Maintenance Instructions; Troubleshooting - Vallox TSK Multi 50 MC Operating & Maintainence Instructions

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
blinks
1 Supply air sensor after the HR cell is faulty Check the sensor and conductors, replace if needed
2
Extract air sensor is faulty
3 Supply air sensor is faulty
4 Exhaust air sensor is faulty
5
Outdoor air sensor is faulty
6 Supply air fan has stopped
7 Extract air fan has stopped
8
EEPROM faulty
MAINTENANCE
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.
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
Repair
Check the sensor and conductors, replace if needed
Check the sensor and conductors, replace if needed
Check the sensor and conductors, replace if needed
Check the sensor and conductors, replace if needed
Check the wiring of the fan, replace the fan if needed
Check the wiring of the fan, replace the fan if needed
Replace the circuit board of the unit with a new one
T
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, out-
door comes from the left side of the unit. The fi lters, summer/winter damper
and heating radiator also change places correspondingly.
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.
C
B
E
D
Vallox TSK
Multi 50
MC MC MC
80
A
F
3