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Summary of Contents for Premium levella PRN165DX
- Page 1 WINE&BEVERAGE COOLER SVC MANUAL SVC MANUAL CAUTION: BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
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Page 2: Table Of Contents
CONTENTS SAFETY PRECAUTIONS ........................... PARTS IDENTIFICATION .......................... USING INTRODUCTION .......................... USING INTRODUCTION .......................... REFRIGERATION CIRCUIT ........................DISASSEMBLY……………………………………………………………………………………………………………………………………….. WIRING DIAGRAM.. ........................ELECTRIC COMPONENTS............ ............…. TROUBLESHOOTING.. ........................COOLING CIRCUIT MAINTENANCE.. ....................EXPLODED VIEW EXPLODED VIEW ................ ............ -
Page 3: Safety Precautions
SAFETY PRECAUTIONS Page 1 The aim of such procedure is to describe the correct operations for safe The aim of such procedure is to describe the correct operations for safe repair and maintenance. The operations described below must be duly followed during repair operations: the producer disclaims any responsibility in case of lack of application or partial the producer disclaims any responsibility in case of lack of application or partial application of the procedure described. - Page 4 SAFETY PRECAUTIONS Page 2 DO NOT USE FLAMES OR HEAT SOURCES AND DO NOT SMOKE IN ALL THE AREA AROUND THE UNIT IF THE THE AREA AROUND THE UNIT IF THE REFRIGERANT USED IS R600a OR R290 AND IF ANY FLAMMABLE GASES OR AND IF ANY FLAMMABLE GASES OR OXYGEN OR OIL ARE USED DURING THE MAINTENANCE SERVICE...
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Page 5: Parts Identification
PARTS IDENTIFICATION Page 3 COOLER 1.Light box 2.Thermostat components 3.Doors 4.Decorative plate 5.Caster 6.Body ... -
Page 6: Using Introduction
USING INTRODUCTION Page 5 COOLER • When you install the unit in the shop, check that it is not under direct sunrays, it is in the colder area of the shop, there is free air ventilation all around the unit (otherwise the skin condensers cannot exchange heat) • If the unit was transported laid down, wait 24hour before plug in (to allow the oil of compressor to return to compressor) • Don't put food or drinks in the unit before the temperature inside is cold: plug in the empty unit and wait at least 1 hour that the pull down finish and the compressor starts to cycle ON and OFF, then load the unit • Temperature adjustment: press the set key to enter the setting state of the target temperature, the temperature display window displays the curren setting temperature and flashes, continue to press the Set key, the temperature changes cyclically between 0~10 , after adjusting to the target temperature, no key operation for 5 seconds, the target temperature automatically saves, exit the setting state... - Page 7 USING INTRODUCTION Page 6 COOLER • SEASONAL USE When the unit is kept unused for a long time, please take note of the following procedures: ‐ unplug the unit; ‐ clean and dry well the tank; ‐ leave the covers half open to prevent bad smells forming; ‐ cover the unit with a curtain, place it in a dry room and sheltered from the atmospheric agents. • Handle with care, do not throw things into the compartments that may damage the tank’s walls. • DON’T PUT WARM FOOD INSIDE THE COMPARTMENTS, THE FOOD’S TEMPERATURE SHOULD BE AT AMBIENT DON’T PUT WARM FOOD INSIDE THE COMPARTMENTS THE FOOD’S TEMPERATURE SHOULD BE AT AMBIENT TEMPERATURE OR BELOW. The food stored in the compartments should be packaged with non‐toxic plastic bags and the drinks properly sealed to avoid excessive ice build up on the walls.
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Page 8: Refrigeration Circuit
REFRIGERATION CIRCUIT Page 7 A schematic drawing of a household refrigerator with the simplest cycle option is shown in Fig. 1. The main components of the systems are the hermetic piston compressor (Fig.2), the ( g ) condenser, the non adiabatic capillary tube with the suction line heat exchanger, the evaporator and the cabinet. - Page 9 REFRIGERATION CIRCUIT Page 8 The compressor draws in the refrigerant fluid from the evaporator by reducing the pressure in this component. The fluid is compressed by the compressor and moves to the condenser. In the condenser the refrigerant fluid under high pressure releases heat to the environment and becomes liquid.
- Page 10 REFRIGERATION CIRCUIT Page 9...
- Page 11 REFRIGERATION CIRCUIT Page 10...
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Page 12: Disassembly
DISASSEMBLY Page 11 Remove light box 1.Use a Phillips screwdriver to remove four screws counterclockwise. Remove compressor compartment grid 2.Use a Phillips screwdriver to remove screws counterclockwise. -
Page 13: Wiring Diagram
WIRING DIAGRAM Page 12 This circuit diagram is for reference only. Please refer to the product nameplate for details... -
Page 14: Electric Components
ELECTRIC COMPONENTS Page 13 COMPRESSOR COMPRESSOR 1) Role The compressor intakes low temperature and low pressure gas evaporated from Evaporator of the Refrigerator, and condenses this gas to high Temperature and high pressure gas, and then plays delivering role to Condenser. 2) Composition The Compressor is Composed of Compressor Apparatus compressing gas, Compressor Motor moving Compressor Apparatus and Case protecting Compressor Apparatus and Motor. - Page 15 ELECTRIC COMPONENTS Page 14 PTC STARTER PTC-STARTER 5) Relation of PTC-Starter and OLP 1) Composition of PTC-Starter (1) If the power is off during operation of Compressor and the (1) PTC (Positive Temperature Coefficient) is a no-contact power is on before the PTC is cooled, (instant shut- off within semiconductor starting device which uses ceramic 2 min.
- Page 16 ELECTRIC COMPONENTS Page 15 OLP OVERLOAD PROTECTOR OLP-OVERLOAD PROTECTOR 1) Definition of OLP (1)OLP (OVER LOAD PROTECTOR) is attached to the Hermetic Compressor and protects the Motor by cutting off current in Compressor Motor in case of over rising temperature by Bimetal in the OLP Compressor Motor in case of over-rising temperature by Bimetal in the OLP.
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Page 17: Troubleshooting
TROUBLE SHOOTING Page 17... - Page 18 TROUBLE SHOOTING Page 18...
- Page 19 TROUBLE SHOOTING Page 19...
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Page 20: Failure Mode
TROUBLE SHOOTING Page 20 4 SERVICE DIAGNOSIS CHART 4. SERVICE DIAGNOSIS CHART FAILURE MODE POSSIBLE CAUSES MEASURES Not Cooling at all • Is the power cord unplugged from the outlet? • Plug to the outlet. • Check if the power switch is set to OFF. Ch k if th it h i t t OFF • Set the switch to ON. S t th it h t ON • Check if the fuse of power switch is shorted. - Page 21 TROUBLE SHOOTING Page 21 4 SERVICE DIAGNOSIS CHART 4. SERVICE DIAGNOSIS CHART FAILURE MODE POSSIBLE CAUSES MEASURES Abnormal noise • Is the unit positioned in a firm and even place? • Adjust the Adjustable feet and position in a firm place. • Are any unnecessary objects set in the back • Remove the objects. side of the unit? • Check if the Drip Tray is not firmly fixed. • Fix it firmly on the original position. • Check if the cover of mechanical room in below • Place the cover at the original position. and front side is taken out. • Check if the door packing is dirty with filth such as • Clean the door packing. To close the door is juice.
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Page 22: Cooling Circuit Maintenance
COOLING CIRCUIT MAINTENANCE Page 22 Capyllary Condenser Evaporator Compressor... -
Page 23: Troubleshooting Chart
COOLING CIRCUIT MAINTENANCE Page 23 TROUBLESHOOTING CHART TROUBLESHOOTING CHART TEMPERATURE STATE OF CAUSE FAILURE MODE REMARKS OF COMPRESSOR SHELL THE EVAPORATOR Freezer/ Freezer/ Low flowing sound of Refrigerant Low flowing sound of Refrigerant A little higher than A little higher than • Small discharge of refrigerant from • Small discharge of refrigerant from PARTIAL PARTIAL Refrigerator ... - Page 24 COOLING CIRCUIT MAINTENANCE Page 24 LEAKAGE DETECTION WORK FLOW LEAKAGE DETECTION WORK FLOW Frost Build up Can you figure out if in inlet only Does compressor Does frost build up there is a gas runs or not? in the Evaporator? leakage? Frost build up normally Check the flow rate/discharge of Normal Normal refrigerant in the circuit refrigerant in the circuit Charge Refrigerant and check Faulty Moisture Clog.
- Page 25 COOLING CIRCUIT MAINTENANCE Page 25 GENERAL OPERATION ON COOLING CIRCUIT GENERAL OPERATION ON COOLING CIRCUIT ITEMS CONTENTS AND SPECIFICATIONS REMARKS (1) H 30 • Copper‐copper brazing needs copper brazing rod • Copper‐copper brazing needs copper brazing rod, • Chemical composition copper‐steel brazing needs silver brazing rod, Ag: 30%, Cu: 27%, Zn: 23%, Cd: 20% Aluminum‐copper brazing needs aluminum brazing • Brazing Temperature: 710~840°C WELDING (2) Bcup‐2 • Chemical composition • Recommend H34 containing 34% Ag in the Service Cu: About 93% Center. P: 6.8~7.5% The rest: within 0.2% • Brazing Temperature: 735~840°C Brazing flux powder (Borax)
- Page 26 COOLING CIRCUIT MAINTENANCE Page 26 GENERAL OPERATION ON COOLING CIRCUIT GENERAL OPERATION ON COOLING CIRCUIT ITEMS CONTENTS AND SPECIFICATIONS REMARKS (1) When measuring with pirant Vacuum (1 )gauge the • Apply M/C Vacuum Gauge without fail. charging M/C, vacuum (1 )degree is within 130 Pa. • Perform vacuum operation until a proper vacuum (2) If the vacuum degree of the circuit inside is 1300 Pa. degree is built up. below for low pressure and 2600 Pa for high pressure, • If a proper vacuum degree isn't built up, check the VACCUM it says no vacuum leakage state. leakage from the Cycle Pipe line part and Quick (3) Vacuum degree of vacuum pump must be 7 Pa Coupler Connecting part. below after 5 min. (4) Vacuum degree must be same to the value described item (2) above for more than 20 min. (1) The pressure of dry air must be 12~16 bar (2) Keep the pressure at 12~16 bar also when DRY AND AIR substituting dry air for Nitrogen Gas.
- Page 27 COOLING CIRCUIT MAINTENANCE Page 27 MAIN EQUIPMENT AND MATERIAL MAIN EQUIPMENT AND MATERIAL Equipment or Material Figure Equipment or Material Figure Potable Gas Charge Pincer Machine W ldi Welding Torch Electronic Scale Welding Material: Leak detector: Wire Solder( Ag, Cu, Al) R134a 3.4g/Year Flux R600a 2.0g/Year Material: Material: LOKRING LOKRING R134a, R600a, N2, O2, C2H2 LOKRING GLUE Pressure Gauge LOKRING PLIER Vacuum Pump...
- Page 28 COOLING CIRCUIT MAINTENANCE Page 28 PRELIMINARY OPERATIONS BEFORE REPAIRING CYCLE PRELIMINARY OPERATIONS BEFORE REPAIRING CYCLE • Before undertaking any repair operation, it is necessary to perform the following preliminary operations: • Disconnect power cord from the wall socket; Check electric safety of product. •...
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Page 29: Repair Process
COOLING CIRCUIT MAINTENANCE Page 29 REPAIR PROCESS REPAIR PROCESS Before undertaking any operations concerning the refrigerating equipment, it is ABSOLUTELY NECESSARY to empty the refrigeration circuit following the instructions given in the following paragraph . The producer disclaims any responsibility in case of lack of application or partial application of such instructions. - Page 30 COOLING CIRCUIT MAINTENANCE Page 30 Although the process described before is done, it is still possible to have refrigerant inside the circuit if the dryer is clogged. Cut the pipe from condenser 5mm from the dryer using only orbital tube cutters,the refrigerant outgoing and till emission is completed.
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Page 31: One Way Valve
COOLING CIRCUIT MAINTENANCE Page 31 2. Repair of refrigeration circuit After ensuring the refrigerant has been removed completely from the refrigeration circuit, the repair can be carried out in the same way used for a standard circuit. Caution: during welding operations, take care not to damage the electrical wiring: possible short circuit with Caution: during welding operations, take care not to damage the electrical wiring: possible short circuit with ensuing electrical discharges may cause fire. - Page 32 COOLING CIRCUIT MAINTENANCE Page 32 3 Ai 3. Air removal from the circuit (vacuum process) and refrigerant charge it ( The degree of vacuum to be performed in refrigeration circuit which use R600a/R290 is the same used for traditional circuit using HFC (R134a, R404A, etc).
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Page 33: Exploded View
EXPLODED VIEW PRN165DX PRN185DX PRN210DX PRN290DX...
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