Vulcan-Hart VULCAN 36IRB Oven User Manual


 
SERVICE PROCEDURES AND ADJUSTMENTS
PILOT FLAME HEIGHT
1. Locate the pilot adjustment screws below the
burner control knobs (one on each side) on the
front of broiler. It is not necessary to remove the
manifold cover as adjustment access holes are
provided in the panel.
Fig. 33
2. Locate the pilots at the top of the broiler heating
area.
3. Monitor the pilots flame and burner lighting. Pilot
is in adjustment when it will stay on continually
and lights the burners without delayed ignition.
4. If adjustment is necessary, rotate the screw
clockwise to decrease and counterclockwise to
increase flame height.
RADIANT BURNER AIR SHUTTER
ADJUSTMENT (36RB/C36RB)
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.
To correct this condition, loosen the shutter screw and
rotate the air shutter open until the flame begins to lift
from the burner, then close the shutter slightly and
tighten the shutter screw. A proper flame should be
blue in color, well-defined and seated on the burner
port. A white-blue flame is a result of excessive
primary air.
NOTE: The factory default air shutter positions are
half open natural; full open propane.
Fig. 34
INFRARED BURNER (36IRB/
C36IRB)
Adjustment
The only adjustment for the Infared burner is the gas
manifold pressure. Verify the pressure is set correctly
as outlined under
REGULATOR ADJUSTMENT.
Flame Appearance
When the Infared burner first lights you should see a
small rolling blue flame, which will clear up after the
burner warms. Once warm, a low profile orange flame
is the best description of the Infared burner flame. In
some cases, if the burner is operating correctly, you
may not be able to see the actual flame. Instead you
will see the glow of the ceramic bricks in the burner.
REGULATOR ADJUSTMENT
Shut off the gas before servicing the
unit.
NOTE: Regulators come preset, but should be
checked anytime one is installed. Before adjusting
regulator, check incoming gas line pressure. Incoming
pressure must be 6-14" W.C. for natural gas and
11-14" W.C. for propane gas. If incoming pressure is
not correct, have the gas source checked and
adjusted as necessary. Make sure the regulator is
mounted in the horizontal position with the arrow
pointing in the direction of gas flow. See
GAS
SALAMANDER BROILERS RADIANT AND INFRARED - SERVICE PROCEDURES AND ADJUSTMENTS
Page 13 of 17 F45530 (0814)