Service and Parts Manual Supplement For Model CLRCO2075 U-Line Corporation 8900 North 55th Street Milwaukee, WI 53223 U-Line Corporation PO Box 245040 Milwaukee, WI 53224-9540 www.U-LineService.
INTRODUCTION Design ■ Features ■ Performance INTRODUCTION Three generations of pride and quality manufacturing and design improvements are built into all U-Line products. The result: U-Line leads the market with innovative technology and superior craftsmanship. This manual contains specific instructions for servicing the U-Line Échelon CLRCO2075. Potential Problems With HFC-134A This Service Manual has been written to cover product manufactured with HFC-134a.
INTRODUCTION Design ■ Features ■ Performance SERIAL NUMBER FORMAT The serial number is divided into four segments. A typical serial number is 035497-03-0004. The first two digits of the first segment, 03, represents the year the unit was made. The next four digits of the first segment, 5497, represents the shop order number. Order number 5497 is assigned for the Model CLRCO Black_00 units. The second two digit segment, 03, represents the month the unit was made.
INTRODUCTION Design ■ Features ■ Performance NOTES 4
INTRODUCTION Design ■ Features ■ Performance TABLE OF CONTENTS Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Serial Number Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General Information . . . . . . . . Limited Warranty . . . . . . . . Warranty Claims Procedure Safety Precautions . . . . . . . . . . . . . . . . . . . .
GENERAL INFORMATION Design ■ Features ■ Performance LIMITED WARRANTY U-Line Corporation warrants each U-Line product to be free from defects in materials and workmanship for a period of one year from the date of purchase; and warrants the sealed system (consisting of the compressor, the condenser, the evaporator, the hot gas bypass valve, the dryer and the connecting tubing) in each U-Line product to be free from defects in materials and workmanship for a period of five years from the date of purchase.
GENERAL INFORMATION Design ■ Features ■ Performance WARRANTY CLAIMS PROCEDURE When submitting claims for warranty payment, please follow these guidelines. You can use any form you would normally use to bill your customer (your own computer generated form, Narda, USA, etc.). The model and serial number MUST be on the claims. Claims will not be paid without a model and serial number. If you work on more than one unit per service call please submit a separate claim for each unit.
GENERAL INFORMATION Design ■ Features ■ Performance SAFETY PRECAUTIONS Do not attempt to service or repair the unit until you have read the entire procedure. Safety items throughout this manual are labeled with Warning or Caution. ! WARNING ! Warning means that failure to follow this safety statement may result in extensive product damage, serious personal injury, or death.
SERVICING Design ■ Features ■ Performance ELECTRICAL SPECIFICATIONS OVERLOAD PROTECTOR R S C STARTING RELAY RELAY COVER CLRCO036 Compressor Pins To measure start winding resistance, measure across the C-S pins. To measure run winding resistance, measure across the C-R pins. These pins should never measure any resistance to ground. This would indicate a shorted compressor. Specifications FF7.5HBK Compressor Start Winding: FF7.5HBK Compressor Run Winding: 11.2 OHMS 2.
SERVICING Design ■ Features ■ Performance LEVELING AND INSTALLATION REQUIREMENTS It is extremely important that the unit is level. If it is not level, the ice mold will not fill evenly. This can cause a reduction in ice rate, uneven sized cubes or water spilling into the storage area which will cause the ice in the bin to melt prematurely. See Figure A. Remember the floor surrounding a drain has a tendency to slope towards the drain. Figure A Leveling the Unit UL307 1.
SERVICING Design ■ Features ■ Performance GRAVITY DRAIN INSTALLATION ! Plumbing installation must observe all state and local codes. These guidelines must be followed when installing drain lines to prevent water from flowing back into the ice maker storage bin and potentially flowing onto the floor causing water damage: • • • • Drain lines and fittings must have a 5/8" inside diameter. Drain lines must have a 1" drop per 48" of run (1/4" per foot) and must not create traps.
SERVICING Design ■ Features ■ Performance CONNECTING A DRAIN PUMP ! Plumbing installation must observe all state and local codes. All water and drain connections MUST BE made by a licensed/qualified plumbing contractor. Failure to follow recommendations and instructions may result in damage and/or harm. If a gravity drain connection is not available, U-Line strongly recommends the use of the U-Line P60 drain pump.
SERVICING Design ■ Features ■ Performance SELF-CLEANING CYCLE INSTRUCTIONS To maintain operational efficiency, clean unit every six months (depending on water conditions more or less frequent cleaning may be necessary). If the ice maker requires more frequent cleaning, consult a qualified plumber to test the water quality and recommend appropriate treatment. Use only U-Line Ice Machine Cleaner (part number 41978). ! Use only U-Line Ice Machine Cleaner (part number 41978).
SERVICING Design ■ Features ■ Performance INTERIOR STORAGE BIN CLEANING 1. Disconnect power from the ice maker. 2. Remove any ice from the storage bin. 3. Wipe down the storage bin with a solution of non-abrasive mild soap or detergent and warm water. Rinse with clean water. Sanitize the bin with a solution of one tablespoon of bleach and one gallon of water. Rinse thoroughly with clean water. 4. Check that all drain connections are in place. 5. Reconnect power to the unit. 6.
SERVICING Design ■ Features ■ Performance 6. When the initial three-minute fill cycle is complete, the unit will enter ice making and refrigeration mode (1) if the bin is empty or below the sensor. However, after the first slab of cubes is harvested, the controller will follow the logic defined in #5 above and realizing the refrigerator is too warm, will continue in refrigeration only mode (3) until the requirement is satisfied.
SERVICING Design ■ Features ■ Performance SEQUENCE OF OPERATION Mode 1: Ice Making and Refrigeration NO REFRIGERATION FLOW REFRIGERATION FLOW HIGH PRESSURE LOW PRESSURE TRANSITIONAL PRESSURE IN CAPILLARY TUBE H REF VALVE REFRIGERATION VALVE (LOWER) L L REFRIGERATOR EVAPORATOR ON C L L REF VALVE REFRIGERATION BYPASS VALVE (UPPER) L L OFF ICE MAKER EVAPORATOR L C L L ACCUMULATOR H2O IN WATER SUPPLY OFF L C C H2O PUMP WATER CIRCULATION PUMP ON L SUCTION TUBE H HOT GAS HOT GAS BYPASS VALV
SERVICING Design ■ Features ■ Performance Mode 2: Ice Making and No Refrigeration NO REFRIGERATION FLOW REFRIGERATION FLOW HIGH PRESSURE LOW PRESSURE TRANSITIONAL PRESSURE IN CAPILLARY TUBE REF VALVE REFRIGERATION VALVE (LOWER) H L REFRIGERATOR EVAPORATOR OFF C L REF VALVE REFRIGERATION BYPASS VALVE (UPPER) ON L ICE MAKER EVAPORATOR L C ACCUMULATOR H2O IN WATER SUPPLY OFF L C C H2O PUMP WATER CIRCULATION PUMP ON L SUCTION TUBE H HOT GAS HOT GAS BYPASS VALVE ON FAN CONDENSER FAN L OF
SERVICING Design ■ Features ■ Performance Mode 3: Refrigeration and No Ice Making NO REFRIGERATION FLOW REFRIGERATION FLOW HIGH PRESSURE LOW PRESSURE TRANSITIONAL PRESSURE IN CAPILLARY TUBE H REF VALVE REFRIGERATION VALVE (LOWER) L L REFRIGERATOR EVAPORATOR ON C L L REF VALVE REFRIGERATION BYPASS VALVE (UPPER) L L OFF ICE MAKER EVAPORATOR L C L L ACCUMULATOR H2O IN WATER SUPPLY OFF L C C H2O PUMP WATER CIRCULATION PUMP OFF L SUCTION TUBE H HOT GAS HOT GAS BYPASS VALVE ON FAN CONDENSE
SERVICING Design ■ Features ■ Performance Mode 4: Ice Harvest (No Refrigeration Possible) REF VALVE REFRIGERATION VALVE (LOWER) NO REFRIGERATION FLOW REFRIGERATION FLOW FLOW DIRECTION UNIFORM PRESSURE DURING HOT-GAS HARVEST MODE REFRIGERATOR EVAPORATOR OFF REF VALVE REFRIGERATION BYPASS VALVE (UPPER) ON ICE MAKER EVAPORATOR ACCUMULATOR H2O IN WATER SUPPLY H2O PUMP WATER CIRCULATION PUMP ON OFF SUCTION TUBE HOT GAS HOT GAS BYPASS VALVE OFF FAN CONDENSER FAN ON ON DISCHARGE TUBE COMP - COMPRES
SERVICING Design ■ Features ■ Performance Mode 5: All Satisfied REF VALVE REFRIGERATION VALVE (LOWER) NO REFRIGERATION FLOW REFRIGERATOR EVAPORATOR OFF UNIFORM PRESSURE DURING SATISFIED MODE REF VALVE REFRIGERATION BYPASS VALVE (UPPER) ON ICE MAKER EVAPORATOR ACCUMULATOR H2O IN WATER SUPPLY H2O PUMP WATER CIRCULATION PUMP OFF OFF SUCTION TUBE HOT GAS HOT GAS BYPASS VALVE OFF FAN CONDENSER FAN OFF OFF DISCHARGE TUBE COMP - COMPRESSOR CAPILLARY TUBE DRYER CONDENSER Bin sensor: Satisfied - bi
SERVICING Design ■ Features ■ Performance Mode 6: Water Fill - No Refrigeration Required REF VALVE REFRIGERATION VALVE (LOWER) NO REFRIGERATION FLOW UNIFORM PRESSURE DURING FILL MODE REFRIGERATOR EVAPORATOR OFF REF VALVE REFRIGERATION BYPASS VALVE (UPPER) ON ICE MAKER EVAPORATOR ACCUMULATOR H2O IN WATER SUPPLY H2O PUMP WATER CIRCULATION PUMP ON OFF SUCTION TUBE HOT GAS HOT GAS BYPASS VALVE OFF FAN CONDENSER FAN OFF OFF DISCHARGE TUBE COMP - COMPRESSOR CAPILLARY TUBE DRYER CONDENSER RELAY
SERVICING Design ■ Features ■ Performance Mode 7: Cleaning (No Refrigerator Possible) REF VALVE REFRIGERATION VALVE (LOWER) NO REFRIGERATION FLOW UNIFORM PRESSURE DURING FILL MODE REFRIGERATOR EVAPORATOR OFF REF VALVE REFRIGERATION BYPASS VALVE (UPPER) ON ICE MAKER EVAPORATOR ACCUMULATOR H2O IN WATER SUPPLY H2O PUMP WATER CIRCULATION PUMP ON/OFF OFF/ON SUCTION TUBE HOT GAS HOT GAS BYPASS VALVE OFF FAN CONDENSER FAN OFF OFF DISCHARGE TUBE COMP - COMPRESSOR CAPILLARY TUBE DRYER CONDENSER REL
SERVICING Design ■ Features ■ Performance Mode 8: Water Fill with Refrigeration Required (Note: Normal Start-up with a warm refrigerator) NO REFRIGERATION FLOW REFRIGERATION FLOW HIGH PRESSURE LOW PRESSURE REF VALVE REFRIGERATION VALVE (LOWER) H L L REFRIGERATOR EVAPORATOR ON TRANSITIONAL PRESSURE IN CAPILLARY TUBE C L L REF VALVE REFRIGERATION BYPASS VALVE (UPPER) L L OFF ICE MAKER EVAPORATOR L C L L ACCUMULATOR H2O IN WATER SUPPLY ON L C C H2O PUMP WATER CIRCULATION PUMP OFF L SUCTION
SERVICING Design ■ Features ■ Performance THERMISTORS Condenser Thermistor The condenser thermistor senses the refrigeration system “high side” temperature. This is used in conjunction with the control board to determine the length of the freeze and harvest cycles. Thermistors generally fail due to moisture or physical damage. U-Line “high side” thermistors are encased in a specially-designed, moisture-resistant stainless cap.
SERVICING Design ■ Features ■ Performance CONTROLLER IMPORTANT The display and control board on the CLRCO2075 model was designed to be a diagnostic tool. The first thing that should be looked at is the display. Check for flashing lights to indicate that there may be a drain problem or a thermistor problem. If the unit is working properly when you arrive (or when the customer calls to set up service) check the display. If the #3 LED is flashing the customer may have a slow running drain.
SERVICING Design ■ Features ■ Performance IMPORTANT 1. Be sure the cycle selector switch (located in the lower right side of the grille) is set to “ON”. Display can be on when selector switch is “OFF”. 2. The controller will be set at the default setting of 38°F when it is first powered up. This setting will display on the LED and should satisfy most customer applications.
SERVICING Design ■ Features ■ Performance Check Lights on Control Board The lights on the control board indicate power to the labeled component. The exception is the “REF VALVE” (refrigeration valve). When this light is off, the refrigeration bypass valve is powered. 10 9 8 7 6 5 4 3 2 1 6 7 2 3 Thermistors: Ice/Ref 1 and 2 Cond to 3 and 4 Ref to 5 and 6 4 5 1 0 -1 -2 5 -3 -4 -5 4 3 2 1 CLRCO035 1. 2. 3. 4. PWR REF VALVE FAN H2O PUMP – (water circulating) 5. HOT GAS 6. H2O IN – water inlet 7.
SERVICING Compressor Design ■ Features ■ Performance COMP To energize the compressor touch the previously disconnected pink lead back to the board. You should hear the compressor start up and the green COMP light will illuminate. If it does not start check voltage at the compressor and at the output from the board. If the green light does not illuminate first remove both pink wires from the board and directly jump the two spade connectors together.
In deep vacuum 0 PSIG to 25" No Gas Lower than normal Undercharge Complete Restriction Higher than normal Overcharge Somewhat lower than normal-in vacuum Normal Normal Partial Restriction Suction Pressure System Condition Room temperature (cool) Room temperature (cool) Warm - near room temperature Warm - near room temperature Very cold may frost heavily Slightly below room temperature Suction Line Cool to hot Room temperature (cool) Very hot Hot Slightly warm to hot Very hot C
SERVICING Design ■ Features ■ Performance ICE THICKNESS ADJUSTMENT ! WARNING ! Do not touch electrical wires. Disconnect power to the ice maker before making any ice thickness adjustments. Your U-Line Clear Ice Maker uses advanced technology to make ice that is crystal clear. This technology cascades a flow of water over a chilled ice mold that is mounted vertically so no water sits in it. Because of this ice making technology, clear ice cubes differ significantly from regular ice cubes.
SERVICING Design ■ Features ■ Performance 1. Disconnect power to the unit. ACCESS PANEL SCREWS WARMER SET TEMP COLDER CLRCO030 Access Cover 2. Remove the screws securing the front access panel.
SERVICING Design ■ Features ■ Performance 3. Locate the ice cube thickness adjustment dial on the control board. Turn the dial clockwise (+ number) to thicken or counterclockwise (- number) to thin the ice bridge. IMPORTANT Ice thickness adjustment dial should be turned only one increment (number on dial) at a time. Allow the ice maker to stabilize for 24 hours before making further adjustments.
SERVICING Design ■ Features ■ Performance TROUBLESHOOTING 1 ! WARNING ! DO NOT service the unit until the main electrical power has been disconnected. Not refrigerating (compressor and fan are operating) CAUSE REMEDY a. Little or no frost pattern on evaporator 2 Not refrigerating (compressor not operating, fan operating) CAUSE REMEDY a. b. c. d. 3 a. Check for sealed system leak or restriction Wire off or broken Defective compressor - check resistence Defective overload Defective relay a. b. c. d.
SERVICING 8 Design ■ Features ■ Performance No ice production CAUSE REMEDY a. No water supplied to unit b. Stand pipe not inserted in water trough 9 a. Check that water is connected and turned on b. Insert stand pipe securely into water trough Low ice production CAUSE REMEDY a. High ambient temperatures around unit a. Low ice rate is normal with high ambient temperatures b. Run the unit through a clean cycle c. Adjust ice thickness dial d. Clean condenser coil b.
SERVICING Design ■ Features ■ Performance CLR2075 Wiring Diagram 10 9 8 7 6 5 4 3 2 1 2 3 Thermistors: Ice/Ref 1 and 2 Cond to 3 and 4 Ref to 5 and 6 4 5 1 0 -1 -2 -3 -4 -5 WHITE GREEN RED BLACK RED BLACK WHITE GREEN 35 THIS SIDE TO DISPLAY CLRCO028
SERVICING Design ■ Features ■ Performance PARTS LISTING How to Order Replacement Parts 1. Locate the illustration(s) for the model you are servicing. 2. Refer to the area where the desired part would be installed, locate the part and note the item number assigned to it. 3. Locate the item number in the left column of the parts listing which is on the next page from the product illustration. Note the full description and the corresponding part number.
CLRCO2075 MODEL Design ■ Features ■ Performance NOTES 37
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (1 OF 3) 11 12 13 10 14 2 3 4 5 6 1 27 26 7 15 25 16 17 8 9 24 22 18 23 21 19 20 CLRCO032 38
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (1 OF 3) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Description Door Assembly Door Handle Top Door Handle Bottom Door Gasket (outer) Door Gasket (vertical) Door Shelf Door gasket (horizontal) Door Switch Bracket Pivot Plate Threaded Hole Plug Light Cover Lamp Bulb Refrigerator Evaporator Assembly Hinge Assembly Top R/H Control Board Assembly Lower Front Panel Display Board Leveling Leg Hinge Assembly B
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (2 OF 3) 5 6 4 7 3 2 8 1 9 10 11 12 13 23 14 22 21 20 19 15 18 17 16 CLRCO033 40
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (2 OF 3) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 Description Cover - Front Evaporator Assembly Water Dispersion Receptacle Tube Retainer Pre-formed Tube - White Circulation Pump Well Nut Circulation Pump Cover Hook for Ice Scoop Water Trough Stand Pipe Drain Tube - Clear Drain Pan Compressor Overload Relay Dryer Condenser Fan Motor Condenser Fan Blade Condenser Assembly Rocker switch wire harness Rocker Switch
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (3 OF 3) 1 2 13 14 3 10 12 9 4 11 5 6 8 7 CLRCO034 42
CLRCO2075 MODEL PARTS Design ■ Features ■ Performance MODEL CLRCO2075 (3 OF 3) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description Heat Exchanger Assembly Back Panel Valve Manifold Assembly Power Cord Water Valve Plastic Nut & Sleeve Water Line Assembly 90 Degree Brass Fitting Drain Pump Drain Tubing - White Hot Gas Bypass Valve Assembly Coil Only - Hot Gas Bypass Valve Assembly Wire - Pump to Power Cord Coil Only - Refrigeration Valve White 72006-S 11969-02 80-37005-00-S 2894 2716 41254 404-30 41826 P60
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FAX PARTS ORDER FORM FAX # 414-354-7905 Account# ____________________________________ Ship to:______________________________________ Bill to: ______________________________________ ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ Attention: Date:________________________________________ P.O.
P.O. Box 245040 Milwaukee, WI 53224-9540 Phone 414.354.0300 FAX 414.354.7905 Printed in U.S.A.
