Checking Static And Supply Pressure - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Installation sequence
Commissioning and testing
Filling the Domestic Hot Water Circuit (Combi boiler only)

Checking static and supply pressure

Danger
CO formation, as a result of incorrect burner adjustment,can lead to
severe health problems.
Carry out a CO test prior to, and after, work on gas equipment.
50
(cont.)
9. Turn rotary selectors "tr" and
"tw" into control range again (turn
selector "tr" only for system boil-
er).
Note
Be aware that the boiler may still
need to be vented as air pockets
are drawn into the heat exchanger.
1. Open the DHW inlet valve A and
outlet valve B.
2. Open all DHW taps in turn to vent
any air from the DHW pipework.