SP8016-1005
ACCU-STEAM SERVICE MANUAL
PAGE 8
RTD ThERMOSTAT CALIBRATION
The operating temperature range is 200 °F to 400 degrees F. Record the measured griddle surface
temperature at the set points of 200 °F, 300 °F and 400 °F to determine if the controller is out of
range. The calibration offset potentiometer shifts the range up or down but range or gain width is fixed
and cannot be adjusted. If the controller is
±
10 °F out of range, replace it.
Open the control panel
1.
Plug the unit in and hook up the gas supply.
2.
Place a weighted temperature probe on the cooking surface of the griddle in a location above
3.
the griddle temperature sensor. Keep the probe off of the dimples and use a small amount of
high temperature cooking oil between the surface of the probe and giddle.
Set the thermostat at 200 °F, turn the unit on and allow the temperature to stabilize. Take a
4.
reading from the thermometer and record the value.
Set the thermostat at 300 °F, allow to stabilize and record the value.
5.
Set the thermostat at 400 °F, allow to stabilize and record the value.
6.
Take a reading from the thermometer. The value should be 400 °F (+1 °F / -4 °F).If not, adjust
7.
the offset potentiometer on the thermostat and allow the unit to stabilize.
Repeat step 7 as is necessary.
8.
Close the control panel, install the retaining screws and allow the unit to stabilize.
9.
Observe the thermometer. The indicator reading should be 400 degrees F (+1 °F / -4 °F). If
10.
the reading is not, open the panel and repeat steps 7 – 9.
TEMP PROBE
The temperature sensor is screwed into a thermal-well underneath the griddle chamber. It is
isolated from the distilled water of the griddle chamber. It is designed to indicate temperature
by changing the resistance based on temperature to the thermostat. Be careful if you have to
drill out the sensor not to puncture the chamber as it will render the griddle un-repairable.
Unplug the unit.
1.
Remove the three screws from the front door panel and drop the panel down.
2.
On the bottom side of the unit, locate the thermal-well that the probe capillary is screwed into
3.
and remove.
Remove the leads from pins 6 & 7 on the thermostat.
4.
Reinstall in reverse order. (Type K probe, yellow on #6 and red on #7)
5.
PROBE LOCATION
UNDERSIDE OF GRIDDLE
RTD TEMPERATURE SENSOR
AT0E-2885-3
REMOVAL AND INSTALLATION
