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Cont ...
2 LOCATION - GENERAL
2.11
Access:
For emergencies and maintenance the pump must be
easily
accessible.
2.12
Protection:
The pump must be located in a dry position, frost free
and protected from freezing, particularly when installed in a loft (not
recommended).
2.13
Ventilation:
Ensure an adequate air flow to cool the pump. Separate
the pump from other appliances that generate heat. An 80 mm (3 “)
air gap must be maintained around the pump.
2.14
Safety:
The motor casing can become very hot under normal
operating conditions. Care must be taken to ensure it cannot be
touched during operation.
2.15
Water retention:
Site the pump in a location where in the unlikely
event of a water leak, any spillage is contained or routed to avoid
electrics or areas sensitive to water damage.
2.16
Static inlet pressure:
Before deciding where to locate the unit check to ensure
the static inlet head between pump and cold water level (Figs. 2 & 3) is at least
1 metre and does not exceed the max inlet head of 14 metres for the S1.4.
2.17
Ambient temperature:
The pump must be sited in a location where the
maximum ambient temperature does not exceed 40
o
C.
2.18
Pipework:
For optimum performance pipework use 28 mm dia., 22 mm can be
used but will result in reduced pump performance.
Pipework should only reduce to 15 mm when entering terminal fitting.
2.19
Static outlet pressure:
The static outlet head (Figs. 2 & 3) must also be within
the maximum requirement of 14 metres for S1.4.
2.20
Noise:
The anti-vibration mounting feet and flexible hoses which are supplied
as standard, and a precaution to reduce noise transmission, however care must
be taken when mounting the pump that any noise is not amplified through loose
panels or pipework.
Do not screw down the pump
.
2.21
Direction of flow:
Ensure the water flow is in the direction of the arrow marked
on the flow switch reed clamp (vertically upwards).
2.22
Flexible hoses:
Use only Stuart Turner supplied hoses.
2.23
Isolating valves:
Separate isolating valves (non restrictive) must be fitted to
allow easy pump service.
2.24
Preferred pump 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. The pump location is also dependent on limitations of
the static inlet and outlet heads of the installation. For guidance on limitations
and recommended location, consult the following relevant section for hot or cold
water
installation.