Vulcan MGB-3A Service Manual

OPERATING, INSTALLATION,

SERVICE & PARTS MANUAL

FOR MEDIUM DUTY

GAS CHAR BROILERS

MGB-A SERIES

VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. [phone]

FORM 990503 (09-88)

MGB-A OPERATING, INSTALLATION, SERVICE & PARTS

!

IMPORTANT

OPERATING, INSTALLATION AND SERVICE PERSONNEL

Operating information for this equipment has been prepared for use by qualified and/or authorized
operating personnel.

All installation and service on this equipment is to be performed by qualified, certified, licensed and/or
authorized installation or service personnel, with the exception of any marked with a in front of
the part number.

Service may be obtained by contacting the Factory Service Department, Factory Representative or
Local Service Agency.

QUALIFIED AND/OR AUTHORIZED OPERATING PERSONNEL

Qualified or authorized operating personnel are those who have carefully read the information in this
manual and are familiar with the equipment’s functions or have had previous experience with the
operation of the equipment covered in this manual.

QUALIFIED INSTALLATION PERSONNEL

Qualified installation personnel are individuals, a firm, corporation or company which either in person
or through a representative are engaged in, and are responsible for:

1. The installation of gas piping from the outlet side of the gas meter, or the service regulator when

the meter is not provided, and the connection and installation of the gas appliance. Qualified
installation personnel must be experienced in such work, be familiar with all precautions required,
and have complied with all requirements of state or local authorities having jurisdiction. Reference
in the United States of America - National Fuel Gas code ANSI Z223.1 (Latest Edition) In Canada­Canadian Standard CAN1-B149.1 NAT. GAS (Latest Edition) or CAN1-B149.2 PROPANE (Latest
Edition).

2. The installation of electrical wiring from the electric meter, main control box or service outlet to the

electric appliance. Qualified installation personnel must be experienced in such work, be familiar
with all precautions required, and have complied with all requirements of state or local authorities
having jurisdiction. Reference: In the United States of America-National Electrical Code ANSI
NFPA No. 70 (Latest Edition). In Canada-Canadian Electrical Code Part 1 CSA-C22.1 (Latest
Edition).

QUALIFIED SERVICE PERSONNEL

Qualified service personnel are those who are familiar with Vulcan equipment who have been endorsed
by the Vulcan-Hart Corporation. All authorized service personnel are required to be equipped with a
complete set of service parts manuals and stock a minimum amount of parts for Vulcan equipment.

DEFINITIONS

SHIPPING DAMAGE CLAIM PROCEDURE

For your protection, please note that equipment in this shipment was carefully inspected and packed by
skilled personnel before leaving the factory. The transportation company assumes full responsibility for
safe delivery upon acceptance of this shipment.

If shipment arrives damaged:

1. VISIBLE LOSS OR DAMAGE — Be certain this is noted on freight bill or express receipt and signed

by person making delivery.

2. FILE CLAIM FOR DAMAGES IMMEDIATELY — Regardless of extent of damage.

3. CONCEALED LOSS OR DAMAGE — If damage is unnoticed until merchandise is unpacked, notify

transportation company or carrier immediately, and file “concealed damage” claim with them. This
should be done within (15) days of date of delivery is made to you. Be sure to retain container for
inspection.

We cannot assume responsibility for damage or loss incurred in transit. We will, however, be glad to
furnish you with necessary documents to support your claim.

PLEASE RETAIN THIS MANUAL FOR FUTURE REFERENCE

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MGB-A OPERATING, INSTALLATION, SERVICE & PARTS

IMPORTANT NOTES FOR ALL VULCAN APPLIANCES

1. These units are produced with the best possible workmanship and material. Proper installation is vital if best
performance and appearance are to be achieved. Installer must follow the installation instructions carefully.

2. Information on the construction and installation of ventilating hoods may be obtained from the “Standard for the
installation of equipment for the removal of smoke and grease laden vapors from commercial cooking equipment,”
NFPA No 96 (latest edition) available from the National Fire Protection Association, Battery March Park, Quincy
MA 02269.

3. For an appliance equipped with a flexible electric supply cord, the cord is equipped with a three prong (grounding)
plug. This grounding plug is for your protection against shock hazard and should be plugged directly into a properly
grounded three prong recepticle. Do not cut or remove the grounding prong from this plug If the appliance is not
equipped with a grounding plug, and electric supply is needed, ground the appliance by using the ground lug
provided (refer to the wiring diagram).

(FOR GAS APPLIANCES ONLY)

4. Do not obstruct the air flow into and around the appliance. This air flow is necessary for proper combustion of
gases and for ventilation of the appliance. Provisions for ventilation of incoming air supply for the equipment in
the room must be in accordance with National Fuel Gas Code ANSI Z223.1 (latest edition).

5. Do not obstruct the flow of flue gases from the flue duct (when so equipped) located on the rear (or sides) of the
appliance. It is recommended that the flue gases be ventilated to the outside of the building through a ventilation
system installed by qualified personnel.

6. For an appliance equipped with casters, (1) the installation shall be made with a connector that complies with the
Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 (latest edition), and Addenda, Z21.69a (latest
edition), and a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use
With Gas Fuel, ANSI Z21.41 (latest edition), and Addenda, Z21.41a (latest edition) and Z21.41b (latest edition),
and (2) adequate means must be provided to limit the movement of the appliance without depending on the
connector and the quick-disconnect device or its associated piping to limit the appliance movement.

If disconnection of the restraint is necessary, reconnect this restraint after the appliance has been returned to its
originally installed position.

7. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of 1⁄2 psig (3.45 k Pa).

8. The appliance must be isolated from the gas supply system by closing its individual manual shutoff valve during
any pressure testing of the gas supply system at test pressures equal to or less than 1⁄2 psig (3.45 k Pa).

CAUTIONS

FOR YOUR SAFETY
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS
AND LIQUIDS IN THE VICINITY OF THIS EQUIPMENT OR ANY OTHER
APPLIANCE.

1. KEEP THE APPLIANCE FREE AND CLEAR FROM ALL COMBUSTIBLE
SUBSTANCES.

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

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

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MGB-A OPERATING, INSTALLATION, SERVICE & PARTS

MEDIUM DUTY GAS CHAR BROILER - OPERATING,
INSTALLATION, SERVICE AND PARTS MANUAL INDEX

Your Medium Duty Gas Char Broiler is produced with
the best possible workmanship and material. Proper
usage and maintenance will result in many years of

satisfactory performance. The manufacturer suggests
that you thoroughly read this entire manual and carefully
follow all of the instructions provided.

DESCRIPTION PAGE

DEFINITIONS OF PERSONNEL (Operating, Installation & Service) and
SHIPPING DAMAGE CLAIM PROCEDURE (Inside Front Cover)

IMPORTANT NOTES 3
INDEX 4
A. PREPARING FOR INSTALLATION 5
B. GAS SUPPLY 5
C. LIGHTING AND ADJUSTMENT 6-7
D. SERVICE 8
E. REPLACEMENT PARTS LIST— MGB-A 9-11
F. OPERATING AND MAINTENANCE 12

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