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Duke RBC 48, Service Manual

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Duke RBC 48 Service Manual Download Page 13

13

Service Manual for Refrigerated Back Counter RBC 48/60

220V 50/60 Hz

R1

L1

G

S1

L2

M1

M2

R2

HTR2

THRERMOSTAT

CONDENSING UNIT

EVAPORATOR FAN

EVAPORATOR FAN

DOOR HEATER

MULLION HEATER

HTR1

R3

HTR2

HTR1

120V 50/60 Hz

R1

L1

G

S1

L2

M1

M2

R2

HTR2

THRERMOSTAT

CONDENSING UNIT

EVAPORATOR FAN

EVAPORATOR FAN

DOOR HEATER

MULLION HEATER

NOTE:  HTR2 IS A FAULT BACKUP FOR HTR1 IN THE HEATER ASSEMBLIES.

HTR1

R3

HTR2

HTR1

POWER SAVE

SWITCH

POWER SAVE

SWITCH

S2

S2

Summary of Contents for RBC 48

Page 1: ...registered trademark of the Duke Manufacturing Co 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 Please read this manual completely before attempting to install operate or service this equipment REFRIGERATED BACK COUNTER MODEL RBC 48 RBC 60 RBC 60 RBC 48 ...

Page 2: ...OR ANY OTHER APPLIANCE WARNING UNLESS ALL COVER AND ACCESS PANELS ARE IN PLACE AND PROPERLY SE CURED 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 ...

Page 3: ... 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 ...

Page 4: ... system is done from the end of the cabinet The outline dimensional drawings for the units are shown below in Figures 1 and 2 Figure 1 48 Refrigerated Back Counter RBC 48 INTROUCTION Figure 2 60 Refrigerated Back Counter RBC 60 Inside Unit Take care not to block air flow to the fans and allow space along the front back and sides Outside Unit Besurethattheunithasaccesstoampleair avoid hot corners a...

Page 5: ...lectrical 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 AN...

Page 6: ...tains or grease shouldbecleanedwithanon abrasivecleanerand plastic scrub pad It is always good to rub with the grain of the steel There are also stainless steel cleanersavailablewhichcanrestoreandpreserve the finish of the steels protective layer Early signs of stainless steel breakdown can consist of small pits and cracks If this has begun cleanthoroughlyandstarttoapplystainless steel cleaners in...

Page 7: ...of warm soapy water Avoid full strength cleaning products on gaskets as this can cause them to become brittle and prevent proper seals Also never use sharp tools or knives to scrape or clean the gasket which could possibly tear the gasket and rip the bellows Gasketscan easily be replaced and do not require theuseoftoolsorauthorizedservicepersons The gaskets are Dart style and can be pulled out of ...

Page 8: ...ken not to kink the new thermostat cap tube NOTE 8 of the end of the thermostat cap tube must be in the evaporator coil to ensure proper operation EVAPORATOR FANS The evaporator fans are a part of the main refrigeration unit The refrigeration unit is accessed through the right side of the unit and is slid out as an assembly from the right side 1 Disconnect and isolate the refrigerator from the pow...

Page 9: ...ottom hinge with a 3 8 open wrench until snug Do not over tighten 2 Place a flat screwdriver against the side of the bottom hinge and lightly tap with a hammer until door is properly aligned 3 Depending upon the degree of misalignment it may be necessary to adjust the top hinge as well by gently tapping on the inside of the hinge 4 Once doors have been aligned assure that all screws are tight on a...

Page 10: ...tem is now ready to receive the refrigerant charge per the data plate information CAUTION Never use oxygen or acetylene in place of refrigerant and dry nitrogen for leak testing A violent explosion may result causing personal injury or death Always use a pressure regulator when using nitrogen to pressure test Failure to do so will result in extremely high pressure which could exceed the burst pres...

Page 11: ...t leak Thermostat set too cold Faulty thermostat in the off position the switch does not open stuck closed Drain tube plugged Drain tube loose or disconnected from drain pan REMEDY Plug unit in Set thermostat colder the higher the number the colder the unit will be Replace thermostat Adjust doors Replace gaskets Check motor repair or replace Check motor repair or replace Clean coil or filter Leak ...

Page 12: ...1 FAN 2 220V Red VS 120V Black VS 120 Black Smooth VS 220 Black VS 120 Black with Grooves VS 220 White VS 220V Red VS 120V Black VS 220V Red VS 120V Black VS 220V Red VS HTR 2 HTR 2 HTR 1 HTR 1 DOOR HEATER MULLION HEATER SPLICE AT BASE OF MULLION 120V Black VS White VS Green VS White VS White VS White VS White 3 2 1 Black SO Black Black Red L1 L2 G G Black VS Black VS Black VS Black VS White Black...

Page 13: ...IT EVAPORATOR FAN EVAPORATOR FAN DOOR HEATER MULLION HEATER HTR1 R3 HTR2 HTR1 120V 50 60 Hz R1 L1 G S1 L2 M1 M2 R2 HTR2 THRERMOSTAT CONDENSING UNIT EVAPORATOR FAN EVAPORATOR FAN DOOR HEATER MULLION HEATER NOTE HTR2 IS A FAULT BACKUP FOR HTR1 IN THE HEATER ASSEMBLIES HTR1 R3 HTR2 HTR1 POWER SAVE SWITCH POWER SAVE SWITCH S2 S2 ...

Page 14: ...Service Manual for Refrigerated Back Counter RBC 48 60 14 NOTES ...

Page 15: ...___________________ NORTH AMERICA LATIN AMERICA Duke Manufacturing Company 2305 N Broadway St Louis MO 63102 Phone 314 231 1130 Toll Free 1 800 735 3853 Fax 314 231 5074 UK IRELAND Duke Mfg UK Duke House Unit 10 Greendale Business Park Woodbury Salterton Exeter Devon UK EX5 1EW Tel 01395 234140 FAX 01395 234154 CONTINENTAL EUROPE EU Headquarter Office Duke Manufacturing CR s r o Vitavska 219 Stech...

Page 16: ...com EU Headquarter Office Duke Manufacturing CR s r o Vitavska 219 Stechovice 25207 Phone 420 257 741 033 Duke Mfg UK Duke House Unit 10 Greendale Business Park Woodbury Salterton Exeter Devon UK EX5 1EW Tel 01395 234140 FAX 01395 234154 Asia Office Duke Food Service Equipment shanghai Company Limited 1F Building 17 2 658 Nong Jin Zhong Road Shanghai China 200335 Tel 86 21 6876 9272 Fax 86 21 3360...

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