Stuart Turner Techflo Turbo 15TNH - Manual (Page 5)

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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: If possible 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. 5 or 6) is at least
0.5 metres and does not exceed the max inlet head of 8 metres.
2.17 Pump position: The pump must be positioned on its anti-vibration mounting feet
and as close to the water source as possible.
2.18 Ambient temperature: The pump must be sited in a location where the maximum
ambient temperature does not exceed 40 o C.
2.19 Pipework: For optimum performance pipework MUST be 22 mm.
Pipework should only reduce to 15 mm when entering terminal fitting.
2.20 Static outlet pressure: The static outlet head (Figs. 5 or 6) must also be within
the maximum requirement of 8 metres.
2.21 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.
2.22 Direction of flow: Ensure the water flow is in the direction of the arrow marked
on the flow switch reed clamp (vertically upwards).
2.23 Flexible hoses: Use only the Techflow supplied hoses to connect the pump.
2.24 Isolating valves: Separate isolating valves (non restrictive) must be fitted to
allow easy pump service.
2.25 Preferred pump location: The preferred pump location is at floor level next to
the hot water cylinder or a level that is below the secondary tapping that feeds
the pump. This will ensure the pump has access to an air free water supply
which is important for trouble free operation (Figs. 5 or 6).
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.
2.26 Non-Preferred Pump Location: The pump must be located with at least
0.5 metres flooded suction at all times.
If it is not possible to locate the pump in the preferred area due to site limitations
and it is necessary to position the unit in the loft, or in a position above the
secondary tapping that feeds the pump, then there is an increased risk of air
locks. This risk must be eliminated.