Cornelius COR20RFTM Service Manual Download Page 1

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REACH-IN FREEZERS

COR20RFTM, COR22RFTM, COR40RFTMD,

COR48RFTMD, COR74RFTMT

Service Manual

Release Date: June 16, 2004

Publication Number: 630460260SER

Revision Date: NA

Revision: A

Visit the IMI Cornelius web site at www.cornelius.com for all your Literature needs.

Summary of Contents for COR20RFTM

Page 1: ...COR22RFTM COR40RFTMD COR48RFTMD COR74RFTMT Service Manual Release Date June 16 2004 Publication Number 630460260SER Revision Date NA Revision A Visit the IMI Cornelius web site at www cornelius com fo...

Page 2: ...d that appropriate safety precautions are taken and that all local safety and construction requirements are being met in addition to the information contained in this manual To inquire about current r...

Page 3: ...er flow 3 Warning light and thermometer 3 Temperature control 4 Automatic defrosting 4 Service Procedures 4 Light switches 4 Lights 5 Temperature controls 5 Time clocks 6 Frost termination and fan del...

Page 4: ...Reach In Freezer Service Manual Publication Number 630460260SER ii 2004 IMI Cornelius Inc...

Page 5: ...t power indicator condensate switch Heavy duty hinges with self closing mechanism U L compliant electrical components Heavy duty shelves Recessed handles with cylinder lock Solid doors save energy by...

Page 6: ...efore replacing products 3 Clean the condenser unit periodically by vacuuming the unit compartment especially the condenser unit coil it looks like a small auto radiator If the condenser coil has accu...

Page 7: ...r openings The number of door openings and the length of time the door is left open should be kept to a minimum to reduce the operating cost and maintain the most efficient operation The temperature i...

Page 8: ...sting All freezers are equipped with a time clock which should be set to the correct time of day when the cabinet is put into operation Instructions are posted on the inside of the door to the time cl...

Page 9: ...cated on the coil or header and pull the lead wires off the control terminals 3 If the temperature control is within the first year warranty and is to be returned for credit be sure to coil the tubing...

Page 10: ...nter on the inner dial To reset the timer grasp the knurled knob and turn it counterclockwise until the pointer is at the correct time As soon as the power is turned on if the temperature control is i...

Page 11: ...when the prescribed time is up The length of the defrost cycle will vary depending on the type of product stored in the cabinet the number of door openings and the atmospheric conditions The defrost...

Page 12: ...y 3 Drop the motor and bracket through the hold 4 Remove the three machine screws holding the motor to the mounting bracket and disconnect the wire leads 5 Install the new fan motor and reinstall the...

Page 13: ...one of the components in the condensing unit area The service person should install a set of gages on the service valves to determine the operating pressures Compare these pressures to the specificat...

Page 14: ...P CONTROL FAN MOTOR DEFROST ROD BLUE BLACK WHITE BLACK BLUE WHITE RED COND UNIT WHITE BLACK WHITE RED RED DEFROST WHITE BLACK TIMER BLACK GREEN WHITE ORANGE JUNCTION BOX BLACK PERIMETER HEATER WHITE B...

Page 15: ...UE RED RED RED TIMER BOX FEED SWITCH EVAP PAN UNIT COND SWITCH HEATER GREEN WHITE BLACK RED GREY AJAR DOOR POWER WHITE BLACK WHITE BLACK GREY WHITE BLACK RED PUSH BUTTOM B BULB W LIGHT B G HEATERS FAS...

Page 16: ...ROST ROD BLUE BLACK WHITE BLACK BLUE WHITE RED COND UNIT WHITE BLACK WHITE RED RED DEFROST WHITE BLACK TIMER BLACK GREEN WHITE ORANGE JUNCTION BOX BLACK PERIMETER HEATER WHITE BIMETALIC YELLOW RED BLA...

Page 17: ...D SWITCH EVAP PAN UNIT COND SWITCH HEATER GREEN WHITE BLACK RED GREY AJAR DOOR POWER BLACK WHITE BLACK WHITE BLACK GREY WHITE BLACK RED PUSH BUTTOM B BULB W LIGHT B G PUSH BUTTOM G B HEATERS FASCIA MU...

Page 18: ...COND SWITCH HEATER GREEN WHITE BLACK RED GREY AJAR DOOR POWER BLACK WHITE BLACK WHITE BLACK GREY WHITE BLACK RED PUSH BUTTOM B BULB W LIGHT B G PUSH BUTTOM G B HEATERS FASCIA MULLION HEATERS BLACK WHI...

Page 19: ...flow Clean condenser and allow for air circulation Low voltage Use a voltage regulator if the voltage is lower than 103 volts Compressor is stuck Change the compressor Temperature control contacts are...

Page 20: ...ered with any type of plastic or other material that will block the circulation of cold air within the freezer Too many door openings Advise user to decrease if possible Excessive heat load placed in...

Page 21: ...riginating from the compressor EXTREME CONDENSATION INSIDE THE FREEZER Thermostat knob is set at a very cold position Set the thermostat knob to a warmer position and check if the compressor stops acc...

Page 22: ...IMI Cornelius Inc www cornelius com...