RADIANT BURNER - AIR SHUTTER
ADJUSTMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Shut off the gas before servicing the
unit.
The efficiency of the burner depends on a delicate
balance between the air supply and volume of gas.
Whenever this balance is disturbed, poor operating
characteristics and excessive gas consumption may
occur. An air shutter on the front of the burner controls
the gas mixer balance. A yellow streaming flame on
the burner is an indication of insufficient primary air. A
white-blue flame is a result of excessive primary air. A
proper flame should be blue in color, well-defined and
seated on the burner port.
Fig. 29
1.
2.
Re-connect gas supply to machine then turn the
supply on.
3.
Connect power to machine.
4.
Turn power switch on and rotate temperature
controller knob to call for heat.
5.
With burner lit, observe flame from back of
machine.
A.
If a proper flame is observed as described
in the beginning paragraph, no further
adjustment is necessary.
B.
If flame is yellow tipping and lifting from
burner, continue with procedure to adjust.
6.
Disconnect power and turn gas supply off.
7.
NOTE:
The factory default air shutter positions are
half open natural; full open propane.
8.
Loosen the air shutter screw and hold the shutter
in place to prevent movement.
A.
If flame is yellow streaming, slightly rotate
shutter to open it. Hold shutter in position
and tighten screw to secure the shutter.
B.
If flame is white-blue, slightly rotate shutter
to close it. Hold shutter in position and
tighten screw to secure the shutter.
9.
Install radiant burner.
10. Install back panel.
11. Check for proper operation.
GAS MANIFOLD PRESSURE
ADJUSTMENT
Disconnect the
electrical power to the machine and
follow lockout / tagout procedures.
Shut off the gas before servicing the
unit.
1.
2.
Connect manometer to the pressure check fitting
at the top of gas valve being checked.
3.
Open the needle valve on the pressure check
fitting to allow gas pressure measurement.
VCCG Series Heavy Duty Gas Griddle - SERVICE PROCEDURES AND ADJUSTMENTS
Page 15 of 26
F45533 (1014)
