U-Line U-1075WC - Manual

1-4 Section 1 - General Information U-LINE CORPORATION 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...

1-5 Section 1 - General Information PRODUCT LIABILITY POLICY Field service technicians are authorized to make an initial assessment. If in the servicer’s judgment the damage is the result of a product defect, the product would be removed and returned to U-Line in an unaltered condition. The dealer w...

1-6 Section 1 - General Information SERIAL NUMBER FORMAT The serial number is divided into four segments. A typical serial number is 089469-01-0002. The first two digits of the first segment, 08, represents the year the unit was made. The next four digits of the first segment, 9469, represent the sh...

1-7 Section 1 - General Information PARTS LISTING How to Order Replacement Parts 1. Refer to Service Parts and locate the illustration(s) for the model you are servicing. 2. Locate the desired part to be serviced and note the item number assigned to it. 3. Locate the item number within the parts lis...

2-1 Section 2 - Troubleshooting CUSTOMER CALL GUIDE U-Line’s warranty does not cover customer education calls. It has been reported that as high as 50% of all service calls performed are customer education calls. The following guide has been developed to help answer frequently asked questions. It ca...

2-2 Section 2 - Troubleshooting REFRIGERATION SYSTEM DIAGNOSIS GUIDE System Condition Suction Pressure Suction Line Compressor Discharge Condenser Capillary Tube Evaporator Wattage Normal Normal Slightly below room temperature Very hot Very hot Warm Cold Normal Overcharge Higher than normal Very col...

2-3 Section 2 - Troubleshooting ICE MAKER DIAGNOSIS FLOW CHART DOES THE UNIT REFRIGERATE? Sealed System LeakElectrical FailureCompressor FailureFan Motor FailureDefrost System Failure Low VoltageVoltage DropWiring Temperature Control FailureWater AdjustmentBin Switch Failure NO NO EVER YWHERE INTERM...

2-4 Section 2 - Troubleshooting TROUBLESHOOTING DANGER Never attempt to repair or perform maintenance on the unit until the main electrical power has been disconnected from the unit Additional specific troubleshooting information can be found in Theory of Operation - Section 3, under the applicable ...

3-1 Section 3 - Service and Repair 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. Dur...

3-2 Section 3 - Service and Repair Frost Free Refrigeration COOLING MODE • Bypass solenoid closed.• Evaporator fan operating.• Refrigerant flows through capillary tubes.• Normal vapor/compression cycle refrigeration (see page 3- 1). DEFROST MODE • Bypass solenoid valve open.• Refrigerant flows throu...

3-4 Section 3 - Service and Repair COMPRESSOR/ELECTRICAL SPECIFICATIONS 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 sh...

3-6 Section 3 - Service and Repair ICE MAKER OPERATING CYCLES Freeze Cycle ( Figure 7 ) • Temperature control terminals 2 and 3 are closed. • Power to the compressor.• Power to the condenser fan. Figure 7. Freeze Cycle\ Harvest-1 Cycle ( Figure 8 • Temperature control terminals 2 and 3 are open - 2 ...

3-7 Section 3 - Service and Repair Harvest-2 Cycle ( Figure 9 ) • Ice maker ejector blades reach approximately 2:00 position and cam depresses the hold switch. Power goes through the hold switch to the ice maker motor and mold heater. • Ejector blades stall on ice and ice maker motor pulsates until ...

3-8 Section 3 - Service and Repair ICE MAKER OPERATING CYCLES (U-CO29F MODEL) Note: The refrigeration system operates independently of the ice maker. This is a new design for U-Line. All other U-Line ice makers use a double throw control system where the unit is either in a freeze mode or harvest mo...

3-9 Section 3 - Service and Repair TEMPERATURE CONTROL SPECIFICATIONS Double Throw Ice Maker Thermostat Numbers 4548, AR-19-12, 2636, 2690, 2691, 2717, 2783, 2782, 2781, 2780 These temperature controls are double throw, single pole controls. The sensing tube is inserted into the ice maker mold and s...

3-10 Section 3 - Service and Repair LIMIT SWITCH SPECIFICATIONS • Normally closed Bi-metal switch• Open temperature: 104°F• Close temperature: 83°F The function of this switch is to open in the event of an overheating condition. This bi-metal thermostat is normally closed and does not initiate the i...

3-11 Section 3 - Service and Repair REPLACING ICE MAKER ASSEMBLY (CO29F ONLY) 1. Unplug the unit from the main power source. 2. Disconnect ice maker wire harness at plug (1). 3. Remove control capillary tube from sensing tube on ice maker assembly (2). 4. Remove water inlet tube. 5. Remove front cov...

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4-1 Section 4 - Parts 220 VOLT CONVERSION LIST All models listed in this manual are equipped to run on 110/115 volt. This document is a conversion list for the applicable 220 volt parts for the following models: • ULN-SP18• ULN-95• ULN-98• SS-1095• U-CO29A• U-CO1175 110V P/N 220V P/N Description 526...

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5-1 Section 5 - Wiring Diagrams COMBO 29FF WIRING DIAGRAM 42180 rev. D EMBRACO WHITE BLUE COMPRESSOR ICEMAKER CONTROL BLACK WHITE POWER CORD ASSEMBLY GREEN GROUND BLACK-HOT (SMOOTH) BLACK-NEUTRAL (RIBBED) WHITE BLACK OVERLOAD BLACK ROCKER SWITCH FREEZER CONTROL BLACK BLACK PURPLE RED YELLOW BROWN WH...

For Every Room There is a U-Line ® ABOUT U-LINE Building on 45 years, U-Line has captivated those with an appreciation for the finer things with exceptional design, inspired innovations and attention to even the smallest details. U-Line is synonymous with premium built-in undercounter ice making, re...