TEMPERATURE (°F) RESISTANCE (Ω)
77 90,000 - 110,000
350 604 - 836
415
1
302 - 369
460
2
191 - 233
1
High temperature alarm level for the cooking
controls
2
Shorted probe equivalent temperature
COOKING CONTROL
CALIBRATION
NOTE: Verify condition of temperature probe as
outlined under TEMPERATURE PROBE TEST
before proceeding.
1. Check the level of shortening in fry tank. The level
must be between the MIN & MAX fill lines before
proceeding.
2. Allow shortening to cool below 300°F.
3. Place a thermocouple in the geometric center of
the fry tank one inch below the shortening
surface.
4. Set the cooking control to 350°F and turn the fryer
on.
5. Monitor the heat indicator lamp. When cooking
control is calling for heat, lamp will be on. If
cooking control is satisfied, lamp will be off.
Analog Control - Heat light is to right of zero on
temperature scale.
Solid State Control - Decimal point of first
character indicates heat on when lit.
Computer Control - Two LED lamps on the Oil
Temp key that indicate heat on.
NOTE: Agitate the shortening, to eliminate any cold
zones.
A. Allow cooking control to cycle three times to
stabilize shortening temperature.
B. Record meter reading from thermocouple
when the cooking control cycles off and on
for at least two complete heating cycles.
6. Calculate the average temperature by adding the
temperature reading when the heat lamp goes
out to the temperature reading when the heat
lamp comes on & divide this answer by 2.
[ Temp. (Lamp off) + Temp. (lamp on) ] ÷ 2 =
Average Temp. Example: 360° + 340° ÷ 2 =
350°F.
The average temperature should be 350°F (±
5°F).
A. If the average temperature reading is within
tolerance, cooking control is properly
calibrated.
B. If the average temperature reading is out of
tolerance, perform the following:
1) Analog Control - Remove knob and
turn adjustment screw
counterclockwise to increase
temperature and clockwise to
decrease temperature.
2) Solid State Control - Adjust OFFSET
TEMPERATURE.
3) Computer Control - Adjust OFFSET
TEMPERATURE.
7. Repeat the average temperature calculation for
up to three attempts. Allow the cooking control to
cycle at least two times between adjustments
before performing the calculation.
8. If calibration is unsuccessful, the cooking control
may be malfunctioning and cannot be adjusted
properly. Install a replacement cooking control
and check calibration.
FLAME SENSE CURRENT CHECK
PRIOR TO 12/1/12
Certain procedures in this section
require electrical test or measurements while power is
applied to the machine. Exercise extreme caution at
all times. If test points are not easily accessible,
disconnect power and follow lockout / tagout
procedures, attach test equipment and reapply power
to the test.
1. Remove cover of power supply box.
2. Locate red flame sense wire.
VK and TR GAS FRYERS W/Wo KleenScreen PLUS - SERVICE PROCEDURES AND ADJUSTMENTS
Page 25 of 55 F45474 (0413)
