Service and Parts Manual Supplement For Models • 2075DWRR • CO2075DWR • 2075DWRWC 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 General Information 2075DWRR 2075DWRWC CO2075DWR 1
Design ■ Features ■ Performance NOTES 2
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 2075DWRR, CO2075DWR and 2075DWRWC. 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 031234-01-5678. The first two digits of the first segment, 03, represent the year the unit was made. The next four digits, 1234, represent the shop order number. Every model is assigned a new shop order number at the beginning of a production run. The second two digit segment, 01, represents the month the unit was made.
General Information
GENERAL INFORMATION Design ■ Features ■ Performance
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 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.
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.
2075DWRR
2075DWRR Design ■ Features ■ Performance
2075DWRR Design ■ Features ■ Performance COMPRESSOR/ELECTRICAL SPECIFICATIONS 2075DWRR EMU30HSC OVERLOAD PROTECTOR C RELAY COVER S R STARTING RELAY UL183-3C 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.
2075DWRR Design ■ Features ■ Performance REFRIGERATION SYSTEMS Normal Vapor/Compression Cycle Refrigeration • Refrigerant is pumped from the compressor to the condenser as a high pressure, high temperature vapor. • As the refrigerant cools in the high pressure condenser, the vapor condenses to liquid. During this phase change, a great amount of heat is rejected with the help of the condenser fan. • The liquid then flows to the dryer where it is strained and filtered.
2075DWRR Design ■ Features ■ Performance THERMISTOR The thermistor senses the compartment temperature. This is used in conjunction with the control board to determine the length of the refrigeration cycle. Thermistors generally fail due to moisture or physical damage. SERVICE NOTES 2075DWRR The 2075DWRR has the same basic refrigeration system as the 2075R with a few exceptions. • The compressor is a high efficiency Embraco EMU30HSC.
2075DWRR Design ■ Features ■ Performance THE ELECTRONIC TEMPERATURE CONTROLLERS 2075DWRR • The controller has a four minute minimum off-cycle regardless of the thermistor status. • The controller has a 4° differential built into it for the refrigerator thermistor. When it senses 38°F, the refrigerator will cool until the thermistor senses 36°F, and will not re-initiate cooling until the thermistor senses 40°F.
2075DWRR Design ■ Features ■ Performance 2075DWRR 1 2 WARMER SET TEMP COOLER CLRCO011B The temperature controller is located in the top drawer. The LED display shows the temperature set point and is calibrated in degrees Fahrenheit. The controller is factory programmed for a set point of 38°F which will show when the unit is first powered-up. To display actual temperature, press the “WARMER” button momentarily.
75DWRR REFRIGERATION SYSTEM DIAGNOSIS GUIDE SystemSuction Condition Suction Pressure Compressor Line Evaporator Tube Wattage Normal Normal Slightly below room temperature Very hot Very hot Warm Cold Normal Overcharge Higher than normal Very cold may frost heavily Slightly warm to hot Hot to warm Cool Cold Higher than normal Undercharge Lower than normal Warm - near room temperature Hot Warm Warm Extremely cold near inlet outlet below room temperature Lower than normal Partia
2075DWRR Design ■ Features ■ Performance 2075DWRR WIRING DIAGRAM 42184-F 15
2075DWRR TROUBLESHOOTING Design ■ Features ■ Performance ! WARNING ! DO NOT service the unit until the main electrical power has been disconnected. 2075DWRR 1 Not refrigerating (compressor and fan are operating) Cause a. Little or no frost pattern on evaporator 2 Not refrigerating (compressor not operating, fan operating) a. b. c. d. 3 Cause Wire off or broken Defective compressor - check resistence Defective overload Defective relay a. b. c. d.
2075DWRR Design ■ Features ■ Performance 8 Noisy Cause a. Copper refrigeration tube touching cabinet b. Fan blade touching shroud c. Fan blade obstruction (wiring, foam insulation, packaging material) 9 Fresh food or wine temperature too cold a. b. c. d. 10 Remedy a. Carefully adjust tubing b. Adjust fan mounting or shroud c. Remove obstruction Cause Controller set too cold Defective controller Wiring defect Thermistor not pushed all the way into the well a. b. c. d.
2075DWRR Design ■ Features ■ Performance 2075DWRR (1 OF 2) 12 4 5,6 7 8 9 10 11 3 2 1 22 25 14 13 26 7 15 16 24 17 23 18 19 20 DWR023 21 22 19 18
2075DWRR Design ■ Features ■ Performance 2075DWRR (1 OF 2) 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 Description Control Housing Control Assembly Organizer Assembly Top Bin Switch Box Light Switch Drawer Slides Evaporator Assembly Anti-Tip Components Light Cover Light Bulb Back Panel Drain Trough Control Harness Drain Cup Drain Tube Grille Top Drawer (No Front) Door Gasket Bottom Drawer (No Front) Crisper, Bottom Door Assembly Crisper Shelf Door Handle Bottom Door Handle T
2075DWRR Design ■ Features ■ Performance 2075DWRR (2 OF 2) 12 13 3 1 2 4 5 10 6 7 8 11 9 14 8 DWR024 20
2075DWRR Design ■ Features ■ Performance 2075DWRR (2 OF 2) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Description Rocker Switch Transformer Thermo Cutoff Switch Condenser Fan Blade Fan Motor Drain Pan Leg Levelers Drier Capacitor Compressor Assembly Overload Relay Power Cord Black 2053 68014 66001 2303-S 5188 5263 31550-1-F 41319 2694 71008 70077-S 71009 71010 2887 21 Stainless Steel 2053 68014 66001 2303-S 5188 5263 31550-1-F 41319 2694 71008 70077-S 71009 71010 2887
Design ■ Features ■ Performance NOTES 22
2075DWRWC
2075DWRWC Design ■ Features ■ Performance
2075DWRWC Design ■ Features ■ Performance COMPRESSOR/ELECTRICAL SPECIFICATIONS 2075DWRWC EMU30HSC OVERLOAD PROTECTOR C RELAY COVER S R STARTING RELAY UL183-3C 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.
2075DWRWC Design ■ Features ■ Performance REFRIGERATION SYSTEMS Normal Vapor/Compression Cycle Refrigeration • Refrigerant is pumped from the compressor to the condenser as a high pressure, high temperature vapor. • As the refrigerant cools in the high pressure condenser, the vapor condenses to liquid. During this phase change, a great amount of heat is rejected with the help of the condenser fan. • The liquid then flows to the dryer where it is strained and filtered.
2075DWRWC Design ■ Features ■ Performance • From the dryer, the refrigerant flows through the capillary tube which meters the liquid refrigerant to the evaporator. The pressure of the refrigerant is reduced to the evaporating or low side pressure. • The reduction of pressure on the liquid refrigerant causes it to boil or vaporize until it reaches saturation temperature.
2075DWRWC Design ■ Features ■ Performance The top and bottom valve can never be open at the same time. After initial startup whichever compartment calls for cooling first, will have priority. Once the setpoint is achieved the other compartment will be cooled if necessary. When both compartments have reached setpoint and the compressor shuts off, the last bypass valve that was open will remain open for four minutes.
2075DWRWC Design ■ Features ■ Performance THE ELECTRONIC TEMPERATURE CONTROLLERS 2075DWRWC DWR034 The temperature controls are integrated in the top, front drawer panel. They consist of an LED display and touch sensors for each drawer and a touch sensor to control the lighting (“ ”, “ ” and “ ”). The LED displays show the drawer’s temperature set point, and are calibrated in degrees Fahrenheit. The controls are factory programmed for a set point of 60°F for the top drawer and 40°F for the bottom drawer.
2075DWRWC INTERIOR LIGHTING Design ■ Features ■ Performance (2075DWRWC) The interior lighting can be controlled by the controller. Each time the light “ lighting is scrolled through the following options: Touch Touch Touch Touch ” symbol is touched, the once – Both compartment lights on. twice – Top compartment light on. three times – Bottom compartment light on. four times – Both compartment lights off.
System Condition Suction Pressure Normal Normal Overcharge Higher than normal Undercharge Suction Line Condenser Capillary Tube Evaporator Wattage Very hot Very hot Warm Cold Normal Very cold may frost heavily Slightly warm to hot Hot to warm Cool Cold Higher than normal Lower than normal Warm - near room temperature Hot Warm Warm Extremely cold near inlet outlet below room temperature Lower than normal Partial Restriction Somewhat lower than normal-in vacuum Warm - near room
BLACK GREEN GROUND BLACK-NEUTRAL (RIBBED) WHITE WHITE WHITE CONTROL BOARD BOT VALVE 30 (WHITE) 9 (BLACK) 8 7 (BLACK W/YELLOW) 6 (RED) 5 (YELLOW) 4 (PURPLE) 3 10 9 8 7 6 5 4 3 2 1 (BROWN) 2 (BLUE) 1 BLACK BLACK WITH YELLOW RED COND FAN YELLOW PURPLE BLACK BROWN BOTTOM TOP DRAWER DRAWER THERMISTORS OVERLOAD BOTTOM LAMP BLUE TOP LAMP DISPLAY BOARD CONNECTOR TOP VALVE 2075DWRWC BLACK-HOT (SMOOTH) 2075DWRWC WIRING DIAGRAM POWER CORD ASSEMBLY WHITE BLACK CAPACITOR EMBRACO COMPRESSOR D
2075DWRWC Design ■ Features ■ Performance TROUBLESHOOTING ! WARNING ! DO NOT service the unit until the main electrical power has been disconnected. 2075DWRWC Before servicing this unit, take readings from the electronic control (refer to The Electronic Temperature Control for checking actual temperatures, if needed). These actual readings are important to take before having the drawers open for more than 30 seconds to obtain accurate readings.
2075DWRWC Design ■ Features ■ Performance 3 Drawers will not close properly • • • The drawer slides contain a self-closing feature which engages when the drawer is about 1 inch from being closed. At the point the closers engage, there may be some resistance. If this resistance is hard to overcome, try closing the drawers with more force a couple times and then try slowly again. If, during shipment, the unit has been mishandled, the drawer slide closers may become disengaged.
2075DWRWC Design ■ Features ■ Performance CASCADING PARTS NOT OPERATING PROPERLY A - Cascade mechanism in the correct opening position. DWR065 B - Cascade mechanism in the correct closing position.
2075DWRWC Design ■ Features ■ Performance 2075DWRWC (1 OF 2) 8 7 21 6 5 4 3 2 9,10 1 11 17 22 3 12 14 13 15 16 17 DWR067 20 19 18 34
2075DWRWC Design ■ Features ■ Performance 2075DWRWC (1 OF 2) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Description Drawer & Rack Assembly Bottom Drawer & Rack Assembly Top Cascade Assembly Left Side Top Rack Assembly Drawer Slide Assembly Evaporator Assembly Anti-Tip Brackets Back Panel Lens Cover Light Bulb Drain Trough Drain Funnel Drain Tube Grille Cascading Rack Assembly Cascade Rack Latch Assembly Cascade Assembly Right Side Drawer Wine Caddy Assembly Door Gasket Drawer Handle In
2075DWRWC Design ■ Features ■ Performance 2075DWRWC (2 OF 2) 12 13 1 2 3 11 4 10 9 8 6 7 6 5 DWR068 36
2075DWRWC Design ■ Features ■ Performance 2075DWRWC (2 OF 2) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 Description Board Condenser Assembly Fan Blade Fan Motor Power Cord Valve Coil Valve Assembly Drier Compressor Assembly Leveling Leg Capacitor Overload Relay Black 68019-S 2303-S 5188 5263 2916 73002 73002-S 2694 70077-S 41319 71008 71009 71010 37 Stainless Steel 68019-S 2303-S 5188 5263 2916 73002 73002-S 2694 70077-S 41319 71008 71009 71010
2075DWRWC Design ■ Features ■ Performance NOTES 38
CO2075DWR
CO2075DWR Design ■ Features ■ Performance
CO2075DWR Design ■ Features ■ Performance EMI70HER OVERLOAD PROTECTOR C STARTING RELAY S R RELAY COVER UL183-3D 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.
CO2075DWR Design ■ Features ■ Performance U-LINE FROST FREE REFRIGERATION SYSTEM Cooling Mode: • Bypass solenoid valve closed • Evaporator fan operating • Refrigerant flows through capillary tube • Normal vapor/compression cycle refrigeration Defrost Mode: • Bypass solenoid valve open • Refrigerant flows through bypass system • Vapor flows from condenser to evaporator without a phase change COMPRESSOR CONDENSER DRYER EVAPORATOR FLOW WHEN SOLENOID VALVE IS CLOSED CAPILLARY TUBE FLOW WHEN SOLENOID VALV
CO2075DWR Design ■ Features ■ Performance SERVICE NOTES CO2075DWR The CO2075DWR has the same basic refrigeration system as the CO2075F with a few exceptions. • The compressor is an Embraco EMI70HER. • The electro-mechanical gas bulb is replaced with an electronic controller which features a digital temperature display. • The mullion between the two drawers has a low wattage “anti sweat” surface heater to prevent condensation on the mullion. • There are two interior lights and light switches.
CO2075DWR Design ■ Features ■ Performance When checking the thermistors to see if they are reading accurately, it is common to place them in an icebath to see if they read 32°F. Do not place them directly in the water. Use a plastic bag to protect them from moisture. The freezer and ice maker should read 32°F in icewater, however the refrigerator thermistor should read 36°F. There is a built-in 4°F offset in this reading due to its location in the cabinet.
CO2075DWR Design ■ Features ■ Performance THE ELECTRONIC TEMPERATURE CONTROLLER 1 2 3 WARMER SET TEMP COOLER CLRCO011 The temperature controller is located in the top drawer. It consists of an LED display, two LED status indicator lights and three touch pad buttons. The LED display shows the compartment temperature set point and is calibrated in degrees Fahrenheit. The controller is factory programmed for a set point of 38°F for the top drawer which will show when the unit is first powered up.
System Condition Suction Pressure Normal Normal Overcharge Higher than normal Undercharge Suction Line Condenser Capillary Tube Evaporator Wattage Very hot Very hot Warm Cold Normal Very cold may frost heavily Slightly warm to hot Hot to warm Cool Cold Higher than normal Lower than normal Warm - near room temperature Hot Warm Warm Extremely cold near inlet outlet below room temperature Lower than normal Partial Restriction Somewhat lower than normal-in vacuum Warm - near room
CO2075DWR Design ■ Features ■ Performance REFIGERATOR SENSOR FREEZER SENSOR ICEMAKER SENSOR DWR036 CO2075DWR WIRING DIAGRAM 45
CO2075DWR TROUBLESHOOTING Design ■ Features ■ Performance ! DANGER ! DO NOT service the unit until the main electrical power has been disconnected. Before servicing this unit, take readings from the electronic control (refer to The Electronic Temperature Control for checking actual temperatures if needed). These actual readings are important to take before having the drawers open for more than 30 seconds to obtain accurate readings.
CO2075DWR Design ■ Features ■ Performance 2. Some cooling • Clean condenser. • Check condenser fan. • Possible system leak. 3. No cooling • Check compressor/fan operation • Check refrigeration system pressure • Check wiring and power at circuit board 4. Noise • This is a frost free unit with two fans, compressor, and two solenoid valves. Some noise is normal such as a hum from the fans/compressor. Also, during an ice harvest it is normal to hear water filling the mold and cubes dropping in the bucket.
CO2075DWR Design ■ Features ■ Performance Ice maker Operation DWR057 1. Freeze cycle • Ice maker relay is not energized. • Unit is cooling ice maker down to the 15°F setpoint. • The unit may cycle on and off as it is pulling ice maker to setpoint in order to maintain ideal refrigerator and freezer temperatures. • The minimum ice making cycle time as permitted by the timing circuit in the circuit board is 75 minutes.
CO2075DWR Design ■ Features ■ Performance 2. Harvest cycle 1 DWR058 • Ice maker relay on circuit board energizes for 30 seconds. This allows power to the ice maker to allow the blades rotate. • Refrigeration system is independent of the ice maker. • The bin arm must be in the fully lowered position and the drawer must be closed, to initiate this cycle. The drawer switch must be depressed for the ice maker to cycle.
CO2075DWR Design ■ Features ■ Performance 3. Harvest cycle 2 DWR055 • • • • • The drawer switch must remain depressed for this cycle to continue. The ice maker relay is now de-energized This cycle initiates when the blades move to approximately the 2 o’clock position. Ejector blades stall on the ice and pulse until the mold heater warms the mold and releases the ice. This cycle may last a couple minutes.
CO2075DWR Design ■ Features ■ Performance 4. Water fill cycle DWR056 • This cycle initiates when the blades move to approximately the 10 o’clock position. • At this point the ice has moved out of the mold and is dropping into the bucket. • The ice maker switch is depressed for about seven seconds while the mold fills with water. The water fill is approximately 120 ml. • At the end of the fill cycle, the blades stop at the 12 o’clock position and wait for another harvest cycle to begin. 5.
CO2075DWR Design ■ Features ■ Performance 3 4 5 2 1 6 2 DWR041 DISASSEMBLY PROCEDURES Note: Échelon models do not require removal of the ice maker or freezer housing to access the fan motor, drain or evaporator. To 1. 2. 3. 4. 5. 6. 7. 8. replace evaporator fan motor: Disconnect unit from power source. Remove two screws (1) holding evaporator fan cover to evaporator cover. Unplug fan connection. Remove two nuts (4) and two washers (5) holding the fan to the fan bracket. Replace with new fan.
CO2075DWR Design ■ Features ■ Performance REPLACING ICE MAKER ASSEMBLY 2 5 4 1 5 DWR064 3 1. 2. 3. 4. 5. 6. 7. Remove unit from installation. Disconnect water and unplug unit. Disconnect ice maker wire harness at plug in back of unit (1). Remove thermistor from the sensing tube on ice maker assembly (2). Remove water inlet tube. Remove front cover (3). Advance ejector blade to the 3 o’clock position by turning the 5/16" hex head on the small brass gear counterclockwise (4). 8.
CO2075DWR Design ■ Features ■ Performance NOTES 54
CO2075DWR Design ■ Features ■ Performance REPLACING MOLD AND HEATER 1 6 3 2 5 4 5 3 DWR061 1. Remove ice maker assembly. Refer to REPLACING ICE MAKER ASSEMBLY. 2. Remove one stripper screw (1) and stripper (2). 3. Remove three face plate screws (3) and face plate. 4. Remove one screw (4) and detach limit switch from mold. 5. Detach heater leads (5). 6. Remove two screws (6) and mold from support housing. 7. To assemble, replace parts in reverse order. 8. Install the ice maker assembly.
CO2075DWR Design ■ Features ■ Performance CO2075DWR (1 OF 3) 10 5 9 8 7 2 6 4 1 3 30 11, 12 13 21 24 23 20 18 22 25 19 17 16 26 15 28 29 14 27 25 DWR025 56
CO2075DWR Design ■ Features ■ Performance CO2075DWR (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 28 29 30 Description Control Housing Display Board Assembly Control Harness Organizer Assembly Top Bin Drawer Slides Light Switch Top Drawer Chimney Anti-Tip Components Back Panel Light Cover Light Bulb Light Switch Bottom Drawer Evaporator Fan Cover Evaporator Cover Insulator Chimney Panel Evaporator Assembly Evaporator Fan Blade Evaporator Fan Drain Pan Assembly Drai
CO2075DWR Design ■ Features ■ Performance CO2075DWR (2 OF 3) 7 2 4 3 1 8 2 5 6 17 18 16 15 14 9 13 12 11 DWR063 10 58
CO2075DWR Design ■ Features ■ Performance CO2075DWR (2 OF 3) Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Description Water Line Assembly Water Valve Plastic Nut & Sleeve Brass Fitting Drier Compressor Assembly Overload Relay Power Cord Leg Levelers Rocker Switch Control Board Assembly Condenser Drain Pan Hot Gas Bypass Assembly Bypass Solenoid Coil Only Fan Blade Fan Motor Black 404-CO2075DWR 2552A 41254 41826 72018 70079-FFS 71025 71026 2915 41319 2053 68023-S 2303-FFS 31550-1-F 73002-FFS 73002-1
CO2075DWR Design ■ Features ■ Performance CO2075DWR (3 OF 3) 18 13 14 15 16 17 19 12 20 11 21 8 9 3 1 4 5 10 22 6 7 2 30 35 34 33 32 23 25 10 29 28 27 26 31 24 36 60 DWR060
CO2075DWR Design ■ Features ■ Performance CO2075DWR (3 OF 3) Note: This ice maker is used only on CO2075DWR. ! Use only genuine U-Line replacement parts. U-Line ice maker parts are not the same as standard FSP Whirlpool parts. Using non-U-Line parts can reduce ice rate, cause water to overflow from ice maker mold, damage the unit, and may void the warranty.
Design ■ Features ■ Performance NOTES 62
INTRODUCTION Design ■ Features ■ Performance NOTES 63
INTRODUCTION Design ■ Features ■ Performance NOTES 64
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.