6. Disconnecting hose. To disconnect “push fit” hose, firmly push down white retaining
ring, whilst pulling out the hose.
7. NO SOLDER FLUX.
Do not allow any solder flux to come into contact with any of the plastic parts of the
pump especially the “push fit” retaining rings.
8. Do not let the pump run dry.
Purge with water thoroughly for 5 minutes before running
pump. Then check that each connection is water tight and
not leaking.
9. After completing installation, the
whole system must be thoroughly
tested – operating both hot and cold
at full flow.
10. Maximum hot water temperature must not exceed 60°C
(140°F) in accordance with BS6700 1997.
The hot water supply to the pump inlet should be connected
from the first outlet from the hot water cylinder expansion
pipe, i.e use a Surrey Flange.
3. POSITIONING PUMP
Pumps are designed to push water, not suck. For this reason, keep the pump as close as
possible to the source of hot and cold water. Keep the pump as low, and the input head of
water as high as possible.
For optimum performance ensure a good water flow to the pump from the tank. This is
achieved by having a sufficient head, unrestrictive pipework and provision to prevent air
locks.
Suggested location for the pump, if space allows, is on the floor of the airing cupboard.
The area around the pump must be well ventilated – the pump must not be covered by
boxes, clothes etc, otherwise the motor will overheat.
If the pump is to be installed in the loft, see note 3 of section 2 (important instructions),
there may not be sufficient head to feed the pump. Protect from frost damage.
The pump must be mounted horizontally with outlets vertically upwards to ensure correct
operation of the flow switches.
To reduce noise caused by vibration we recommend the pump be mounted on a small
concrete paving slab approximately 225 x 225mm and 40-50mm thick.
Connect pump and shower system as shown in Fig. 1.
To achieve 0.5 l/min to turn the flowswitches on, there must be a minimum height
between the water level in the cold water storage cistern and the shower outlet of
approximately 250mm –- see Fig 1.
The pump must be installed in accordance with the Water Supply (Water Fittings)
Regulations 1999.
2
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