Blue Seal G50-8A, Installation & Operating Instructions Manual

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NOTE: Components having adjustments protected (e.g. paint sealed) by
manufacturer are only allowed to be adjusted by an authorised service
agent. They are not to be adjusted by an unauthorised service person.
OVEN
A. BURNER AIR ADJUSTMENT
All gas adjustments should be done by a Qualified Person. The hob open top,
griddle and oven burners can all be adjusted to give the most efficient flame.
This is done by adjusting the aeration slides through which air is drawn in with the
injected gas.
The most efficient flame is clear blue/green in colour.
If the flame is yellow and wavey, then the burner needs adjusting.
B. OVEN CONTROL
The thermostat valve used in this oven to control the oven burner and maintain
set temperature, also controls the oven pilot burner and flame failure protection.
The control has a combination modulating/snap action thermostat, allowing the
burner flame size to increase/decrease according to heat demand and to avoid
overshoot, and be shut off the burner when responding to rapid temperature
change requirements.
The thermostat is factory set and cannot be calibrated. However should the oven
temperature need checking, the following steps should be taken.
1. Place an accurate thermometer or thermocouple in the centre of the oven.
2. Ignite oven pilot as per operating instructions.
3. Turn the thermostat knob to setting 4.
4. Wait for the oven temperature to stabilise (approximately 20 minutes).
5. Oven centre temperature should be 200 °C ± 10 °C.
Should a problem exist, the following checks should be made before assuming
the thermostatic control is faulty.
a. Check burner pressure.
b. Check MAXIMUM flow adjustment setting on control valve.
c. Check MINIMUM flow adjustment setting on control valve.
d. Pilot burner rate adjustment
Refer to page 13 for a, b, c & d procedures.
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SERVICING INSTRUCTIONS