13
10.3
Replace the window unit. Locate its bottom edge in the support channels at the firebox sides. Refix the knurled
screws at the sides near the top.
11.
CHECK APPLIANCE OPERATION
The Flame Supervision & Blocked Flue Monitoring System
The pilot/cross lighting unit incorporates a system which will automatically shut off the gas supply if the flame goes out.
The appliance also incorporates a system which will shut off the gas supply if the flue is faulty. If the flue is faulty, the hot
products of combustion will pass over and actuate a heat sensitive switch located at the right side of the downdraught
diverter. When actuated the switch will shut off the gas supply
.
If the gas supply is shut off due to activation of any part of the above system, the appliance must not be used until the cause is
identified and corrected.
This monitoring system must not be adjusted, bypassed or put out of operation.
This monitoring system, or any of its parts, must only be exchanged using Valor Authorised parts.
11.1
Depress the control knob. Turn anticlockwise until resistance is felt just before the piezo electric ignition is
activated. Keep the knob depressed for a few seconds to purge air from the gas pipes. When it is judged that the air has
been purged, keep the knob depressed and turn to the IGN position. A spark should be produced which should ignite the
pilot and cross lighting burner.
11.2
When ignition has been achieved, keep the control knob depressed for approximately five seconds to allow the
thermocouple probe to warm up then release it. If the burner does not remain alight, ensure that the air has been purged.
11.3
Check that the burner is correctly alight at all settings as shown in the following table:-
Control Knob Setting
Burner Appearance
IGN
Pilot and cross lighting burner only on.
1
Pilot and cross lighting burner on.
Front burner on low.
2
Pilot and cross lighting burner on.
Front burner on low.
Rear burner on high.
3
Pilot and cross lighting burner on.
Front burner on high.
Rear burner on high.
11.4
Turn off after checking. To turn off, push the control partially in, turn clockwise to OFF and release the knob. If
any resistance is experienced at the IGN position, release the knob before turning to OFF.
Note
:
If the fire is turned off while hot, wait three minutes before relighting.
12.
CHECK THE REFERENCE PRESSURE
The burner aeration is non adjustable. The appliance is preset to give the correct heat input on Natural Gas at 20 mbar
(8in. w.g) inlet pressure and no further adjustment is necessary.
12.1
The burner pressure should be checked at the pressure test point located on the pipe connecting the gas tap to the
front main burner. The pressure check should be carried out using a calibrated pressure gauge after removing the pressure
test sealing screw. The fire should be alight and the control knob should be at setting 3.
12.2
The pressure setting should be within the limits shown in the appliance specifications - see section 1 in this
manual.
12.3
After checking the pressure, turn off the fire, remove the pressure gauge and replace the pressure test sealing
screw. Test the sealing screw for gas soundness.
