Warmworld FFC 30/60 Installation & Service Instructions Manual page 22

2. Gas Valve
Lower the Electrical Tray.
Turn the Gas Cock off.
Pull off the electrical connector from the Gas
Valve.
Release the pilot feed tube.
Undo the four shoulder bolts at each end of
the valve.
TAKE CARE TO SUPPORT THE VALVE
AS IT IS RELEASED.
Replacement is the reverse.
When secure, attach a manometer to the
burner pressure tapping on the right hand
side of the valve.
The Pilot Adjuster is factory set.
Turn on gas and electrical supply.
The gas valve slowly opens to its setting
ensure it has fully opened before adjusting.
Set burner gas pressure with the governor.
(see Technical Data on page 1 for figure)
Removing the Case
Lower the Electrical Tray.
Undo the two M5 screws at the base of the
Case.
Lift the Case straight up about half an inch
(12mm).
Gently pull the Case straight forward off the
hidden studs at the top of the boiler. (The
cover hangs on two studs in keyhole slots)
Examine the sealing strip for damage and
replace if necessary.
Place the Case somewhere safe from dam-
age
IMPORTANT: FAILURE TO CORRECTLY
LOCATE THE APPLIANCE CASE COULD
RESULT IN LEAKAGE OF COMBUSTION
PRODUCTS INTO THE ROOM.
Condensing Boiler
3. Fan Assembly
Lower the Electrical Tray.
Remove the Case.
Undo the wing nut holding the Fan Protec-
tion Hoop.
Pull the electrical connectors off the Fan.
Gently pull the pressure tubing off the tap-
pings on the Flue Hood.
Undo the two screws holding the Flue Hood
and slide forward and away.
Re-assembly is the reverse.
4. Air Pressure Switch
Lower the Electrical Tray.
Remove the Case.
Pull the electrical connectors off the Air
Pressure Switch.
Gently pull the pressure tubing off the both
tappings on the switch.
Undo the M4 nut and wing nut holding the
Air Pressure Switch to its bracket on to the
Back Panel
Lift off its studs and rotate out of its bracket.
Re-assembly is the reverse.
5. Flue Thermostat
Lower the Electrical Tray.
Remove the Case.
Pull the electrical connectors off the Flue
Thermostat.
Re-assembly is the reverse.
6. Control Sensor
Lower the Electrical Tray.
Remove the Case.
Unclip the sensor.
Pull the electrical connectors off the Control
sensor.
Re-assembly is the reverse.
7. Overheat Cut-off Device
Lower the Electrical Tray.
Remove the Case.
Pull the electrical connectors off the Over-
heat Cut-off device.
Unscrew from its mounting.
Re-assembly is the reverse.
Lower the Electrical Tray.
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