Operating instructions

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Cont ...
4 PRIMING
4.11 Priming: This pump unit is self venting. Open the mains stopcock and allow the
pump to fill and vent, please note the pump chamber must be full of liquid at all
times. Seal damage will result if the pump runs dry.
4.12 Starting:
a) Ensure all outlets are closed, turn power supply ‘on’.
b) Open and close all outlets in turn associated with the pump allowing liquid to
flow from each outlet until all air is purged.
c) The pump will run on while this is being completed until the vessel is full.
d) Any tap or control valve within the system when opened and closed will now
turn the pump on & off. Check system for leaks, if clear the system is now
operating correctly
e) Carefully check pump and pipework for leaks whilst pump running and
stationary before leaving the installation unattended.
Note: It is normal for the pump to run on after all outlets have been closed.
This gives the pump chance to re-fill the vessel ready for next use.
4.13 For Further Technical Support: Phone the Stuart Turner PumpAssist team
on [phone]. Our staff are trained to help and advise you over the
phone.
5 MAINTENANCE
5.11 Disconnect electrical supply before working on pump.
5.12 Turn off liquid supplies to the pump and release pressure by opening outlets
before attempting maintenance.
5.13 Should ever the need arise for the vessel to have its air charge checked or
replenished, it should be carried out as follows: -
a) Isolate pump electrically.
b) Isolate the mains water supply via the stop valve.
c) Release system water pressure by opening a system outlet (tap).
d) Check air charge at Schrader valve (Fig. 1) using a tyre pressure gauge.
e) Replenish air charge if required by injecting air into the vessel via the
Schrader valve using a car or bicycle pump, ensuring a system outlet
valve (tap) remains open during this procedure to allow the vessel to
exhaust any excess water.
f) Close all system taps, open the mains stop valve, turn on electrical power.
Model
Vessel Pressure
KpA bar psi
Mains Boost Extra 100 150 1.5 22
Mains Boost Extra 200
140 1.4 20.5
Mains Boost Extra 300