Opening The Control Unit - Viessmann VITOTRONIC 300 Installation And Service Instructions Manual

Installation sequence

Opening the control unit

1.
Fig. 7
Inserting cables and applying strain relief
Control unit fitted to the boiler:
■
Route cables from below through the boiler front
panel, into the control unit wiring chamber.
■ Control unit fitted on the side of the boiler:
Route cables from below out of the cable channel
into the control unit.
B
Fig. 8
Cables with moulded strain relief
A
On-site cables; strip up to 100 mm insulation.
B
22
2.
3.
A