Garland SU680 Ventilation Hood User Manual


 
Part # P153 Rev 1 (02/21/08) Page 17
4. Carefully remove the thermostat dial, not disturbing the
dial setting.
5. Hold the thermostat shaft steady with a small at blade
screw driver. Turn the calibration screw located inside the
shaft clockwise to decrease the temperature and counter
clockwise to increase the temperature. NOTE: each ¼ turn
of the screw will create a change of approximately 35° F
(20°C).
6. Replace the thermostat dial and repeat steps 1 though 3
to verify that the correct adjustment has been made.
Dial Shaft
Calibration Screw Head
Calibration
Screw Head
Increase
Decrease
1/4" Turn
MAINTENANCE AND CLEANING Continued
Griddle
1. Use a test instrument with a special disc type
thermocouple or a reliable surface type pyrometer. NOTE:
a drop of oil on the face of the disc will provide better
contact with the plate.
2. Set all griddle thermostats to 350°F (177°C). In order
to allow the griddle temperature to stabilize, the
thermostats must be allowed to cycle twice before taking
a test reading.
3. Check the griddle temperature when the thermostat just
cycles “OFF” by placing the thermocouple rmly on the
griddle directly about the sensing bulb of the thermostat.
The reading should be between 335° F (168°C) and 365°
F and (185°C). If the reading is outside of these limits,
calibrate as follows:
4. Carefully remove the dial, not disturbing the shaft
position.
5. Hold the shaft steady and with a small at screw
driver turn the calibration screw located inside the
shaft clockwise to decrease temperature and counter
clockwise to increase temperature. NOTE: Each ¼ turn
of the screw will create a change of approximately 35° F
(20°C).
6. Replace the thermostat dial and repeat steps 1 through 3
verify that a correct adjustment has been made.