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SERVICE MANUAL The products, technical information, and instructions contained in this manual are subject to change without notice. These instructions are not intended to cover all details or varia- tions of the equipment, nor to provide for every possible contingency in the installation, operation or maintenance of this equipment. This manual assumes that the person(s) working on the equipment have been trained and are skilled in working with electrical, plumbing, pneumatic, and mechanical
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Reach-In Refrigerator Service Manual TABLE OF CONTENTS Features of the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Cleaning and Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 How Your Cabinet Operates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Defrost water flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Reach-In Refrigerator Service Manual Publication Number: 630460272SER - ii - © 2004, IMI Cornelius Inc.
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Reach-In Refrigerator Service Manual FEATURES OF THE UNIT Heavy duty condensing unit located on top for Control panel with easy-access maintenance. temperature display, door ajar light, power indicator, condensate switch U.L. compliant electrical components Heavy duty hinges with self-closing mechanism Strong body with 2 1/2” thick walls injected with CFC-free polyurethane. Stainless steel front and exterior sides. Heavy duty shelves Recessed handles with cylinder lock Solid doors save e
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Reach-In Refrigerator Service Manual CLEANING AND PREVENTIVE MAINTENANCE Weekly or sooner, as required: 1. Disconnect the power source before cleaning. Remove all products and place in a proper cooler. 2. Clean the interior and exterior with a mild soap or detergent solution and then rinse with a warm baking soda solution (one cup of baking soda to one gallon of warm water). Dry the interior completely before replacing products. 3. Clean the condenser unit periodically by vacuuming the unit co
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Reach-In Refrigerator Service Manual HOW YOUR CABINET OPERATES CAUTION - Make sure the power supply is turned off before making any electrical repairs. Defrost water flow Your new cabinet is completely self-defrosting. The frost that collects on the concealed coils is automatically removed at predetermined intervals. The defrost water on top-mounted condensing units flows into a thermostatically controlled electric vaporizer where it is dissipated into the atmosphere. All defrost evaporator
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Reach-In Refrigerator Service Manual Temperature control If the condensing unit does not run after the power cord is plugged in, check that the temperature control is in the “on” position. This can be done with an ordinary screwdriver. After the system has operated for several hours, the temperature control may be adjusted to suit your needs. Turn it clockwise to make it colder and counterclockwise to make it warmer. Do not make more than 1/4 turn at one time; then allow it to operate for se
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Reach-In Refrigerator Service Manual leads from the terminals and attach them to the new switch and snap it back in place. Make sure there are no breaks or bare wires to cause a short before putting the switch back. FIGURE 6 Lights The incandescent light bulb can be replaced by any 40 watt appliance bulb. Temperature controls CAUTION - Make sure the power supply is turned off before making any electrical repairs. To replace the temperature control: 1. Remove the two mountin
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Reach-In Refrigerator Service Manual 2. Pull the feeler bulb from the well which is usually located on the coil or header and pull the lead wires off the control terminals. FIGURE 7 If the temperature control is within the first year warranty and is to be returned for credit, be sure to coil the tubing neatly and do not kink it or damage the control in any way. No credit can be issued for any parts that arrive in a damaged condition. 3. Replace the control with an ex
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Reach-In Refrigerator Service Manual FIGURE 8 When the coil temperature reaches the proper temperature, the fan(s) will automatically start and continue to run until it comes to the defrost cycle. The fan(s) may turn off if the doors are left open too long during a loading period and the coil becomes warm. Do not call for service until the freezer is given enough time to come down to the proper temperature. After the unit is put into operation, the fan(s) will o
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Reach-In Refrigerator Service Manual Blower fan assembly To change the fan blade, remove the speed nut from the threaded shaft. If the fan motor must be changed: 1. Remove the fan blade and lay it carefully aside. Be careful not to bend or damage the blade or it will become out of balance. FIGURE 9 2. Remove the four machine screws around the perimeter of the hole in the baffle. These hold the motor mounting bracket in place. The small rubber washers that eliminate vibration should be saved
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Reach-In Refrigerator Service Manual 4. Install a new heater element. Be sure to use similar copper wire to install the new element tightly against the coil. Note that there is a bend in the heater element along the center rear. This must make good contact with the drain pan or baffle at the drain opening in order to work properly. If it does not make good contact, the drain line will freeze up and the defrost water will overflow into the food compartment during the defrost cycle. Condensin
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Reach-In Refrigerator Service Manual WIRING DIAGRAMS COR20RRTM WHITE COND. UNIT SPEAR LINE BLACK JUNCTION BOX WHITE WHITE RED BLACK FAN MOTOR PERIMETER HEATER TEMP. CONTROL BLACK RED PUSH LIGHT BUTTOM BULB FIGURE 11 Publication Number: 630460272SER - 10 - © 2004, IMI Cornelius Inc. BLACK WHITE RED BLACK WHITE BLACK GREEN WHITE WHITE WHITE BLACK BLACK BLACK BLACK
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Reach-In Refrigerator Service Manual COR22RRTM MULLION/CANOPY CONNECTION BLACK GREY GREY WHITE RED RED POWER BLACK BLACK BLACK WHITE WHITE WHITE DOOR AJAR B G B W GREEN PUSH BUTTOM LIGHT BULB ELECT. BOX WHITE FEED BLACK 4 X 4 GREEN HEATERS - FASCIA SWITCH EVAP. WHITE PAN BLACK GREEN COND. RED UNIT WHITE FAN MOTOR CONTROL WHITE RED BLACK BLACK BAFFLE CONNECTION FIGURE 12 © 2004, IMI Cornelius Inc. - 11 - Publication Number: 630460272SER WHITE WHITE BLACK BLACK RED GREEN HEATER SWITCH
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Reach-In Refrigerator Service Manual COR48RRTMD MULLION/CANOPY CONNECTION BLACK GREY GREY WHITE RED RED POWER BLACK BLACK BLACK WHITE WHITE WHITE DOOR AJAR BLACK WHITE B G G B GREEN BLACK B W WHITE PUSH PUSH BUTTOM BUTTOM LIGHT BULB ELECT. BOX WHITE FEED BLACK 4 X 4 GREEN HEATERS - FASCIA SWITCH EVAP. WHITE PAN BLACK GREEN COND. RED UNIT WHITE FAN MOTOR CONTROL WHITE RED BLACK BLACK BAFFLE CONNECTION FIGURE 14 © 2004, IMI Cornelius Inc. - 13 - Publication Number: 630460272SER MULLION HEATERS WH
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Reach-In Refrigerator Service Manual COR74RRTMT MULLION/CANOPY CONNECTION BLACK GREY GREY WHITE RED RED POWER BLACK BLACK BLACK WHITE WHITE WHITE DOOR AJAR BLACK B G G B GB WHITE GREEN BLACK B W BW WHITE PUSH PUSH PUSH BUTTOM BUTTOM BUTTOM LIGHT LIGHT BULB BULB ELECT. BOX WHITE FEED 4 X 4 BLACK GREEN HEATERS - FASCIA SWITCH EVAP. WHITE PAN BLACK GREEN COND. RED UNIT WHITE FAN MOTOR CONTROL WHITE RED BLACK BLACK BAFFLE CONNECTION FIGURE 15 Publication Number: 630460272SER - 14 - © 2004, IMI Corne
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Reach-In Refrigerator Service Manual TROUBLESHOOTING Possible causes and solutions PROBLEM POSSIBLE CAUSE SOLUTION COMPRESSOR WILL NOT No voltage in the electrical Use a voltmeter to check the START socket. voltage. The electrical conductor or Use an ohmmeter to check for wires may be cut. continuity. Defective electrical Replace defective components. components such as: thermostat, relay, thermal protector, etc. Thermostat in “off” position. Turn the thermostat’s knob to its maximum posit
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Reach-In Refrigerator Service Manual PROBLEM POSSIBLE CAUSE SOLUTION THE TEMPERATURE IS NOT Thermostat knob is set at a Set the thermostat knob to a COLD ENOUGH very warm position. colder position. Condenser is dirty. Clean the condenser. The refrigerator has been The unit must not be near placed at an inadequate stoves, walls that are exposed location. to the sun, or places that lack sufficient air flow. Compressor is inefficient or If there is air in the system, there is a high head press
