TRI-CHANNEL COLD PAN
Service Manual
MODEL
SUB-GP
Please read this manual completely before attempting to
install, operate or service this equipment
This manual is Copyright © 2005 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: 314-231-1130
Toll Free: 1-800-735-3853
Fax: 314-231-5074
www.dukemfg.com
P/N 219206
Service Manual for Tri-Channel Cold Pan SUB-GP
IMPORTANT WARNING AND SAFETY INFORMATION
WARNING
READ THIS MANUAL THOROUGHLY BEFORE OPERATING, INSTALLING, OR PERFORMING
MAINTENANCE ON THE EQUIPMENT.
WARNING
FAILURE TO FOLLOW INSTRUCTIONS IN THIS MANUAL CAN CAUSE PROPERTY
DAMAGE, INJURY OR DEATH.
WARNING
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS OR LIQUIDS
IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE.
WARNING
UNLESS ALL COVER AND ACCESS PANELS ARE IN PLACE AND PROPERLY SECURED,
DO NOT OPERATE THIS EQUIPMENT.
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.
• Adequate clearance for air openings.
• Operate equipment only on the type of electricity indicated on the specification plate.
• Retain this manual for future reference.
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Service Manual for Tri-Channel Cold Pan SUB-GP
Contents
SPECIFICATIONS ................................................................................................................................... 4
INSTALLATION ........................................................................................................................................ 4
Location.............................................................................................................................................. 4
Inside Unit .......................................................................................................................................... 4
Outside Unit ....................................................................................................................................... 4
Leveling.............................................................................................................................................. 4
Stabilizing ........................................................................................................................................... 4
Electrical Connection ......................................................................................................................... 4
MAINTENANCE ....................................................................................................................................... 5
Stainless Steel Care and Cleaning..................................................................................................... 5
PREVENTIVE MAINTENANCE ............................................................................................................... 6
Cleaning the Condenser Coil ............................................................................................................. 6
P ARTS REPLACEMENT.......................................................................................................................... 7
Thermostat Replacement................................................................................................................... 7
General .............................................................................................................................................. 7
Evaporator.......................................................................................................................................... 7
General .............................................................................................................................................. 7
Refrigeration System Replacement ................................................................................................... 8
General .............................................................................................................................................. 8
Recharging Refrigeration System ...................................................................................................... 8
General .............................................................................................................................................. 8
Tools................................................................................................................................................... 8
Charging Procedure........................................................................................................................... 9
ELECTRICAL ......................................................................................................................................... 10
Electrical Schematic......................................................................................................................... 10
TROUBLESHOOTING............................................................................................................................11
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Service Manual for Tri-Channel Cold Pan SUB-GP
SPECIFICATIONS
MODEL DESCRIPTION VOLTAGE AMPS PH.
SUB-GP Tri-Channel 120 VAC (60Hz) 7.9 1
Cold Pan 220 VAC (50Hz) 4.4 1
MODEL DESCRIPTION HEIGHT WIDTH LENGTH
SUB-GP Tri-Channel 36.00 In. 30.00 In. 48.00 In.
Cold Pan 60.00 In.
74.00 In.
86.00 In.
INSTALLATION
Location
The unit represented in this manual is intended
for indoor use only. Be sure the chosen location
has a floor strong enough to support the total
weight of the unit. Reinforce the floor if
necessary to provide for maximum loading. For
the most efficient operation, be sure to provide
good air circulation inside and out.
The outline dimensional drawing for the unit is
shown below in Figure 1.
Inside Unit
Provide adequate space along the front and
back taking care to not block airflow to the fan.
Outside Unit
Be sure that the unit has access to ample air;
avoid hot corners and locations near stoves
and ovens.
Leveling
Be sure that the unit is placed on a firm, flat
surface/floor. Check for cracks in flooring or tile
and avoid these areas if possible. If necessary
place support pads, properly rated for the weight
of the unit, to “bridge” uneven or cracked flooring.
Level unit accordingly.
Stabilizing
Use the leg adjustments to insure that the unit
is solid to the floor surface at all four contact
points. Insure that the unit does not “rock” when
pressure is applied to the top corners.
Electrical Connection
Figure 1
Tri-Channel Cold Pan
The Tri-Channel Cold Pan is available as a
120VAC, 60 Hz or as a 220VAC, 50 Hz
dependent on model. All electrical connections
should be performed by a certified electrician
and should comply with local electrical codes
for your municipality.
WARNING
REFER TO THE AMPERAGE DATA LIST
IN THE SPECIFICATIONS OR THE SERIAL
TAG DATA AND YOUR LOCAL CODE
OR THE NATIONAL ELECTRICAL CODE
TO BE SURE UNIT IS CONNECTED TO
THE PROPER POWER SOURCE. A
PROTECTED CIRCUIT OF THE CORRECT
VOLTAGE AND AMPERAGE MUST BE
RUN FOR CONNECTION OF THE SUPPLY
CORD OR PERMANENT CONNECTION
TO THE UNIT. THE POWER MUST BE
TURNED OFF AND DISCONNECTED
WHENEVER PERFORMING MAINTENANCE OR REPAIR FUNCTIONS.
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