Replacing The Non-Return Valve - REMEHA Calenta 25s Installation And Service Manual

Calenta 25s - 28c - 35s - 40c
4
2x
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X91
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2x
040412 - 7600585-01
7.4.4.

Replacing the non-return valve

Replace the nonreturn valve when faulty or when the maintenance kit
contains one. To do this, proceed as follows:
1. Remove the air inlet flue on the venturi.
2. Unscrew the top connection on the gas valve unit.
3. Disconnect the connector located under the fan.
4. Release the 2 clips holding the fan/mixing elbow unit in place on
the heat exchanger.
5. Completely remove the fan/mixing elbow unit.
6. Replace the non-return valve located between the mixing elbow
and the fan.
7. To re-assemble, perform the above actions in reverse order.
T002517-B
7. Checking and maintenance
83