Matching The Circulation Pump To The Heating System - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Further details regarding the individual steps

Matching the circulation pump to the heating system

Only for gas condensing combi boilers:
In the delivered condition, the circulation pump in heating mode is set to stage 1. If
necessary to suit the heating system, the circulation pump can be adjusted to stage
2.
Commissioning, inspection, maintenance
4. Test selected heating output by
5. Transfer selected heating output:
6. Shut down the boiler.
1. Turn ON/OFF switch ON.
2. Simultaneously turn rotary selectors
r
(cont.)
measuring the gas throughput.
Turn rotary selector "tw" fully clock-
wise for less than 2 s and then back
to the control range on the right.
During the transfer, "– – . –" appears
on the display.
"tw" and "tr" to their central posi-
tions.
"SERV" appears on the display.
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