Vulcan-Hart C24GA6, ML-136021, ML-136022, C24GA10 User Manual
C24GA SERIES
GAS CONVECTION
STEAMERS
MODELS
C24GA6 ML-136021
C24GA10 ML-136022
INSTALLATION &
OPERATION MANUAL
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
VULCAN-HART
DIVISION OF ITW FOOD EQUIPMENT GROUP, LLC
WWW.VULCANHART.COM
3600 NORTH POINT BLVD.
BALTIMORE, MD 21222
F-35423 Rev A. (08-06)
C24GA SERIES GAS CONVECTION STEAMERS
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. IN THE EVENT OF A POWER FAILURE, DO NOT
ATTEMPT TO OPERATE THIS DEVICE.
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.
© VULCAN-HART, 2006
IN THE EVENT OF A POWER FAILURE, DO NOT
ATTEMPT TO OPERATE THIS DEVICE.
— 2 —
C24GA SERIES GAS CONVECTION STEAMERS
TABLE OF CONTENTS
IMPORTANT FOR YOUR SAFETY ............................................................................................................ 2
INTRODUCTION ........................................................................................................................................4
GENERAL ............................................................................................................................................ 4
UNPACKING ........................................................................................................................................ 4
INSTALLATION .................................................................................................................................... 4
INSTALLATION CODES AND STANDARDS....................................................................................... 4
LOCATION - GAS STEAMERS ........................................................................................................... 5
LEVELING AND ANCHORING ............................................................................................................ 5
PLUMBING CONNECTIONS ............................................................................................................... 6
Water Requirements ......................................................................................................................6
Water Treatment ............................................................................................................................. 6
Water Supply Connection .............................................................................................................. 6
Filter System .................................................................................................................................. 6
Drain Connection ........................................................................................................................... 7
GAS SUPPLY CONNECTION.............................................................................................................. 7
Gas Connection Data ..................................................................................................................... 9
Testing The Gas Supply System .................................................................................................. 10
FLUE GAS EXHAUST........................................................................................................................ 10
ELECTRICAL CONNECTION ............................................................................................................ 11
ELECTRICAL DATA ........................................................................................................................... 11
START UP .......................................................................................................................................... 11
OPERATION ............................................................................................................................................. 12
LIGHTING AND SHUTDOWN INSTRUCTIONS ............................................................................... 12
Lighting ......................................................................................................................................... 12
Shutdown...................................................................................................................................... 12
COMPARTMENT CONTROLS ..........................................................................................................12
STARTUP PROCEDURE ................................................................................................................... 13
PREHEATING .................................................................................................................................... 13
OPERATING ....................................................................................................................................... 13
STEAMING ......................................................................................................................................... 13
EXTENDED SHUTDOWN ................................................................................................................. 13
CLEANING ......................................................................................................................................... 14
Cooking Compartment Drains......................................................................................................14
Draining Generator ....................................................................................................................... 14
Compartments .............................................................................................................................. 14
Door Gaskets ...............................................................................................................................14
LEAVE COMPARTMENT DOORS OPEN ......................................................................................... 15
GUIDELINES FOR MAINTAINING STAINLESS STEEL SURFACES ..............................................15
MAINTENANCE .......................................................................................................................................16
Water Treatment System ............................................................................................................. 16
Scale Related Maintenance ......................................................................................................... 16
Draining Generator ....................................................................................................................... 16
Generator Pressure Relief Valve .................................................................................................16
Door Gaskets ...............................................................................................................................16
Flue ............................................................................................................................................... 16
COOKING CHART ...................................................................................................................................17
PRODUCTS TO BE COOKED IN SOLID PANS ............................................................................... 17
PRODUCTS TO BE COOKED IN PERFORATED PANS.................................................................. 18
COOKING HINTS ............................................................................................................................... 19
TROUBLESHOOTING .............................................................................................................................20
SERVICE AND PARTS INFORMATION ............................................................................................ 20
— 3 —
C24GA SERIES GAS CONVECTION STEAMERS
INTRODUCTION
GENERAL
Vulcan convection steamers are produced
with quality workmanship and material. Proper
installation, usage and maintenance will result
in many years of satisfactory performance.
It is suggested that you thoroughly read this
entire manual and carefully follow all of the
instructions provided.
Model C24GA6 can accommodate three
1
/2 " deep (64 mm) steam pans per
2
compartment. Model C24GA10 can
1
accommodate five 2
/2" deep (64 mm) steam
pans per compartment.
The C24GA6 and C24GA10 gas-fired
convection steamers are designed for cooking
vegetables, eggs, and other foods, in
commercial kitchens. Each compartment has
a 0 to 60 minute timer. (The buzzer requires
manual shutoff.) The steamers are equipped
with a cabinet base for floor installation.
C24GA6 C24GA10
Compartments 2 2
Total Number of
1
/2" (64 mm) 6 10
2
Deep Pans
Gas Rating 125,000 125,000
BTU/hr. BTU/hr.
UNPACKING
This steamer was inspected and tested 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 steamer damage
is found, save the packaging material and
contact the carrier within 15 days of delivery.
INSTALLATION
INSTALLER: A manometer (digital or incline
tube) capable of reading pressure in 0.01"
W.C. is required to install this steamer. Failure
to set blower air and gas pressure correctly
will result in burner and lighting failure.
Before installing, verify that the type of gas
(natural or propane) and the electrical supply
required agree with the specifications on the
data plate located on the left edge of the
tabletop. If the supply and equipment
requirements do not agree, do not proceed
with the installation. Contact your dealer or
Vulcan-Hart immediately.
INSTALLATION CODES AND
STANDARDS
In the United States, the Vulcan steamer must
be installed in accordance with:
1. State and local codes.
2. National Fuel Gas Code, ANSI-Z223.1/
NFPA #54 (latest edition). This shall include
but not be limited to: NFPA #54 Section
10.3.5.2 for Venting.
Copies may be obtained from The American
Gas Association Accredited Standards
Committee Z 223, @ 400 N. Capital St. NW,
Washington, DC 20001 or the Secretary
Standards Council, NFPA, 1 Batterymarch
Park Quincy, MA 02169-7471.
3. National Electrical Code, ANSI/NFPA No.
70 (latest edition) available from the
National Fire Protection Association,
Batterymarch Park, Quincy, MA 02269.
Vapor Removal from Cooking Equipment,
4.
NFPA-96 (latest edition) available from NFPA.
— 4 —
C24GA SERIES GAS CONVECTION STEAMERS
In Canada, the steamer must be installed in
accordance with:
1. Local codes.
2. National Fuel Gas Code, CAN/CSA-B149.1
(latest edition) available from the Canadian
Standards Association, 5060 Spectrum Way,
Mississauga, Ontario, Canada L4W 5N6.
3. Canadian Electrical Code, CSA C22.2 (latest
edition) available from the Canadian
Standards Association, 5060 Spectrum Way,
Mississauga, Ontario, Canada L4W 5N6.
LOCATION - GAS STEAMERS
The equipment area must be kept free and
clear of combustible substances.
The recommended clearance for proper
operation is 36" (914 mm) at the front. The
required clearance from combustible or noncombustible construction is 0" at the sides
and back. The recommended clearance for
service access is 18" (457 mm) at the sides
and 6" (152 mm) from the back.
ventilating system. If you have any questions,
contact the ventilation system installer.
An exhaust system should be located directly
above the steamer to exhaust steam, flue
exhaust and heat generated by the steamer.
Do not locate the steamer directly over a
drain.
LEVELING AND ANCHORING
Position the steamer in its final installed
location. Place a level on the horizontal area
of the cabinet. Adjust the feet to level the
steamer in both the left-to-right and front-torear directions.
Steamers should be elevated in the front just
enough, about
proper draining. Do this by rotating the
adjustable feet in the proper direction 1 to 1
turns after leveling. Check drainage in the
steamer compartments by pouring a small
amount of water in the compartment. All the
water should drain.
1
/16" to 1/8" (2 to 3mm) to give
1
/2
Make sure there is an adequate supply of air
in the room to replace air taken out by the
The rear feet have holes in the flanges for
anchor bolts.
— 5 —
C24GA SERIES GAS CONVECTION STEAMERS
PLUMBING CONNECTIONS
WARNING: PLUMBING CONNECTIONS
MUST COMPLY WITH APPLICABLE SANITARY, SAFETY
AND PLUMBING CODES.
Water Requirements
Proper water quality can improve the taste of
the food prepared in the steamer, reduce
liming in the steam generator and extend
equipment life. Local water conditions vary
from one location to another. Ask your
municipal water supplier for details about your
local water supply prior to installation.
Presence of sediment, silica, excess chlorides
or other dissolved solids may lead to a
recommendation for alternate form(s) of water
treatment. Test the water with a TDS meter or the
test strip included with the steamer. Other factors
affecting steam generation are iron content,
amount of chloridation and dissolved gases.
Water Treatment
A local water treatment specialist should be
consulted before installation of steam
generating equipment.
Supply Pressure 20 - 60 psig
Hardness* less than 3 grains
Silica less than 13 ppm
Total Chlorine less than 4.0 ppm
PH range 7 - 8
Undissolved Solids less than 5
microns
*17.1 ppm = 1 grain of hardness
If the water supply fails to meet these
standards, it will be necessary to install a
water conditioner on the generator water feed.
The use of strainers or filters will not remove
minerals from the water.
Water Supply Connection
Connect the treated cold water supply line to
3
/8" NPT inlet at the rear of the steamer.
the
Connect the untreated cold water supply line
1
to the
/8" NPT, also at the rear of the steamer.
NOTE: Models manufactured after June 2006
3
may have
/4" hose connections.
A water filter system is recommended for the
water supply line going to the treated water inlet
of your steamer. Follow the recommendations
for use and installation instructions shipped
with the water filter. If a water filter is not
installed, the steamer or steam generator
warranty will be limited.
Filter System
If you decide to not install a scale reducing
filter system designed for steam equipment
or use another manufacturer’s system other
than recommended by Vulcan Hart, please
use these guide lines.
• If you are going to delime the unit with a
deliming agent recommended for a
pressure steam boiler and stainless steel
generators and you are on city or treated
well water, you still must have a carbon
block filter installed and maintained.
Carbon block filters remove the chlorine
and chloramines disinfectants from the
water. Chlorine and chloramines will erode
the boiler or steam generator and will
result in a vessel failure which is not
covered under warranty.
• Water feed lines to the steamer must be
flushed before final connection. Particles
in the water could build up in the water and
steam valves or clog tubing and
components that maintain the water level
and pressure in the boiler or steam
generator. If the water supply is not free of
sediment or cloudy after several minutes
of flushing, a sediment filter must be
installed before use.
— 6 —
• If you have purchased water filter system
from Vulcan Hart, please follow the
Loading...