Pivoting down the control unit for commissioning and main-
tenance work
1.
Open flap
A
.
2.
Release the side closures
B
and
pivot control unit
C
forward.
3.
Release the side screws and pivot
control unit
C
down with its retain-
ing frame
D
.
Filling the heating system
!
Please note
Unsuitable fill water increases the level of deposits and corrosion and
may lead to damage on the compact boiler.
&
Thoroughly flush the entire heating system prior to filling it with water.
&
Only use fill water of potable quality.
&
Soften fill water with hardness exceeding 3.0 mmol/l, e.g. use a small
softening system for heating water (see Vitoset price list).
&
An antifreeze additive suitable for heating systems can be mixed with
the fill water.
Further details regarding the individual steps
23
Commissioning, inspection, maintenance
5592
883
GB
Service
Summary of Contents for VITODENS 343-F WS4A
Page 137: ...Parts lists cont 137 Parts lists 5592 883 GB Service ...
Page 138: ...Parts lists cont 138 Parts lists 5592 883 GB ...
Page 139: ...Parts lists cont 139 Parts lists 5592 883 GB Service ...
Page 140: ...Parts lists cont 140 Parts lists 5592 883 GB ...
Page 141: ...Parts lists cont 141 Parts lists 5592 883 GB Service ...
Page 142: ...Parts lists cont 142 Parts lists 5592 883 GB ...
Page 151: ...151 5592 883 GB ...
