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7.1.5 Check all the control settings. These are: -
Knob
Position
7.2 Flame Supervision & Spillage Monitoring System
The pilot unit incorporates a system that will automatically shut off the gas supply if the
pilot flame goes out or if there is insufficient oxygen due to spillage or lack of
ventilation.
Check that the system operates properly as follows;
7.2.1 Light the appliance. Set at position 5 and leave for one minute.
7.2.2 Turn back to "OFF" to extinguish the pilot. Note the time when the pilot goes
out. Listen for a snap sound at the gas tap. Note the time when the sound is heard. An
electromagnetic valve shutting off the gas supply through the tap causes this sound. The
valve is located in the body of the tap. The valve should operate within 60 seconds of
the pilot going out. If the valve does not operate within this time limit do not allow the
appliance to be used until the fault has been 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
authorised parts.
7.3 Check Reference Pressure
The appliance is pre-set to give the correct heat input at the inlet pressure shown in
section 3 of this manual. No adjustment is necessary.
7.3.1 Detach the control knob from the spindle. Remove the outer case.
7.3.2 Check the burner pressure by fitting a pressure gauge at the test point. The test
point is on the gas tap. Check the pressure with the appliance alight and set at maximum
output (Control position 5).
7.3.3 After checking, turn off the appliance. Remove the pressure gauge and replace the
test point sealing screw. Relight the appliance. Turn to the maximum output position
and test around the sealing screw for gas soundness with a suitable leak detection fluid.
7.3.4 If all the above checks are satisfactory, continue with the installation. If not, check
the control and ignition circuitry and components as described in the servicing section
of this manual.
INSTALLER GUIDE
Radiants Condition
2
Centre radiant on low. Outer radiants off.
3
Centre radiant fully on. Outer radiants off.
4
Centre radiant fully on. Outer radiants on low.
5
All radiants fully on.
Page 17
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