8
Gas Valve Adjustment (Manual Valves):
By-Pass Adjustment Instructions:
NOTE:
DO NOT OVER
TIGHTEN.
DO NOT TURN
SCREW COUNTER-CLOCKWISE
The manual gas valve is at full on when turned counter-clockwise approximately 1/4 turn. This valve can be
turned down to the point where the flame flickers over the burner but does not extinguish if temperatures
below 300 degrees F are required.
Gas ValveAdjustment (BJWAValves):
1.
Light burner, turn the dial to full on.
2.
After 5 minutes, turn dial clockwise to a point slightly beyond the first mark on the dial.
3.
With a screwdriver, turn the by-pass adjustor counter-clockwise to increase the flame, clockwise to
decrease it, until there is a minimum flame over the entire burner. A flame height of between 3/16
and 1/4 inch tall is acceptable.
4.
If the burners are turned to full on, the flame height should increase. Leave the flame at full on for a
few minutes. Then, decrease the setting to low. The flame should decrease to the height that you
just set.
The regulating valve, with by-pass flame used on the GGT-style griddles, works best at
temperatures above 300 degrees F. If you need temperatures below 300 deg. F, the by-pass flame can be
turned off.
To turn off the by-pass flame, turn the adjuster screw clockwise until it meets resistance.
The valve will still regulate the temperature with the by-pass turned off.
more than one turn. Turning the adjuster screw to far counter-
clockwise will allow a gas leak around the screw that will cause a fire hazard.
To Recalibrate the Griddle Control:
By-Pass
Adjuster
Calibration
Stem
Retainer-Calibration
Marks
1.
Recalibration should not be undertaken until the by-
pass flame has been adjusted.
2.
Light unit and set dial to the 350 degrees F. After the
burner has been on about 15 minutes, check
temperature. Continue to check the temperature at 5
minute intervals until 2 successive readings
are within 5 degrees of each other. The control
should be recalibrated if your readings are not within
10 degrees of the dial setting.
3.
If recalibration is required, the additional steps to be
taken are:
a. Remove the dial and D-stem. Push the calibration
stem inward with a screwdriver, while holding the
calibration stem firmly in, turn slowly clockwise to
obtain a lower temperature or counter-
clockwise for a higher temperature. Each mark on the
retainer represents 25 degrees in temperature.
Replace dial and D-stem.
b. Set dial at
degree mark. Check temperature
again, as instructed above. If the temperature is not
within 20 degrees of the dial setting (400 deg.), It
means that the sensing element is inoperative and
the control should be replaced.
Turning the calibration stem to far will
disassemble the inside of the valve. This negates the
warranty.
400
NOTE:
*
