69
Opening the heat pump
Danger
Contact with 'live' components
can lead to serious injury from
electric current.
■
Never touch
the wiring cham-
bers (for heat pump control unit
and power supply connections,
see page 34).
■ When working on the appli-
ance, isolate the system from
the power supply, e.g. at a sep-
arate MCB/fuse or a mains iso-
lator. Check the system is no
longer 'live' and safeguard
against reconnection.
Danger
The absence of component
earthing can result in serious
injury from electrical current and
in component damage in the
event of an electrical fault.
Always
remake all earth connec-
tions.
!
Please note
Wait
at least 30 min
between the
installation and commissioning of
the appliance to prevent equip-
ment damage.
Work on the
refrigerant circuit
must only be carried out by a
qualified
refrigeration engi-
neer
.
1.
Remove front panel in reverse order;
see page 65.
2.
When work is complete, close the
heat pump; see page 65.
For commissioning the appli-
ance, see also the
"Vitotronic 200 heat pump control
unit" operating instructions.
Writing reports
Enter the readings taken during commis-
sioning (described in the following) into
the reports from page 115 onwards.
Commissioning, inspection, maintenance
Further details regarding the individual steps
5546 267 GB
Service
