Stuart Turner Techflo Turbo 15TNH - Manual (Page 14)

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5 COMMISSIONING
5.11 System Flushing: This pump incorporates push-in connectors
and plastic components that must not come into contact with
solder flux, acid-based descalents or aggressive cleaning agents.
The pipework system should be flushed out prior to the pump
being connected to ensure any contaminants/chemical residues
and foreign bodies are removed from elsewhere in the system.
5.12 Water Supply: Always ensure that water storage capacity is adequate to meet
the demand. Ensure the pump chamber is full of water before starting the
pump. Failure to do this could result in seal damage. To ensure dry running does
not occur the pump must be primed as described in priming section. Do not run
pump dry.
5.13 Priming:
Never operate pump with inlet and/or outlet isolating valves in the
closed position. Damage will occur!
The chambers must be primed (filled with water) before starting.
This is achieved as follows.
a) Turn off the pump inlet isolating valves.
b) Turn on water supply to pumps from the system
service valves.
c) Open pump inlet isolating valve.
d) Place a towel under priming plug (Fig. 15) to
absorb any spillage.
e) Loosen priming plug on the pump body (Fig. 15).
f) Wait until an unrestricted and even flow of water is seen to flow from the
priming plug location hole. This may take up to 30 seconds.
g) Re-seal priming plug by nipping tight to 1.5 Nm.
h) In the case of twin pumps, repeat procedure on other end of pump.
i) Now both pump chambers are full of water.
j) The pump is now ready to start.
Fig. 15
Priming Plug
Pump Body