Garland Enodis GD-152H, Installation, Operating & Service Instructions

Page: 9 / 16

Part # 4519762 (01/05) Page 9
ADJUSTMENTS Continued
Calibration Instructions
1. Field calibration is seldom necessary and should not
be attempted unless experience with cooking results
definitely proves that the control is not maintaining
the temperature to which the dial is set.
2. Suspend thermometer or thermocouple in the
middle of the fry tank, approximately 2” (51 mm)
below the shortening level.
3. Allow burner to cycle at least four times.
4. When the burner just cycles off after the fourth
cycle, compare reading of the thermometer or
thermocouple with thermostat setting.
5. If the two do not agree, ± 10°F (5°C), loosen the
two set screws on the thermostat knob.
6. Set the pointer at the temperature indicated by the
thermometer.
7. Tighten the set screw firmly.
8. Ensure the back surface of the knob is spaced away
from the dial plate at least the thickness of a dime.
NOTE: Do not turn adjusting shaft more than two
turns in either direction or permanent damage can result.
This action will void the Standard Fenwal thermostat
warranty.
Griddles
IMPORTANT: The flue must be installed prior to
start-up.
Lighting Instructions And
Pilot Burner Adjustment
Each griddle burner is equipped with a pilot.
For the HI-LO valve operated model, the pilot adjusting
valve pilot burner is located on the manifold to the
left of each griddle valve. Open the pilot valve with a
screwdriver and light the pilot with a match.
For the griddle equipped with thermostats the pilot and
the main burner are controlled by the ON-OFF valve.
MAKE SURE THE THERMOSTAT IN ON OFF
POSITION
. Turn on the main valve and light the pilot
with a match. The pilot adjusting screw is located at the
bottom of the thermostat.
Pilots flames must be 3/4 inch (19mm) long
Burner Operation
The burner will light automatically from the pilot. Turn
the valve to full “ON” position. Once the flame has
ignited, adjust the valve to the desired setting.
Hi-Lo Valve Adjustment
Griddles equipped with Hi-Lo valves require a low flame
setting. To adjust, proceed as follows:
1. Burner must be cold.
2. Be sure pilot flames are lit, and adjusted.
3. Turn dial to “LO” position, then remove dial.
4. With a screwdriver, turn the small adjusting screw
inside the valve stem and adjust to obtain the low
cooking temperature desired, maintaining a stable
flame covering the entire burner (minimum 3/16
inch (5 mm) long flame).
5. Replace dial and turn to “OFF” position.
Calibration Instructions
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.