Amana Bottom Mount Refrigerator Replacement Service Compressor, Compressor Testing Procedures

Page 15

HFC134a Service Information

Replacement Service Compressor

HFC134a service compressors will be charged with ester oil and pressurized with dry nitrogen. Before replacement compressor is installed, pull out 1 rubber plug. A pop from pressure release should be heard. If a pop sound is not heard, do not use compressor. Positive pressure in compressor is vital to keep moisture out of ester oil. Do not leave compressor open to atmosphere for more than 10 minutes.

Compressor Testing Procedures

•Refer to “Temperature and Relationship Chart”for operating watts, test points, and temperature relationship test.

•Temperature testing is accomplished by using 3 lead thermocouple temperature tester in specific locations. Test point T-1 is outlet on evaporator coil and T-2 is inlet. Test point T-3 is suction tube temperature midway between where armaflex ends and suction port of compressor (approximately 12 inches from compressor).

•Thermocouple tips should be attached securely to specified locations.

•Do not test during initial pull down. Allow one off cycle or balanced temperature condition to occur before proceeding with testing.

•Refrigerator must operate minimum of 20 minutes after thermocouples are installed.

•Turn control to colder to obtain required on time.

•Wattage reading must be recorded in conjunction with temperature test to confirm proper operation.

•Suction and head pressures are listed on “Temperature and Relationship Chart”Normally these are not required for diagnosis but used for confirmation on systems which have been opened.

Refrigerant Charge

Refrigerant charge in all capillary tube systems is critical and exact amount is required for proper performance. Factory charges are shown on serial plate. Do not use refrigerant other than shown on serial plate.

Leak Testing

Undetected leaks lead to repeated service calls and eventually result in system contaminations, restrictions, and burned out compressors.

After recharging, sealed system must be thoroughly tested for leaks. If a very small leak is difficult to isolate, coat area with soap suds and observe location of bubbles.

WARNING

To avoid death or severe personal injury, never use oxygen, air or acetylene for pressure testing or cleanout of refrigeration system. Use of oxygen, air, or acetylene may result in violent explosion. Oxygen may explode on contact with oil and acetylene will spontaneously explode when under pressure.

Evacuation and Charging

Thermistor

Low Side Gauge

High Side Gauge

Vacuum Gauge

 

D

 

 

 

 

E

 

 

 

 

 

 

Valve

Drier/Process Tube

 

Valve

 

 

 

 

 

 

 

 

 

 

C

Charging Hose

 

 

 

 

 

 

Compressor

Charging Hose

 

B

 

 

 

 

 

 

 

 

 

Compressor

 

 

 

 

 

 

 

 

 

 

 

 

Process

 

A

 

 

 

 

Tube

 

 

 

 

 

.6 cm Copper Tubing

F

Valve

Vacuum Pump

Charging

Cylinder

November 1996

15

RS1200001

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Contents Bottom Mount Refrigerators ServiceGrounding Information Safety and Electrical InformationSafety Symbols, Words, and Labels Electrical RequirementsContents Ice Maker Installation Instructions UncratingSecuring Installation Instructions Door Panel Installation Water ConnectionRefrigerator Door 3/4 Raised Panel Freezer Door 3/4 Raised Panel Door Stop AdjustmentHinge Adjustment Interior SetupSound Information Normal Operating SoundsFreezer and fresh food fan air rushes and whirs System Diagnosis Pressure and Relationship ChartRefrigerant Overcharge Symptoms Refrigerant Shortage SymptomsRestriction Symptoms Air in System Symptoms Low or High Ambient Temperature Installation SymptomsHeat Load Symptoms HFC134a Service Information Health, Safety, and HandlingComparison of CFC12 and HFC134a Properties Drier Replacement Service EquipmentRefrigerant Charge Replacement Service CompressorCompressor Testing Procedures Leak TestingHFC134a Service Information Refrigerant Flow Air Flow Machine Compartment Assembly Component Function and Testing April RS1200001 Rev.1 Switch Continuity Functions Test Dpst Component Function and Testing Electronic Functional Description Keyboard Functions Electronic Testing ModeTemperature Control Operation Accessing Program Mode Power Up ConditionEeprom Update in Control Memory Factory set freezer and refrigerator settingsMode a Functions Freezer or Refrigerator Temperature Mode B FunctionsOperation Exiting Program Mode Electronic Functional Description VAC Adaptive Defrost Circuitry CircuitryFreezer Compartment Refrigeration Cycle Circuitry Fresh Food Compartment Refrigeration Cycle CircuitryDoor Disassembly Procedures Cabinet Components Disassembly Procedures Refrigerator Thermistor Chefs Pantry AssemblyCondensate Drain Pan Shelf Support LaddersMachine Compartment Disassembly Procedures Power Disconnect Switch Showroom SwitchCondenser Typical External Sweat Pattern Problem Possible Cause Troubleshooting GuideTroubleshooting Guide Operation SpecificationsTesting Procedures Ice MakerDisassembly Procedures Water Fill Adjustment Accessing Control BoxEjector Blades or Stripper Thermostat Water ProblemsWiring Harness Temperature ProblemsWater Valve No or Low Ice Production Problem Action Ice Maker Troubleshooting ChartEjector Position Excessive Ice Production Ice Maker Wiring Diagram and Parts Layout B136CKR1 Introduction Recognize this symbol as a safety precautionParts List B136CKR1 and B136CKL1 Custom Handle KitDoor Panels with Hinge on Right Side and Extruded Handle Panel DimensionsRefrigerator, Freezer Door Panel with Custom Handle inches 780 892 Radius 563 780 892 Radius 563 Freezer Drawer ProceduresB136CKR1 and B136CKL1 Custom Handle Kit B136SPK1 ¼ Facia Front Enclosure Kit Panel minimum depth Minimum height Side.186 Location of Panel Brackets on Side PanelsB136SPK1 ¼ Facia Front Enclosure Kit Procedures Bottom cabinet Panel Extrusion B136SPK1 ¼ Facia Front Enclosure Kit B136SPK2 ¾ Side Panel Kit Panel Dimensions Side view 11.281 500 062 Front Bottom Panel Bracket Front Panel Bracket Bottom RS1200001 November Procedure B136SPK2 ¾ Side Panel Kit
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