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Part #4520414 (01/28/08) Page 7
OPERATION AND MAINTENANCE
Top and bottom heating units are each operated by a three
heat heavy duty reversible switch. An oven thermostat with
pilot light is also provided. The thermostat maintains the
temperature and the switches determine the source of the
heat.
1 Turn the top heating unit to HIGH.
2 Turn the bottom heating unit to HIGH.
3. Set the oven thermostat to the desired temperature. The
pilot light will now come ON.
4. When the desired temperature is reached, the pilot light
will go OFF. At this time the top heating unit switch may
be turned OFF or set as desired.
5 The bottom heating unit switch may be left at HIGH or
adjusted as desired.
Thermostat Calibration
All electric ovens are equipped with snap action thermostats.
Field calibration is seldom necessary and should not be
resorted to unless experience with cooking results denitely
provides that the control is not maintaining the temperature
to which the dial is set. To check the oven temperature when
calibrating, use only a reliable mercury thermometer or
preferably an oven pyrometer.
1. Place the thermocouple of the test instrument or reliable
mercury thermometer in the center of the oven.
2. Turn oven temperature control dial to 400°F (204°C). In
order to allow the oven temperature to stabilize, the oven
control must be allowed to cycle twice before taking a
test reading
3. Check temperature reading control just as it cycles ‘OFF”
as indicated by the cycling pilot. If the temperature doe
not read within 15°F (8°C) of the dial setting, recalibrate
as follows
4. Carefully remove the thermostat dial, not disturbing the
dial setting.
5. Hold the dial shaft steady and with a screwdriver, turn the
calibration screw, located inside the dial shaft clockwise
to decrease and counter-clock wise to increase the
temperature. I.E. 1/4 turn = 35°F (19.5°C).
6. Replace the thermostat dial and repeat steps 1 through 3
to verify that the correct adjustment has been made.
Cleaning of Core Plates
1. Set the thermostat dial to 550°F (288°C) at the end of the
cooking day and allow to cycle for one hour.
2. When the oven has cooled the residue will have
carbonized and can be removed by sweeping with a sti
wire brush.
3. Stubborn residue can be loosened with a scraper.