10.2.1 Lighting the burner.
1.
Depress the control knob and rotate it
anticlockwise to the ‘pilot ignition’ position. A 'click'
will be heard as the integral piezo operates. A spark
should be seen between the electrode and pilot tip.
2.
Turn the control knob clockwise to the 'OFF'
position. Repeat this operation until a flame appears
at the pilot. There may be a delay before the pilot
lights due to air being purged from the system.
When a flame appears at the pilot keep the control
knob depressed and hold the pilot ignition position
for ten seconds. When the control knob is released the pilot flame should remain lit.
10.2.2 Operating the burner.
1.
When the pilot burner is operating properly, gradually turn the control knob anti-
clockwise to 'HIGH' (Depress the knob slightly to get past the ‘pilot ignition’ position).
The main burner should now light. Depress the control knob slightly to release from the
'HIGH' position and turn back (clockwise) to 'LOW'. While turning, the burner flames
should gradually become lower but remain alight. Depress the control knob slightly to
release from the 'LOW' position and turn back (clockwise) to the Pilot ignition position.
The main burner should extinguish but the pilot should remain alight. Depress the
control knob slightly and turn back (clockwise) to turn OFF.
This will extinguish the pilot.
If the above checks are satisfactory, continue with the installation. If not, check the
control and ignition circuitry and components.
10.3 Inlet pressure check.
The appliance is pre-set to give the correct heat input
at the inlet pressure shown in section 2 of this
manual. No adjustment is necessary.
1.
Check the inlet pressure by fitting a pressure gauge
at the test point. The test point is on the inlet elbow
(See figure 22). Check the pressure with the
appliance alight and set at maximum output.
2.
After checking, turn off the appliance. Remove the
pressure gauge and replace the test point sealing
screw.
3.
Relight the appliance. Turn to the maximum output
position and test around the sealing screw for gas soundness with a suitable leak
detection fluid.
Page 23
INSTALLER GUIDE
Figure 22. Pressure test point
Figure 21. Burner tags