Duke HSHU 13 SERIES User manual

U.S. Patent 6175099, 6262394
Other U.S. and Foreign
Patents Pending
Installation and
Operation Manual
MODEL
HSHU 13 SERIES
HSHU 22 SERIES
HSHU 23 SERIES
HSHU2 22 SERIES
HSHU
(HEAT SINK
HOLDING UNIT)
P/N 158270
REV L 10/30/2017
This manual is Copyright © 2017 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: [phone]
Toll Free: 1-800-735-3853
Fax: [phone]
www.dukemfg.com
CAUTION: Please read this manual completely before attempting
to install, operate or service this equipment

Installation and Operation of HSHU
2

3
Installation and Operation of HSHU
TABLE OF CONTENTS
Important Safety Instructions.......................................................................................................4
Unit Specications.......................................................................................................................7
Electrical Connection................................................................................................................. 11
Installation .................................................................................................................................12
Operation...................................................................................................................................13
Cleaning Instruction...................................................................................................................16
Troubleshooting.........................................................................................................................17
Parts Lists aand Exploded Views ..............................................................................................20
Wire Schematics........................................................................................................................25

Installation and Operation of HSHU
4
THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED
TO INSTALL ELECTRICAL EQUIPMENT, WHO SHOULD PERFORM THE
INITIAL FIELD STARTUP AND ADJUSTMENTS OF THE EQUIPMENT
COVERED BY THIS MANUAL.
READ THIS MANUAL THOROUGHLY BEFORE OPERATING,
INSTALLING OR PERFORMING MAINTENANCE ON THE EQUIPMENT.
: Failure to follow all the instructions in this manual
can cause property damage, injury or death.
: Improper installation, adjustment, alteration, service or
maintenance can cause property damage, injury or death.
: (US/CAN ONLY) Electrical connections should be
performed only by a certied professional.
: Electrical and grounding connections must comply
with the applicable portions of the National Electric Code and/or
all local electric codes. Failure to comply with this procedure can
cause property damage, injury or death.
: Before connecting the unit to the electrical supply,
verify that the electrical and grounding connections comply with
the applicable portions of the National Electric Code and/or other
local electrical codes. Failure to comply with this procedure can
cause property damage, injury or death.
: Before connecting the unit to the electrical supply,
verify that the electrical connection agrees with the specications
on the data plate. Failure to comply with this procedure can cause
property damage, injury or death.
: UL73 grounding instructions: This appliance must be
connected to a grounded, metal, permanent wiring system. Or
an equipment-grounding conductor must be run with the circuit
conductors and connected to the equipment-grounding terminal or
lead on the appliance. Failure to comply with this procedure can
cause property damage, injury or death.
: Appliances equipped with a exible electric supply
cord, are provided with a three-prong grounding plug (or a CEE7
Plug for International CE Units). It is imperative that this plug be
connected into a properly grounded receptacle. Failure to comply
with this procedure can cause property damage, injury or death.
: If the receptacle is not the proper grounding type,
contact an electrician. Do not remove the grounding prong from
the plug. Failure to comply with this procedure can cause property
damage, injury or death.
ELECTRICAL WARNINGS

5
Installation and Operation of HSHU
: Before performing any service that involves electrical
connection or disconnection and/or exposure to electrical
components, always perform the Electrical LOCKOUT/TAGOUT
Procedure. Disconnect all circuits. Failure to comply with this
procedure can cause property damage, injury or death.
: Before removing any access panels or servicing
this equipment, always perform the Electrical LOCKOUT/TAGOUT
Procedure. Be sure all circuits are disconnected. Failure to comply
with this procedure can cause property damage, injury or death.
: Do not operate this equipment without properly
placing and securing all covers and access panels. Failure to
comply with this procedure can cause property damage, injury or
death.
: For your safety, do not use or store gasoline or other
ammable vapors or liquids in the vicinity of this or any other
appliance. Failure to comply can cause property damage, injury or
death.
: In the event of a power failure, do not attempt
to operate this appliance. Failure to comply can cause property
damage, injury or death.
: This appliance is not intended for use by persons
(including children) with reduced physical, sensory or mental
capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the
appliance by a person responsible for their safety. Children should
be supervised to ensure they do not play with the appliance.
CAUTION
Observe the following:
• Minimum clearances must be maintained from all walls and combustible
materials.
• Keep the equipment area free and clear of combustible material.
• Maintain adequate clearance for air openings.
• Operate equipment only on the type of electricity indicated on the data
sticker.
• Retain this manual for future reference.
ELECTRICAL WARNINGS  continued

Installation and Operation of HSHU
6
INTRODUCTION
The Duke HSHU was developed for extended food-holding capabilities to provide consistently high,
“just cooked” food quality.
TheHSHUutilizesDuke’s patented“heatsink”holding technology that providesevenheatdistributionto
food pans through the bottom and sides.This allows pre-cooked foods to be held for extended periods
without noticeable degradation of quality, reducing food scrap/waste.
The self contained, individually formed, sealed compartments of the HSHU eliminates food odor and
taste transfer. Because the compartments are sealed and formed to the shape of the pan, no disassembly
is required for cleaning or product changes.
The unique design of the HSHU allows multiple temperature operation for all existing product groups.
SERIAL NUMBER LOCATION
The Serial Number Data Label is located on the rear of the unit, above the power cord connection.
Refer to the Serial Number Data Label for proper electrical requirements. The serial number and model
number are required when communicating with the Duke Service Dept.

7
Installation and Operation of HSHU
HSHU-22
Shipping Weight: 180 lbs/82 kg
Electrical: HSHU-22-208 208 V ~, 12.0 A (12,0A), 2400 W, 60 Hz
HSHU-22-230CE 230 V ~, 10.5 A (10,5A), 2400 W, 50 Hz
HSHU-22-240 240 V ~, 10.0 A (10,0A), 2400 W, 60 Hz
SPECIFICATIONS
END
FRONT
2,6cm
3"
1"
7,7cm
13
8"
3,5cm
AU12-15P
Type I Plug
230V
AS/NZS 3112
(AUS)
L6-20P
Twist Lock Plug
208 & 240V
(US/CAN)
CEE 7/7
STD SHEET C4
230V
(GERMAN AND FRENCH
CE UNITS)
IEC 60309
3 Pin & Sleeve Plug
230V
(UK CE UNITS)
TOP
25 7/8”
65,6cm
12”
30,5cm
32 1/2”
82,4cm
Compliance Declaration
Standard: UL197 File: KNGT.E17421
Standard: CSA-C22.2 No. 109 File: KNGT7.E17421
Standard: ANSI / NSF 4 File: TSQT.E157479
Directive 2006/95/EC:
EN60335 -1:2002, A1, A2, A11, A12
EN 60335-2-49:2003
Directive 89/336/EEC and 2004/108/EC:
EN61000-3-2 EN 55014-1
EN61000-3-3 EN55014-2
WEEE RoHS Directive 2002/96/EC

Installation and Operation of HSHU
8
HSHU-23
Shipping Weight: 275 lbs/125 kg
Electrical: HSHU-23-208 208 V ~, 18.0 A (18,0A), 3600 W, 60 Hz
HSHU-23-230CE 230 V ~, 15.7 A (15,7A), 3600 W, 50 Hz
HSHU-23-240 240 V ~, 15.0 A (15,0A), 3600 W, 60 Hz
END TOP
FRONT
L6-30P
Twist Lock Plug
208 & 240V
(US/CAN)
IEC 60309
3 Pin & Sleeve Plug
230V
(UK CE UNITS)
2,6cm
3"
1"
7,7cm
13
8"
3,5cm
25 7/8”
65,6cm
12”
30,5cm
46 1/2”
118,2cm
Compliance Declaration
Standard: UL197 File: KNGT.E17421
Standard: CSA-C22.2 No. 109 File: KNGT7.E17421
Standard: ANSI / NSF 4 File: TSQT.E157479
Directive 2006/95/EC:
EN60335 -1:2002, A1, A2, A11, A12
EN 60335-2-49:2003
Directive 89/336/EEC and 2004/108/EC:
EN61000-3-2 EN 55014-1
EN61000-3-3 EN55014-2
WEEE RoHS Directive 2002/96/EC

9
Installation and Operation of HSHU
HSHU2-22
Shipping Weight: 175 lbs/80 kg
Electrical: HSHU2-22-208 208 V ~, 12.0 A (12,0A), 2400 W, 60 Hz
END
FRONT
2,6cm
3"
1"
7,7cm
13
8"
3,5cm
L6-20P
Twist Lock Plug
208 & 240V
(US/CAN)
TOP
16"
(40,64 cm)
12"
(30,5 cm)
32 1/2"
(82,4 cm)
Compliance Declaration
Standard: UL197 File: KNGT.E17421
Standard: CSA-C22.2 No. 109 File: KNGT7.E17421
Standard: ANSI / NSF 4 File: TSQT.E157479
Directive 2006/95/EC:
EN60335 -1:2002, A1, A2, A11, A12
EN 60335-2-49:2003
Directive 89/336/EEC and 2004/108/EC:
EN61000-3-2 EN 55014-1
EN61000-3-3 EN55014-2
WEEE RoHS Directive 2002/96/EC

Installation and Operation of HSHU
10
HSHU-13
Shipping Weight: 140 lbs/64 kg
Electrical: HSHU-13-208 208 V ~, 9.0 A (9,0A), 1800 W, 60 Hz
HSHU-13-230 230 V ~, 7.9 A (7.9A), 1800 W, 50 Hz
Compliance Declaration
Standard: UL197 File: KNGT.E17421
Standard: CSA-C22.2 No. 109 File: KNGT7.E17421
Standard: ANSI / NSF 4 File: TSQT.E157479
Directive 2006/95/EC:
EN60335 -1:2002, A1, A2, A11, A12
EN 60335-2-49:2003
Directive 89/336/EEC and 2004/108/EC:
EN61000-3-2 EN 55014-1
EN61000-3-3 EN55014-2
WEEE RoHS Directive 2002/96/EC