Potable Pipework - Samsung HHSM-G500005-1 Installation Manual

7
Smart Plumb Compact Installation

Potable Pipework

Fitting the Inlet Control Group
Excess pressure can lead to the cylinder bursting. The inlet control set supplied has an expansion relief
valve with a 15mm connection to allow it to be connected to a tundish. Make sure that there is enough
space for future maintenance and for connection of the discharge pipe for the expansion relief valve.
It is essential that this connection is not covered or closed.
Balanced Cold Connection
Potable Expansion Vessel
The expansion vessel receives the increased water volume when expansion takes place as the system
heats up and it maintains a positive pressure in the system. The expansion vessel contains a flexible
diaphragm, which is initially charged on one side with nitrogen, but can be topped up with air when
required. Select a suitable position for the expansion vessel. Mount it to the wall using the bracket
provided (0-24L only, 35L and above are floor standing) and hard fix into pipework and insulate. En-
sure that the top of the vessel is accessible for servicing. The pipe connecting the expansion vessel
to the system should have a diameter of not less than 15mm and must not contain any restrictions.
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PRV
Balanced Cold
Supply