Vallox TSK Multi 50 MC, TSK Multi 80 MC Operating & Maintainence Instructions

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MC

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Vallox TSK

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Multi 50

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80

Low-energy ventilation unit

with heat recovery

Models

TSK Multi 50 MC 3603
TSK Multi 80 MC 3602

MC

© Vallox

1.09.399B EN
Updatet

26.1.2015
Valid from:

26.1.2015

1 Supply air fan

2 Extract air fan

3 Post-heating radiator, electric,
900 W (behind supply air heater)

4 Bypass duct heater, electric,
900 W (only TSK Multi 80 MC,
behind HR cell)

5 Heat recovery cell

6 Outdoor air fi lter F7

7 Outdoor air fi lter G4

8 Extract air fi lter G4

9 Automatic summer/winter damper

10 Safety switch

11 Adjustment of relationship between
supply and extract air

12 Adjustment of supply air
temperature and
summer/winter function

13 Speed selector switch (1-4)
(option)

Operating, maintenance and technical instructions

13

1

12 1011

TECHNICAL DATA

Electrical connection 230 V, 50 Hz, = 4.5 A 230 V, 50 Hz, = 8.8 A
Degree of protection

provided by enclosures
Integrated direct-current fan
Extract air 0.043 kW 0.32 A 57 dm
Supply air 0.043 kW 0.32 A 49 dm
Heat recovery Cross-counter fl ow cell,  > 80% Cross-counter fl ow cell,  > 80%
Heat recovery bypass Automatic Motorised damper
Electric post-heating unit 900 W, 3.9 A max 900 W, 3.9 A
Bypass duct heater - 900 W, 3.9 A
Filters
Supply air G4 + F7 G4 + F7
Extract air G4 G4
Weight 45.0 kg 58.5 kg
Ventilation power adjustment SC controller, 0-10 VDC SC controller, 0-10 VDC

Options SC controller SC controller

9 8 7563

4

VALLOX TSK MULTI 50 MC VALLOX TSK MULTI 80 MC

IP 34 IP 34

3

/s 100 Pa 0.071 kW 0.5 A 93 dm3/s 100 Pa

3

/s 100 Pa 0.071 kW 0.5 A 76 dm3/s 100 Pa

Remote monitoring control 0-10 VDC Remote monitoring control 0-10 VDC

SlimLine PTXP MC cooker hood SlimLine PTXP MC cooker hood
SlimLine PTXPA MC cooker hood SlimLine PTXPA MC cooker hood

2

Vallox TSK

MCMC

Multi 50

80

MC

OPERATING INSTRUCTIONS

Fan speed adjustment

The 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 0–11,4 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
ventilation than in normal operation.

Adjustment of supply
air temperature

Fireplace switch, fl ush
mounting (option)

Supply and extract
air fl ow adjustment
potentiometer

Four-step control switch

Cooker hood PTXPA-MC

Adjustment of supply air temperature and summer/winter
function

The temperature of air coming to the dwelling can be adjusted between circa +10 °C and
+30 °C. The midpoint of the adjustment range is circa +20 °C. When supply air temperature
adjustment has been turned in the OFF position, post-heating is not active. This means that
summer function is activated for the ventilation unit. The unit has a motorised summer/winter
function. When the summer function is on, the heat recovery cell is bypassed as soon as
outdoor air temperature has risen above +14 °C. When outdoor air temperature goes below
+12 °C, the unit starts to recover heat. When supply air temperature adjustment is in the
AUTO position, automatic function is activated for the unit. In this case, the setpoint for post­heating is +17 °C and the heat recovery cell is bypassed automatically according to outdoor
temperatures as indicated above. When the unit bypasses the heat recovery cell, in which
case summer function is activated, post-heating is off.

Fireplace switch function

It 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 unit

A 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 air

This 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 reminder

The 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.

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

Children shall not play with the appliance.

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

2

the hazards involved.

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

What the units include can vary depending on the sales area.

MAINTENANCE INSTRUCTIONS

Troubleshooting

When 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

Problem Repair

blinks

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

1

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

2

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

3

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

4

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

5

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

6

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

7

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

8

Vallox TSK

Multi 50

80

MC

MAINTENANCE

T

Before starting maintenance
operations

When you open the VALLOX TSK Multi 50/80
MC unit, the safety switch of the door (T) turns
power off from the unit. In spite of that, always
disconnect the plug of the VALLOX TSK Multi
50/80 MC unit before starting maintenance
operations.

Filters

When 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 cell

When you replace the fi lters, you are also advised to check the
cleanliness of the heat recovery (HR) cell (D) at about two-year
intervals.

The G4 fi lters and their supports, the sealing ledge (E) above the HR
cell and the side sealing ledge (F) must be pulled off before the cell
can be detached. 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. The correct way to remove the HR cell is to put your
hands behind the HR cell and slowly pull it off. If the HR cell is dirty,
wash it by immersing 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 ledges and fi lters in place.

C A

B

VALLOX TSK Multi 50/80 MC fi lters and heat recovery cell

The units are available as right- and left-handed models. In a right-handed
(model R) model, outdoor air comes to the unit from the right side of the
centre line, as shown in the instructions. In a left-handed (model L) unit, out­door comes from the left side of the unit. The fi lters, summer/winter damper
and heating radiator also change places correspondingly.

E F

D

Detaching of HR cell

Pull the coarse fi lters and their frames out of the unit. Also remove the fi ne
fi lter if it has been used. You can then pull out the sealing ledges situated
on top and on the sides of the HR cell. When the sealing ledges have 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.

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

3

Vallox TSK

Multi 50

80

MC

MAINTENANCE INSTRUCTIONS

Fans

Check the cleanliness of the fans when carrying out maintenance for
the fi lter and the heat recovery cell. Clean the fans if needed. The
fans can be removed from the unit for cleaning. 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.

Unit with HR cell and fi lters removed

Detaching of supply air fan, right-handed unit

(When detaching the supply air fan of a left-hand unit,
reverse the instructions.)

1

1. Unfasten the fi xing screw of the fan
housing.

Detaching of supply and extract air fan

Before detaching the supply and extract air fans, you have to remove
the fi lters and the heat recovery cell of the unit as described earlier.
The detaching and remounting of the fan housings and bypass duct
must be done carefully according to the following instructions in order
to avoid damage. Because the unit is small in size, there is not much
room for maintenance.

Detaching of extract air fan, right-handed unit

(When detaching the supply air fan of a left-hand unit, reverse the
instructions)

1

1. IUnfasten the fi xing screw
of the fan housing.

2. Pull the bypass duct/fi lter
stand bundle out and turn
it to the right.

3. Unfasten the wire of the
bypass damper motor.

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

5. Turn the fan by 90° and
pull it out from the unit,
tilting it forwards.

2

2. Detach the connector
bundle from the wall.

3. Detach the connectors from

3

4

5 5

each other.

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

5. Pull the fan out,
tilting it forwards.

2

3

4

The mounting of the fan housings is carried out in the opposite order.

4

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

What the units include can vary depending on the sales area.