KHT-096 mc ENG-051114 - Vallox Oy · Low-energy ventilation unit with heat recovery and demand-controlled automatic melting © Vallox 1.09.601ENG Updated: 5.11.2014 Valid from: 19.9.2013

Low-energy ventilation unit with heat recovery and demand-controlled automatic melting

© Vallox1.09.601ENGUpdated:5.11.2014Valid from:19.9.2013

Vallox096MC

1 Extract air fan (behind protective cover)

2 Supply air fan (behind extract air duct)

3 Outdoor air fi lter F7

4 Heat recovery cell

5 Summer/winter damper

6 Outdoor air fi lter G4

7 Extract air fi lter G4

8 Post-heating radiator (behind extract air duct)

9 Safety switch

10 R-model unit: Adjustment of supply air heating

L-model unit: Adjustment of supply/extract air fl ow

11 R-model unit: Adjustment of supply/extract air fl ow

L-model unit: Adjustment of supply air heating

12 SC controller

Code 3721ModelsVALLOX 096 MC RVALLOX 096 MC L

Operating, maintenance and technical instructions

Electrical connection 230 V, 50 Hz, ≈ 5.1 A (plug)Degree of protection provided by enclosures IP 34Fans Extract air 89 dm3/s 100 Padirect current (DC) Supply air 86 dm3/s 100 PaHeat recovery Cross-counter fl ow cell, > 80%Heat recovery bypass AutomaticElectric post-heating unit (standard) 900 W 3.9 AFilters Supply air G4 and F7 Extract air G4Weight (with package) 53 kgVentilation power adjustment - SC controller (option) - Cooker hood (option) - Fireplace switch (option)Options - Insulated attic fl oor penetration plate - Ceiling mounting plate Vallox 096

TECHNICAL DATA

12 The fi gure shows the R model

1

6

9

8

2

10

11

7

3

5

4

2

Vallox096MC

© VALLOX • We reserve the right to make changes without prior notice.What the units include can vary depending on the sales area.

OPERATING INSTRUCTIONS

Adjustment of supply air temperature

Supply and extract air fl ow adjustment potentiometer

Fireplace switch, fl ush mounting (option)

Adjustment of supply air temperature and summer/winter functionThe temperature of air coming to the dwelling can be adjusted between circa +10 °C and +30 °C. The unit has an automatic summer/winter function.• When temperature adjustment is between +10 and +30 °C. the heat recovery cell is

not bypassed. This means that the winter function is on.• In the OFF position the summer function is on. That means that post-heating is not active

and the unit bypasses the heat recovery cell when outdoor air temperature is more than +14 °C. The unit recovers heat when outdoor air temperature has gone down below +12 °C.

• In the AUTO position the unit functions all year round as follows: The setpoint for post-heating is +17 °C. The unit bypasses the heat recovery cell when outdoor air tempe-rature is more than +14 °C. The unit recovers heat when outdoor air temperature has gone down below + +12 °C. When bypass is on, post-heating is not active.

Fireplace switch functionIt is possible to connect a timer-operated switch to the unit. The switch stops the extract air fan during the time when the fi replace is heated. NOTE! The starting of the extract air fan may weaken draught in the fi replace! In winter, this situation may disturb the winter function of the unit. The situation will normalise in a while, after the fi replace function stops.

Winter function of ventilation unitA threshold value has been set at the factory for the freezing of the heat recovery cell. When the threshold is exceeded, the ventilation unit starts to melt the heat recovery cell by guiding outdoor air fl ow to bypass the heat recovery cell.A normal melting period takes from 15 to 45 minutes depending on the extent of ice on the heat recovery cell and on the amount of extract air fl ow. The unit has been optimised to operate on the factory settings in normal operation in dwellings and detached houses. The winter function parameters can be adjusted for extreme conditions, such as a swimming bath, but even then it is advisable to contact Vallox Maintenance.

Adjustment of relationship between supply and extract airThis feature may be useful when adjusting air fl ows at the valves during mounting. After the valves have been adjusted, a user does not need, and must not, touch the adjustment. When needed, supply or extract air fl ow can be reduced at the potentiometer.When the potentiometer is approximately halfway, supply and extract air fl ow have not been reduced. Turning the potentiometer anticlockwise reduces air fl ow on the supply side, and turning it clockwise reduces air fl ow on the extract side.

Maintenance reminderThe unit reminds of the need for maintenance every six months if an indicator (not standard) has been connected to the connectors of the fault signal relay. The indicator then blinks at one-second intervals. The maintenance reminder is reset when the door of the ventilation unit is opened. See the maintenance instructions for information on the necessary maintenance activities.

Four-step control switch

Fan speed adjustmentThe fan speed of a Vallox ventilation unit can be controlled with a control switch (option), with a separate cooker hood (option) or directly with a 0-10 V voltage signal.Speeds 1, 2, 3 and 4 can be selected at the control switch.1. Operation during absence. When the dwelling is empty, ventilation can be reduced

temporarily.2–3. Normal operation. In normal operation, air has to be replaced once every two hours.4. Boosted operation. Cooking, taking a sauna bath, washing, drying clothes, using the

toilet, having guests or a corresponding situation may cause a need for higher ventila-tion than in normal operation.

Cooker hood PTXPA-SC

2 © VALLOX • We reserve the right to make changes without prior notice.

This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand

the hazards involved. Children shall not play with the appliance.

Cleaning and user maintenance shall not be made by children without supervision.

3

Vallox096MC


OPERATING INSTRUCTIONS

TroubleshootingWhen a fault described in the table appears, the unit indicates of the fault with a fault signal relay, indicator light and LED on the circuit board. The number of blinks reveals the fault in question

Led blinks Problem Repair

1 Supply air sensor after the HR cell is faulty Check the sensor and conductors, replace if needed

2 Extract air sensor is faulty Check the sensor and conductors, replace if needed

3 Supply air sensor is faulty Check the sensor and conductors, replace if needed

4 Exhaust air sensor is faulty Check the sensor and conductors, replace if needed

5 Outdoor air sensor is faulty Check the sensor and conductors, replace if needed

6 Supply air fan has stopped Check the wiring of the fan, replace the fan if needed

7 Extract air fan has stopped Check the wiring of the fan, replace the fan if needed

8 EEPROM faulty Replace the circuit board of the unit with a new one

4

Vallox096MC


MAINTENANCE INSTRUCTIONS

Filters

S

A

B

C

D

Heat recovery cell

C

E

D

MAINTENANCEBefore starting maintenance operationsWhen you open the VALLOX 096 MC unit, the security switch (S) turns voltage off. In spite of this, disconnect the plug of the unit. Disconnect the plug of the VALLOX 096 MC unit before starting maintenance operations.

FiltersWhen the maintenance reminder gives an alarm, the cleanliness of the fi lters must be checked. Outdoor air is fi ltered in the unit with two kinds of fi lters. A coarse fi lter (A) fi lters off insects, heavy pollen and other dust. An F7 class fi ne fi lter (B) fi lters off fi ne dust invisible to the eye. Extract air is fi ltered with a coarse fi lter (C).By using original Vallox fi lters you ensure good operation of the ventilation unit and the best fi ltering result. The replacement interval of fi lters depends on dust content in ambient air. It is recommended to replace fans in spring and autumn, but at least once a year.

Heat recovery cellWhen you replace the fi lters, you are also advised to check the cleanliness of the heat recovery (HR) cell (D) at an interval of approximately every two years. The sealing ledge (E) above the HR cell must be pulled off in the direction shown by the arrow in the fi gure. When the sealing ledge has been removed, the HR cell can be pulled out of the unit. Note! The laminas of the HR cell are very thin and get easily damaged.If the HR cell is dirty, wash it by putting it in a solution of water with washing-up liquid. Rinse the HR cell clean with a jet of water. When water has drained from between the laminas, you can push the HR cell back in place. Finally, push the sealing ledge in place.

5

Vallox096MC



FansCheck the cleanliness of the fans when carrying out maintenance for fi lters and the heat recovery cell. Clean the fans if needed. The fans are very sensitive to external mechanical damage, and it is recommended to clean them in place.The fan blades can be cleaned with compressed air or with a brush. Do not remove or move the balancing pieces on the fan blade.

Cleaning supply air fan (T)Remove the extract air fi lter (C), upper support for the HR cell (E) and the HR cell (D) from the unit as instructed earlier. Pull the temperature sensor off from the upper part of the extract air duct (G) (fi gure 1) and then remove the stopper screw from the lower edge of the duct. After that the extract air duct comes out by turning and simultaneously pushing downwards (fi gures 2 and 3).Detach the temperature sensor from the resistor support (fi gure 4).Then detach the support of the additional and post-heating resistors (H), fastened with two butterfl y nuts from downward (fi gure 5). Then pull the resistors and the support from the unit and disconnect the quick coupling of the resistor conductors. The fan can now be cleaned in place. If you wish to detach the fan, lift it upwards and crank the plastic lock to the right using for instance a chisel (fi gure 6).The fan then falls down and can be pulled out of the unit. Disconnect the quick coupling of the fan conductors. When needed, detach the intermediate shaft of the bypass damper from the end of the partition wall (fi gure 7).

Supply air fan

TH

G i

1

4

7

2

5

3

6

6

Vallox096MC



Condensing waterDuring the heating season, humidity of extract air condenses into condensing water. Water formation may be abundant in new buildings or if ventilation is low compared to the humidity build-up caused by the residents. Condensing water needs to fl ow out from the ventilation unit without hindrance. When carrying out maintenance, for instance in autumn before the beginning of the heating season, make sure that the condensing water outlet in the bottom tank is not clogged. You can check it by pouring a little water in the tank. Clean if needed. Do not let water fl ow into electrical devices.

© VALLOX • We reserve the right to make changes without prior notice.

Extract air fan

Condensing water

Cleaning extract air fan (P)Remove the extract air fi lter (C), upper support for the HR cell (E) and the HR cell (D) from the unit as instructed earlier. Remove the supply air fi lters G4 and F7.Open the four screws (F, fi gure 8) on the protective cover of the extract air fan and remove the cover downwards. The extract air fan can now be cleaned in place (fi gure 9). If you wish to detach the fan, lift it upwards and crank the plastic lock to the right using for instance a chisel (fi gure 6).The fan falls down and can be pulled out of the unit (fi gure 10). Disconnect the quick coupling of the fan conductors.

9 108

FP

55

545

600

Model RModel L

121

143

143

121

7

Vallox096MC


TECHNICAL DATA

600

Model RModel L

121

143

143

121

Dimensions and duct outlets

Duct outlets, model RInner diameter of female outlet collar ø 125 mm1. Supply air to dwelling 2. Extract air from dwelling to unit3. Exhaust air out4. Outdoor air to unit

Duct outlets, model LInner diameter of female outlet collar ø 125 mm1. Exhaust air out2. Outdoor air to unit 3. Supply air to dwelling 4. Extract air from dwelling to unit

Measuring pointsMeasuring points after the connection outlet. Fan curves indicate the total pressure available for duct losses.

Input powers of fans

Supply air

Extract air

Fan speeds

(V)

Extract air fl ow (l/s)

Combined input power of fans

W

2,8 12 12

4,5 22 21

6 38 38

7 49 57

7,7 61 79

9 73 121

10 86 170

11,35 92 203

Supply/extract air volumes

E= Extract air fanS = Supply air fan

Input power (total) (W)

Air fl ow (max) (dm3/s)SFP =

SFP (Specifi c Fan Power) recommended value < 2.5 (kW m3/s)At a lower total pressure, SFP will be smaller at the same speed

Sound values

Sound power level in supply air duct (one duct) by octave band LW, dB

Sound power level in extract air duct (one duct) by octave band LW, dB

ADJUSTMENT POSITION/AIR FLOW dm³/s ADJUSTMENT POSITION/AIR FLOW dm³/sAdjustment position 2,8V 4,5V 6,0V 7,0V 7,7V 9,0V 10,0V 11,35V 2,8V 4,5V 6,0V 7,0V 7,7V 9,0V 10,0V 11,35V

Air fl ow dm3/s 10,6 25,2 38,1 46,6 53,8 65,6 72,9 76,0 12,0 27,6 36,7 44,2 50,5 61,0 70,4 76,4

Medium frequency of the octave band Hz

63 39 52 61 62 64 71 69 68 26 30 40 44 47 53 54 57

125 36 45 51 56 58 62 65 66 24 34 40 46 49 53 57 57

250 41 51 57 60 62 65 67 68 22 33 39 42 45 49 53 54

500 38 50 54 57 60 63 65 66 28 39 44 47 49 53 55 56

1000 34 48 54 57 59 62 64 65 23 36 42 45 48 51 54 55

2000 24 43 50 55 57 61 64 65 13 24 31 35 37 41 43 44

4000 16 32 42 47 49 54 56 58 16 17 21 24 26 30 33 33

8000 21 21 27 34 38 44 48 49 21 21 21 21 21 22 23 24

LW,dB LWA, dB(A)

45 57 64 66 69 73 74 74 33 43 49 52 55 59 62 63

39 52 58 61 64 67 69 70 29 39 45 49 51 55 57 57

Sound pressure level coming from the unit through the envelope in the rooms where the unit has been installed (10 m2 sound absorption

Vallox 096 MC ADJUSTMENT POSITION/AIR FLOW dm3/s2,8V 4,5V 6,0V 7,0V 7,7V 9,0V 10,0V 11,35V

14/15 31/30 48/44 60/54 68/62 82/74 92/83 98/89

LpA, dB (A) 23 29 35 38 41 44 46 47

Volume fl ow rate dm3/s

Pres

sure

loss

in du

ctwor

k /

Tota

l pre

ssure

Pa

dm3/s

93

102

298

363600

141459

407

430

600

545

55

31

42

Location of condensing water outlets, R and L models

SFP 1,0 SFP 1,5 SFP 2,0

S 2,8V S 4,5V

S 6,0V

S 7,0V S 7,7V S 9,0V

S 10,0V

S 11,35V

E 7,0VE 7,7V

E 9,0V

E 10,0VE 11,35V

E 6,0V

E 2,8V

E 4,5V

0

25 50 75 100 125 150 175 200 225 250 275 300 325 350

0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110

Recommended operating range

8

Vallox096MC


TECHNICAL DATA


Internal electrical connection Vallox 096 MC (model 3721)

Adjus

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can b

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9

Vallox096MC


MOUNTING

Mounting

VALLOX 096 MC has to be mounted in a place where temperature does not go below +10 °C. Without protective enclosure, the unit must be located in a place with no acoustic disturbance: storerooms, technical rooms etc.

Wall mountingVALLOX 096 MC is mounted on a wall with a mounting plate as shown in the adjacent fi gure. Make sure that the unit is horizontally level after mounting.

Wall constructionObserve the wall construction during mounting. Avoid mounting the unit on a hollow, echoing dividing wall and on a bedroom wall because of sound conduction, or prevent sound conduction.

Condensing water connectionsThe delivery includes a water seal. By connecting a pipe to the wa-ter seal the water condensing from extract air can be led to a fl oor drain (not directly to the drain). The pipe must not rise after the water seal. The unit has to be mounted horizontally level, so that conden-sing water can get freely out of the unit.

5

380

165

433

The minimum distance between the top of the unit and the fi nished ceiling surface is 30 mm.

162

12 21

20 60

20 30 30

2060 11

203030

11

84 84

35 30 35

ø7 14kpl550

30

25 25

Wall mounting plate

30ϒWall mounting plate

Take into account that the unit rises during mounting 10 mm higher than the fi nal height.

Bottom edge of wall bracket

Pipe outer diameter ø 12 mm

10

Vallox096MC


MOUNTING


4332

544

600

600

5

395

8

15 15

630

J

Ceiling mounting with ceiling mounting plate (option)An optional ceiling mounting plate can be used with the unit. The ceiling mounting plate is attached to the ceiling with M8 thread bars. Fix the bars so that they stand the weight of the unit. The ceiling mounting plate has to be fi xed horizontally in order to ensure that the unit will be straight. The outdoor and exhaust air duct must be in-sulated against condensation, also between the unit and the ceiling mounting plate. The ceiling mounting plate is mounted horizontally level, and it has to be attached so that there is a space of circa 4 mm between the back edge of the ceiling mounting plate and the wall. The ventilation unit is then as close to the wall as possible. Minimum distance between the bottom edge of the ceiling mounting plate and the ceiling of the room is 50 mm.The ceiling mounting plate is fi xed to the ceiling with M8 thread bars. After the thread bars have been fastened to the ceiling, fi rst turn the nuts into the thread bars and lift the ceiling mounting plate in

place. Then push a rubber damper and washer to each thread bar, all the way into the cup of the plate, and turn the nut. Shorten the lower ends of the thread bars so that they will be at no more than 25 mm from the lower surface of the ceiling mounting plate.

Mounting of ventilation unit to ceiling mounting plateMount the locking washers (J) delivered with the ceiling mounting plate in place with the 4 screws. Lift the unit and take the kables through the opening in the ceiling mounting plate. Put the locking devices attached to the top of the ventilation unit at the openings in the ceiling mounting plate and lift upwards. Make sure that the unit is locked in place.Check that the condensing water insulation between the unit and the ceiling mounting plate is in place in the exhaust and outdoor air duct. The unit can be detached from the ceiling mounting plate by pul-ling the spring-loaded moulding to the direction shown by the arrow (more detailed information provided with the ceiling mounting plate).

Attic fl oor penetration plate (option)When an attic fl oor penetration plate is used, the tightness of the vapour barrier has to be ensured.

Minimum distance to the back wall is 5 mm.

Minimum distance to side walls is 15 mm.

Minimum distance between the bottom edge of the ceiling mounting plate and the ceiling of the room is 50 mm.Minimum distance to the back wall is 4 mm.

11

Vallox096MC


TECHNICAL DATA

Exploded view and parts list VALLOX 096 MC (model 3721)

3

1

2

1 2

4

5

6

7

8

9

10

1112

13

14

15

16

17

18

19

2021

No. Part Code1 Fan assembly 11088002 Fan motor 9353603 Wall mounting plate 30807004 Water seal 32925005 G4 coarse fi lter supply air 9780446 Filter stand supply air 34644007 F7 fi lter 9782208 HR cell 9332609 Upper support for HR cell 346720010 Filter stand extract air 346450011 G4 coarse fi lter extract air 978045

No. Part Code12 Bypass duct assembly, handedness must be indicated 347510013 Damper motor 93062114 Extract air outlet 98502615 Motherboard MC 94903516 Safety switch 94837017 Post-heater, R-model unit 942210 Post-heater, L-model unit 94221118 Door assembly 347520019 Door latch assembly 335590020 NTC sensor, sensor number must be indicated 94614021 Glass tube fuse 5x20 0.4 A slow 952485

1.09

.601

ENG

/5.

11.2

014/

PDF

KHT-096 mc ENG-051114 - Vallox Oy · Low-energy ventilation unit with heat recovery and demand-controlled automatic melting © Vallox 1.09.601ENG Updated: 5.11.2014 Valid from: 19.9.2013

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