Stuart Turner Techflo QT 50T - Manual (Page 7)

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2 LOCATION - TWIN PUMP
2.27 Hot water cylinder or storage tank: When a hot water cylinder or storage tank
is used, ensure the pipework size from the cold water storage to the hot water
storage is of adequate size and a minimum of 22 mm.
2.28 Hot water supply: The pump must be supplied with a dedicated air free feed
direct from the hot water cylinder or storage tank. We recommend the use of the
Techflow top flange Part No 27901 (QT50 & QT80 only) or side flange 27900 (all
models) (Fig. 4). See Section 9 for Terms of Guarantee.
Fig. 4
G 1 Top flange (Part
No. 27901) with 22
mm pipework to
pump.
Static Outlet Pressure Max. 8 m
Static Inlet Pressure Min. 0.5 m Max. 8 m
Positive Duty Twin Pump System
Fig. 3
QT 50 & QT80 ONLY ALL MODELS
Factory installed G ¾
secondary tapping with
22 mm pipework to pump.
or
Side mounted Techflange
(Part No. 27900) with
22 mm pipework to pump.
Outlet head must be
below bottom of cold
water tank and able
to pass a minimum of
1 l/min of gravity flow