PARTS AND SERVICE MANUAL GAS INFRARED CHARBROILER

MODELS

VTEC14

VTEC25

VTEC36

VTEC48

VTEC60

                             VTEC48

RECOMMENDED SPARE PARTS

SERVICE

INTRODUCTION

This manual is prepared for the use of trained service technicians and should only be used by those who are properly qualified. This manual is not intended to be all encompassing. You should read, in its entirety, the repair procedure you wish to perform to determine if you have the necessary tools, instruments and skills required to perform the procedure. Procedures for which you do not have the necessary tools, instruments and skills should not be attempted.

Procedures in this manual will apply to all VTEC models unless specified. Pictures and illustrations can be of any model unless the picture or illustration needs to be model specific.

INSTALLATION

Generally, installations are made by the dealer or contracted by the dealer or owner. Detailed installation instructions are included in the Installation and Operation Manual that is sent with each unit. However, it should be noted that an improperly installed unit, can lead to premature component failures and poor performance. All VTEC models must be installed with an externally mounted regulator.

OPERATION

Detailed operation instructions are included in the Installation & Operation Manual sent with each unit and are also available at www.vulcanequipment.com .

CLEANING

Detailed cleaning procedures are included in the Installation & Operation manual sent with each unit. All places where oil, grease or food can accumulate must be kept clean at all times.

LUBRICATION

All valves, at the first sign of sticking, should be lubricated by a trained technician using high temperature grease. Frequency will be largely dependent on customer usage.

SPECIFICATIONS

All VTEC models are equipped with rotary, piezo spark igniters and 22,000 BTU/HR burners as standard equipment. One burner is used for every 12 inches of broiling surface. The VTEC does not utilize pilots; the burners ignite directly from the peizo igniters or manually via an outside ignition source. Natural gas models are to operate at 4.0″ W.C. manifold pressure and LP models at 10.0″ W.C. manifold pressure with all burners on.

The charbroiler and its parts are hot. Use care when operating, cleaning or servicing the charbroiler.

Shut off the gas supply before servicing the unit.

GAS PRESSURE MEASUREMENT

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.
2. Remove crumb tray. Remove pressure tap plug underneath manifold pipe at right. Fig. 1.

3. Attach manometer at pressure tap point.

4. Turn main gas shut-off ON ,Ignite all burners and leave on MAX setting while checking gas pressure. See I&O Manual F-38330.

5. Turn all the equipment on the same supply line on.

6. Gas pressure should be 4” W.C for natural gas units and 10” W.C. for LP gas units.

7. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position (clockwise until stops).

8. Disconnect manometer and reinstall pressure tap plug and crumb tray.

All gas supply connections and any pipe joint compound must be resistant to the action of propane gases.

Prior to lighting, check all joints in the gas supply line for leaks. Use soap and water solution. Do not use an open flame.

GAS PRESSURE REGULATOR

A gas pressure regulator is supplied with the charbroiler and should be set at 4” Water Column (W.C.) for natural gas, and 10” W.C. for propane gas. Minor adjustments may be required based on site specific gas pressure.

The regulator should be installed as close to the charbroiler on the gas supply line as possible. Make sure that the arrow on the underside of the regulator is oriented in the

direction of gas flow to the broiler (Fig. 3) and the regulator is positioned with the vent limiter and adjustment screw cover upright (Fig. 4). The vent limiter should be kept free of grease and debris to prevent clogging and poor performance.

Fig. 3

 Fig. 4

The minimum supply pressure (upstream of the regulator) should be 7-9” W.C. for natural gas and 11-12” W.C. for propane gas. At no time should the charbroiler be connected to supply pressure greater than ½ psig (3.45 kPa) or 14” W.C.

GAS PRESSURE REGULATOR ADJUSTMENT

1. Remove adjustment cover. See Fig. 4.
2. Turn the adjustment screw clockwise to increase pressure and counterclockwise to decrease pressure.
3. Reinstall adjustment cover.

BURNER VALVE REPLACEMENT

Shut off the gas supply before servicing the unit.

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.

2. Remove inner shield assembly, knobs, shelf and front panel.

3. Disconnect all igniter wires at the igniter electrodes.

4. Remove all burner orifices. Fig 5.

5. Remove manifold retaining screw at back of unit. Fig. 6.

6. Remove manifold assembly from unit. Fig 7.

7. Measure distance between manifold pipe and valve to reference for reassembly later.

8. Unthread orifice extension and burner valve from manifold.

9. Reverse steps to reinstall burner valve. The distance between the burner valve and manifold should match previous dimensions so that the burner valve outlet is centered in the burner venturi. The gap between the orifice and the end of the burner venturi should be no more than ¼”. Refer to Fig. 8 for correct burner valve and orifice positioning.

All gas supply connections and any pipe joint compound must be resistant to the action of propane gases.

Prior to lighting, check all joints in the gas supply line for leaks. Use soap and water solution. Do not use an open flame.

BURNER BOX ASSEMBLY REPLACEMENT

Shut off the gas supply before servicing the unit.

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.
2. Remove inner shield assembly, emitter panel, grate and shelf.

3. Remove burner orifice and bolt securing the front burner bracket. Fig. 9.

4. Remove screws that are securing burner to the adjacent burner at top of the reflectors. Fig. 10.

5. Slide burner box assembly to the rear of unit until the bottom burner bracket clears the rear support bracket, then lift up and out. See Fig. 10 and Fig. 11.

6. Reverse steps to reinstall burner box assembly. Refer to Fig. 8 on page 9 for correct burner valve And orifice positioning.

The charbroiler and its parts are hot. Use care when operating, cleaning or servicing the charbroiler.

BURNER REPLACEMENT

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.
2. Remove inner shield assembly, emitter panel, grate and shelf.
3. Remove the four nuts that are securing the burner to the burner box assembly. Fig. 12.
4. Lift the burner slightly, then slide to the rear of the unit and lift out. Fig. 12.

IGNITER ELECTRODE REPLACEMENT

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.
2. Remove inner shield assembly and shelf
3. Disconnect electrode wire.
4. Remove screw and nut from electrode bracket. Fig. 13.
5. Pull electrode assembly from burner and separate bracket from electrode.
6. Reverse steps to reinstall electrode.

ROTARY IGNITER REPLACEMENT

1. Turn the main gas shut-off valve and the individual burner control knobs to the OFF position.
2. Remove shelf and igniter knob.
3. Disconnect electrode wires and grounding wire.
4. Remove screws and nuts securing igniter to front panel. Fig. 14
5. Reverse steps to reinstall igniter. It is important to note that any igniter terminal not connected to an electrode wire, should be connected to a grounding wire.

TROUBLE SHOOTING