Stuart Turner Techflo QT 50TNH - Manual (Page 6)

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2 LOCATION - SINGLE PUMP
2.25 The cold water supply: The supply must be AIR FREE and have a
DEDICATED CONNECTION to the tank which should be via a tank connector,
positioned at a slightly lower level (25 mm minimum) than the feed pipe to the hot
water cylinder.
Do not connect to the mains.
2.26 Location: The pump must, for optimum performance, 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.
Positive Duty Single Pump System
Fig. 3
Static Inlet Pressure see
T
able 1
Static Outlet Pressure see
T
able 1
Table 1
Model Min.
static
inlet
head
(m)
Max.
static
inlet
head
(m)
Max.
static
outlet
head
(m)
QT50
variant
0.5 2.5 2.5
All other
models
0.5 8 8