Southbend SB18 - Manual (Page 6)

4 L20-394 rev 0 (04/12)
WARNING
Gas units installed with casters must have a restraining device. This device must be connected at all times that the
fryer is connected to the gas supply. If it is disconnected for any reason, it must be reconnected.
Thermostat Calibration Check
NOTICE
Thermostat calibration requires that the temperature of the fryer be raised above boiling.
Therefore, you will need to drain the water from the fryer and fill it with oil. Before removing
the water, perform the initial cleaning of the fryer. Cleaning the fryer now will prevent you
from having to drain the oil and refill with water later.
To perform the calibration check detailed below you will need a digital thermometer.
a. Place the tip of the thermometer in the shortening approximately 1" above the temperature sensors.
b. Set the thermostat at 325°F and wait for the temperature reading on the thermometer to rise. As the temperature
rises toward 325°F watch the thermometer closely.
c. If the shortening temperature reaches 350°F and the burners DO NOT turn off, turn the thermostat down. Keep
lowering the thermostat setting until the burners go out.
CAUTION
If the burners do not turn off at the lowest thermostat setting, the thermostat could be
defective. Contact your representative immediately.
d. Let the fryer cycle 4 to 6 times before checking the temperature. Compare the thermometer temperature against
the thermostat setting. If the values are more than 5°F apart, calibrate the thermostat using the appropriate
calibration procedure in this manual.
THERMOSTAT CALIBRATION
Millivolt thermostats
a. Set the thermostat dial to 325 o F.
b. Remove the thermostat dial by pulling the knob straight out. DO NOT rotate the dial.
c. Hold the outside of the shaft so it does not move. Use the tip of a small, flat tip screw driver to scrape away
the sealing compound from the adjustment screw.
d. Turn the adjustment screw clockwise to lower the temperature setting and counterclockwise to raise the
temperature. One quarter turn changes the temperature approximately 25
o F.
e. Turn the adjustment until the burners turn on at 325 o F. Replace the knob and allow the fryer to cycle 4 to 6
times. Check the temperature of the thermometer against the thermostat dial. If it is greater than 5 o F differ
ence, repeat the calibration procedure.
f. When the calibration is correct, remove the thermometer and replace the tube screen.
Filling the fryer with liquid shortening
a. Make sure the drain valve is completely closed.
b. Fill the fryer with oil to the "Oil Level" line marked on the back of the tank.
e. Turn the fryer gas valve knob to the “ON” position. Allow the fryer to bring the water to a low boil and add
one packet of Pitco fryer cleaner or a mild, low sudsing detergent and allow water to continue to boil for a minute,
making sure water does not boil over.
f..
Turn the gas valve knob to the “PILOT” position and allow fryer to soak with the hot water for 15 minutes.
g. Using the fryer cleaning brush, scrub the inside of the fryer to remove protective coating.
h. When cleaning is complete, turn the gas valve knob to the “OFF” position and drain the water into a container
suitable for hot water and dispose of it.
i. When the tank has cooled, rinse it thoroughly with cool water. Continue to rinse the tank until the cleaner has
been rinsed, thoroughly from the tank.
j. Using a clean dry cloth, wipe out all of the water. Be very thorough removing the water, because any residual
water will cause hot oil to splatter out of the fryer. Close the drain valve and remove container.
k. Now that the tank is clean, you are ready to fill and operate the fryer. Refer to instructions on adding shortening
to the fryer.