Bosch DOMESTIC HOT WATER HEAT PUMP Technical Manual page 43

Descaling process:
- Close cold water inlet and open hot water tap to take out pressure from the top of the heat pump;
- Remove connection in the top of the condenser plate heat exchanger to allow the outlet of the water
and then, remove the connection in the bottom;
- Connect flexible connection of the pump already with the liquid
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Pict.49 – Kaloxi descaling liquid to clean plate heat exchangers
Pict.50 – Unscrew water connections to the condenser plate heat exchanger
6720649497 SM HP270-1 2012/09 en