Viessmann Vitopend 100-W Installation And Service Instructions Manual page 40

Troubleshooting
Repairs
(cont.)
4. Install plate heat exchanger D in
reverse order using new gaskets.
Fixing screw torque: 5.5 Nm.
Note
During installation, ensure that fixing
holes are aligned and gaskets seated
correctly.
Mount the plate heat exchanger with
the correct orientation. Observe the
marking "Top".
Checking temperature limiter and sensors
A Temperature limiter
B Boiler water temperature sensor
40
5. Reassemble the boiler in reverse
order.
6. Fill the boiler with water, flush (vent)
and check for leaks.
5
C Outlet temperature sensor (gas
combi boiler)