Checking the plate-type heat exchanger
1.
Remove cover panel
A
.
2.
Shut off the heating water side of
the compact boiler.
3.
Close the on-site shut-off valve.
4.
Drain the boiler on the DHW side
via drain valve
B
.
5.
Drain the system on the heating
water side via drain valve
C
.
6.
Undo fittings
D
.
7.
Pull the locking bracket from plug-
in connectors
E
and pull the con-
nections on the heating water
side.
Repairs
(cont.)
106
Troubleshooting
5592
883
GB
Содержание VITODENS 343-F WS4A
Страница 105: ...3 Replace the sensor in case of severe deviation Repairs cont 105 Troubleshooting 5592 883 GB Service ...
Страница 131: ...A1 Main PCB A2 Main PCB Connection and wiring diagram internal connections II 131 Designs 5592 883 GB Service ...
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