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4. COMMISSIONING - Page 7
WARNING: The outer case of this appliance is not merely a
cosmetic device. It is a functioning component in the air
supply to the burner and MUST BE replaced with great care
NOW, before any attempt is made to light the burners.
TO ALLOW THE MAIN BURNER TO IGNITE WITHOUT
THE CASE IN POSITION IS A HAZARD.
1.
Refit the outer case ensuring it is correctly seated then
secure (3 screws). Ensure that the temperature selector
control rod is set as shown (setting '5').
2.
Ensure that the gas and water supplies are turned ON.
3.
Ensure that all hot water outlets are closed.
4.
Remove the screw and sealing ring from the burner
pressure test point and attach a pressure gauge.
5.
Fully depress and hold the ON button '
repeatedly press and release the IGN button '
the pilot is lit. The pilot flame can be observed through
the pilot viewing window.
6.
Hold the ON button '
after the pilot is lit, then release. If the pilot goes out,
repeat the lighting operation keeping the ON button
'
' depressed a little longer.
7.
Test for gas soundness using a suitable leak detection
fluid on all external gas joints.
8.
Open a hot water outlet and the burner will ignite. Allow
the water to run for a few minutes then check the
burner pressure - it should be 12.5 mbar (5 in w.g.), if
the pressure is not correct see the FAULT FINDING
section.
' and
' until
' in for a further 10 seconds
Fig. 9
Fig. 10
Fig. 11
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