94
Checking the plate heat exchanger
Fig. 62
1.
Shut off and drain the boiler on the heating water
and DHW sides.
2.
Release side fasteners and pivot control unit for-
ward.
3.
Remove the siphon (see page 38).
4.
Push thermal insulation panel
A
upwards and
remove.
5.
Undo 2 screws
B
and pull out plate heat
exchanger
C
to the front.
6.
Check the connections on the heating water and
DHW side for contamination and scaling; if
required, replace the plate heat exchanger.
7.
Install in reverse order using new gaskets.
Checking the flue gas temperature sensor
The flue gas temperature sensor locks the boiler if the
permissible flue gas temperature is exceeded. After
the flue system has cooled down, press the reset but-
ton
R
to cancel the lock.
Troubleshooting
Maintenance
(cont.)
5773 216 GB
Diagnosis
Содержание B2TA
Страница 12: ...12 2 5 1 4 2x 3 Fig 5 Installing the boiler Removing the front panels 5773 216 GB Installation ...
Страница 13: ...13 1 2 SW17 Fig 6 Installing the boiler Siting and levelling the boiler 5773 216 GB Installation ...
Страница 23: ...23 4 1 5 2 2x 3 Fig 16 Installing the boiler Fitting the front panels 5773 216 GB Installation ...
Страница 101: ...101 Parts lists Overview of assemblies 5773 216 GB Components ...
Страница 107: ...107 Parts lists Hydraulics 5773 216 GB Components ...
Страница 118: ...118 0004 0002 0005 0006 0001 0003 Fig 77 Parts lists Miscellaneous 5773 216 GB Components ...
Страница 142: ...142 5773 216 GB ...
Страница 143: ...143 5773 216 GB ...