Stuart Turner S1.5 bar Twin - Manual (Page 7)

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2 LOCATION - TWIN PUMP
2.27 The cold water supply: Must be a DEDICATED AIR FREE supply via a tank
connector, and must be positioned at a slightly lower level (25 mm minimum) than
the feed pipe to the hot water cylinder.
Do not connect to the mains.
2.28 Location: The pump must, be sited as close as possible to and never more than
4 metres from the HOT WATER cylinder. The pump should always be sited
BELOW the HOT WATER take-off from the cylinder.
Fig. 6
Static inlet pressure Max. 10 m Min. 0.5 m
Outlet head must be
below bottom of cold
water tank and able
to pass a minimum
of 0.8 l/min of gravity
flow