SERVICING AND SPARES
6 720 812 175 (2014/07) 49
27. CH PRESSURE RELIEF VALVE
▶ Remove the Hydraulic block from the boiler
(26. Hydraulic block).
1. Remove the spring clip from the Pressure relief valve housing.
2. Withdraw the pressure release valve (A) from its housing.
▶ To refit, follow the above in reverse.
▶ Ensure any seals that have been disturbed are renewed.
Fig. 94
2.
1.
A
6 720 812 175-25.1O
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