COMPACT INFRA-RED BROILERS
SERVICE
ADJUSTMENTS
WARNING:
ADJUSTMENTS AND SERVICE WORK MAY BE PERFORMED ONLY BY A QUALIFIED
TECHNICIAN WHO IS EXPERIENCED IN AND KNOWLEDGEABLE WITH THE OPERATION
OF COMMERCIAL GAS COOKING EQUIPMENT. HOWEVER, TO ASSURE YOUR
CONFIDENCE. CONTACT YOUR AUTHORIZED SERVICE AGENCY FOR RELIABLE
SERVICE, DEPENDABLE ADVICE OR OTHER ASSISTANCES, AND FOR GENUINE FACTORY
PARTS.
All units are adjusted at the factory. In case of problems in operation at initial installation, check type of gas and manifold
pressure and compare with information listed on the serial plate, located under the broiler grease drawer at the front towards the
left.
PILOT VALVE LOCATIONS:
There is a single adjustment for the pilot burners located through the hole above the valve knob.
Adjustment to pilots is made by turning the small slotted screw on the pilot valve. The flame on each pilot should be large enough to
extend along the flame carrier to the burner surface.
LOW SETTING:
The LO adjustment of the broiler burner valves is by a set screw in the hollow stem of this valve. Turn "IN" or clockwise to
reduce, and "OUT" or counterclockwise to increase. Burner flame on low setting should not flutter or "POP," but should burn
with a dull red and a blue haze.
AIR ADJUSTMENT:
The infra-red burner requires no field air adjustment. However, if a major change in burner operation is noted, check for
obstruction of air flow, as well as around burner air mixer and orifice. Burner performance is effected by (a) orifice size, (b)
pressure, (c) injection, and (d) primary air flow.
Burner orifice must be centered with the air mixer opening.
PRESSURE REGULATOR:
1. The pressure regulator is located in the right-hand compartment.
2. For access to the regulator, remove the right body side.
3. The regulator is preset for 4" W.C. for natural gas, or 10" W.C. for propane gas.
4. This pressure regulator is adjustable. The top of the regulator screws off with a screwdriver, exposing the adjustment
screw. Rotating this screw clockwise increases the pressure.
Natural = Pre-set 4" W.C. Propane = Pre-set 10" W.C.
5. To check line pressure, a connection is provided toward the rear of burner manifold (1/8 NPT). With valve in "OFF"
position, remove pipe plug and connect measuring device. The pressure reading at the manifold, with the burners on high,
should be 4" W.C. on natural gas, or 10" W.C. on propane gas.
COMPLETE SHUT DOWN:
1. Turn off all burner valves.
2. Turn off pilot adjustment valve.
3. Turn off main supply valve. (Valve provided during installation.)
COMPACT INFRA-RED BROILERS
SECTION THREE — SERVICE
PAGE 1
