Hobart HC24EA5 Owner’s Manual
MODEL HC24EA SERIES
ELECTRIC COUNTERTOP
CONVECTION STEAMERS
ML-136041 HC24EA3 208/240 V. 9.25KW PRO
ML-136042 HC24EA5 208/240 V. 15.75KW PRO
ML-136049 HC24EA3 208/240 V. 8.5KW BASIC
ML-136050 HC24EA3 480 V. 9.25KW PRO
ML-136051 HC24EA3 480 V. 8.5KW BASIC
ML-136052 HC24EA5 208/240 V. 15KW BASIC
ML-136053 HC24EA5 480 V. 15.75KW PRO
ML-136054 HC24EA5 480 V. 15KW BASIC
701 S. RIDGE AVENUE
TROY, OHIO 45374-0001
1-888-4HOBART
www.hobartcorp.com
F-35432 (June 2006)
HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
IMPORTANT FOR YOUR SAFETY
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL
THIS EQUIPMENT, WHO SHOULD PERFORM THE INITIAL FIELD START-UP AND
ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL.
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.
© HOBART, 2006
IN THE EVENT OF A POWER FAILURE, DO NOT
ATTEMPT TO OPERATE THIS DEVICE.
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HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
TABLE OF CONTENTS
IMPORTANT FOR YOUR SAFETY....................................................................................................... 2
INTRODUCTION .................................................................................................................................... 5
GENERAL ......................................................................................................................................... 5
INSTALLATION ................................................................................................................................. 5
UNPACKING ..................................................................................................................................... 5
INSTALLATION CODES AND STANDARDS ................................................................................. 5
LOCATION ........................................................................................................................................ 6
LEVELING FEET .............................................................................................................................. 6
LEVELING ......................................................................................................................................... 6
ANCHORING STEAMER ................................................................................................................. 6
STACKING STAND .......................................................................................................................... 6
ELECTRICAL CONNECTION ......................................................................................................... 7
PLUMBING CONNECTIONS ........................................................................................................... 8
Water Requirements ................................................................................................................. 8
Water Treatment ........................................................................................................................ 8
Water Supply Connection.......................................................................................................... 8
DRAIN CONNECTIONS .................................................................................................................. 8
VENT HOOD .................................................................................................................................... 9
OPERATION .........................................................................................................................................10
CONTROLS ....................................................................................................................................10
Drain Handle (Basic model) .....................................................................................................10
Main Power Switch Light (Professional model) ......................................................................10
Ready Light (Professional model)............................................................................................10
Cooking Light (Professional model) ......................................................................................... 10
Timer ..........................................................................................................................................10
START UP (BASIC MODEL) ..........................................................................................................10
OPERATION .............................................................................................................................11
Drain Handle ........................................................................................................................11
Timer ....................................................................................................................................11
PREHEATING ............................................................................................................................11
STEAMING .................................................................................................................................11
SHUTDOWN .............................................................................................................................11
EXTENDED SHUTDOWN ........................................................................................................11
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HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
TABLE OF CONTENTS (CONTINUED)
START UP (PROFESSIONAL MODEL) ........................................................................................ 11
OPERATION ............................................................................................................................. 12
Main Power Switch Light (Professional model) .................................................................12
Timer ....................................................................................................................................12
Ready Light ..........................................................................................................................12
Cooking Light ....................................................................................................................... 12
PREHEATING ............................................................................................................................12
STEAMING .................................................................................................................................12
SHUTDOWN ............................................................................................................................. 12
EXTENDED SHUTDOWN ........................................................................................................12
CLEANING .............................................................................................................................................13
COOKING COMPARTMENT DRAIN ..............................................................................................13
DRAINING GENERATOR ...............................................................................................................13
COMPARTMENT .............................................................................................................................13
DOOR GASKET .............................................................................................................................. 13
LEAVE COMPARTMENT DOOR OPEN ....................................................................................... 13
GUIDELINES FOR MAINTAINING STAINLESS STEEL SURFACES ........................................... 13
MAINTENANCE ..................................................................................................................................... 15
WATER TREATMENT SYSTEM .................................................................................................... 15
REMOVAL OF LIME SCALE DEPOSITS ...................................................................................... 15
Professional model ...................................................................................................................15
Basic model ............................................................................................................................... 16
DOOR GASKET .............................................................................................................................. 17
DRAINING THE GENERATOR .......................................................................................................17
COOKING HINTS ..................................................................................................................................18
PREPARATION ...............................................................................................................................18
Frozen Food Items....................................................................................................................18
Acceptable Pan Sizes ..............................................................................................................18
COOKING GUIDELINES .................................................................................................................18
PRODUCTS TO BE COOKED IN SOLID PANS ..........................................................................19
PRODUCTS TO BE COOKED IN PERFORATED PANS ...........................................................20
TROUBLESHOOTING .......................................................................................................................... 22
SERVICE AND PARTS INFORMATION ..............................................................................................23
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HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
INTRODUCTION
GENERAL
Hobart 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.
The HC24EA3 and HC24EA5 convection
steamers are single compartment, electric,
pressureless steam cookers with an internal
electric steam generator that maintains water
temperature at approximately 195°F. The
HC24EA3 is rated 8.5 KW (Basic model), and
9.25 KW (Professional model). The HC24EA5
is rated 15 KW (Basic) and 15.75 KW
(Professional).
Model HC24EA3 can accommodate three 2 1/2"
deep (6.4 cm) steam pans. Model HC24EA5 can
accommodate five 2 1/2"deep (6.4 cm) steam
pans. The HC24EA3 and HC24EA5 electric
convection steamers are designed for cooking
vegetables, eggs, and other foods, in commercial
kitchens. The steamer has a 0 to 60 minute timer.
The steamers are designed for countertop
installation.
UNPACKING
This steamer 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 steamer damage is found, save the packaging
material and contact the carrier within 15 days
of delivery.
INSTALLATION CODES AND
STANDARDS
In the United States, the Hobart steamer must
be installed in accordance with:
1. State and local codes.
2. National Electrical Code (ANSI/NFPA No.70,
latest edition) available from the National
Fire Protection Association, Batterymarch
Park, Quincy, MA 02269.
3. Vapor Removal from Cooking Equipment,
(NFPA-96, latest edition) available from
NFPA.
In Canada, the Hobart steamer must be installed
in accordance with:
INSTALLATION
Before installing, verify that the electrical supply
agrees with the specifications on the data plate
located on the back panel. If the supply and
equipment requirements do not agree, do not
proceed with the installation. Contact your dealer
or Hobart immediately.
This unit is shipped pre wired for 208/60/3. 240v
& single phase operation require changes to the
heater connection 240/60/3, 240/60/1 and 208/
60/1. This unit will operate at 60Hz or 50Hz.
1. Local codes.
2. Canadian Electrical Code (CSA C22.2 No.3,
latest edition) available from the Canadian
Standards Association, 5060 Spectrum Way,
Mississauga, Ontario, Canada L4W 5N6.
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HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
LOCATION
Allow space for plumbing and electrical
connections. Minimum clearance is 6" (15.2
cm) on the back for proper air circulation. Allow
adequate access for operating and servicing
the steamer (36" at the front of the steamer, 15"
(38 cm) above the steamer and 18" (45.7 cm)
on right side of steamer).
LEVELING FEET
This steamer is shipped with four 2" leveling
feet. Optional 4" leveling feet are available. The
2" feet can be removed and the optional 4" feet
can be threaded into holes on the bottom of the
unit.
LEVELING
Using a spirit level in the bottom of the steamer,
adjust the leveling feet or the feet on the adjustable
legs to level the steamer side to side with a slight
tilt front to back to allow for proper cavity draining.
After the drain is connected, check for level by
pouring water onto the floor of the compartment.
All water should drain through the opening at the
back of the compartment cavity.
ANCHORING STEAMER
1. Place steamer in the desired location on the
countertop and mark four corners. Remove
the steamer and drill 1/2" holes as indicated in
Figure 1.
2. Apply a bead of RTV or other NSF approved
sealant around the bottom edge of the
steamer. If anchoring the steamer, this
bottom seal is necessary to meet NSF
requirements.
3. Set steamer on countertop and bolt down
securely with 3/8 -16 bolts (not supplied).
Note: Steamer must be installed level side to
side with a slight tilt front to back to allow for
proper draining.
Figure 1.
STACKING STAND
Instruction to install convection steamers on
stacking stand are included with the stacking
stand.
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ELECTRICAL CONNECTION
HC24EA SERIES ELECTRIC COUNTERTOP CONVECTION STEAMERS
WARNING: ELECTRICAL AND GROUNDING
CONNECTIONS MUST COMPLY WITH APPLICABLE PORTIONS
ELECTRICAL
CODE AND/OR OTHER LOCAL
OF THE NATIONAL
The wiring diagram is located on the right side
panel as you face the steamer. This steamer is
hard wired.
ELECTRICAL CODES.
Total Volts Hz Ph KW Per Phase Rated Amps Circuit Fuse
KW
L1-L2 L2-L3 L3-L1 L1 L2 L3
8.5 208 50/60 1 40.87 60 60
8.5 240 50/60 1 35.42 50 50
8.5 208 50/60 3 4.25 2.12 2.12 26.54 26.54 17.70 35 35
8.5 240 50/60 3 2.83 2.83 2.83 20.50 20.50 20.50 30 30
8.5 480 50/60 3 2.83 2.83 2.83 10.30 10.30 10.30 15 15
9.25 208 50/60 1 43.57 60 60
3-Phase Amps per Line
Single Size Size
Phase Amps** or
Circuit
Breaker
(Amps)
Size*
9.25 240 50/60 1 38.54 50 50
9.25 208 50/60 3 4.25 2.69 2.12 26.54 28.88 20.04 40 40
9.25 240 50/60 3 2.83 3.58 2.83 20.45 23.15 23.15 30 30
9.25 480 50/60 3 2.83 3.58 2.83 10.21 11.57 11.57 15 15
15 208 50/60 1 72.12 90 90
15 240 50/60 1 62.50 75 75
15 208 50/60 3 7.50 3.75 3.75 46.84 46.84 31.23 60 60
15 240 50/60 3 5.00 5.00 5.00 36.08 36.08 36.08 50 50
15 480 50/60 3 5.00 5.00 5.00 18.04 18.04 18.04 25 25
15.75 208 50/60 1 74.82 95 95
15.75 240 50/60 1 65.63 85 85
15.75 208 50/60 3 7.50 4.31 3.75 46.84 49.18 33.57 65 65
15.75 240 50/60 3 5.00 5.75 5.00 36.08 38.79 38.79 50 50
15.75 480 50/60 3 5.00 5.75 5.00 18.04 19.40 19.40 25 25
2002 National Electric Code
*Dual Element Time-Delay Fuse or Inverse Time Circuit Breaker
** Circuit Size (minimum) & Fuse/Circuit Breaker Size (maximum) compiled in accordance with the
National Electrical Code (ANSI/NFPA 70), 2002 Edition.
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HC24EA SERIES ELECTRIC COUNTERTOP 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. 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 the test strip
included with the steamer. Other factors
affecting steam generation are iron content,
amount of chloridation and dissolved gases.
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 the
3/4" (19 mm) (male hose thread) inlet. Connect
the untreated cold water supply line to the 3/4"
(19 mm) (male hose thread) inlet marked
UNTREATED WATER.
A water treatment system is recommended for
the water supply line going to the treated water
inlet. Follow the recommendations for use and
installation instructions shipped with the water
filter. If a water treatment system is not installed,
the steam generator warranty may be limited.
A manual shutoff valve must be provided in a
convenient location near the steamer.
Water Treatment
A local water treatment specialist should be
consulted before installation of steam generating
equipment.
Supply Pressure 20 - 60 psig
Hardness* No more than 3 grains
Silica less than 13 ppm
Total Chlorine less than 4.0 ppm
PH range 6.5 - 8
Undissolved Solids less than 5 microns
*17.1 ppm = 1 grain of hardness
DRAIN CONNECTIONS
The drain connection (Figure 2) must be 1 1/2"
(38 mm) down, preferably with one elbow only,
maximum length of 6' and piped to an open gap
type drain.
CAUTION: In order to avoid any back
pressure in the steamer, do not make a
solid connection to any drain. FAILURE
TO DO SO CAN DAMAGE THE STEAMER
AND VOIDS THE WARRANTY.
A vent must be installed to avoid creating a
vacuum or pressure in the cooking chamber.
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