Duke RBC 60 Service Manual
RBC 60
Service Manual
REFRIGERATED BACK
COUNTER
MODEL
RBC 48
RBC 60
Please read this manual completely before attempting to
install, operate or service this equipment
This manual is Copyright © 2011 Duke Manufacturing Co. All rights reserved.
Reproduction without written permission is prohibited. Duke is a registered
trademark of the Duke Manufacturing Co..
RBC 48
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 219211B
Service Manual for Refrigerated Back Counter RBC 48/60
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.
• Unit exhausts air to the bottom and the rear.
• Do not set unit on a curb or seal to the wall.
• Do not block the slots in the front kickplate.
• Operate equipment only on the type of electricity indicated on the specication plate.
• Retain this manual for future reference.
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Service Manual for Refrigerated Back Counter RBC 48/60
CONTENTS
INTROUCTION ....................................................................................................................................... 4
SPECIFICATIONS ............................................................................................................................ 4
INSTALLATION ................................................................................................................................. 4
Location ...................................................................................................................................... 4
Inside Unit ................................................................................................................................... 4
Outside Unit ................................................................................................................................ 4
Leveling ...................................................................................................................................... 4
Stabilizing ................................................................................................................................... 4
Electrical Connection .................................................................................................................. 5
MAINTENANCE ..................................................................................................................................... 6
STAINLESS STEEL CARE AND CLEANING ................................................................................... 6
PREVENTIVE MAINTENANCE ........................................................................................................ 6
Cleaning the Condenser Coil ...................................................................................................... 6
Gasket Maintenance ................................................................................................................... 7
Drain Maintenance - Base .......................................................................................................... 7
PARTS REPLACEMENT ........................................................................................................................ 8
THERMOSTAT REPLACEMENT...................................................................................................... 8
EVAPORATOR FANS ....................................................................................................................... 8
REFRIGERATION SYSTEM UNIT REPLACEMENT ....................................................................... 9
DOOR REPLACEMENT AND ADJUSTMENT .................................................................................. 9
DOOR GASKET REPLACEMENT ................................................................................................... 9
MULLION AND CABINET HEATER REWIRING .............................................................................. 9
General ....................................................................................................................................... 9
Mullion Heater ............................................................................................................................. 9
RECHARGING REFRIGERANT SYSTEM .................................................................................... 10
General ..................................................................................................................................... 10
Tools Required .......................................................................................................................... 10
Charging Procedure .................................................................................................................. 10
TROUBLESHOOTING ..........................................................................................................................11
WIRING DIAGRAMS ............................................................................................................................ 12
CUSTOMER ASSISTANCE .................................................................................................................. 15
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Service Manual for Refrigerated Back Counter RBC 48/60
INTROUCTION
SPECIFICATIONS
MODEL DESCRIPTION VOLTAGE AMPS PH.
RBC 48 48" Refrigerated 120 VAC (60 Hz) 10 1
Back Counter 220 VAC (50 Hz) 5 1
RBC 60 60" Refrigerated 120 VAC (60 Hz) 12 1
Back Counter 220 VAC (50 Hz) 6 1
MODEL DESCRIPTION HEIGHT WIDTH LENGTH
RBC 48 48" Refrigerated 40.00 In. 29.50 In. 48.00 In.
Back Counter
RBC 60 60" Refrigerated 40.00 In. 29.50 In. 60.00 In.
Back Counter
INSTALLATION
Location
Units represented in this manual are intended for
indoor use only. Be sure the location chosen has a
oor or counter strong enough to support the total
weight of the units. Reinforce the oor or counter
if necessary to provide for maximum loading. For
the most efcient operation, be sure to provide
good air circulation inside and out. These units
should be located so that they can be moved for
service. Major service to the refrigeration system
is done from the end of the cabinet.
The outline dimensional drawings for the units are
shown below in Figures 1 and 2.
Inside Unit
Take care not to block air ow to the fans and allow
space along the front, back and sides.
Outside Unit
Be sure that the unit has access to ample air; avoid
hot corners and locations near stoves and ovens.
CAUTION: This unit exhausts air to the
bottom and the back. Do not
seal the unit to the wall or set
unit on a curb. The ventilation
slots in the kickplate must
remain open.
Figure 2
60" Refrigerated Back Counter (RBC 60)
Figure 1
48" Refrigerated Back Counter (RBC 48)
4
Leveling
Be sure that the units are placed on a rm, at
surface/oor. Check for cracks in ooring 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 ooring.
Level unit accordingly.
Stabilizing
Use the leg adjustments to insure that the unit is
solid to the oor surface at all four contact points.
Insure that the unit does not “rock” when pressure
is applied to the top corners.
Service Manual for Refrigerated Back Counter RBC 48/60
Electrical Connection
The RBC 48 and RBC 60 are available as a 120VAC,
60 Hz or as 220VAC, 50 Hz dependent on model.
All electrical connections should be performed by
a certied 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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