O Potterson CF 20/35, Installation And Servicing Instrucnions

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FIG. 15. BOILER WIRING DIAGRAM
Page 15
COMMISSIONING - Page 16
Open Vented Systems
Remove the pump and flush out the system thoroughly with cold water. Refit t
he pump, fill and vent the system and examine for leaks.
Sealed Systems
The system can be filled using a sealed system filler pump with a break tank o
r by any other method approved by the Local Water Authority. Refer to
FIG. 5
and BS. 67981987. Remove pump and flush out the system thoroughly with c
old water. Re-
fit the pump. Fill and vent the system until the pressure gauge registers 1.5 ba
r (21.5
lbf/in²),examine for leaks. Raise the pressure until the safety valve lifts.
This should occur within
±0.3 bar of the pre-
set lift pressure of 3 bar. Release water to attain the correct coldfill pressure.
All Systems
The whole of the gas installation including the meter should be inspected and
tested for soundness and purged in accordance with the recommendations of
BS. 6891.
FIRST LIGHTING
A Ensure that the pump and radiator isolating valves are open.