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Summary of Contents for Premium PFV90
- Page 1 Service Manual for upright freezer PREMIUM MODEL PFV90...
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Page 2: Table Of Contents
Content Table Main feature and product appearance--------------------------------------------2 Unit Specification-----------------------------------------------------------------------3 Safety during maintenance or service --------------------------------------------3 Electrical Diagram ---------------------------------------------------------------------4 Cooling System Diagram ------------------------------------------------------------5 Part Lists and explanation -----------------------------------------------------------5 Disassembling and replacing of the components ------------------------------------6 Check the breakdowns of the cooling system ----------------------------------7 Table for quick answer for the field problem ------------------------------------9 Note of the cooling system maintenance with R134a refrigerant ---------13 The performance testing requirement after service---------------------------14... -
Page 3: Main Feature And Product Appearance
Foaming Door door gasket aluminum internal material, with painting seal, easy tank with cotton simple sheet metal One basket ginning, PFV90 discharged inside unitary plastic practicall simple ,beautif linear mouth. ul handle cleaned. has inside hidden 。 evaporator condenser, unitary foaming insulation. -
Page 4: Unit Specification
Unit Specification： Model PFV90 Net Capacity（L） Voltage（V） Frequency（Hz） Refrigerant R134a Refrigerant Amount (g) 115g Safety during maintenance or service: In order to be safety during maintenance, must obey the following basic attention: 1. During service: Pay attention to the flame or ignition nearby, particularly after welding using gas... -
Page 5: Electrical Diagram
4．Correct use the components: If the component is damaged and need to be replaced, be sure to replace with the component with same model ， do not use other models or other brand components, and not use the changed component. 5．Correct use the service tools: ... -
Page 6: Cooling System Diagram
Please note, maybe some units are without RUNNING CAPACITOR marked in red color in above diagram, according to the used compressor model. Cooling System Diagram: Capillary Dry Filter Condenser Evaporator Air Suction Pipe Compressor Note: Arrow direction means the flowing direction of the refrigerant. -
Page 7: Part Lists And Explanation
Part Lists and explanation： 1、PFV90 Parts Name Quantity Note Door Hinge Shelf Freezer Cabinet Thermostat cover Compressor base Condensate Water Drain Fixing feet Disassembling and replacing of the components: When replacing the components, must unplug the unit first, in order to be safety. -
Page 8: Check The Breakdowns Of The Cooling System
2．Replace the PTC starter and overload protector of the compressor： Remove the clamp of the connecting terminal cover of the compressor and the terminal cover, toward the vertical direction, remove the broken-down starter or overload protector, install back the new starter or overload protector, then fix back the terminal box cover and its clamp. - Page 9 Problem and check point Cause Solution Compressor On the R epai r t he w el di ng, C ut of f t he l ow pr essur e Leakage Vacuum i ng and Leakage R ef r i ger ant pipe joint cl ean t he pi pe and pi pe and spur t out t he...
- Page 10 Check the frost on the cabinet liner surface, if find like following: 1) No frost, then do the leakage detecting. A). If the leakage point is found, then first cut off the low pressure pipe to discharge the left refrigerant in the system, then clean the pipe, replace with a new dry filter and welding again, again recharge the refrigerant and do the leakage detecting.
- Page 11 Table for quick answer for the field problem： Item Phenomeno Check point and the detail Caused by power Field power supply supply is cut neighbor house off. Power indicator other Main fuse is cut Check that other is not on and appliances off.
- Page 12 Measure insulation resistance meg-ohm meter, The winding is insulation burnt. resistance < 1 MΩ,the unit can’t be used for long time. The voltage is Compressor Power supply too low. can’t start voltage (Maybe lower because than 175V) under voltage. There sound refrigerant flowing...
- Page 13 Check the thickness of frost(>5mm?) The frost is too thick Thermostat higher Set it to lower temperature (lower digit)? temperature There is too more food in cooling Too more food compartment, too crowded, ensure good air circulation inside freezer Incorrect using temperature food Is there high temperature food, like...
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Page 14: Note Of The Cooling System Maintenance With R134A Refrigerant
There (D)、 relative condensed Water The environment is too wet humidity is too water condensate high closure Confirm the insulation resistance is Insulation lower than 1 MΩ by the meg ohm not good meter Check the electrical parts of the unit Insulation are wet not good... -
Page 15: The Performance Testing Requirement After Service
If at wet condition (relative humidity>50%), must take measure to be protected from humidity, and the dry filter must be connected to the system pipe at once after removing from package, so as to produce the sealing system. The requirement of the service equipment： ①No need recycling equipment, except charging machine, if the equipment is special for R134a refrigerant system, must mark it clearly to avoid use each other. -
Page 16: Maintenance Parts List
1、Insulation and safety： Before plugging in, use the DC 500 meg-ohm meter to measure the insulation resistance between the live parts and dead metal enclosure, ensure the result is not lower than 1 meg-ohm. 2、Starting capability： The compressor can start smoothly, and can start or stop normally. If the unit can’t start or stop normally, must find the root cause and delete the cause, then you can plugging it in to let it run.
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