Vallox TSK Multi 50 MC Low-energy Ventilation Unit User Manual

Manual

Model
Low-energy ventilation unit with heat recovery
Vallox TSK Multi 50 MC
Vallox TSK Multi 80 MC
Types
3603 B3602
Document
D2585
Valid from
07.03.2022
Updated
20.06.2022

MAIN PARTS

| Supply air fan
---|---
| Extract air fan
| Post-heating radiator, electrical, 900W (behind the supply air fan)
| Bypass duct heater, electricity, 900 W (only TSKMulti 80 MC, behind the heat recovery cell)
| Heat recovery cell
| Fine filter for supply air
| Coarse filter for supply air
| Coarse filter for extract air
| Bypass damper of the HR cell
| Safety switch
| Adjusting the supply and extract air ratio
| Adjusting the supply air temperature and summer/winter function
| Vallox Simple Control panel (ordered separately)
| Vallox ProControl panel (ordered separately)
| Vallox Delico PTD EC control hood, Vallox X-Line PTXP MC control hood, or Vallox X-Line PTXPA MC control hood (ordered separately)

R model in the figure.
In the L model, the parts are mirrored

WARNING!
The unit is not intended for use by children under 8 or by persons with reduced sensory, physical or mental capabilities, or whose lack of knowledge and experience do not ensure safe operation of the unit.  Such persons can use the unit under supervision, or by following the instructions of someone who is responsible for their safety.

USING THE UNIT

FAN SPEED ADJUSTMENT
The fan speed of the Vallox ventilation unit is adjusted using a four-step control (optional).
The available speed options of the control switch are 1, 2, 3, and 4:
1. Away mode. The ventilation efficiency can be temporarily reduced when the apartment is unoccupied.
2-3. Standard mode. In standard mode, the air inside the apartment is replaced once every two hours.
4. Boost mode. Cooking, sauna, bathing, drying of clothes, guests, and other similar situations can require that ventilation be increased from the standard setting.
The fan speed can also be controlled through a separate Vallox control hood (optional), the Vallox ProControl control panel (optional), or directly through voltage messages (0-11,4 V).
ADJUSTING THE SUPPLY AIR TEMPERATURE AND SUMMER/WINTER FUNCTION
The temperature of the air blown into the apartment can be adjusted approximately between +10°C and +30°C. The unit has an automatic summer/winter function (a bypass flap).

• When the adjusted temperature is between +10°C and +30°C, the heat recovery cell is not bypassed, i.e. the unit is in winter mode.
• In the OFF position, the unit is in the summer mode, i.e. post-heating is turned off and the heat recovery cell is bypassed when the outdoor temperature is above +14°C. The heat recovery will be turned on when the outdoor temperature falls below +12°C.
• In the AUTO position, the unit will operate as follows around the year: The default post-heating setting is +17°C. The unit will bypass the heat recovery cell when the temperature of the outdoor air exceeds +14°C. The heat recovery will be turned on when the outdoor temperature falls below +12°C. During the bypass, post-heating is turned off.
  

The winter function of the ventilation unit
The limit value has been set in the factory for freezing of the heat recovery cell. When this limit value is exceeded, the ventilation unit starts to defrost the heat recovery cell by directing the outdoor air past the heat recovery cell.
The duration of the defrost cycle is 15-45 min depending on the amount of ice accumulated in the heat recovery cell and on the extract air flow. The factory settings ensure optimal operation in standard living and detached house conditions. Even though the winter operation parameters can be adjusted for certain extreme conditions, such as swimming pool facilities, it is always advisable to contact Vallox maintenance services.
FIREPLACE SWITCH
A switch with timer functions can be connected to the unit. The switch stops the extract air fan when the fireplace is being used. NOTE! Starting up the extract air fan can reduce the draw of the fireplace! In winter, this can disturb the winter mode of the ventilation unit. The situation will return to normal soon after the fireplace mode is turned off.
ADJUSTING THE SUPPLY AND EXTRACT AIR RATIO
This function might be needed when the air flows are adjusted at the valves during installation. The user does not need to adjust this function once the valves have been adjusted, and indeed should not adjust it at all. A potentiometer can be used to reduce the supply or extract air flow as required.
When the potentiometer is set roughly in the centre position, neither the supply nor the extract air flow has been reduced. When the potentiometer is turned anti-clockwise, the supply air flow is reduced, and when the potentiometer is turned clockwise, the extract air flow is reduced.
MAINTENANCE REMINDER
If a signal light is connected to the connectors of the unit’s error relay, the unit will send a reminder of service need every six months,. If connected, the signal light will flash every second. Sounds made by the relay can then be heard from inside the unit. The maintenance reminder will be set off automatically when the door of the ventilation unit is opened or the power is turned off.
The maintenance reminder can also be set off manually.
Vallox Simple Control panel, and Vallox X-Line PTXP MC and PTXPA MC control hoods, VAK 0-10 VDC:

• The low speed is turned on, then higher-lower-higher
  – Low speed under 4 V
  – High speed over 6 V
  – The selected speed will always be turned on for 1-5 seconds

Vallox Delico PTD EC control hood:

• The damper is closed, then open-closed-open
• Press at a 1-5 second interval.

The service reminder will only be set off if it has been activated. Refer to the maintenance instructions for the necessary maintenance measures.

MAINTENANCE

TROUBLESHOOTING TABLE
If the ventilation unit is affected by any of the errors listed in the table, the unit will report the error through the error relay, signal light, and circuit board LEDS. The number of flashes indicates the nature of the error.
The error relay can be connected to remote monitoring.
NOTE! When remote monitoring is used, the signal light of the control panel cannot be turned on.

TROUBLESHOOTING

Flashing LED| Problem| Correction
1| NTC sensor of the supply air from the cell is faulty| Check the sensor and the wires, replace as required
2| NTC sensor of the extract air is faulty| Check the sensor and the wires, replace as required
3| NTC sensor of the extract air is faulty| Check the sensor and the wires, replace as required
4| NTC sensor of the exhaust air is faulty| Check the sensor and the wires, replace as required
5| NTC sensor of the outdoor air is faulty| Check the sensor and the wires, replace as required
6| The supply air fan has stopped.| Check the wiring of the fan, replace the fan as required
7| The extract air fan has stopped.| Check the wiring of the fan, replace the fan as required
8| EEPROM is faulty| Replace the circuit board

BEFORE BEGINNING MAINTENANCE WORK
The safety switch (S) automatically turns off the power when the door of the Vallox TSK Multi 50/80 MC ventilation unit is opened. Always disconnect the power plug before starting the Vallox TSK Multi 50/80 MC ventilation unit maintenance. FILTERS
When the maintenance reminder becomes activated, check the cleanliness of the filters and replace them if required. The Vallox ventilation unit has three air filters:

• Coarse filter for supply air (A) filters insects, heavy pollen and other relatively large foreign objects out of the outdoor air.
• Fine filter for supply air (B) filters microscopic pollen and dust particles out of the supply air.
• Coarse filter for extract air (C) filters the extract air and keeps the heat recovery cell clean.

Using original Vallox filters ensures the best operation of the ventilation unit and the best filtering results. The filter replacement interval depends on the ambient dust concentration. It is recommended that the filters be replaced every spring and autumn, or at the very least once a year.
HEAT RECOVERY CELL
Check that the heat recovery cell (D) is clean roughly once a year when the filters are being replaced. Clean by washing as required.

• Pull the coarse filters including the frames out of the unit (A and C). Also remove the fine filter, if any (C).
• Remove the sealing strip (E) above the heat recovery cell in the direction of the arrow.
• Once you have removed the sealing strip, pull the heat recovery cell out of the unit.

IMPORTANT! Handle the cell carefully! For example, do not lift the cells by the layers. The cell layers are very thin and easily damaged.
If the heat recovery cell is dirty, clean it by immersing it in water containing a small amount of a mild detergent. Rinse the heat recovery cell clean with a water spray. When all the water has drained from between the layers, push the cell recovery cell back in place. Lastly, push the sealing strip back in place.
CONDENSING WATER
In the heating season, the extract air humidity condenses to water. In new buildings, condensation runoff can form rapidly. Condensed water must be able to freely leave the unit. At some time before the heating season begins (e.g. during autumn maintenance), check that the condensing water outlets in the bottom pool are not clogged. To check this, pour some water into the pool. Clean as required. Water must at all times be kept out of the electrical system.
See the condensing water connections on page 15. Fans
Check the cleanliness of the fans when servicing the filters and the heat recovery cell. Clean the fans as required. Fans can be removed from the unit for cleaning. The fan blades can be cleaned with compressed air or by brushing them gently. Do not remove or move the fan blade balancing weights.
Removing the supply and extract air fan
Before the supply and extract air fans are removed, the filters and the heat recovery cell of the unit must be removed as described above. Fan beds and the bypass duct must be removed and reinstalled carefully in accordance with the below instructions to  revent damage. The small size of the unit restricts the space available for servicing. Removing the supply air fan, right-handed model
(The steps are mirrored for the left-handed unit)

1. Remove the mounting screw of the fan bed.

2. Pull the bypass duct/ filter stand package out of the unit and turn to the right.

3. Disconnect the cable of the bypass damper motor.

4. Tilt the supply air fan to the right and push the connectors out of the way.

5. Turn the fan 90° and tilt it forward to pull it out of the unit.

Removing the extract air fan, right-handed model
(The steps are mirrored for the left-handed unit)

1. Remove the mounting screw of the fan bed.

2. Remove the connector package from the wall.

3. Separate the connectors from each other.

4. Tilt the fan to the left and turn 90°.

5. Tilt the fan forward to pull it out of the unit.

Install the fan beds in a reverse order.

TECHNICAL SPECIFICATIONS

Air flow measurement points
Measurement points after the outlet collar. The fan curves indicate the total pressure accounted for by duct losses.

TECHNICAL SPECIFICATIONS

Product title
Vallox TSK Multi 50 MC R
Vallox TSK Multi 50 MC L| Product number
3462600
3462700
Air volumes
Supply air
Extract air| 47 dm3/s, 100 Pa
56 dm3/s, 100 Pa
Electrical connection| 230 V, 50 Hz, 4.5 A power plug
Enclosure protection class| IP 34
Post-heating| Electric resistor, 900 W
Preheating| —
Additional heating| —
Fans
Supply air
Extract air| 0.043 kW 0.32 A EC
0.043 kW 0.32 A EC
Specific energy consumption (SEC)
in a cold climate
in a temperate climate| A+ B
Operating efficiencies*
Annual efficiency
Supply air efficiency
Specific Fan Power (SFP)| 79 %
86 %
1.3 kW/m3/h (34 dm3/s)
Filters
Supply air
Extract air| ISO Coarse > 75 %+ ISO ePM1
ISO Coarse > 75 %
Heat recovery bypass| Automatic
Dimensions (w x h x d) and weight| 900 x 236 x 547 145 kg

*Working point defi ned in the Ecodesign Directive (2009/125/EC), Southern Finland, Helsinki-Vantaa TRY year 2012.

Fan input power

Supply/extract air volumes

Main parts

1 Supply air fan
2 Extract air fan
3 Post-heating radiator, electrical, 900W (behind the supply air fan)
4 Heat recovery cell
5 Fine filter for supply air
6 Coarse filter for supply air| 7 Coarse filter for extract air
8 Bypass damper of the HR cell
9 Safety switch
10 Adjusting the supply and extract air ratio
11 Adjusting the supply air temperature and summer/winter function
---|---

Dimensions and duct outlets
R model:

1. Outdoor air to the unit
2. Supply air to the apartment
3. Extract air from the apartment to the unit
4. Exhaust air out
   

L model:

1. Extract air from the apartment to the unit
2. Exhaust air out
3. Outdoor air to the unit
4. Supply air to the apartment

SOUND VALUES

| Sound power level in the supply air duct (one duct) by octave band Lw, dB
Adjustment position / air fl ow| Sound power level in the extract air duct (one duct) by octave band Lw, dB
Adjustment position / air fl ow
Adjustment position N)| 3,2| 4,1| 5,1| 6,3| 7,2| 8,3| 9,2| 10| 11,5| 3,2| 4,1| 5,1| 6,3| 7,2| 8,3| 9,2| 10| 11,5
Air flow (dm3/s| 6| 10| 17| 21| 26| 32| 35| 40| 44| 7| 14| 22| 24| 30| 35| 40| 45| 48
Frequency of the octave band Hz| 63| 59| 66| 70| 72| 74| 79| 78| 79| 81| 55| 59| 61| 64| 67| 76| 72| 72| 73
125| 57| 62| 64| 66| 69| 71| 73| 76| 76| 57| 60| 62| 66| 68| 70| 72| 74| 77
250| 47| 55| 62| 66| 68| 69| 71| 73| 73| 39| 47| 55| 60| 61| 62| 63| 65| 67
500| 36| 44| 50| 55| 59| 63| 66| 68| 70| 26| 33| 38| 42| 47| 52| 55| 57| 57
1000| 29| 39| 45| 50| 54| 59| 61| 63| 65| 21| 29| 34| 38| 42| 45| 48| 50| 52
2000| 21| 29| 39| 45| 50| 53| 56| 58| 60| 13| 15| 22| 27| 32| 35| 37| 39| 41
4000| 18| 19| 24| 32| 40| 46| 50| 53| 55| 17| 17| 18| 18| 21| 25| 28| 32| 34
8000| 21| 21| 22| 23| 26| 31| 36| 40| 43| 21| 22| 21| 21| 22| 22| 22| 22| 23
LW, dB| 62| 67| 71| 74| 76| 80| 80| 81| 83| 59| 62| 65| 69| 71| 77| 75| 77| 79
LWA, dB(A)| 44| 51| 56| 60| 63| 66| 68| 72| 72| 41| 45| 50| 54| 56| 58| 60| 62| 64
| Sound pressure level coming through the envelope of the unit in the room in which it is installed (10m2 sound absorption) Adjustment position / air flow (supply/extract) dm3/s
Adjustment position N)| 3,2| 4,1| 5,1| 6,3| 7,2| 8,3| 9,2| 10| 11,5
Air flow (dm3/s)| 6/7| 12/14| 19/22| 22/25| 27/30| 31/34| 35/40| 41/45| 44/48
LpA, dB (A)| 23,8| 28,8| 34,6| 38,4| 40,4| 44,6| 46,7| 48,9| 50,2

Air flow measurement points
Measurement points after the outlet collar. The fan curves indicate the total pressure accounted for by duct losses.

TECHNICAL SPECIFICATIONS

Product title
Vallox TSK Multi 50 MC R
Vallox TSK Multi 50 MC L| Product number
3478000
3478100
Air volumes
Supply air
Extract air| 85 dm3/s, 100 Pa
91 dm3/s, 100 Pa
Electrical connection| 230 V, 50 Hz, 8.8 A power plug
Enclosure protection class| IP 34
Post-heating| Electric resistor, 900 W
Preheating| —
Additional heating| Electric resistor, 900 W
Fans
Supply air
Extract air| 0.081 kW 0.65 A EC
0.081 kW 0.65 A EC
Specific energy consumption (SEC)
in a cold climate
in a temperate climate| A+
B
Operating efficiencies*
Annual efficiency
Supply air efficiency
Specific Fan Power (SFP)| 79 %
86 %
1.3 kW/m3/h (34 dm3/s)
Filters
Supply air
Extract air| ISO Coarse > 75 %+ ISO ePM1
ISO Coarse > 75 %
Heat recovery bypass| Automatic
Dimensions (w x h x d) and weight| 1026 x 293 x 626 | 58.5 kg

*Working point defi ned in the Ecodesign Directive (2009/125/EC), Southern Finland, Helsinki-Vantaa TRY year 2012.
Fan input power

Supply/extract air volumes Main parts

1 Supply air fan
2 Extract air fan
3 Post-heating radiator, electrical, 900W (behind the supply air fan)
4 Heat recovery cell
5 Fine filter for supply air
6 Coarse filter for supply air| 7 Coarse filter for extract air
8 Bypass damper of the HR cell
9 Safety switch
10 Adjusting the supply and extract air ratio
11 Adjusting the supply air temperature and summer/winter function
---|---

Dimensions and duct outlets
R model:

1. Outdoor air to the unit
2. Supply air to the apartment
3. Extract air from the apartment to the unit
4. Exhaust air out
   

L model:

1. Extract air from the apartment to the unit
2. Exhaust air out
3. Outdoor air to the unit
4. Supply air to the apartment

SOUND VALUES

| Sound power level in the supply air duct (one duct) by octave band Lw, dB Adjustment position / air flow| Sound power level in the extract air duct (one duct) by octave band Lw, dB Adjustment position / air flow
Adjustment position (V)| 3,2| 41| 51| 6,3| 7,2| 8,3| 9,2| 10,0| 10,7| 11,5| 3,2| 41| 5,1| 6,3| 7,2| 8,3| 9,2| 10,0| 10,7| 11,5
Air flow (dm3/s)| 15| 20| 32| 37| 47| 57| 62| | | 65| 17| 22| 36| 42| 51| 60| 66| | | 67
Fre- quency of the octave band
Hz| 63| 60| 67| 68| 72| 73| 79| 79| | | 78| 54| 58| 59| 63| 66| 78| 70| | | 73
125| 56| 65| 64| 66| 68| 70| 72| | | 73| 48| 56| 54| 56| 58| 62| 63| | | 64
250| 51| 58| 67| 70| 74| 78| 76| | | 76| 43| 50| 61| 59| 61| 63| 65| | | 64
500| 41| 49| 55| 59| 63| 66| 70| | | 70| 30| 37| 43| 46| 49| 53| 60| | | 60
1000| 39| 47| 52| 55| 58| 62| 65| | | 66| 27| 35| 39| 43| 46| 50| 52| | | 53
2000| 30| 41| 48| 52| 56| 59| 62| | | 62| 15| 23| 29| 33| 37| 40| 42| | | 43
4000| 19| 28| 36| 42| 46| 51| 54| | | 55| 17| 17| 18| 21| 25| 29| 31| | | 32
8000| 21| 22| 28| 35| 42| 48| 52| | | 53| 21| 21| 21| 21| 22| 23| 25| | | 26
LW, dB| 61| 70| 72| 75| 77| 82| 82| | | 81| 55| 61| 64| 65| 68| 78| 72| | | 74
LWA, dB(A)| 46| 55| 61| 64| 68| 72| 72| | | 75| 38| 45| 53| 52| 54| 58| 61| | | 61
| Sound pressure level coming through the envelope of the unit in the room in which it is installed (10m2 sound absorption)
Adjustment position / air flow (supply/extract) dm3/s
Adjustment position (V)| 3,2| 41| 51| 6,3| 7,2| 8,3| 9,2| 10,0| 10,7| 11,5
Air flow (dm3/s)| 15/17| 33/39| 32/36| 38/42| 47/51| 19/20| 62/67| | | 65/67
LpA, dB (A)| 26,9| 33,2| 40| 431| 46,3| 49,7| 51,5| | | 521

ELECTRICAL CONNECTION

EXTERNAL ELECTRICAL CONNECTION
With Vallox Delico PTD EC control hood with the Vallox Simple Control control panel / Vallox PTXP MC, Vallox PTXPA MC cooker hoodwith Vallox ProControl control panel

Wiring between the control panel and the ventilation unit, NOMAK 2x2x0.5+0.5

Ventilation unit cable| Control panel connector
S| Y1
+| leave disconnected
–| GO
LED| S/DI2

The phase of 24 VAC feed is connected to the control panel connector G and the neutral to the connector G0

CONTROL PANEL

G| 24 VAC feed| S/D12| Error relay
GO| 0 VAC| GO| 0 VAC
Y1| 10 V, control voltage of the ventilation unit| |
Y2| | |
Dll| Boost at the cooker hood| |
Al| 24 VAC 1 A, intermediate relay control| |
Y3| | |
A2| | |
Y4| | |
U1| 0…10 V, humidity boost| |
A+| RS-485| |
| RS-485| |
C| RS-485 Common| |

with an external control panel

INSTALLATION

INSTALLATION SITE
Vallox TSK Multi 50/80 MC must be installed in a location where the temperature remains above +10°C. When the unit is installed without a protective enclosure, the location must be chosen so that its noise does not cause any disturbance. Such locations include storage premises and technical spaces.
Important! The whole length of the outdoor air duct to the unit and exhaust air duct from the unit must be insulated using closed cell insulation.
Mounting
The Vallox TSK Multi 50/80 MC is normally installed on the ceiling using the four mounting hooks delivered with the unit. The weight of the unit (45 kg) must be taken into account when mounting the unit.
Wall structure
The wall structure must be observed in the mounting. Avoid mounting the unit on hollow, echoing intermediate walls and on bedroom walls, or take measures to prevent conduction of noise.
CONDENSING WATER
The delivery includes a water seal and an elbow for connecting the pipe that leads the water condensed from the extract air to the floor drain (not directly into the sewer). The pipe must not rise after the water seal. See the accessory bag for further instructions on the installation of the water seal and the elbow.

EXPLODED VIEW AND PARTS LIST

3473400
5. Supply/extract air fan assembly, R and L model (Vallox TSK Multi 80 MC)| 3482900
6. Fan (Vallox TSK Multi 50 MC)| 935385
6. Fan (Vallox TSK Multi 80 MC)| 935490
7. Bypass duct assembly, R model (Vallox TSK Multi 50 MC)| 3432700
7. Bypass duct assembly, L model (Vallox TSK Multi 50 MC)| 3551300
7. Bypass duct assembly, R model (Vallox TSK Multi 80 MC)| 3479500
7. Bypass duct assembly, L model (Vallox TSK Multi 80 MC)| 3551400
8. Damper actuator, L model| 930620
8. Damper actuator, R model| 930621
9. Safety switch| 948370
10. Motherboard| 949032
11. NTC sensor kit| 3494100
12. Post-heating radiator, R model| 942210
12. Post-heating radiator, L model| 942211
12B. Additional heating radiator, R model (Vallox TSK Multi 80 MC)| 942210
12B. Additional heating radiator, L model (Vallox TSK Multi 80 MC)| 942211
13. Side sealing strip of the heat recovery cell (Vallox TSK Multi 50 MC)| 3356300
13. Side sealing strip of the heat recovery cell (Vallox TSK Multi 80 MC)| 3352600
14. Upper sealing strip of the heat recovery cell (Vallox TSK Multi 50 MC)| 3463400
14. Upper sealing strip of the heat recovery cell (Vallox TSK Multi 80 MC)| 3488700
15. Filter stand (Coarse, supply) 500mm (Vallox TSK Multi 50 MC)| 3356400
15. Filter stand (Coarse, supply) 580mm (Vallox TSK Multi 80 MC)| 3352700
16. Filter stand (Coarse, extract) 400mm (Vallox TSK Multi 50 MC)| 3382800
16. Filter stand (Coarse, extract) 450mm (Vallox TSK Multi 80 MC)| 3368500
17. Coarse filter for supply air (Vallox TSK Multi 50 MC)| 978036
17. Coarse filter for supply air (Vallox TSK Multi 80 MC)| 3326700
18. Coarse filter for extract air (Vallox TSK Multi 50 MC)| 978035
18. Coarse filter for extract air (Vallox TSK Multi 80 MC)| 3379700
19. Fine filter for supply air (Vallox TSK Multi 50 MC)| 978136
19. Fine filter for supply air (Vallox TSK Multi 80 MC)| 978135
20. Plug (Vallox TSK Multi 50 MC)| 990630
20. Plug (Vallox TSK Multi 80 MC)| 990640
21. Cover panel 100mm (Vallox TSK Multi 50 MC)| 3363500
21. Cover panel 125mm (Vallox TSK Multi 80 MC)| 3363600
22. Water seal Vallox Silent Klick| 3494700
23. Connection box assembly| 3526700
24. MyVallox humidity sensor (optional)| 946149
25. MyVallox carbon dioxide sensor (optional)| 949111

Vallox TSK Multi 50 MC
Vallox filter package no. 25. …………………………… 3570200
Vallox TSK Multi 80 MC
Vallox filter package no. 26. …………………………… 3356800

© Vallox – All rights reserved
www.vallox.com
Vallox Oy
Myllykyläntie 9-11
32200 LOIMAA
FINLAND
D2585
20.06.2022

References

• Etusivu - Vallox

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