Checking plate heat exchanger
C
DHW
D
Cold water
E
Heating water return
F
Heating water flow
1.
Switch OFF the mains power.
2.
Close the gas shut-off valve and
safeguard against reopening.
3.
Shut off and drain the boiler on the
primary and the secondary side.
Draining on the primary side (see
page 74).
4.
Flip down control unit.
5.
Remove two screws
A
at the plate
heat exchanger and
B
remove.
Note
During removal, small amounts of
water may trickle out and escape
from the removed plate heat
exchanger.
6.
Check the secondary side for con-
tamination and, if necessary, clean
or replace the plate heat exchan-
ger.
7.
Check the primary side for contami-
nation and, if necessary, clean or
replace the plate heat exchanger.
Repairs
(cont.)
80
Troubleshooting
58
62
670
GB
Содержание Vitodens 100
Страница 41: ...Opening the control unit housing Electrical connections 41 Installation 5862 670 GB Installation ...
Страница 82: ...A1 Main PCB A2 Programming unit Connection and wiring diagrams combi boiler 82 Designs 5862 670 GB ...
Страница 84: ...A1 Main PCB A2 Programming unit Connection and wiring diagram system boiler 84 Designs 5862 670 GB ...
Страница 88: ...Parts lists cont 88 Parts lists 5862 670 GB ...
Страница 89: ...Parts lists cont 89 Parts lists 5862 670 GB Service ...
Страница 90: ...Parts lists cont 90 Parts lists 5862 670 GB ...
Страница 91: ...Parts lists cont 91 Parts lists 5862 670 GB Service ...
Страница 95: ...95 5862 670 GB ...