Duke IRHU-12XXXX -230 Installation Manual
IRHU
INFRARED
HOLDING UNIT
U.S Patent 7105779, 7227102
Other U.S. and Foreign Patents Pending
MODELS
Owner’s Manual
IRHU-12
IRHU-22
IRHU-23
IRHU-41
Please read this manual completely before attempting
to install, operate or service this equipment
This manual is Copyright © 2009 Duke Manufacturing Co. All rights reserved.
Reproduction without written permission is prohibited. Duke is a registered
trademark of the Duke Manufacturing Co.
Duke Manufacturing Co.
2305 N. Broadway
St. Louis, MO 63102
Phone: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074
www.dukemfg.com
P/N 159038M
Installation and Operation of IRHU
TABLE OF CONTENTS
MANUFACTURER’S INTRODUCTION .............................................................................3
IMPORTANT SAFETY INSTRUCTIONS ...........................................................................4
SPECIFICATIONS .............................................................................................................5
MAIN FEATURES ..............................................................................................................8
IRHU-12, IRHU-22 & IRHU-23 Features ....................................................................8
IRHU-41 Features ......................................................................................................8
INSTALLATION .................................................................................................................9
UNPACKING UNIT ..................................................................................................... 9
UNIT PLACEMENT ....................................................................................................9
MINIMUM CLEARANCES ..........................................................................................9
EARTHING INSTRUCTIONS .....................................................................................9
EXTERNAL EQUIPOTENTIAL EARTHING TERMINAL (EXPORT ONLY) ................ 9
DIGITAL TIMERS ..............................................................................................................9
DIGITAL TIMER DISPLAYS .......................................................................................9
OPERATING INSTRUCTIONS ........................................................................................10
PROGRAMMING MODE ..........................................................................................10
Settings .............................................................................................................10
SETUP MODE .......................................................................................................... 11
Settings .............................................................................................................11
CARE AND CLEANING ...................................................................................................12
CLEANING GUIDE AND CHECKLIST – DAILY .......................................................12
Procedure ..........................................................................................................12
Inspection Checklist ..........................................................................................12
TROUBLESHOOTING ....................................................................................................13
TESTING AND TROUBLESHOOTING GUIDE ........................................................ 13
Pan Status Keyboard Test ................................................................................. 13
Station Interface Unit Power ..............................................................................13
Service Hot-Line ................................................................................................13
PARTS LISTS AND EXPLODED VIEWS ........................................................................14
IRHU-12, IRHU-22 & IRHU-23 .................................................................................14
IRHU-41 ...................................................................................................................16
WIRING DIAGRAMS .......................................................................................................18
CUSTOMER ASSISTANCE ............................................................................................. 22
2
Installation and Operation of IRHU
MANUFACTURER’S INTRODUCTION
The Duke IR Holding Unit was developed in response
to the need for extended food-holding capabilities to
provide consistently high, “just cooked” food quality.
The Duke IR Holding Unit utilizes Duke’s patented
“Infra Red” holding technology that provides even
heat distribution to food pans. This allows fried foods
to be held for extended periods without noticeable
degradation of quality, reducing food scrap/waste.
Supplier Name Duke Manufacturing Co
Address 2305 N. Broadway
St. Louis, MO 63102
Model #
NOTE: XXXX
denotes
programming
code.
Serial #
Date Received
Date Installed
Telephone 800-735-DUKE (3853)
IRHU-12XXXX-208
IRHU-12XXXX-230
IRHU-12XXXX-240
IRHU-22XXXX-208
IRHU-22XXXX-230
IRHU-22XXXX-240
IRHU-23XXXX-208
IRHU-23XXXX-230
IRHU-23XXXX-240
IRHU-41XXXX-208
IRHU-41XXXX-230
IRHU-41XXXX-240
The self contained, individually formed, sealed
compartments of the Duke IR Holding Unit eliminate
food odor and taste transfer. Because the compartments
are sealed, no disassembly is required for cleaning and
product changes.
The unique design of the Duke IR Holding Unit allows
the IR energy to be programmed for each compartment.
The holding prole is preset at the factory. This reduces
the likelihood of inconsistent performance between
restaurant locations.
314-231-1130
Fax 314-231-5074
Service Referral
#
Local Service
Name
Local Service #
3
Installation and Operation of IRHU
IMPORTANT SAFETY INSTRUCTIONS
:
GENERAL WARNING -
Indicates information important
to the proper operation of the
equipment. Failure to observe
may result in damage to
the equipment and/or severe
bodily injury or death.
:
ELECTRICAL WARNING Indicates information relating
to possible shock hazard.
Failure to observe may result
in damage to the equipment
and/or severe bodily injury or
death.
:
HOT SURFACE WARNING Indicates information important
to the handling of equipment
and parts. Failure to observe
caution could result in
personal injury
CAUTION:
GENERAL CAUTION -
Indicates information important
to the proper operation of the
equipment. Failure to observe
may result in damage to the
equipment.
In addition to the warnings and cautions in this
manual, use the following guidelines for safe operation
of the unit.
• Read all instructions before using equipment.
• For your safety, the equipment is furnished with a properly
grounded cord connector. Do not attempt to defeat the
grounded connector.
• Install or locate the equipment only for its intended use as
described in this manual. Do not use corrosive chemicals in
this equipment.
• Do not operate this equipment if it has a damaged cord or
plug, if it is not working properly, or if it has been damaged or
dropped.
• This equipment should be serviced by qualied personnel
only. Contact the nearest Duke authorized service facility for
adjustment or repair.
• Do not block or cover any openings on the unit.
• Do not immerse cord or plug in water.
• Keep cord away from heated surfaces.
• Do not allow cord to hang over edge of table or counter.
• Inspect glass daily for chips, cracks, or breaking. Discard all
food and notify manager if any chips, cracks, or broken glass
are found. Do not use equipment. All glass must be in good
condition before using equipment to hold food.
The following warnings and cautions appear throughout
this manual and should be carefully observed.
• Turn the unit off, disconnect the power source and allow unit
to cool down before performing any service or maintenance on
the unit.
• The procedures in this manual may include the use of chemical
products. You must read the Material Safety Data Sheets
before using any of these products.
• The unit should be grounded according to local electrical codes
to prevent the possibility of electrical shock. It requires a
grounded receptacle with separate electrical lines, protected by
fuses or circuit breaker of the proper rating.
• Disposal of the unit must be in accordance with local
environmental codes and/or any other applicable codes.
• SAVE THESE INSTRUCTIONS
4
Installation and Operation of IRHU
Twist Lock Plug
“Schuko” Plug
2 1/4"
(58.06 mm)
1 1/2"
(38.10 mm)
10 3/8"
(262.84 mm)
33"
(839.77 mm)
32 7/8"
(835.03 mm)
23 3/4"
(603.25 mm)
509L
COOKING
APPLIANCE
DE CUISINE
UNDERWRITERS LABORATORIES INC.
IN ACCORDANCE WITH
NSF NO. 4 1999
SPECIFICATIONS
SHIPPING
MODEL
IRHU-12XXXX-208 120lbs/55 Kg 208 6.5 1350 50/60
IRHU-12XXXX-230 230 5.9
IRHU-12XXXX-240 240 5.6
IRHU-22XXXX-208 170lbs/79 Kg 208 13 2700
IRHU-22XXXX-230 230 11.7
IRHU-22XXXX-240 240 11.3
IRHU-23XXXX-208 245lbs/111 Kg 208 19.5 4050
IRHU-23XXXX-230 230 17.6
IRHU-23XXXX-240 240 16.9
IRHU-41XXXX-208 175lbs/80 Kg 208 13 2700
IRHU-41XXXX-230 230 11.7
IRHU-41XXXX-240 240 11.3
WEIGHT
VOLTAGE AMPS WATTS HZ
IRHU-12
5
Installation and Operation of IRHU
Twist Lock Plug
“Schuko” Plug
2 5/8"
(65.54 mm)
1 1/2"
(38.10 mm)
23 3/4"
(603.25 mm)
33"
(839.77 mm)
32 7/8"
(835.03 mm)
23 3/4"
(603.25 mm)
15"
(380.31 mm)
509L
COOKING
APPLIANCE
DE CUISINE
UNDERWRITERS LABORATORIES INC.
IN ACCORDANCE WITH
NSF NO. 4 1999
Twist Lock Plug
“Schuko” Plug
(603.25 mm)
(1214.81 mm)
(1219.17 mm)
(603.25 mm)
(380.31 mm)
509L
COOKING
APPLIANCE
DE CUISINE
UNDERWRITERS LABORATORIES INC.
NSF NO. 4 1999
2 1/4"
(58.06 mm)
1 1/2"
(38.10 mm)
IHRU-22
6
IHRU-23
Installation and Operation of IRHU
Twist Lock Plug
“Schuko” Plug
2 1/8"
(53.98 mm)
2 1/2"
(63.89 mm)
29 7/8"
(759 mm)
17 7/8"
(454.96 mm)
1 1/8"
(29.91 mm)
23 5/8"
(601.40 mm)
509L
LISTED
APPLIANCE
DE CUISINE
ALSO CLASSIFIED BY
UNDERWRITERS LABORATORIES INC.
IN ACCORDANCE WITH
NSF NO. 4 1999
IHRU-41
7
Installation and Operation of IRHU
123
5 4
123
5 4
MAIN FEATURES
IRHU-12, IRHU-22 & IRHU-23 FEATURES
IRHU-12, IRHU-22 & IRHU-23 Front View
1. Power ON/OFF Switch
2. Digital Pan Timer Keyboard
3. Pan Stop (Note: the style of pan stop varies by
model)
IRHU-41 FEATURES
IRHU-12, IRHU-22 & IRHU-23 Rear View
4. Programming Connection Port
5. Power Cord with Strain Relief
IRHU-41 Front View
1. Power ON/OFF Switch
2. Digital Pan Timer Keyboard
3. Pan Stop (Note: the style of pan stop varies by
model)
IRHU-41 Rear View
8
4. Programming Connection Point
5. Power Cord with Strain Relief
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