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4000124050-2
12 Commissioning
Important:
The commissioning and first firing of the boiler
must only be done by a competant person.
Gas installation
If conversion from G20 to 30 or 31 is required, refer to section
13.
It is recommended that any air is purged from the supply at the
gas purge point on the gas valve, see
diagram 12.1.
Filling the system
The following steps 1 - 8, show how to fill the system.
1.
Make sure that:
• The boiler is connected to the
electrical supply.
• The gas service cock is open.
Turn the switch OFF (
0
)
• Turn the switch ON (
I
)
•
F24E Only
Open the tap on the filling device
• Fill the system until the pressure indicated on
the display is 1 bar. Close filling device.
F24E shown
9810
9796
GAS
PURGE
POINT
Diagram 12.1
3.
• Undo cap on automatic air vent on top of
pump and leave undone.
9792
4.
➜
Air in pipes
Important:
A central heating system can not operate correctly
unless it is filled with water and air bled from the system. If
these conditions are not met the system may be noisy.
Bleed the air in the radiators and adjust the pressure if system
requires. If the system requires filling to often this may be due
to minor leaks or corrosion in the system.
F24E shown
11898
2.
• Open the three water isolating valves.
HEATING
RETURN
COLD
WATER IN
(F24E Only)
HEATING
FLOW
DOMESTIC HOT
WATER OUT
(F24E Only)
GAS SERVICE
COCK
Note: Isolating valves are shown in the: OFF position
NOTE: On initial fill there may be a small discharge
of water from the Reduced Pressure Zone valve
➜
BURNER
PRESSURE
POINT
