15
MAINTENANCE
DISCONNECT THE UNIT FROM POWER SUPPLY
BEFORE ANY MAINTENANCE OPERATION WITH THE UNIT.
Maintenance of the ventilator means regular cleaning of the ventilator surfaces of dust and cleaning or replacement of the filters.
To access the basic assembly units follow the steps:
1. Press the latches on the side of the indoor assembly unit to take off the front part.
When re-installing the front panel the thermal actuator rod must be down. If it is uplifted, wait until it goes down about
2 minutes.
While installing the front
panel the thermal actuator
rod must be in low position.
2. Remove the socket connector from the circuit board. While removing the socket connector do not pull the cable. Uplift it with a
flat screw driver of a respective size.
Disconnect the socket con-
nector from the circuit
board.
Use a flat screwdriver to
disconnect the socket
connector.
Do not pull the wires!
3. Pull the cord to remove the cartridge from the air duct. Remove the filters from the cartridge.
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