Duke FLEXTECH FTU-5 User manual

OWNER'S MANUAL
IMPORTANT INFORMATION, READ BEFORE USE.
PLEASE SAVE THESE INSTRUCTIONS.
This manual is Copyright © 2014 Duke Manufacturing Company. All rights reserved.
Reproduction without written permission is prohibited. Duke is a registered
trademark of the Duke Manufacturing Company.
Duke Manufacturing Company
2305 N. Broadway
St. Louis, MO 63102
Phone: [phone]
Toll Free: 1-800-735-3853
Fax: [phone]
www.dukemfg.com
P/N 169696B
07/16/2014
FLEXTECH™
HUMIDIFIED
HOLDING CABINET
STACKED
CONFIGURATION
Model:
FTU-5

Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
2

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Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS ............................................................................4
SPECIFICATIONS...............................................................................................................8
MAIN FEATURES................................................................................................................10
INSTALLATION ...................................................................................................................11
OPERATING INSTRUCTIONS............................................................................................19
CARE AND CLEANING.......................................................................................................22
DOOR ADJUSTMENTS AND GASKET MAINTENANCE ...................................................25
PROGRAMMING CONTROLS............................................................................................27
ERROR FAULT MESSAGING.............................................................................................30
TROUBLESHOOTING .......................................................................................................36
WIRING DIAGRAM .............................................................................................................38

Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
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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.
WARNING
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY.
CAUTION
INDICATES A HAZARDOUS SITUATION WHICH, IF NOT
AVOIDED, COULD RESULT IN MINOR OR MODERATE
INJURY.
CAUTION
INDICATES IMPORTANT INFORMATION
INDICATES ELECTRICAL SHOCK HAZARD WHICH, IF NOT
AVOIDED, COULD RESULT IN DEATH OR SERIOUS INJURY
AND/OR EQUIPMENT DAMAGE.
INDICATES HOT SURFACE WHICH, IF NOT AVOIDED, COULD
RESULT IN MINOR OR MODERATE INJURY. SPECIFICALLY,
RISK OF BURN FROM HEATING ELEMENTS.
INDICATES ROTATING FAN BLADE HAZARD WHICH, IF NOT
AVOIDED, COULD RESULT IN MINOR OR MODERATE INJURY.
INDICATES HOT SURFACE WHICH, IF NOT AVOIDED, COULD
RESULT IN MINOR OR MODERATE INJURY.
ELECTRICAL WARNINGS
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.

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Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
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 CERTIFIED 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 SPECIFICATIONS
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 FLEXIBLE 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.
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.

Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
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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
FLAMMABLE 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.
THE MAIN SWITCH ON THE APPLIANCE IS FOR STANDBY POWER
ONLY. FOR ALL-POLE DISCONNECT REMOVE PLUG FROM WALL OUTLET.
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.
• 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, water jet equipment, or other pressurized liquid spraying
equipment to clean this unit.
• This equipment should be serviced by qualied personnel only. Contact the nearest Duke
authorized service facility for adjustment or repair.

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Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
• Do not block any openings on the unit.
• A minimum clearance of 2″ (50.8mm) from the top of the unit to the ceiling must be provided.
• Unit may start operation with inadvertent contact with touch screen display or from other
extraneous sources. Turn off all poles mains disconnects should abnormal or unwanted operation
occur.
• This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory or mental capabilities or lack of experience and knowledge if they have been
given supervision or instruction concerning use of the appliance in a safe way and understand the
hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall
not be made by children without supervision.
• Turn off external mains supply disconnect and allow unit to cool down before servicing or
performing maintenance.
• 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.
• Properly rated all poles mains protection and earthing compliance with local electric codes are
required for safe operation of this unit.
• Water supply connections to the unit must comply with local plumbing code and/or standards.
• Disposal of the unit must be in accordance with local environmental codes and/or any other
applicable codes.
• SAVE THESE INSTRUCTIONS

Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
8
SPECIFICATIONS
Patent Pending
Model FTU-5
Line Ratings - FTU with Touch Screen Control
Line Supply
Voltage (V)
Line Supply
Frequency (Hz)
Line Phase
Conguration
Total Maximum
Line Power
Watts (W)
Total Maximum
Line Current
Amps (A)
208 60 Single Phase 4 450 23
230 50 Single Phase 4 450 17
240 60 Single Phase 4 450 20
Unit Weight: 285 lbs / 129 kg
Maximum Unit
Weight With Food
335 lbs / 152 kg
Compliance Declaration - FTU with Touch Screen Control
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 -1:2010
EN 60335-2-49:2008
Directive 89/336/EEC:
EN62233:2008
EN61000-6-3:2010
EN55014-2:20081
WEEE Directive 2002/96/EC
RoHS 2011/65/EU
Rated IPX4 for Counter Conguration

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Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
614.8mm
24.20in
1955mm
76.97in
1990mm
78.35in
2047.1mm
80.59in
2082.1mm
81.97in
926.6mm
36.48in
64.6mm
2.54in
88.7mm
3.49in
64.6mm
2.54in
82mm
3.23in
WATER INLET
ELECTRICAL INLET
STACKED CONFIGURATION

Owner's Manual for DUKE FlexTech
Humidied Holding Cabinet
10
MAIN FEATURES
WATER INLET
POWER CORD
REMOVABLE
SPILLAGE PAN
DOORS & HINGES
ARE REVERSIBLE
RACKS FOR
5 SHELVES
USB PORT
TOUCH SCREEN
CONTROL PANEL
MAIN SWITCH
ACTIVE VENT
HIGH LIMIT
PROTECTOR