56
Danger
Touching 'live' components and their contact
with water can result in serious injury due to
electric shock.
■
Isolate the external unit from the power supply
and safeguard against reconnection.
■
Protect the external unit against moisture.
Danger
Contact with the fans while they are operating
can result in serious cutting injuries.
■
Isolate the external unit from the power supply
and safeguard against reconnection.
■
Do not open the appliance until the fan has
come to a stop.
Cleaning with compressed air
1.
Open the external unit casing.
Danger
The sharp edges of the heat exchanger
(evaporator) can cause injuries.
Avoid contact.
2.
!
Please note
Excessive air pressure from the front and
sides can result in the deformation of the alu-
minium fins of the heat exchanger.
Only point the compressed air gun at the
heat exchanger from the front and from an
adequate distance.
Clean the heat exchanger
from the inside out
with
compressed air.
3.
Check the aluminium fins of the heat exchanger for
deformation and scratches. If necessary, repair with
a suitable tool (e.g. fin comb).
4.
Close the external unit casing.
Checking thermal insulation of flared connections
Checking electrical connections of the external unit for firm seating
Danger
Contact with 'live' components can lead to seri-
ous injury from electric current. Some compo-
nents on PCBs remain 'live' even after the
power supply has been switched off.
■
When working on the external unit, isolate the
system from the power supply, e.g. at a sepa-
rate MCB/fuse or a mains isolator. Check the
system is no longer 'live' and safeguard
against reconnection.
■
Prior to working on the appliance, wait at
least 4 min until the voltage has completely
dropped out.
Closing the heat pump
See page 47.
Switch ON the power
Switching on the mains power at the main MCB/fuse.
Commissioning, inspection, maintenance
Cleaning the external unit heat exchanger (evaporator)
5700 582 GB
