Stuart Turner Techflo Turbo 15T - Manual (Page 6)

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Cont ...
The following method will help to overcome the problem:
A “U” bend or downward loop in the supply pipe to the pump of 350 mm depth
before rising to the pump should ensure the cylinder vents its air up the
expansion pipe, not up the pump feed (Fig. 2 for Singles and Fig. 3 for Twins).
2 LOCATION - SINGLE PUMP
Positive Duty Single Pump System
Fig. 4
Outlet head must be
below bottom of cold
water tank and able
to pass a minimum
of 0.6 l/min of gravity
flow
Max. inlet head
14
m
Min. inlet head
0.5
m
Max. static inlet pressure
14
m
Max. inlet head
14
m
Min. inlet head
0.5
m
hot water
services hot water
services
least preferred area least preferred area
200
mm
min
200
mm
min
350
mm
min 350
mm
min
Fig. 3 (Twin Pump) Fig. 2 (Single Pump)