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2.4 COMMISSIONING THE APPLIANCE
Important - Prior to operation, ensure that ALL packing material has been removed.
2.4.1 Setting Open Top Gas Pressure
(Natural Gas Only)
a) It is necessary to check gas pressure during commissioning and a suitable gauge must be
connected to test point on RH side of supply manifold (situated behind front control facia).
b) Turn on main gas valve at supply to unit.
c) Light three open top burners as detailed in Section2.5.3. Gas supply pipes may contain air so
repeat procedure until burner lights.
d) Adjust governor (Natural gas installations only) at unit rear to relevant pressure setting found in
Section 1.9.
To increase pressure - turn screw clockwise (or anti-clockwise to decrease). Check again after
15
minutes of operation.
e) Disconnect gauge. Replace test point sealing screw and test for gas tightness.
2.4.2 Checking Performance of the Controls
a) Light open top or oven as detailed in Section 2.4.3.
Check ignition is smooth and without
delay.
Repeat operation several times.
b) Place a thermocouple at oven centre and select 200°C setting. Allow oven to heat up and check
temperature is 200°C (+/-10°C). If reading is outwith specified range, the thermostat may be
faulty. In this case, unit should be serviced (see thermostat replacement and calibration
procedure). Turn gas supply to oven OFF
and allow a sufficient cool-down period before
removing thermostat.
2.4.3 Lighting Sequence
Important - Prior to operation, ensure ALL packing material has been removed from appliance.
Open Top
1. Ensure mains gas is turned on.
2. To light hob burners, press knob and turn to full flame position. Ignite burners using taper or
match. Hold in knob for 20 seconds and then release. Burner will remain lit. Turn knob to
required position.
Oven
1. Ensure mains gas is turned on.
2. To light oven, close doors and set thermostat to
required temperature.
3. Ignition sequence will begin – If air is present in gas system, ignition system will go into a
lockout state.
Press burner reset button to repeat ignition sequence. (This will occur until all air is
purged from pipework and pilot flame is established).
4. To extinguish flame, turn thermostat to OFF position.
2.5 INSTRUCTION TO USER
The installer must ensure that user(s) thoroughly understands instructions for lighting, cleaning and
correct use. It is also important to ensure that gas isolating switch location is known to user(s) and that
procedure to follow in event of emergency is demonstrated.
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