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Cont ...
3 COMMISSIONING
3.11 Peripheral pumps should never be allowed to run dry. Before operating the
system, both pump and pipework should be primed. Further checks should
be made for leaks and when all is satisfactory the electrical supply to the pump
may be switched on. A vent/priming plug is fitted. To prime, release the vent plug
(see Fig. 1) until liquid emerges from the threads then re-tighten.
3.12
Safety:
The motor casing can become very hot under normal operating
conditions, care should be taken to ensure it cannot be touched during operation.
3.13
Priming:
Never operate pump with inlet and/or outlet isolating valves in the
closed position. Damage will occur!
The pump must be primed (filled with water) before starting.
Turn on the service valves and vent/prime pump head.
(a) Loosen priming plug and allow an even flow of water this may take a
few
seconds.
(b) Re-seal draining plug, nipping tight. The pump is now ready to start.
4 MAINTENANCE
4.11 No routine maintenance is required, but provision should be made for easy
access to the pump to allow for repairs due to normal wear and tear. Isolate the
pump from the electricity supply, turn off liquid supplies to the pump and release
pressure by opening liquid outlets before attempting repair.
4.12
Cleaners, Disinfectants and Descalents:
Acid based descalents and aggressive cleaning agents must not
come into contact with the pump. The pump must be removed from
the system prior to the use of these products. The system should be
flushed to remove all chemicals before the pump is re-connected.
If in any doubt as to the suitability of the chemical solutions, please
contact our Pump Assist helpline on 0844 98 000 97.
All models Fig. 4
Priming
Plug
Summary of Contents for PH35
Page 7: ... 7 NOTES ...
