Observe the flow direction arrows on fittings.
It is important that the ordering of the fittings is correct as per the diagram
1 and 2.
Do not remove the factory fitted pressure and temperature relief valve.
Do not insert any other valves between the 3-way manifold and heater inlet
since it may prevent the safe expansion and discharge of water during heating
cycles.
Make the necessary connections, as per diagram 2, to inlet side of the heater
(as indicated by the blue collar).
It is recommended that the “balanced off take” is used to supply any cold outlet that is
paired to a mixer style tap supplied by the hot feed of the unit.
The orientation of the expansion vessel is important, it should be fixed firmly to the
supplied bracket in a vertical orientation with the water connection at the bottom and
located so that the length of the connecting pipework is kept to a minimum.
A drain cock (not supplied) should be fitted to a branch of the incoming supply pipe
at a point that is lower than both the unit and the expansion vessel (see diagram 1)
in order to allow full drain down for any future maintenance work.
Make the connection to any hot tap from the outlet side of the heater as
(as indicated by the red collar).
5
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