Stuart Turner Monsoon U1.5 bar Twin Installation Instructions Manual page 14

3. Priming
WARNING
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 1 & 2 and
pump outlet isolating valves 3 & 4.
b) Turn on water supply to pumps from the system
service valves.
c) Open pump inlet isolating valve (1).
d) Place a towel under priming plug (Fig. 14) to absorb
any spillage.
e) Loosen priming plug on shuttle valve assembly (Fig. 14).
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) Close pump inlet isolating valve (1) and repeat process with pump inlet isolating
valve (2).
i) Now both pump chambers are full of water.
j) Open both pump inlet and outlet isolating valves. The pump is now ready to start.
Fig. 14
1
Priming Plug
- 14 -
On
3
Off
4
2