Checking The Electrical Connections For Firm Seating; Closing The Heat Pump; Switching The Power On; Commissioning The System - Viessmann VITOCAL 242-G Installation And Service Instructions Manual

Replacing the magnesium anode
!
Please note
A short circuit between the magnesium anode
and the internal indirect coil negates the protec-
tive effect of the magnesium anode. This leads
to corrosion damage on the DHW cylinder.
Before connecting the electrical cables, check
the resistance across terminals
Fig. in chapter "Cleaning the DHW cylinder"). If
the resistance is significantly less than infinity,
check whether the magnesium anode is touch-
ing the internal indirect coil.

Checking the electrical connections for firm seating

Closing the heat pump

See page 37.

Switching the power on

Switch on the mains power at the main MCB/fuse.

Commissioning the system

Commissioning (configuration, parameter settings and
function check) can be carried out with or without the
commissioning wizard (see following chapter and serv-
ice instructions for the heat pump control unit).
Commissioning with the commissioning assistant
The commissioning assistant automatically guides you
through all the menus where settings have to be made.
For this, "Coding level 1" is automatically active.
!
Please note
Incorrect operation at "Coding level 1" may
result in damage to the appliance and the heat-
ing system.
Observe the service instructions for the
"Vitotronic 200", otherwise the appliance war-
ranty will be void.
(cont.)
and (see
A B
Note
The type and extent of the parameters depend on the
appliance type, on the selected system scheme and
the accessories employed.
Commissioning, inspection, maintenance
43