Viessmann Vitopend 100-W Installation And Service Instructions For Contractors

29
Checking the diaphragm expansion vessel and system pressure
Check the diaphragm expansion vessel
pre-charge pressure at test connector
A
and recharge if required.
Note
At the top-up valves, the gas combi
boiler can be topped up using key
B
supplied.
B
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5848 649 GB
Service

Viessmann Vitopend 100-W Specifications

General

Fuel Type	Gas
Max. Water Temperature	85 °C
Type	Condensing Boiler
Gas Type	Natural gas / LPG
Efficiency	Up to 98%