Volume (High) Indoor(m3)
670 700
Manufacture PANASONIC PANASONIC Type 5CS130XCC03 5CS160XAA23
Compressor Compressor Oil Charge (ml)
480cc 600cc
Type R410A R410A Net Charge (g) 900 1900
Refrigerant Charge if over standard pipe length
20g/m 20g/m
Liquid pipe Diameter (mm)
6.35 6.35
Gas pipe Diameter (mm)
12.7 12.7
Refrigerant Pipe
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Standard length (m) 4m 4m Max length (m) 15m 15m Indoor (H/M/L) (dBA) 46/43/41 48/45/42
Noise Level Outdoor (dBA) 57 58
Net (kg) 17 17 Indoor
Gross (kg) 20 20 Net (kg) 43 54.5 Weight
Outdoor Gross (kg)
48 58.5
Net (mm) 938*265*182 1155*308*224 Indoor Package
(mm)1013*333*275 1225*310*371
Net (mm) 820*310*682 865*335*732 Dimension
Outdoor Package(mm)
949×406×745 995*420*815
3. Electrical control
. Application Range This specification use for HSU-09/12/18/22HC03/R2 DB frequency conversion air condition are manufactured by Haier air condition parent company. "Setting value" (express in parameter) in this specification means is a parameter that is stored in EEPROM. Refer to [EEPROM parameter table].
Indoor Unit
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Temperature Adjusting function 2.1This function will decide the outdoor unit’s running speed according to the indoor temperature and the set temperature. Control the indoor blower fan according to the need for temperature adjusting when the wind rate is automatic.Control the indoor blower fan according to the disc-tube temperature when it’s running for heating.
2.1.1 Indoor environment temperature sensor specification Under the conditions of short circuit or open circuit, the indicative light will flash an alarm and the indoor blower fan stops. When it returns to normal conditions, the operation will come back to normal.
Short circuit Temperature: over 126 . Sixteen scales: over F8H. Resistance value: below 0.65 K.
Normal temperature Temperature: 25 . Sixteen scale: 40H Resistance value: 23K.
DisconnectionTemperature: below minus 31 . Sixteen scale: below 08H. Resistance value: below 620K. Voltage: below 0.15 V B index=4200 R (25 ) =23K
2.1.2 The specification of indoor environment pipe temperature sensor
2.1.3 During the time when the heat running starts and indoor blower fan stops or when the warm boot starts and within 30 seconds after the indoor blower fan starts, the resistance value for indoor environment temperature sensor will be neglected.
2.2 The frequency kept when the frequency rises.
When the operation enters into the work mode, in order to insure the full oil-returning, some frequency should be kept for some time.
Indication time Indication frequency
Cooling & moisture removing
Heating Heating & Frost removing
Frequency kept
60 seconds 60 seconds 30 seconds 58 Hz
When the unit is switched on and the forcible running is over, the temperature level control starts.
2.3 Modify the set temperature
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The set temperature can be modified according to the unit’s operation mode, wind volume or whether it is under forceful running condition.
The modification of wind volume is only limited within the switch between weak and medium of wind volume when it is under heating mode.
Modification index table for set temperature
Mode Content of modification Modified variable Modified parameter
2.4.1 Deviation Work out the deviation of temperature level as follows:
In heating mode: E = (Remote-control set temperature+ modified value)-room temperature
In cooling & moisture removing mode: E = room temperature -(Remote-control set temperature + modified value)
2.4.2 Compressor OFF E is minus and |E|> T
Heating Cooling
T TCHAHL 0.67 TCHACL 0.33 After T changes TCHAHH 0.67 TCHACH 1 condition for Tchanges
E 3.0 when operation starts
The compressor stops after 120 seconds of continuous detection
When the operation starts, according to the table above, the unit will operate according to the after-the- T-change parameters before the compressor stops for the first time.
From the time the compressor stops to the time it starts again, the operation will follow the T (except the moisture removing mode)
When the operation starts and the operation modes change (except when the idle mode is over) and
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the deviation is bigger than – T, the compressor starts.
When the compressor is working and the remote-controller set temperature falls below – T, the compressor stops.
2.4.3 Compressor operation When the compressor is kept idle for 3 minutes, the deviation E will be higher than - T+0.67 and the compressor will start working. 2.4.4 DASH operation When the operation starts or the operation mode changes (except when the compressor is switched on after being off), the compressor is on and the indicated maximum frequency should be as follows: Cooling deviation to zero Moisture removing deviation to level G Heating deviation to level F There will be no DASH operation under trial operation, emergency operation and silent operation modes.
2.4.5 Temperature adjusting of different levels. (DASH operation conditions under different modes) cooling/ moisture removing /heating /level / cooling / moisture removing /heating /Value E/<120 seconds/ 3-minute idle mode /compressor restart
2.4.6 Frequencies for different levels Within different levels, the indicated frequencies are(the frequency the indoor unit transmits to the outdoor unit) as follows
Under the cooling & moisture-removing mode, level A and B have the same frequency. Under the silent mode, levels A-E have the same frequency with level F
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Indicated frequency Frequency range
Temperature change level
Heating FQHOT [0—7] 36-80Hz A—H Silentheating
FQSHOT [0—2] 36-72Hz F—H
Moistureremoving
FQDRY [0—7] 36-80Hz B—H
Cooling FQCOOL [0—7] 36-80Hz B—H Silentcooling
FQSCOOL [0—2] 36-64Hz F—H
The maximum frequency value refers to the max value listed above. The maximum and minimum values for cooling and heating are the maximum and minimum values for correspondent items.
2.4.7 Controlled frequency for the same level The indicated frequency when a level remains unchanged after the compressor operates with the same frequency for 3 minutes.
The timing will start again when there is a different frequency input. If the temperature level remains unchanged for 3 minutes, the indicated frequency will change again (add FQUPH or FQUPL)
2.4.8 Select the wind volume when it is set automatic When the wind volume is automatic, it can be switched between strong, medium and weak according to the temperature adjusting levels. Wind volume under the automatic wind volume mode
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Temperature adjusting levels
A B C D E F G H I
Heating Strong Strong Strong Strong Strong Medium Weak Weak SLO
cooling Strong Strong Strong Medium Medium Weak Weak Weak
Moistureremoving
Strong Medium Medium Medium Weak Weak SLO SLO
2.5 Frost removing
Under the intensive-running protection mode, the protection control will be in priority The compressor does not stop Under heating operation mode, the outdoor unit sends a frost-removing signal (I21=10) and the indoor unit will start the frost-removing control until the outdoor unit transmits the signal to end the frost-removing. Then the indoor unit starts the heating operation, indication levels and wind volume control will operate following the heating temperature levels.
2.6 Wind volume limit
When the compressor is working and the max setting for indoor blower fan is medium or weak, the upper limit of indicated frequency is as follows: Frequency control form for wind volume
Limited frequency variables
Limited frequency
Medium wind volume FQLIMMD 80Hz Weak wind volume FQLIMLO 52Hz
Limited frequency for up/down health wind
FUPHEAL 40Hz
When judging the conditions for frequency limit under the heating mode, first judge if the unit has been set to weak wind volume or health wind modes. If it has been set to one or both of the modes, then follow the table below for the limit modification.
Outdoor temperature condition
Indicated frequency
011(Below 20 ) Limited frequency for weak or health wind
010(15-20 ) Limited frequency for weak or health wind +FUPHEA1
10
001(10-15 ) Limited frequency for weak or health wind+ FUPHEA2
15
000(below10 ) Normal frequency
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Indoor blower fan control
When the wind volume is manually medium, the running speed is (strong + weak)/2.
When it is automatically medium, the running speed is (strong automatic+ weak automatic)/2(not counted if it is not up to 10rpm)
3.1heat running
3.1.1 Warm boot When the heat running starts or the frost removing ends and the compressor starts again, in order to avoid cold wind, warm boot wind volume control should be done. Heat exchange temperature
To control the indoor blower fan as shown in the table above according to the heat exchange temperature
When the heat exchange temperature rises to the level between THHOT1 and THHOT2 and even after 4 minutes it cannot reach the level between THHOT2 and THHOT3, enter into the next level without referring to the heat exchange temperature.
The blower fan stops when the heat exchange temperature is below 25The blower fan is working slightly weak when the heat exchange temperature is above 25 and below 35
The blower fan is working weak if the he heat exchange temperature remains 35 for less than 4 minutes.
The blower fan works as set if the he heat exchange temperature remains 35 for more than 4 minutesThe blower fan works as set if the he heat exchange temperature remains above 37
slightlyweak
slightlyweak
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3.1.2 When the compressor stops and remains idle for 3 minutes 20 seconds after the compressor stops, the wind volume is weak (switching to SSLO in silent running mode) and then slightly weak. If the compressor stops when the heat running starts, the wind volume is weak
3.1.3 Restart of the compressor The wind volume is set by the remote-controller after the warm boot. .select the wind volume by the temperature in the automatic wind volume modeRefer to the temperature level control function
3.1.4 Frost-removing operation The blower stops after 20 seconds When receiving the I21=11 signal from the outdoor unit in the heat frost-removing mode, warm boot will be done according to the hear exchange sensor. The wind volume control is the same with 3.1.1 When the frost-removing process if over, if the compressor is on, the wind volume control will be warm-booted; if the compressor if switched off, the wind volume will be weak.
3.2 cooling running
The wind volume can be set to strong, medium and weak. Automatic wind volume function will decide the wind volume according to the temperature
3.3 Moisture removing running
3.3.1 Compressor off, idle mode for 3 minutes The blower fan stops as the compressor stops The operation is weak after 3 minutes’ idle mode After stand by for 3 minutes, the compressor is on.
3.3.2 Compressors on The compressor operates as the set wind volume when the wind volume is set to be strong, medium or weakThe wind volume is decided according to the temperature adjusting when the wind volume is set to be automatic.
Picture 3.4 Moisture removing running
Level H 3minutes idle mode Compressor OFF
Setting slightly weak OFF weak weak setting
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Powerful running
Powerful running for 15 minutes The running stops or ends the powerful running after 15 minutes The mode switch ends the powerful running Enter into the silent mode, normal running mode or timed switching on mode to end the powerful running When in automatic mode, there are powerful and silent functions for your choice. When the main unit is in cooling mode, it operates with powerful cooling or silent cooling. When the main unit is in heating mode, it operates with powerful heating or silent heating. When the main unit is in wind-sending mode, there are no powerful or silent modes.
4.1 Powerful heating Change the set temperature. With temperature adjusting function The wind volume is the automatic medium When in frost removing mode, the outdoor unit does not accept the communication signal for powerful running After 15 minutes of powerful running, the compressor can not be off within 10 minutes
4.2 Powerful cooling Change the set temperature. With temperature adjusting function The wind volume is the automatic strong After the compressor starts, there will be no low-intense running protection within 3 minutes
4.3 There is no powerful mode for wind-sending and moisture removing
Silent running Send the silent running signal to the outdoor unit
5.1 Silent hearing The wind volume is SSLO after the compressor is on The wind volume will be kept SSLO within 20 seconds after the compressor stops and then changes to weak
5.2 Silent cooling The wind volume is SSLO
5.3 There is no silent mode for moisture removing and wind-sending.
Air cleaning If the blower fan starts working after receiving the remote-control order, the aion generator starts working and sends out ions. The ion generator stops as the blower fan stops.
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When the ion generator is OFF and the air cleaning function is on, the blower fan starts running and the ion generator starts working again.
Timed running Set the time duration according to the time difference between the clock for timing and the current clockIn timing mode, the display panel will flash the light at fixed times
7.1 Timed OFF When this function is set, operation modes on the panel display will not change. The timing icon will show and the operation stops when the set time comes.
7.2 Timed ON When this function is on, the panel display will only display a question mark. The unit will operate as the set mode when the time comes.
7.3 Timed ON/OFF The unit will start operating or stop according to the order of your setting.
Sleeping Running 8.1When under the mode of cooling or moisture removing, the set temperature will rise by 1 after 1 hour and another 1 after the next hour. 6 more hours later the operation stops.
8.2Under the heating mode, the set temperature will fall by 2 every 1 hour within the first two hours. It will rise by 1 after another 3 hours and stop after running for 3 hours.
8.3If the indoor blower fan is set to be strong wind before setting the sleeping running, it will be medium wind after setting the sleeping running. If the indoor blower fan is set to be medium wind before setting the sleeping running, it will be weak wind after setting the sleeping running. If the indoor blower fan is set to be weak wind before setting the sleeping running, the running speed of the blower will not change.
Automatic running
9.1 Automatic running mode Under this mode, the MCU will choose the work mode according to the room temperature so as to keep the set temperature (set 23 for heating mode and 26 for cooling mode)
When the unit is powered on for the first time and the room temperature is equal to or below 23 , it
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will start the heating mode or the cooling mode when the room temperature is higher than 23
Enter into the heating mode and follow the heating process (supposed temperature 23 ). When the temperature is high enough to stop the compressor, the compressor stops and there will 3 minutes of idle mode. If the compressor senses the incoming wind temperature is higher than 23 after it stops for 15 minutes, the unit will switch to cooling mode. Otherwise it will keep the heating mode.
Enter into the cooling mode and follow the cooling process (supposed temperature 26 ).Compensation temperature difference will be cancelled automatically. When the temperature is high enough to stop the compressor, the compressor stops and there will be 3 minutes for idle mode. If the If the compressor senses the incoming wind temperature is equal to or below 23 after it stops for 15 minutes, the unit will switch to heating mode. The compensation temperature will be added automatically. Otherwise it will keep the cooling mode. When the unit switches from other modes to automatic mode, if the work state changes (judge first and then work), there will be 3 minutes for idle mode. Ant then the temperature will change to the judged level according to the incoming wind temperature.
Trial running
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The indicated frequency for trial running is 58Hz, wind volume is strong. The trial running will last for 30 minutes and then the unit will be powered off. The unit will exit the trial running if it receives any remote-control signal during the trial running period. There is no low-intense running protection.
Low Work-intense protection control Specification for heat-exchange temperature sensor B fixed number=3700 R(25 )= 10KUnder the cooling /moisture removing modes, the low work-intense protection will be carried out according to the heat-exchange temperatures as shown in the table below. Low Work-intense protection control Picture 11.1 Heat-exchange temperature THLHEATBL3 THLHEATBL2 THLHEATBL1 THLHEATBL0
Indicationlevel Normal level2 level 1 stop level 1 level 2
normal
Low Work-intense protection control will be neglected in the trial running. Low Work-intense protection control will be cancelled for 3 minutes temporarily after the powerful cooling starts for 1 minute (THLH[3 2 1 0]= 7 4.6 2.2 -0.5 )
High Work-intense protection control
Under the heating mode, the high work-intense protection will be carried out according to the heat-exchange temperatures as shown in the table below.
High Work-intense protection control:
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Heat-exchange temperature frequency values when the high work-intense starts THHEAT6 74.7 THHEAT5 70.3 THHEAT4 65.1 THHEAT3 62.2 THHEAT2 52.9 THHEAT1 51.6 THHEAT0 47.1
Indicatedfrequency
C D E D C B A B C D E Normal idle mode stop
High Work-intense protection High Work-intense protection alarm
High Work-intense protection alarm will start if there are two times of high work-intense protection within 30 minutes.
If the heat-exchange temperature does not reach THHEAT [2], it will resume to the normal temperature level control
The smaller one of the high work-intense frequency and level frequency will be the operation data.
1. EEPROM control EEPROM is wrong when the EEPROM parameter sum does not accord with the check sum after the outdoor unit is powered on. The outdoor unit EEPROM is wrong will be displayed when the indoor unit receives wrong EEPROM signals from the outdoor unit. In this case the control and emergency operation are not allowed. Unplug the unit to shoot the problem.
. Special functions 1. Power failure compensation
a. To enter into the function please press the sleep key 10 times with 4 beeps in 7 seconds and store the current state in the EEPROM of the indoor unit.
b. The indoor unit operates as follows when under the power failure compensation mode. Remote-control the emergency signal. The indoor unit operates as the remote-control and the emergency setting and store the current state in the EEPROM in the indoor unit.
The main unit operates as the set state on the display panel and stores the state in the EEPROM. Under the power failure compensation mode, unplug and plug again, the main unit will send the signals for current operation and power failure compensation to the indoor unit panel.
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a. Press the sleep key for 10 times with 2 beeps in 7 seconds to exit.
b. To set the timing and sleep function under the power failure compensation mode please plugs theunit after power failure and the main unit memory would be OFF state.
.System Major Function Sensor Code Definition: Tai= Indoor Ambient Temperature, Tao=Outdoor Ambient Temperature,Tc1=Indoor Coil, Td= Air Discharge, Te= Outdoor Coil, Ts=Air Intake
1.1 Outdoor Unit Operation Frequency and Control
1.1.1 Compressor Operation Frequency Control
Compressor Operation Frequency Range:
1.1.2 Compressor StartupRegardless of target frequency of indoor unit, each time when compressor is from off to on, it mustmaintain 60Hz,90Hz for one minute (Frequency will be immediately decreased under the condition thatoutdoor unit air discharge temperature overheating protection is activated or over current ofcompressor) then the compressor will operate towards target frequency. This process does not exist innormal operation of unit.
1.1.3 Heating: When completing compressor startup operation, it will operate as per frequency of indoor unit. After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.
1.1.4 Cooling & Dehumidification: When completing compressor startup operation, it will operate as per frequency of indoor unit. After 2 minutes, compressor operation frequency will be compensated as per relevant conditions.
1.1.5 Compressor Frequency Increase/Decrease Speed Rapid Frequency Increase/Decrease Speed 1 ----------1HZ/s Slow Frequency Increase/Decrease Speed 2 -----------1HZ/10s
1.2 Outdoor Fan Control
Outdoor TemperatureCoolingHeating
Compressor Operation Frequency
1.3 Outdoor Electronic Expansion Valve Control
1.3.1 The following is a description of electronic expansion valve operation: Energization Initial Operation
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Valve Complete Off Operation Valve operation after Compressor Startup and shutdown. Compressor Startup: Opening of valve must ensure restart of compressor when reaching benchmark opening. Compressor Shutdown It ensures complete off of valve after compressor shuts down.
1.3.2 Around the 2nd minute after compressor startup, valve opening can be adjusted based on various outdoor ambient temperature and corresponding frequency. Overheat benchmark will be adjusted if air discharge temperature is too high or too low in cooling or heating mode.
1.3.3 Valve Adjustment Time Interval and Method Valve Adjustment in Cooling Mode In cooling mode, if Tao>Tai The system will adjust valve based on difference between compressor intake air temperature and indoor unit coil temperature. Valve Adjustment in Heating Mode The system will adjust valve based on difference between compressor intake air temperature and defrosting temperature. 1.4 Four-way Valve Control
Defrosting Four-way Valve Control (please see defrosting process for details) Time sequence of the defrosting operation is as follows:
Four-way Valve Work Status in Other Modes: In heating mode, four-way valve is on. If compressor is off or is switched to non-heating mode, four-way valve ensures that it is off at least 2 minutes after compressor shuts down.
1.5 Outdoor Defrosting Control
1.5.1 Defrosting Mode Entry Conditions The unit will enter defrosting mode when compressor starts up and operates for 10 minutes continuously in heating mode or after compressor runs for an accumulated time of 45 minutes (Upon completion of defrosting or when switched to cooling mode, compressor accumulated operation time will be cleared) and when 2 minutes’ continuous checking by defrosting sensor TE (check frosting condition of outdoor unit heat exchanger) and outdoor ambient temperature sensor TA meets the following conditions: TE C×TAAmong which: C:TA 0 C=0.8 TA 0 C=0.6For area prone to frost, the value is set at 6 when unit leaves the factory. Defrosting entry temperature control -15 C×TA -5
1.5.2 Defrosting Time Interval time interval between two defrosting cycles is 45 minutes.
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1.5.3 Defrosting Operation When defrosting begins, compressor will stop for one minute, external fan is running and 50s later, four-way valve will be off. When compressor starts, external fan will be off, compressor will run at 60HZ for 60s then move on to target frequency of 80HZ. During defrosting, compressor current and air discharge overheat protection features are effective. During defrosting, if compressor shuts down due to activation of protection feature or due to malfunction, it will resume after 3 minutes. In the unit is still within defrosting cycle, it will resume defrosting and startup of compressor will be based on the rule for defrosting startup. (The unit will exit defrosting mode and handle fault in the event of 3 consecutive restart failures.) On entering defrosting, it must guarantee that compressor will operate for a minimum of 2 minutes in defrosting mode before exit.
1.5.4 Defrosting Exit Condition When one of the following conditions is met, defrosting operation will be switched to heating operation.
1 :Temperature of outdoor heat exchanger exceeds 7 for 80s continuously2 : Temperature of outdoor heat exchanger exceeds 12 for 5s continuously3 :Defrosting operation continues for 9 minutes.
1.5.5 When defrosting exit conditions are met, the unit will operate as follows Compressor stops and external fan starts, 50s later, four-way valve will be on, 60s later, compressor will operate as per startup process.
1.6 PTC Output Control
When outdoor unit is energized, PTC output value is 0, 10s later, output value is 1. When compressor stops for 10 minutes continuously, PTC output value is 0. On receiving compressor startup instruction, initial PTC output is 1, and compressor startup will be performed 5s later.
. System Protection Function
2.1 Time interval between compressor shutdown and restart is set at 3 minutes to ensure that compressor will only restart after 3-minute shutdown and initial energization valves are turned on to adequate opening position after being fully turned off.
2.2 TD High Temperature Protections
As long as unit is on, the TD air discharge overheat protection feature will be activated, yet air discharge sensor fault must be alarmed 4 minutes after compressor starts.
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TD Abnormal Shutdown
1 1 7 Rapid frequency drop 1HZ/s
1 1 2 Slow frequency drop (1HZ/10s)
1 0 8 Invariable frequency
1 0 5 Frequency rise (1HZ/10s)
98 Frequency rise 1HZ/1 s
When TD>110 for 20s continuously air discharge overheat protection will be activated and fault willbe reported to indoor unit.It will not continue in other conditions.
2.3 Outdoor Temperature Limit
Cooling: When outdoor temperature is lower than 15 , cooling operation will start, compressorfrequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.Heating: When outdoor temperature is higher than 20 , heating operation will start, compressorfrequency is limited to less than 50 HZ, outdoor wind speed is forced at level 1.
2.4 Rated Operation
Rated Cooling:When receiving the instruction of indoor unit rated operation, the unit will start rated cooling operation.Rated Heating:When receiving the instruction of indoor unit rated operation, the unit will start rated heating operation.
2.5 Special Features
1. Forced Cooling: When receiving indoor forced cooling signal, cooling operation will start in afrequency signaled by indoor unit. Only air discharge temperature and over current protection featuresare effective and other protection features are invalid.2. Rated, Middle and Minimum Capacity Operation: When receiving indoor, rated, middle andminimum capacity operation signal, outdoor unit will operate as per wind speed and frequency set byEEPROM and all the protection features are effective.
2.6 Fault Display and Treatment
In case outdoor unit faults, the alarm indicator lamp will blink and blink frequency is 1HZ Time intervalbetween blink cycles is 3s.Alarm indicator lamp is off when there is no fault.
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4. Thermistor resistance chartIndoor ambiend temperature sensor
Drawing for the installation of indoor and outdoor units
Read this manual before installation
1.Driver2.Hacksaw3.Hole core drill
5.Spanner(14,17,19 and 24 mm)6.Torque wrench(17mm,22mm,24mm)7.Pipe cutter8.Flaring tool
9.Knife10.Nipper 13.Reamer11.Gas leakage detector or soap-and-water solution
12.Measuring tape
Explain sufficiently the operating means to the useraccording to this manual.
Necessary Tools for Installation
Arrangement of piping directions
Rear leftRearrightLeft
BelowRight
mor
e th
an 5
cm
more than 60cm
more than 10cm
more than 15cm
more than 10cm
more than 10cm
more than 10cm
Attention must be paid tothe rising up of drain hose
The marks from to in the figure are the parts numbers.
The distance between the indoor unit and the floor should bemore than 2m.
14.Refrigerant oil
Optional parts for pipingMark Parts name
Non-adhesive tape
Adhesive tape
Saddle(L.S) with screwsConnecting electric cablefor indoor and outdoor
Drain hose
Heating insulating material
Piping hole cover
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Liquid pipe
Gas pipe 9.52mm(3/8")
Fixing of outdoor unit
Indoor Unit Selection of Installation Place Outdoor Unit
Fix the unit to concrete or block with bolts( 10mm) and nuts firmly and horizontally.When fitting the unit to wall surface, roof or rooftop, fix a supporter surely with nailsor wires in consideration of earthquake and strong wind.If vibration may affect the house, fix the unit by attaching a vibration-proof mat.
Place, robust not causing vibration, where the body can be supportedsufficiently.Place, not affected by heat or steam generated in the vicinity, whereinlet and outlet of the unit are not disturbed.Place, possible to drain easily, where piping can be connected with theoutdoor unit.Place, where cold air can be spread in a room entirely.Place, nearby a power receptacle, with enough space around. (Referto drawings).Place where the distance of more than lm from televisions, radios,wireless apparatuses and fluorescent lamps can be left.In the case of fixing the remote controller on a wall, place where theindoor unit can receive signals when the fluorescent lamps in the roomare lightened.
Place, which is less affected by rain or direct sunlight and issufficiently ventilated.Place, possible to bear the unit, where vibration and noise arenot increased.Place, where discharged wind and noise do not cause anuisance to the neighbors.Place, where a distance marked is available as illustratedin the above figure.
Power Source
Selection of pipe
Before inserting power plug into receptacle, check the voltage without fail. The power source is the same as the corresponding name plate.Install an exclusive branch circuit of the power.A receptacle shall be set up in a distance where the power cable can be reached. Do not extend the cable by cutting it.
To this unit, both liquid and gas pipes shall be insulatedas they become Iow temperature in operation.Use optional parts for piping set or pipes covered withequivalent insulation material.The thickness of the pipe must be 0.8mm at least.
For 18 22
6.35mm(1/4")
12.7mm(1/2")
HSU-22HC03/R2(DB)
113.5 583 113.5
319.
5
Floor fixing dimensionsof the outdoor unit(Unit:mm)
HSU-18HC03/R2(DB)
Floor fixing dimensionsof the outdoor unit(Unit:mm)
140 500 140
256
HSU-12HC03/R2(DB)HSU-09HC03/R2(DB)
For 09 12
6.35mm(1/4")
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WeightThread
150mm 70mm
Holes for fixing the mounting plate
Fit the level line
1.Carry out, based on the neighboring pillars or lintels, a proper leveling for the plate to be fixed against the wall, then temporarily fasten the plate with one steel nail.2. Make sure once more the proper level of the plate, by hanging a thread with a weight from the central top of the plate, then fasten securely the plate with the attachment steel nail.3. Find the wall hole location Amm using a measuring tape
2.Making a Hole on the Wall and Fitting the Piping Hole Cover
When the mounting plate is fixed side bar and lintel
Refer to the previous article, " When the mounting plate is first fixed ", for theposition of wall hole.
Fix to side bar and lintel a mounting bar, Which is separately sold, and then fastenthe plate to the fixed mounting bar.
Make a hole of Bmm in diameter,slightly descending to outside the wall.Install piping hole cover and seal itoff with putty after installation
(Section of wall hole) Piping hole pipe
Outdoor side
Thicknessof wall
Indoor side
Wall hole
Bmm
Indoor unit1.Fitting of the Mounting Plate and Positioning of the wall Hole
When the mounting plate is first fixed
145 60
70
Amm Bmm
150
HSU-09HC03/R2(DB)
HSU-18HC03/R2(DB)HSU-12HC03/R2(DB)
HSU-22HC03/R2(DB)6.35mm(1/4")
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4.Connecting the indoor/outdoor Electric Cable
Removing the wiring coverRemove terminal cover at right bottom corner of indoorunit, then take off wiring cover by removing its screws.
Fixing the indoor unit bodyHang surely the unit body onto the upper notches of themounting plate. Move the body from side to side to verifyits secure fixing.In order to fix the body onto the mounting plate,hold upthe body aslant from the underside and then put it downperpendicularly.
Other direction pipingCut away, with a nipper, the lid for piping according to the piping direction and then bend the pipe accordingto the position of wall hole. When bending, be careful not to crash pipes.Connect beforehand the indoor/outdoor electric cable, and then pull out the connected to the heat insulationof connecting part specially.
Left Left-rear pipingIn case of left side piping, cut away, with a nipper, the lid for left piping.In case of left-rear piping, bend the pipes according to the piping direction to the mark of hole for left-rearpiping which is marked on heat insulation materials.1. Insert the drain hose into the dent of heat insulation materials of indoor unit.2. Insert the indoor/outdoor electric cable from backside of indoor unit, and pull it out on the front side, then connect them.3. Coat the flaring seal face with refrigerant oil and connect pipes. Cover the connection part with heat insulation materials closely, and make sure fixing with adhesive tape
Indoor/outdoor electric cable and drain hose must be bound with refrigerant piping by protecting tape.
Lid for right piping
Lid for under piping pipe
Lid for left piping
Heat insulationmaterial
Drain hose
Piping
Indoor/outdoorelectric cable
Fix with adhesive tape
Drawing of pipeRear piping
Draw pipes and the drain hose, then fasten them with the adhesive tape
3.Installation of the Indoor UnitIndoor unitHaier air conditioner Edition: 1.0-070801
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When connecting the cable after installing the indoor unit1. Insert from outside the room cable into left side of the wall hole, in which the pipe has already existed.2. Pull out the cable on the front side, and connect the cable making a loop.
Insert the cable from the back side of the unit, then pull it out on the front side.Loosen the screws and insert the cable ends fully into terminal block, then tighten the screws.Pull the cable slightly to make sure the cables have been properly inserted and tightened.After the cable connection, never fail to fasten the connected cable with the wiring cover.
LN
{
Indoor unit
Note: When connecting the cable, confirm the terminal number of indoor and outdoor units carefully. If wiring is not correct, proper operation can not be carried out and will cause defect.1. If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similar qualified person. The type of connecting wire is H05RN-F or H07RN-F.2. If the fuse on PC board is broken please change it with the type of T. 3.15A/250V.3. The wiring method should be in line with the local wiring standard.4. After installation, the power plug should be easily reached.5. A breaker should be incorporated into fixed wiring. The breaker should be all-pole switch and the distance between its two contacts should be not less than 3mm.
Indoor unitIndoor unit Outdoor unit
HSU-09HC03/R2(DB)
4G1.5mm2
Power cable: 3G1.5mm2
32
1
45
32
1
Power cable: 3G1.5mm2Indoor unit
4
Outdoor unit
4G1.5mm2
Outdoor unit
Connecting wiring:
Connecting wiring:
Connecting wiring:Connecting wiring:
HSU-22HC03/R2(DB)
HSU-12HC03/R2(DB)
HSU-18HC03/R2(DB)
{
LN
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Apply refrigerant oil on half union and flare nut.
Drain hose
Outdoor unit1.Installation of Outdoor Unit
2.Connection of pipes
Install according to Drawing for the installation of indoor and outdoor units
To bend a pipe, give the roundness as large as possible not to crush the pipeConnecting the pipe of gas side first makes working easier.
Half union Flare nut
Spanner Torque wrench
3.ConnectionUse the same method on indoor unit. Loosenthe screws on terminal block and insert theplugs fully into terminal block, then tighten thescrews.Insert the cable according to terminal numberin the same manner as the indoor unit.
If wiring is not correct, proper operation cannot be carried out and controller may bedamaged.Fix the cable with a clamp.
4.Attaching Drain-Elbow If the drain-elbow is used, please attach it as figure.
Note: Only for heat pump unit.
Be careful that matters, such as wastes of sands, etc. shall not enter the pipe.The standard pipe length is 5m. If it is over 5m, the function of the unit will be affected. If the pipe hasto be lengthened, the refrigerant should be charged, according to 20 g/m. But the charge of refrigerantmust be conducted by professional air conditioner engineer. Before adding additional refrigerant,perform air purging from the refrigerant pipes and indoor unit using a vacuum pump,then chargeadditional refrigerant.
Forced fastening without carefulcentering may damage thethreads and cause a leakage of gas.
Pipe Diameter Fastening torque
42 N.m
Gas side 15.88mm(5/8") 60 N.m
Liquid side 9.52mm(3/8")
Liquid side 6.35mm(1/4") 18N.m
Gas side 12.7mm(1/2") 55N.m
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Outdoor unit6.Purging Method:To use vacuum pump
Detach the service port's cap of 3-way valve , thevalve rod's cap for 2-way valve and 3-way's, connectthe service port into the projection of charge hose(Iow) for gaugemanifold. Then connect the projectionof charge hose (center) for gaugemanifold intovacuum pump.
3-way valve
Gas Side
2-way valve
Service port cap
Gaugemanifold(for R410A)
Vacuum pump(for R410A)
Open
Close
Liquid Side
Open the handle at Iow in gaugemanifold, operatevacuum pump. If the scale-moves of gause (Iow)reach vacuum condition in a moment, check again.
Vacuumize for over 15min. And check the level gaugewhich should read -0.1 MPa (-76 cm Hg) at Iowpressure side. After the completion of vacuumizing,close the handle 'Lo' in gaugemanifold and stop theoperation of the vacuum pump.Check the condition of the scale and hold it for 1-2min.If the scale-moves back in spite of tightening, makeflaring work again, the return to the beginning of .
Open the valve rod for the 2-way valve to an angle ofanticlockwise 90 degrees.After 6 seconds, close the 2-way valve and make theinspection of gas leakage.
No gas leakage?
In case of gas leakage, tightenparts of pipe connection. Ifleakage stops, then proceedsteps.
Detach the charge hose from the service port, open2-way valve and 3-way valve . Turn the valve rodanticlockwise until hitting lightly.
To prevent the gas leakage, turn the service port'scap, the valve rod's cap for 2-way valve and 3-way'sa little more than the point where the torque increasessuddenly.
After attaching the each caps, check the gas leakagearound the caps.
CAUTION:1.If the refrigerant of the air conditioner leaks, it is necessary to discharge all the refrigerant. Vacuumize first, then charge the liquid refrigerant into air conditioner according to the amount marked on the name plate.
2.Please do not let other cooling medium, except specified one (R410A), or air enter into the cooling circulation system. Otherwise, there will be abnormal high pressure in the system to make it crack and lead to personal injuries.
If it does not stop gas leakage, dischargewhole refrigerants from the service port.After flaring work again and vacuumize,fill up prescribed refrigerant from the gascylinder.
Anti countercurrent joint
7
6
1
2
3
1
3
4
5
6
7
8
Open90
O
Valve rod cap
Valve rod cap7
7
3-way valve
2-way valve
3-way valve
2-way valve
3-way valve
2-way valve
2-way valve
3-way valve
2-way valve
3-way valve
Gas SideLiquid Side
6.35mm(1/4")
12.7mm(1/2")
HSU-22HC03/R2(DB)HSU-18HC03/R2(DB)
HSU-09HC03/R2(DB)HSU-12HC03/R2(DB)
Tube(for R410A)
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It becomes high midway. The end is immersedin water.
It waves. The gap with the groundis too small
Less than 5cm
There is the bad smellfrom a ditch
1.Power Source Installation
2.Cutting and Flaring Work of Piping
3.On Drainage
Check for Installation and Test Run
Check Items for Test Run
The power source must be exclusively used for air conditioner. (Over I0A)In the case of installing an air conditioner in a moist place, please install anearth leakage breaker.For installation in other places, use a circuit breaker as far as possible.
Pipe cutting is carried out with a pipe cutter and burs must be removed.After inserting the flare nut, flaring work is carried out.
Please install the drain hose so as to be downward slope without fail.Please don't do the drainage as shown below.
Please pour water in the drain pan of the indoor unit, and confirm that drainage iscarried out surely to outdoor.In case that the attached drain hose is in a room, please apply heat insulationto it without fail.
Please kindly explain to our customers how to operate through the instruction manual.
Gas leak from pipe connecting?Are the connecting wirings ofindoor and outdoor firmly insertedto the terminal block?Is the connecting wiring of indoorand outdoor firmly fixed?
Is drainage securely carried out?Is the earth line securelyconnected?Is the indoor unit securely fixed?Is power source voltage abidedby the code?Is there any noise?
Put check mark in boxes
Is the lamp normally lighting?Are cooling and heating (whenin heat pump) performed normally?Is the operation of room temperatureregulator normal?
Flare tooling die
Liquid side
Gas side
Pipe diameter Size A (mm)6.35mm(1/4")9.52mm(3/8")
15.88mm(5/8")
0.8~1.51.0~1.8
1.4~2.2
Liquid side
Correct Incorrect
Lean Damage of flare Crack Partial Too outside
Gas side
12.7mm(1/2") 1.2~2.0
Haier air conditioner Edition: 1.0-070801
HSU-09,12,18,22HC03/R2(DB) The End
Domestic Air Conditioner
Sincere Forever
Haier Group
Haier Industrial Park, No.1, Haier Road Edited by:chenhuimin