Cleaning The Outdoor Unit Heat Exchanger (Evaporator) - Viessmann VITOCAL 150-A Installation And Service Instructions Manual

Commissioning, inspection, maintenance
Checking that the fan in the outdoor unit can...
1.
2.
Fig. 63
3. Turn the fan by hand.

Cleaning the outdoor unit heat exchanger (evaporator)

Danger
If you touch live components or they come into
contact with water, this can result in serious
injury due to electric shock.
Isolate the outdoor unit from the power supply.
■
Safeguard against unauthorised reconnection.
■ Protect the outdoor unit against moisture.
Danger
Contact with the fans while they are operating
can result in serious cutting injuries.
Isolate the outdoor unit from the power supply.
■
Safeguard against unauthorised reconnection.
■ Do not open the appliance until the fan has
come to a stop.
90
(cont.)
Torque for the screws:
1.8 0.5 Nm
±
Danger
Easily flammable liquids and materials can
cause deflagration and fires; e.g. naphtha/petrol,
solvents, cleaning agents, paints or paper.
Do not use substances containing acids or
■
solvents, such as vinegar-based cleaners, cel-
lulose or synthetic resin thinners, nail varnish
remover, ethyl alcohol, sprays, etc.
■ Do not use substances containing chloride or
ammonia.