INSTALLATION &
OPERATION MANUAL
GS, GL & GT SERIES
FULLY STEAM JACKETED GAS KETTLES
MODEL
GS25E ML-52633
GS30E ML-52634
GL40E ML-52635
GS60E ML-52660
GL80E ML-52637
GT100E ML-52638
GT125E ML-52639
GT150E ML-52640
GL Series Kettle
VULCAN-HART COMPANY, P.O. BOX 696, LOUISVILLE, KY 40201-0696, TEL. (502) 778-2791
FORM 30960 Rev. B (Oct. 2003)
www.vulcanhart.com
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.
© VULCAN-HART COMPANY, 2003
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TABLE OF CONTENTS
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation Codes and Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Gas Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Testing the Gas Supply System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Flue. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Faucet Bracket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Before First Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Controls — Kettles With Electronic Ignition (Current Construction) . . . . . . . . . . . . . . . 7
Controls — Kettles With Electronic Ignition (Prior Construction) . . . . . . . . . . . . . . . . . 8
Controls — Kettles With Manual Pilot Light (Prior Construction) . . . . . . . . . . . . . . . . . 8
Kettle Features — Common To All Constructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Food Draw-Off Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Turning On a Kettle Equipped With Electronic Ignition . . . . . . . . . . . . . . . . . . . . . . . . 10
Turning On a Kettle Equipped With a Manual Pilot Burner . . . . . . . . . . . . . . . . . . . . . 10
Shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Daily — Kettle Food Draw-Off Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Pressure Relief Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Low Water Cut-Off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Jacket Water & Jacket Water Treatment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Hood Ventiliation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Service and Parts Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
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Installation, Operation and Care of
GS, GL & GT SERIES
FULLY STEAM JACKETED GAS KETTLES
KEEP THESE INSTRUCTIONS FOR FUTURE USE
GENERAL
Your Vulcan steam jacketed kettle is produced with quality workmanship and material. Proper
installation, usage and maintenance will result in many years of satisfactory performance.
Vulcan-Hart Company suggests that you thoroughly read this entire manual and carefully follow
all of the instructions provided.
INSTALLATION
Prior to installation check the electrical service and type of gas supply (natural or propane) to
make sure they agree with the specifications on the machine data plate located on the lower-left
inside front cover.
UNPACKING
This kettle was 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 kettle is found to be damaged, save the packaging
material and contact the carrier within 15 days of delivery.
LOCATION
Position the kettle in its final location. Check that there are sufficient clearances for operating
and servicing the kettle, and for proper clearance of the cover when raised. Keep the kettle free
and clear from all combustible substances. Minimum clearance from combustible and noncombustible construction is 2" (
The kettle draw off valve should be located near a floor drain.
Do not obstruct the flow of air into and around the kettle. This air flow is necessary for proper
combustion of gases and for ventilation of the kettle. Provisions for ventilation and incoming air
supply for the equipment in the room must be in accordance with the National Fuel Gas Code
ANSI Z223.1 (latest edition).
5.0 cm) at the rear and 6" (15.2 cm) at each side.
LEVELING
Place a spirit level on the rim of the kettle with the cover open. Turn the feet in or out to level the
kettle in both the left-to-right and front-to-rear directions.
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