Removing The Front Panel - Viessmann Vitodens 100-W B1HF Series Installation And Service Instructions Manual

Removing the front panel

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.
Never touch the wiring chambers (control unit
■
and power supply connections).
When working on the appliance, 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.
3.
2.
Fig. 25
Commissioning, inspection, maintenance
1.
2x
39