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Part # 1009080 Rev 5 (01/25/08) Page 9
Calibration of the Griddle Thermostat
Equipped with commercial duty snap action electric
thermostats, these units are designed to open on
temperature rise. Field re-calibration is seldom necessary and
should not be resorted to unless experience with cooking
results denitely proves that the control is not maintaining
the temperature to which the dial is set.
NOTE: NO ATTEMPT TO RECALIBRATE THE GRIDDLE CONTROL
SHOULD BE MADE WITHIN THE WARRANTY PERIOD. IF
THE CONTROL IS OUT ± 20° F FROM THE DIAL SETTING,
THE CONTROL WILL BE REPLACES UNDER WARRANTY.
IF SOMEONE ATTEMPTS RECALIBRATION DURING THE
WARRANTY PERIOD THERE WILL BE NO WARRANTY ON THE
CONTROL THAT WAS TAMPERED WITH.
Calibration Instructions
1. Use a test instrument (surface pyrometer) with a special
disc type thermocouple or reliable “surface” type
thermometer. Note: A drop of oil on the face of the disc
will provide better contact with the griddle plate.
2. Turn all griddle thermostats to 350° F (177° C). In order
to allow the griddle temperature to stabilize the controls
must be allowed to cycle three times before taking a test
reading.
3. Check the temperature reading when the thermostat
cycles o by placing the sensor rmly on the center
of each section of the griddle surface. Take a second
temperature reading when they thermostat cycles back
on. Make a note of this reading. The average of the two
readings should be ± 20° of 350° set temperature.
If the average is more than the 20° tolerance, recalibrate
as follows.
OPERATION Continued
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, (that is located inside the thermostat
shaft), clockwise to decrease and counter-clockwise to
increase the temperature. A 1/4 turn = 25°F change
6. Replace the thermostat dial and repeat steps 1 through 3
to verify if the correct adjustment has been made.
Dial Shaft
Calibration Screw Head
Calibration
Screw Head
Increase
Decrease
1/4" Turn