Repairs - Viessmann VITOPEND 200 Installation And Service Instructions Manual
Gas fired combi boiler
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Troubleshooting
Repairs
Checking the plate‐type heat exchanger
A Control
B Comfort sensor
C Plate‐type heat exchanger
D Screws
E Thermal insulation
1. Shut off and drain the boiler on the
primary and the secondary side.
88
F Cold water
G Heating return
K Heating flow
H Hot water
2. Release the side closures and
pivot the control unit A forward.
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