Further Details Regarding The Individual Steps; Filling The Heating System - Viessmann VITODENS 050-W Installation And Service Instructions Manual

Further details regarding the individual steps

Filling the heating system

!
Please note
Unsuitable fill water increases
the level of deposits and corro-
sion and may lead to boiler
damage.
■ Flush the heating system thor-
oughly before filling.
■ Only fill with water of potable
quality.
Commissioning, inspection, maintenance
■ Fill water with a hardness
above 300 ppm must be soft-
ened.
■ Special antifreeze suitable for
heating systems can be
added to the fill water.
1. Close the gas shut-off valve.
2. Switch on the power supply at
ON/OFF switch A.
3. Activate the filling function.
1. Press MODE and
ously and hold for approx. 3 s.
"SERV" is displayed and "1"
flashes.
2. OK to confirm.
"0" flashes on the display.
3. Use / to set "I"
4. OK to confirm.
The filling function is active.
Note
The function is terminated by reset-
ting the value to "0" or by turning
off the ON/OFF switch.
The function will terminate automat-
ically after 30 min.
simultane-
27