Vulcan-Hart ML-135520, HGM Series, GHCB Series, HGB34, HGB50 Operation Manual

HGB(M) AND GHCB
GAS CHARBROILERS

MODELS

HGB34 ML-135520
HGB50 ML-135521
HGB60 ML-135522
HGB34M ML-135524
HGB50M ML-135525
GHCB34S ML-135526

INSTALLATION &

OPERATION MANUAL

GHCB51S ML-135527

PRIOR MLS COVERED
IN THIS CATALOG

HGB34 ML-27850
HGB50 ML-27851
HGB60 ML-27852
HGB71 ML-27853
HGB34M ML-27885
HGB50M ML-27886

For additional information on Vulcan-Hart or to locate an authorized parts

and service provider in your area, visit our website at www.vulcanhart.com

HGB60M ML-27887
HGB71M ML-27888
GHCB34S ML-52245
GHCB51S ML-52247
GHMCB34 ML-52244
GHMCB51 ML-52246

VULCAN-HART
DIVISION OF ITW FOOD EQUIPMENT GROUP, LLC

WWW.VULCANHART.COM

P.O. BOX 696, LOUISVILLE, KY 40201-0696

TEL. [phone]

FORM 35600 Rev. A (2-05)

IMPORTANT FOR YOUR SAFETY

THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL GAS
EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND
ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.

POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE
EVENT THE SMELL OF GAS IS DETECTED. THIS INFORMATION CAN BE OBTAINED
FROM THE LOCAL GAS SUPPLIER.

IMPORTANT

IN THE EVENT A GAS ODOR IS DETECTED, SHUT DOWN
UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL
GAS COMPANY OR GAS SUPPLIER FOR SERVICE.

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPORS OR LIQUIDS IN THE VICINITY OF THIS OR ANY
OTHER APPLIANCE.

WARNING: IMPROPER INSTALLATION, ADJUSTMENT,
ALTERATION, SERVICE OR MAINTENANCE CAN CAUSE
PROPERTY DAMAGE, INJURY OR DEATH. READ THE
INSTALLATION, OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR
SERVICING THIS EQUIPMENT.

IN THE EVENT OF A POWER FAILURE, DO NOT ATTEMPT TO
OPERATE THIS DEVICE.

MODULAR CHARBROILERS MUST BE MOUNTED ON NONCOMBUSTIBLE LEVEL SURFACE.
LEGS AND CASTERS ARE NOT AVAILABLE ON MODULAR CHARBROILERS.

© VULCAN-HART, 2005

– 2 –

Installation, Operation and Care of

HGB(M) and GHCB Gas Charbroilers

SAVE THESE INSTRUCTIONS

GENERAL

Vulcan-Hart Gas Charbroilers feature heavy-duty, cast-iron burners; input rating is 16,000 BTU/hr. per
burner. Each burner is controlled by an adjustable gas valve. Baffles suspended beneath the burners
reflect the heat upward, maintaining a cool zone under the burner. Special cast-alloy radiants are
located directly above each burner to maintain uniform temperature. Radiants are easily removed for
cleaning when cool.

5

Heavy-duty, cast-iron top grates (5
grid surface to be level or sloped. Grooves, cast in the top grates, permit fat runoff and reduce flaring
when tilted toward the front.

The gas control valves can be adjusted to provide ideal sectional broiling results.

HGB AND GHCB SERIES CHARBROILERS

/16" wide) (135 mm) are reversible to allow all or part of the cooking

Model Width (inches) (mm) Number of Burners Btu Input Rating

HGB34(M)/GHCB34S 34 (864) 6 96,000

HGB50(M) 50 (1270) 9 144,000

GHCB51S 51 (1295) 9 144,000

HGB60(M) 605/8 (1539) 12 192,000

HGB71(M) 713/8 (1814) 14 224,000

ACCESSORIES

• Stainless steel splasher guard (HGB and HGBM only)

• 12" work shelf (HGB and HGBM only)

• Four swivel casters (HGB and GHCB only)

• Griddle plate 18" D x 13

• Banking kit—joins any two charbroilers together

• Grate lifter

• Rod grate (

• Rod grate scraper

• Flexible gas hose with quick disconnect and restraining device. (GHCB) (Consult price book
for available sizes.)

1

/2" steel rod on 3/4" centers) in lieu of cast-iron grate

3

/4" W x 1/2" Thk. (HGB and HGBM only)

– 3 –

INSTALLATION

Before installing, verify that the type of gas (natural or propane) agrees with the specifications on the
data plate located behind the lower front cover, riveted to the center support of the burner box bottom
(HGB models), or between the grease pan guides, riveted to the left corner of the lower front cover
(GHCB models). Be sure the unit is built for the installation elevation.

UNPACKING

The charbroiler was carefully inspected before leaving the factory. The transportation company
assumes full responsibility for safe delivery upon acceptance of the shipment. Immediately after
unpacking, check for possible shipping damage. If the charbroiler is found to be damaged after
unpacking, save the packaging material and contact the carrier within 7 days of delivery.

Do not use the drawers or handles to lift or move the charbroiler.

LOCATION

The equipment area must be kept free and clear of combustible substances. A minimum 2" (51 mm) of
clearance to combustibles must be provided at the rear of all broilers; no side clearance is required for
combustibles or noncombustibles. The HGB(M) is to be installed only on noncombustible floors. The
GHCB is suitable for installation on combustible floors.

Install the charbroiler in an area that has sufficient air supply for combustion of the gas at the burners.
Provide adequate clearance for air openings into the combustion chamber. Do not obstruct the flow of
combustion and ventilation air.

Do not permit fans to blow directly at the charbroiler and, wherever possible, avoid open windows next
to the sides or back. Avoid wall-type fans that create air cross currents within the room.

Legs

Legs (6-inch [152 mm] stainless steel) or casters are factory assembled onto the bottom of the
charbroiler as specified on order.

Modular Broilers

Models HGB34M, HGB50M, HGB60M and HGB71M must be installed on a noncombustible, level
counter or stand. No adjustment is provided.

When a modular broiler is installed on a counter, it must be sealed to the counter with an NSF-approved
sealant.

INSTALLATION CODES AND STANDARDS

Install this equipment in accordance with:

In the United States

1. State and local codes, or in the absence of local codes, with:

2. National Fuel Gas Code, ANSI-Z223.1 (latest edition), available from The American Gas
Association, Inc., 1515 Wilson Boulevard, Arlington, VA 22209.

3. National Electrical Code ANSI/NFPA70 (latest edition) (if applicable).

– 4 –

In Canada

1. Local codes.

2. CSA B149.1 Natural Gas and Propane Installation Code.

3. CSA C22.1 Canadian Electrical Code.

The above are available from the Canadian Standard Association, 5060 Spectrum Way, Suite 100,
Mississauga, Ontario, Canada L4W 5N6.

Casters (Optional)
Optional casters may be obtained. Appliance will require four (4) swivel casters, two (2) of which must

be braking casters.

Appliances Mounted on Casters

Appliances mounted on casters must use a flexible connector
(not supplied by Vulcan) that complies with the Standard for
Connectors for Movable Gas Appliances, ANSI Z21.69 •
CSA 6.16 and a quick-disconnect device that complies with
the Standard for Quick-Disconnect Devices for Use With
Gas Fuel, ANSI-Z21.41 • CSA 6.9. In addition, adequate
means must be provided to limit movement of the appliance
without depending on the connector and the quick­disconnect device or its associated piping to limit appliance
movement. Attach the restraining device at the rear of the
appliance as shown in Fig. 1.

If disconnection of the restraint is necessary, turn off the
gas supply before disconnection. Reconnect this restraint

Fig. 1

prior to turning the gas supply on and returning the aplliance
to its installation position.

Note: If the appliance is installed on casters and is moved for any reason, it is recommended that the
appliance be releveled front to back and side to side to achieve desired cooking results. If the casters
supplied are not leveling type casters, then the flooring must be adjusted or the appliance may need
to be moved to a level location of operation.

Battery Installation (GHCB Only)

Since January 5, 1998, Vulcan-Hart appliances have
changed from using Stockham gas unions to Ward (Fig. 2).
If you are installing a new battery range to an existing field
appliance, the union on the existing field appliance must be
checked against the union being used on the new range.
The union manufacturer's name around the face surface of
the union nut must match. If the new range has been
shipped using a Ward union and the old appliance has
something different—i.e., Stockham—it must be replaced
with a Ward union. Failure to replace this union could result
in a gas leak.

Extra Ward unions must be ordered through an Authorized
Vulcan Parts Depot.

Fig. 2

– 5 –

ASSEMBLY

Burners, radiants and top grates shipped with the
appliance will be packaged in a box within the
cabinet section of a cabinet base model. These
items will be packaged in a box and shipped in the
top of the appliance on open base and modular
models. These items must be assembled during
installation. See (Fig. 3).

Fig. 3

GAS CONNECTIONS
CAUTION: All gas supply connections and any pipe joint compound must be resistant to the

action of liquefied petroleum gases.

The gas inlet location for the GHCB broiler is located at the middle rear of the broiler. The gas inlet
location for the HGB broiler is in the rear, offset to the left side of the broiler. Codes require that a gas
shutoff valve (not included) be installed in the gas line ahead of the charbroiler. The gas supply line must

1

/4" (32 mm) NPT (inside diameter). Make sure the pipes are clean and free of obstructions, dirt and

be 1
piping compound.

WARNING: PRIOR TO LIGHTING, CHECK ALL JOINTS IN THE GAS SUPPLY LINE FOR LEAKS.
USE SOAP AND WATER SOLUTION. DO NOT USE AN OPEN FLAME.

After piping has been checked for leaks, fully purge gas pipes to remove air.

GAS PRESSURES AND ORIFICES

The standard orifices are set at 6" W.C. (Water Column) pressure for natural gas and 10" W.C. (Water
Column) pressure for propane.

TESTING THE GAS SUPPLY PIPING SYSTEM

When test pressures exceed

1

/2 psig (3.45 kPa), the charbroiler and an individual shutoff valve must

be disconnected from the gas supply piping system.

1

When test pressures are

/2 psig (3.45 kPa) or less, the charbroiler must be isolated from the gas supply

piping system by closing its individual shutoff valve.

– 6 –

LEVELING THE CHARBROILER

Once gas connections have been made, place a spirit level on top of the charbroiler. Adjust the legs
to make sure that the charbroiler is level front to back and side to side in the final installed position.

No adjustment is required for modular broilers.

FLUE CONNECTIONS

The charbroiler must be located under a hood that has an adequate connection to an exhaust duct. The
hood must extend 6" (152 mm) beyond charbroiler sides.

Adequate ventilation must be provided and must comply with NFPA Standard #96 (latest edition) and
with local codes.

Clearance above the charbroiler should be adequate for products of combustion to be removed
efficiently. An 18" (457 mm) minimum clearance should be maintained between the flue vent and the
filters of the hood venting system.

Adequate air should be provided in the kitchen to replace air taken out by the ventilating system. This
will prevent charbroiler function from being affected by a reduced atmospheric pressure.

CLEAN BEFORE FIRST USE

Using a noncorrosive, grease-dissolving cleaner, clean the protective metal oils from all surface parts.
Follow the directions of the cleaner manufacturer. Rinse all parts thoroughly and wipe dry with a soft
clean cloth. Reseason cast-iron parts immediately to prevent rusting.

Seasoning

Lightly season the top grates and the griddle and the backsplash, if present, with a thin layer of cooking
oil. This should also be done after every cleaning.

– 7 –

OPERATION

WARNING: HOT PARTS CAN CAUSE BURNS. USE CARE WHEN OPERATING THE BROILER.

LIGHTING THE MANUAL GAS PILOT

Adjustment of the pilot light must be performed by a qualified Vulcan-Hart installation or service person.
The flame adjustment must be made at the time of installation.

1. Turn main gas supply ON.

2. Wait 30 seconds and, using a lighted taper, light the pilots. The pilot for each burner must be lit
(Fig. 4).

3. If pilot fails to light, turn main gas supply OFF. Wait 5 minutes and repeat.

Fig. 4

Nightly Shutdown

Turn burner valves OFF; pilots will remain lit.

Complete Shutdown

1. Turn burner valves OFF.

2. Turn main gas supply OFF; pilots will go out.

– 8 –