Further Details Regarding The Individual Steps; Filling The Heating System - Viessmann Vitodens 100-W WB1B Installation And Service Instructions Manual

Commissioning, inspection, maintenance

Further details regarding the individual steps

Filling the heating system

!
Please note
Unsuitable fill water increases the level of deposits and corrosion and
may lead to boiler damage.
Thoroughly flush the entire heating system prior to filling it with water.
Only use fill water of potable quality.
Soften fill water harder than 150 ppm.
An antifreeze additive suitable for heating systems can be mixed with
the fill water.
18
1. Close the gas shut-off valve.
2. Switch ON the power.
3. Turn rotary selector "rt" antic-
lockwise for less than 2 s and then
clockwise back to the control range
on the right.
Filling function is enabled. This
function will end automatically after
20 min or after ON/OFF switch has
been turned OFF.