Duke SUB-HF Installation Manual
Hot Food Warmer
Models:
SUB-HF-16.5
SUB-HF-18
SUB-HF-19
SUB-HF-21
SUB-HF-25
SUB-HF-31
SUB-HF-37
Installation and
Operation Manual
SUB-HF-49
CAUTION:
This manual is Copyright © 2018 Duke Manufacturing Co. All rights reserved.
Reproduction without written permission is prohibited. Duke is a registered
Please read this manual completely before attempting
to install, operate or service this equipment
trademark of the Duke Manufacturing Co.
REV B 08/23/2018
P/N 529113
Installation and Operation of: Hot Food Warmer
CAUTION
WARNING
CAUTION
CAUTION
TABLE OF CONTENTS
Important Safety Instructions ............................................................................................................. 2
Tools and Parts ...................................................................................................................................... 5
Inspection .............................................................................................................................................. 6
Installation of Hot Food Warmer
I. Unit Placement and adjustment.................................................................................................... 7
II. Installation and adjustment of end glass (adjacent units) ............................................................. 8
III. Installation and adjustment of end glass (end of line) ................................................................. 9
IV. Adjusting Front Glass ................................................................................................................ 10
Operations Instructions
I. General Instructions .....................................................................................................................11
II. Operating Instructions .................................................................................................................11
III Operating Checklist and Cleaning Guide ................................................................................... 12
IV Troubleshooting.......................................................................................................................... 12
V. Unit Line Up and Electrical Information ...................................................................................... 13
Wire Diagrams
120V ............................................................................................................................................... 14
220V ............................................................................................................................................... 15
IMPORTANT SAFETY INSTRUCTIONS
Throughout this manual, you will nd the following safety words and symbols that signify
important safety issues with regards to operating or maintaining the equipment.
Indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
Indicates a hazardous situation which, if not avoided, could
result in minor or moderate injury.
Indicates electrical shock hazard which, if not avoided, could
Indicates Important Information
result in death or serious injury and/or equipment damage.
Indicates hot surface which, if not avoided, could result in
2
minor or moderate injury.
Electrical shock hazard. Do not wash with water jet or hose.
Installation and Operation of: Hot Food Warmer
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 onnector. Do
not attempt to remove or disconnect 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 use caustic cleaners, acids, ammonia products or abrasive cleaners or abrasive
cloths. These can damage the stainless steel and plastic surfaces.
• 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 shall 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.
• If the supply cord is damaged, it must be replaced by a special cord assembly available
from Duke Manufacturing Co. or its service agent.
Note: Refer to the specications data plate when ordering or replacing a cord set.
The following warnings and cautions appear throughout this manual and shall be
carefully observed.
• Turn the unit o, 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 shall be grounded according to local electrical codes to prevent the possibility
of electrical shock. It requires a grounded receptacle with dedicated electrical lines,
protected by fuses or circuit breaker of the proper rating, in accordance with all
applicable regulations.
• Disposal of the unit must be in accordance with local environmental codes and/or any
other applicable codes.
• 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.
• CAUTION: Never use a high-pressure water wash for this cleaning procedure as water
can damage electrical components
3
Installation and Operation of: Hot Food Warmer
WARNING
ELECTRICAL SHOCK HAZARD UNIT MUST BE SAFETY GROUNDED, EARTHED.
DO NOT MODIFY, DEFEAT ELECTRICAL CONNECTIONS OR ALTER PLUG.
ELECTRICAL CONNECTIONS
BEFORE CONNECTING THE UNIT TO THE POWER SOURCE, VERIFY THAT THE
VOLTAGE AND PHASE OF THE POWER SOURCE ARE IDENTICAL TO THE VOLTAGE AND
PHASE INFORMATION ON THE DATA LABEL.
EARTHING INSTRUCTIONS
1. THE UNIT MUST BE GROUNDED. Grounding reduces risk of electric shock by providing an escape wire
for the electric current if an electrical short occurs. This unit is equipped with a cord having a grounding
wire with a grounding plug. The plug must be plugged into a receptacle that is properly installed and
grounded.
2. Consult a qualied electrician or service agent if grounding instructions are not completely understood,
or if doubt exists as to whether the unit is properly grounded.
3. DO NOT USE AN EXTENSION CORD. If the product power cord is too short, have a qualied electrician
install a three-slot receptacle (or the country specic receptacle for International Units). This unit should
be plugged into a dedicated circuit with the electrical rating as provided on the product data plate.
EXTERNAL EQUIPOTENTIAL BONDING TERMINAL (EXPORT ONLY)
1. This equipment has supplemental bonding terminal. The terminal provides an external
bonding connection used in addition to the earthing prong on the plug. The terminal
provides a connection for bonding to the equipment enclosure. The external equipotential
bonding terminal located on the rear outside surface of the unit, the terminal is marked
with the symbol to the right.
INSTALLATION CODES AND STANDARDS
In the United States, the Unit must be installed in accordance with the following:
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.
4. Sealed to the counter upon which the equipment is placed per NSF/ANSI 4 standard.
In Canada, the Unit must be installed in accordance with the following:
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.
“For CE Units, the Unit must be installed in accordance with the following:
1. Local codes.
2. European (IEC/CENELEC) Electrical Code
4
Tools and Parts Needed for Installation
Tools Needed - not included
Installation and Operation of: Hot Food Warmer
Phillips Screw
Driver
Adjustable
Pliers
7/16” Wrench
13mm Wrench
Parts and Hardware Included
223424 Hex
Head Bolt
10-24X1/2” 4ea.
2501061
Stainless
Washer 4ea.
Cordless Drill
3/32 Allen
Wrench
523030 Bolt
1/4-20 X 1”
2ea.
Caulk Gun/
Silicone
Level
223108 Bolt
1/4-20X3/4”
2ea.
Socket set with
5/16 socket
Wire Cutters
-Strippers
223398
Plastic
Washer 4ea.
524100
Plastic Spacer
4ea.
225035 Gaskets 2ea.
223390
1/4-20
Cap Nut 4ea.
225855 (120V)
225854 (240V)
Power Supply
216576
Silicone Sealant
226115
End Glass 1ea.
2501693 Plastic
Wrench 1ea.
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