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Sealed System

 7-27

R-134a Physical Properties:

R-134a - Tetrafluoroethane 
Refrigerant of choice in automotive industry.  Genetron134a replaces CFC12  for air conditioning and refrigeration 
systems in commercial residential and industrial applications.

R-12 - Dichlorodifluoromethane
A versatile and widely used refrigerant.  Common in reciprocating and rotary type equipment.  For all types of appli-
cations, household to industrial.  Also employed in some centrifugal designs and in several special 
applications.

Chemical formula ................................................   CF

3

CH

2

F

Molecular weight .................................................   102.03
Boiling point at 1 atm. ..........................................  -15.1°F 

(-26.2°C)

Critical temperature .............................................   214.0°F (101.1°C)
Critical pressure, psia. .........................................   589.9
Critical density. Ib./cu. tt. .....................................   31.97
Liquid density at 80°F (26.7°C). Ib./cu. ft. ...........   75.0
Heat of vaporization at boiling point, 
Btu/lb.°F ...............................................................   92.4
Specific heat of liquid at 80°F (26.7°C).
Btu/lb.°F ...............................................................   0.341
Specific heat of vapor at constant pressure
(1 atm.) and 80°F (26.7°C), (Btu/lb.°F) ...............   0.204
*Flammable range, %volume in air. ....................   None     
Ozone depletion potential ....................................  0
Greenhouse warming potential (estimate) ..........   0.285

* Flame limits measured using ASTM E681 with electrically activated kitchen match ignition source per ASHRAE      
Standard 34.

Comparative Cycle Performance:

Evaporator temperature = 20°F
Condenser temperature = 110°F
Suction superheat = 30°F
sub-cooling = 10°F
Compressor isentropic efficiency = 65%

 

12  

22 

134a

Evaporator pressure, psi ...............................  21.0  

43.0  

18.5

Condenser pressure, psi ...............................  136.4   226.3   146.4
Compression ratio  ........................................  4.23  

4.17  

4.86

Compressor discharge temperature, °F ........  188.1   227.0   178.3
Coefficient of performance ............................  2.90  

2.79  

2.83

Refrigerant circulation per ton, Ib./min. .........  3.80  

2.78  

3.00

Compressor displacement per ton, cfm. .......  4.51  

2.82  

4.55

Liquid flow per ton, cu. in. /min. ....................  83.2  

67.4  

71.7

Latent heat at evaporator temp., Btu/lb .........  66.5  

90.6  

86.9

Net refrigeration effect. Btu/lb .......................  52.7  

72.0  

66.7

Refrigerant

Summary of Contents for 5995502399

Page 1: ...Publication 5995502399 Revision B September 2009 Technical Service Manual French Door Bottom Freezer Refrigerator Dispenser and Non Dispenser Models ...

Page 2: ......

Page 3: ... Standards Set For Home Appliances 6 GROUNDING The standard color coding for safety ground wires is GREEN or GREEN with YELLOW STRIPES Ground leads are not to be used as current carrying conductors It is EXTREMELY important that the service technician reestablish all safety grounds prior to completion of service Failure to do so will create a hazard 7 Prior to returning the product to service ensu...

Page 4: ...t 3 3 15 Flow Chart 4 3 16 Flow Chart 5 3 17 Flow Chart 6 7 3 18 Flow Chart 8 3 19 Flow Chart 9 10 11 12 3 20 Temperature Resistance Chart For Negative Temperature Coefficient Thermistors 3 21 Section 3 Electronic Control continued Perfect Temp Drawer 3 21 Service Mode For Perfect Temp Drawer 3 22 To Test Lighting System 3 23 To Test the Freezer Compartment Lights 3 23 To Test the Fresh Food Compa...

Page 5: ...ent Teardown continued Fan and Motor Assembly 6 13 Heater 6 13 Thermostat 6 14 LED Lighting 6 14 Damper 6 14 Water Filter and Water Tank Cover 6 15 Water Filter Connection Non Dispenser Models 6 15 Air Filter 6 16 Fresh Food Compartment Thermistor 6 16 Light Shield 6 17 Air Duct Removal Non dispensing Models 6 17 Upper Light Fixture 6 17 Freezer Compartment Light Switch 6 17 Freezer Compartment Th...

Page 6: ...erimeter Hot Tube Repair Kit 7 18 Installing Evacuation and Recharging Equipment 7 19 Evacuating the System 7 20 Charging The System 7 21 Final Leak Test 7 21 Dedicated Equipment 7 21 Vacuum Pump Maintenance 7 22 Service Diagnostic Tips 7 23 HFC 134a Comparison With CFC 12 7 24 Inhalation Toxicity 7 24 Cardiac Sensitization 7 24 Skin and Eye Contact 7 24 Refrigerant Leaks 7 25 Spills or Leaks 7 25...

Page 7: ...s carton plastic bags and any other exterior wrapping material immediately after the refrigerator is unpacked Children should never play with these items Child Entrapment and Suffocation These problems are not limited to the past Whether junked abandoned or temporarily stored even for a few hours unattended refrigerators and freezers are dangerous Please take the precautions listed below Proper Di...

Page 8: ...of Alaska 13 Damages to the finish of appliance or home incurred during transportation or installation including but not limited to floors cabinets walls etc 14 Damages caused by services performed by unauthorized service companies use of parts other than genuine Electrolux parts or parts obtained from persons other than authorized service companies or external causes such as abuse misuse inadequa...

Page 9: ...eing the Highest 50 99 Deluxe Scale with 99 Being the Highest K 2009 K 2009 B Black S Stainless Steel W White B Black S Stainless Steel W White Brand Control Type Type Capacity Product Style Level Year Color Feature Brand Control Type Type Capacity Product Style Level Year Color Feature Counter Depth Standard Depth n o i t a c i f i t n e d I t c u d o r P r o t a r e g i r f e R A s r e z e e r F...

Page 10: ...lect models LED Light select models Tilt Can Bin Special Items Rack inside PTD select models LED Light select models Freezer LED Light select models Flipper Guide Flipper Mullion Wire Tilt Out Shelf inside freezer drawer Freezer Mounting Screws Understanding Features and Terms Electrolux refrigerators are designed for optimal convenience and storage flexibility The illustration below is provided t...

Page 11: ...to 12 psi 34 to 83 kPa N A Low Side Pressure cut out 2 to 2 psi 14 to 14 kPa 2 to 2 psi 14 to 14 kPa High Side Pressure last 1 3 cycle 85 to 95 psi 586 to 655 kPa 120 to 135 psi 827 to 931 kPa Wattage last 1 3 cycle 45 to 55 60 to 70 Amps running 6 to 1 1 7 to 9 Base Voltage 115 vac 127 vac max DEFROST Cabinet Size Thermostat Heater Cut in Cut out Watts Ohms 23 SD 28 SD 23 CD 25 F 4 C 47 F 8 C 500...

Page 12: ... 40 to 55 60 to 70 Amps running 5 to 1 1 7 to 9 Base Voltage 115 vac 127 vac max DEFROST SPECIFICATIONS Cabinet Size Thermostat Heater Cut in Cut out Watts Ohms 23 SD 28 SD 23 CD 25 F 4 C 47 F 8 C 500 26 Electronic Timer ADC Defrost 24 minutes every 6 96 hours of compressor run time CONDENSER FAN MOTOR Watts RPM Amps 3 1 Energy Star some models 1100 CW Opposite Shaft 0 03 Running ICE MAKER SPECIFI...

Page 13: ...g food For best use of refrigerator drawers and freezer baskets the refrigerator should be in a position where both can be fully opened DO NOT install the refrigerator where the temperature will drop below 55 F 13 C or rise above 110 F 43 C The compressor will not be able to maintain proper temperatures inside the refrigerator DO NOT block the toe grille on the lower front of your refrigerator Suf...

Page 14: ...er cord Always grip the plug firmly and pull straight out from the receptacle to prevent damaging the power cord To avoid electrical shock unplug the refrigerator before cleaning and before replacing a light bulb or LED light Performance may be affected if the voltage varies by 10 or more Operating the refrigerator with insufficient power can damage the compressor Such damage is not covered under ...

Page 15: ... turn with a wrench DO NOT over tighten See Figure 2 3 5 With steel clamp and screw secure water supply line copper tubing only to rear panel of refrigerator as shown 6 Coil the excess copper tubing about 2 turns behind your refrigerator as shown Arrange coiled tubing to avoid vibration or wear against other surfaces 7 Open water supply shut off valve and tighten any connections that leak 8 Prime ...

Page 16: ...ng in loop to allow moving refrigerator out for cleaning Ferrule Sleeve Copper water line Water Valve Valve Inlet Water Valve Bracket Steel Clamp Plastic Water Tubing to Ice Maker Fill Tube Brass Compression Nut Figure 2 1 Water Connection Dispenser Model Figure 2 2 Water Connection Non Dispenser Model Copper Tubing Connection Wate 6 ft Stainless Steel water line from household water supply r Valv...

Page 17: ...e and gently pull forward See Figure 2 4 2 Lift the right side of the toe grille and gently pull forward to remove toe grille See Figure 2 4 3 Close the drawer and use a flat blade screwdriver or 3 8 inch socket wrench to raise or lower the front rollers See Figure 2 5 4 Ensure both doors are bind free with their seals touching the cabinet on all four sides 5 After unit is leveled lower anti tip l...

Page 18: ...Lower Door Door Hinge Washer Raise Figure 2 11 Figure 2 12 Figure 2 8 Rotate Door Stop Re tighten Set Screw Figure 2 9 Remove Set Screw Open Door 90 Degrees Bottom of Door Figure 2 10 To Level The Doors Using The Adjustable Lower Hinge 1 Open doors to 90 degrees 2 Extract set screw from lower hinge See Figure 2 10 3 Lift the door while adjusting washer To raise door rotate washer clockwise when vi...

Page 19: ... the entrance To prepare for removing the doors 1 Make sure the electrical power cord is unplugged from the wall outlet 2 Open the freezer drawer and remove the toe grille 3 Remove any food from the door shelves and close the doors To remove the top hinge covers 1 Remove the two 2 screws from each cover over the top door hinges See Figure 2 15 and 2 16 2 Lift inside edge of hinge cover and tilt ba...

Page 20: ...nd pull the tube back out to the front of the unit The connector releases when you press inward on the outer sleeve while pushing the tube toward the connector then while continuing to hold in the sleeve pull the tube away See Figure 2 19 4 Unscrew the three 3 lower hinge screws and hinge if necessary To reinstall the right door reverse the above steps Once both doors are in place ensure they are ...

Page 21: ...wo 2 per side tighten down and close drawer See Figure 2 22 3 Check gasket seal around top bottom and sides of freezer drawer 4 If gasket is not sealed open drawer and slightly loosen four 4 drawer screws two 2 on each side to allow drawer to rotate 5 Close drawer and recheck the seal on the gasket A Open the drawer grabbing by the sides in the center B Be careful not to rotate the drawer See Figu...

Page 22: ... 3 While holding handle firmly against door fasten upper and lower Allen set screws C with supplied Allen wrench See Figure 2 24 4 Repeat steps 2 and 3 to install opposite handle Ensure the holes for the set screws are facing towards the first door 5 Position freezer handle end caps over left and right pre installed shoulder bolts that are fastened to the door ensuring the holes for the set screws...

Page 23: ... Wave Touch and IQ Touch See Figure 3 1 and 3 2 There are many similarities between the Wave Touch and IQ Touch interfaces with the main difference being the location of certain icons and the sleep state for the Wave Touch interface The function of the icon pressed will be the same for each user interface unless otherwise noted The User Interface See Figure 3 3 for non dispensing models is an IQ T...

Page 24: ... the upper left hand corner This will illuminate all the user options available for the unit vacation mode Conserves energy by increasing the time between automatic defrost This feature is automatically activated during long periods between door openings Vacation mode is manually activated when the red indicator is lit water filter Touch to display filter condition status Press and hold for three ...

Page 25: ... by opening the refrigerator doors This feature is automatically activated during long periods between door openings Vacation mode is manually activated when the red indicator is lit water filter Touch to display filter condition status Press and hold for three 3 seconds to reset after filter change air filter Touch to display filter status Press and hold for three 3 seconds to reset after filter ...

Page 26: ...The sounds are muted when the red indicator is illuminated default settings Resets all refrigerator settings such as temp temp display and ring tones to their factory default settings Humidity Sensor The humidity sensor is located on the user interface board not in the top trim as in the models with the dispenser in the front of the left food door The humidity sensor is used to control the heater ...

Page 27: ...kly Sabbath and religious holidays within the Orthodox Jewish community Sabbath Mode is turned ON and OFF by pressing and holding both the outermost and indicators for five 5 seconds for both the Wave Touch and IQ Touch controls The displays show Sb while in Sabbath mode See Figure 3 9 In the Sabbath Mode the High Temp alarm is active for health reasons If a high temperature alarm is activated dur...

Page 28: ...w room mode the displays will work as normal but the heater will not turn on Deactivation Showroom Mode automatically deactivates at a power on reset POR NOTE A power on reset POR means to unplug the product for one minute and then plug it back in again Hold Hold Figure 3 10 Showroom Mode Hold Hold Figure 3 11 Manual Defrost Mode Manual Defrost Mode To enter the manual defrost mode press and hold ...

Page 29: ...ezer is not considered to be in a high temperature state when it cools to 25 F or below and the fresh food is not in a high temperature state when it cools to 54 F or below The typical behavior of a system is that the freezer will cool from ambient to 25 F in approximately 1 hour The fresh food compartment will cool from ambient to 54 F typically around 90 minutes from power on The High Temp indic...

Page 30: ... is pressed for ice or water Verify that the LED s function properly prior to entering service mode below 4 Definitions a ERF2500 Main board located under the refrigerator behind the toe grill b IM Board Ice Maker Board located in back of unit on upper left hand side b UI User interface above the dispenser pocket c Ice and Water module Single paddle sub assembly located behind the UI d LED Board L...

Page 31: ...test number will appear in the Fresh Food display When the ON OFF Fresh Food pad is pressed the part being tested will appear in the Freezer display If a test fails refer to the Troubleshooting failed tests section on the following page Test 28 Dispenser paddle test See Flow Chart 6 Push the ON OFF pad and press paddle with freezer door closed to test Display will show ON when pressed OFF when rel...

Page 32: ...splays OP when flapper is opened manually Test 36a Ice door test Flapper Solenoid Micro switch See Flow Chart 8 Push ON OFF pad and dispenser and the solenoid will activate The Freezer display will show OP Test 23 Fresh food door Freezer Display will show OP open when doors are open and CL when door is closed Test 24 Freezer door See Flow Chart 5 Freezer Display will show OP open when door is open...

Page 33: ...f less check service cord and supply voltage NOTE It is recommended for best results that the meter used for this test is a TRUE RMS MULTIMETER A voltage test for both the RMS Meter and a standard Multimeter will be provided 2 Remove the lower power board from under the front of the product See page 6 19 for location of the power board You will use connection J2 terminal 3 RED BLK and terminal 4 B...

Page 34: ...gh the bracket welded to the compressor See Figure 3 16 Pull the inverter away from compressor Use a small flat bladed screwdriver to remove the plug from the compressor terminals Using an ohmmeter check the resistance between the compressor terminals See testing the compressor If the compressor checks good replace the inverter Testing the Compressor The compressor has a 3 phase 4 pole brushless D...

Page 35: ...int to point continuity intact On white comm wire from main board to UI Is connection on main board intact J9A Replace repair harness and retest Yes Yes No No Yes No Yes Yes Replace ERF 2500 Is problem fixed Replace UI and retest Replace ERF 2500 Is problem fixed Replace UI and retest No Is door hinge connection intact Is point to point continuity intact On comm Wires Red white black from main boa...

Page 36: ...ness and retest Yes Replace UI and retest No No No No Are outputs correct on the harness at water valve connector 120V Is 120V present at main board J3 pin 4 tan wire connector when paddle depressed and water selected Replace ERF 2500 Is problem fixed Yes Flow Chart 2 ...

Page 37: ...black wire connector when paddle depressed and ice selected Replace ERF2500 Is problem fixed Yes Repair replace auger harness and retest Yes Is auger motor switch passing 120V when switch is closed Is 120V present at freezer liner connection No Replace switch and retest Repair replace harness and retest Yes No Yes Is freezer machine compartment inline connected No Connect and retest Flow Chart 3 ...

Page 38: ...20V Is 120V present at main board J3 pin 3 blue white wire connector when paddle depressed and ice selected Replace ERF 2500 Is problem fixed Yes Repair replace solenoid harness and retest Is 120V present at freezer liner connection pin 3 Repair replace harness and retest Yes No No Yes Is freezer machine compartment inline connected No Connect and retest Flow Chart 4 ...

Page 39: ...itch Repair replace freezer harness and retest Yes No Yes Is freezer machine compartment inline connection intact No Connect and retest Is yellow red wire continuity intact from inline to switch Repair replace freezer harness and retest No Yes Is freezer machine compartment inline connection intact No Connect and retest Is yellow red wire continuity intact from inline to MB J1 pin 7 Repair replace...

Page 40: ...oswitch actuated by paddle mechanism during normal user operation Yes Repair replace microswitch No Flapper Repair replace connection and retest Repair replace harness and retest Yes Replace UI and retest No No Are paddle microswitch connections at switch intact Is 6 wire connection to UI driver board intact Yes Is microswitch properly mounted Yes Is microswitch electrically closed when pressed an...

Page 41: ...t 54C Check Bail Arm Test 51C Enter IM Service Mode Ask customer if there have been any unusual noises clicking Switch Remove motor drop mold to bottom center re activate heater if necessary to drop mold Check Fill Limit mold to bottom center re activate heater if necessary to drop mold Remove motor drop mold to bottom center re activate heater if necessary to drop mold Flow Chart 8 ...

Page 42: ...00 intact Yes Is continuity from J3 connector to each device prestent Repair replace harness and retest Yes No No Replace UI and retest Replace ERF2500 Is problem corrected Flow Chart 10 Repair replace harness and retest Go to individual failure sections No Is 6 wire connection to UI driver board intact Yes Repair replace harness and retest Go to individual failure sections No Is freezer machine c...

Page 43: ...lsius C 3 Press either the up or down scroll buttons to illuminate the desired item 4 Once an option is selected the drawer will adjust and maintain the temperature for the setting selected 5 When turned off the Perfect Temp Drawer functions as a standard meat pan The Perfect Temp Drawer is best used for packaged food products Leafy vegetables and unpackaged fruits are best kept in one of the cris...

Page 44: ...r d0 for damper closed Damper movement nay take 30 seconds To Test Damper 1 Remove drawer 2 Start damper test 3 Observe damper moving open and closed through the cold air discharge See Figure 3 22 4 Exit damper test Report NTC Temperature Test Actuate Display shows b1 for chamber sensor test The UI display will show F until the main board responds with associated sensor temperature reading See pag...

Page 45: ...ch are lighting zone 4 A 2 in the Fresh Food compartment temperature display means there is no signal going from the lower control board to the lighting control Remove both the lighting control board and the lower control board Check for bad connections on the jumper harness running between the two boards If the connections are good replace the lower control board A 3 in the Fresh Food temperature...

Page 46: ...ing a signal to the lighting control board telling the lighting control to turn on the food compartment lights in lighting zones 1 and 2 A 2 in the Fresh Food compartment temperature display means there is no signal going from the lower control board to the lighting control Remove both the lighting control board and the lower control board Check for bad connections on the jumper harness running be...

Page 47: ...ch A 3 in the Fresh Food compartment temperature display means the lower control board is not receiving a signal from the food compartment light switch or switches Check the wiring connections between the light switches and the lower control board If one of the switches are bad replace it If there is no signal from the lower control board to the switch replace the lower control board The food comp...

Page 48: ...p Lights Refrigerator Control Board J1 1 Yellow Grey to Switches Line Voltage Control Board J1 8 is Neutral Light Blue Switches to Control Board J2 2 Yellow Black Line Voltage Control Board J1 8 is Neutral Light Blue LED Control Board to LED board J1 3 Yellow Black Line Voltage LED Board J1 1 is Neutral Light Blue LED Board to Zone 1 4 Lights on LH side J2 7 White Blue J2 8 White Brown Voltage 19 ...

Page 49: ... mold The ice mold has a 150 Watt heater attached See Figure 4 1 An NTC Negative Temperature Coefficient thermistor is attached to the ice mold to start the harvest cycle when the ice mold has reached 28 F The heater will heat the mold until the thermistor indicates that the mold temp has reached 34 F At this point the controller will shut off the heater pull the mold away from the cubes and move ...

Page 50: ...ction of the ice maker contains the icemaker evaporator a 35 Watt defrost heater See Figure 4 1 a defrost bi metal limit thermostat with a contact set that will open at 48 F and close at 25 F The defrost heater will turn on at the same time as the defrost heater for the main evaporator located in the freezer There is a circulating fan motor to supply air movement to the ice maker compartment The f...

Page 51: ...mold back under the evaporator fingers The motor will shut off and the EEV will open allowing for refrigerant flow through the fingers to start the water freezing process over again If the fill switch on the right side does not make connection when the ice mold moves from the freeze position on the left to the fill position on the right the mold heater will come back on for five minutes to melt an...

Page 52: ...imit or stop the flow of refrigerant to the ice maker This program was added to the main control system to allow the freezer evaporator to get as much refrigerant as is needed to maintain product temperature If refrigerator is in a defrost cycle the main control board will stop the flow of refrigerant to the ice maker for 20 minutes after the product comes out of defrost to allow the freezer evapo...

Page 53: ...held for 5 seconds the value display in the Freezer display will flash 3 times and then the display will be updated to show 1 and the FRM Timer will be reset to 0 and the FRM Exceeded Flag shall set to False Test 49C EEV Manual On Off See Flow Chart Test 49C To start this interactive test touch the ON OFF key to fully open the valve Fresh Food display starts flashing the test ID until EEV is fully...

Page 54: ...h Food display After ice mold arrival to Freeze position or if the mold was already in the Freeze position the Test ID stops flashing and the ice maker will turn on the water solenoid valve and the city water solenoid valve for a duration of four 4 seconds Test 55C Water Valve Test continued Water can be dispensed into a 4 oz cup placed or held under the ice maker water spout typically 80 ml Only ...

Page 55: ...ly open the EEV and wait 120 seconds for the TH3 temperature to drop off a minimum 2 F After the delay the test result is displayed on the Freezer display as P for Pass or F for Fail Test 63C Harvest Motor System Test See Flow Chart Test 63C Interactive This test has the requirement that the ice bucket be removed from the ice maker chamber prior to entering this test Also if the ice mold is in the...

Page 56: ...Ice Maker Fresh Food Compartment 4 8 Flow Chart No Ice 1 ...

Page 57: ...Ice Maker Fresh Food Compartment 4 9 Flow Chart No Ice 2 ...

Page 58: ...Ice Maker Fresh Food Compartment 4 10 Flow Chart No Ice 3 ...

Page 59: ...Ice Maker Fresh Food Compartment 4 11 Flow Chart No Ice 4 ...

Page 60: ...Ice Maker Fresh Food Compartment 4 12 Flow Chart No Ice 5 ...

Page 61: ...Ice Maker Fresh Food Compartment 4 13 Flow Chart No Ice 6 ...

Page 62: ...Ice Maker Fresh Food Compartment 4 14 Flow Chart Test 48C ...

Page 63: ...Ice Maker Fresh Food Compartment 4 15 Flow Chart Test 49C ...

Page 64: ...Ice Maker Fresh Food Compartment 4 16 Flow Chart Test 50C ...

Page 65: ...Ice Maker Fresh Food Compartment 4 17 Flow Chart 51C ...

Page 66: ...Ice Maker Fresh Food Compartment 4 18 Flow Chart 52C ...

Page 67: ...Ice Maker Fresh Food Compartment 4 19 Flow Chart 54C ...

Page 68: ...Ice Maker Fresh Food Compartment 4 20 Flow Chart 55C ...

Page 69: ...Ice Maker Fresh Food Compartment 4 21 Flow Chart 56C ...

Page 70: ...Ice Maker Fresh Food Compartment 4 22 Flow Chart 57C ...

Page 71: ...Ice Maker Fresh Food Compartment 4 23 Flow Chart 58C ...

Page 72: ...Ice Maker Fresh Food Compartment 4 24 Flow Chart 59C ...

Page 73: ...Ice Maker Fresh Food Compartment 4 25 Flow Chart 60C ...

Page 74: ...Ice Maker Fresh Food Compartment 4 26 Flow Chart 61C ...

Page 75: ...Ice Maker Fresh Food Compartment 4 27 Flow Chart 62C ...

Page 76: ...Ice Maker Fresh Food Compartment 4 28 Flow Chart 63C ...

Page 77: ...Ice Maker Fresh Food Compartment 4 29 Flow Chart ICE t3 Error ...

Page 78: ...Ice Maker Fresh Food Compartment 4 30 Ice Maker Body and Switches For Component Teardown Procedures See Section 6 ...

Page 79: ...Ice Maker Fresh Food Compartment 4 31 Ice Maker Frame and Auger Motor Components For Component Teardown Procedures See Section 6 ...

Page 80: ...Ice Maker Fresh Food Compartment 4 32 Ice Maker Evaporator Components For Component Teardown Procedures See Section 6 ...

Page 81: ...grease on the top edge of the mold prevents siphoning of water by capillary action Mold Heater A mold heater rated at 115 volts 81 ohms 10 or 230 volts 340 ohms 10 and covered with an aluminum sheath is embedded in the grooved section on the underside of the mold When mold heater is energized the ice contact surface within the mold is heated enough to allow harvest of ice pieces The mold heater is...

Page 82: ...djustable component in the ice maker 3 Shut off Switch stops ice maker operation when the storage container is full of Ice The switch is opened after the sensing arm is raised to its most upright position The switch is mounted to the top right wall of the ice maker support Thermal Cut Out TCO The thermal cut out is a one time limit fuse used as a safety device It is located under the mounting plat...

Page 83: ...f the ice maker water refilling and controlled ice storage require proper functioning and timing of all components Consider the following Has refrigerator been properly installed and connected to sources of electrical power and water Has freezer compartment evaporator pulled down to temperature Have several ice making cycles been completed and is the Ice Maker in the Freeze Cycle Do the ejector bl...

Page 84: ...Replace thermostat if continuity readings are open 3 With ejector blades at 4 o clock position check mold heater and ice maker thermostat for continuity Replace heater if continuity readings are open If heater shows continuity replace thermostat 4 Check motor operation with a test cord Replace motor if it fails to start Complaint Ice Maker Continues to Eject When Container is Full 1 Check for loos...

Page 85: ...r Compartment 4 37 YELLOW YELLOW YELLOW Freezer Compartment Ice Maker Electrical System The Ice Maker mounted in the freezer compartment is NOT a Mid South Ice Maker Use the schematic below for servicing the Ice Maker ...

Page 86: ...closed C to NO Hold Switch closed C to NC Water Fill Switch open 2 Maker connected to electricity Mold temperature below 15 F Thermostat closes Motor starting Mold heater starting to heat Control Arm in the down position Shut off Switch closed C to NO Hold Switch closed C to NC Water Fill Switch open 3 Maker connected to electricity Mold temperature above 15 F Thermostat closes Motor starting to r...

Page 87: ... F Thermostat closed Motor stalls as finger hits ice cubes Power on heater Control Arm swinging up Shut off Switch closed C to NO Hold Switch closed C to NC Water Fill Switch open Control Arm swinging down 6 Ice Maker connected to electricity Mold temperature below 15 F Thermostat closed Motor starts to rotate as ice breaks loose Power on heater Control Arm is down Shut off Switch closed C to NO H...

Page 88: ...cted to electricity Mold temperature below 15 F Thermostat closed Power on heater Control Arm swinging up Shut off Switch closed C to NO Hold Switch closed C to NC Water Fill Switch open Control Arm swinging up 9 Ice Maker connected to electricity Mold temperature below 15 F Thermostat closed Motor is rotating Power on heater Control Arm swinging up Shut off Switch closed C to NC Hold Switch close...

Page 89: ... electricity Mold temperature above 15 F Thermostat open Motor is rotating Mold heater off Control Arm swinging down Shut off Switch closed C to NO Hold Switch closed C to NO Water Fill Switch open 12 Ice Maker connected to electricity Mold temperature above 15 F Thermostat open Motor is rotating Mold heater is in series with water valve Control Arm swinging down Shut off Switch closed C to NO Hol...

Page 90: ...r off Control Arm swinging down Shut off Switch closed C to NC Hold Switch closed C to NO Water Fill Switch open 14 Ice Maker connected to electricity Mold temperature above 15 F Motor not rotating Mold heater off Control Arm in down position Shut off Switch closed C to NC Hold Switch closed C to NO Water Fill Switch open Figure 4 23 Figure 4 24 ...

Page 91: ...Ice Maker Freezer Compartment 4 43 Operating Cycle Illustrations Mechanical The following diagrams illustrate the mechanical operation of an ice maker Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 ...

Page 92: ...Ice Maker Freezer Compartment 4 44 Step 7 Step 8 Step 9 Step 10 ...

Page 93: ...Ice Maker Freezer Compartment 4 45 Ice Maker Exploded View For Component Teardown Procedures See Section 6 ...

Page 94: ...Ice Maker Freezer Compartment 4 46 Notes ...

Page 95: ...on the dual coil valve every time the single coil valve is energized See Figure 5 2 If a diode is shorted when the single coil valve opens current leakage through the shorted diode will cause both coils on the secondary valve to open causing water to go into the ice maker and out the door at the same time If the the diode fails in the open position the coil on your secondary valve will open but th...

Page 96: ...water valve single coil valve goes behind the housing that makes up the left support for the Perfect Temp Drawer This housing is located on the bottom left side of the food compartment liner and contains the water filter See Figure 5 3 The water from the water filter goes to the water tank then to the secondary water valve two coil valve The two coil valve dispenses water to the ice maker and to t...

Page 97: ...Water System 5 3 Standard Depth Water Schematic Counter Depth Water Schematic ...

Page 98: ...ng The diode should check 10 times higher in one direction than the other Voltage Check You can also use a volt meter to check the circuit Connect a volt meter to the valve coil of the primary valve and connect a second volt meter to the green coil of the secondary valve if the problem is with the ice maker or the con nect the second volt meter to the yellow coil of the secondary valve if the prob...

Page 99: ...ls can stop the valves from operating One common problem is that the connector on the water valve coil is pushed on with the valve terminal over the top of the terminal in the plug Valve Coil The production valves use a 15 watt coil to open the primary water valve The Ice Maker coil green coil of the secondary water valve is a 35 watt coil This should open the valve down to about 90V at the green ...

Page 100: ... or bad Fill Switch Voltage Readings At Coil Of Primary Valve When Ice Maker is Filling Voltage at Outlet Voltage at Coil Condition 120VAC 56 10 VAC Normal 100VAC 48 10 VAC Normal at 105VAC Will require use of 50 Watt coil 100 120VAC 10 43 VAC Bad connection Fill Switch or Heater in Ice Maker 100 120VAC 0 VAC Open Diode If current is normal at secondary coil The Service Technician must remember th...

Page 101: ...TO A FRENCH DOOR BOTTOM FREEZER REFRIGERATOR MUST BE DISCONNECTED WHENEVER ACCESSING AND OR REMOVING COMPONENTS POWERED BY ELECTRICITY OR COMPONENTS NEAR OTHER ELECTRICAL COMPONENTS AFTER SERVICE IS COMPLETED BE SURE ALL SAFETY GROUNDING CIRCUITS ARE COMPLETE ALL ELECTRICAL CONNECTIONS ARE SECURE AND ALL ACCESS PANELS ARE IN PLACE IF UNIT WAS USED PRIOR TO SERVICE THE COMPRESSOR ASSEMBLY WILL BE H...

Page 102: ... 3 Remove water line from dispenser 4 Extract the two screws securing the dispenser in the housing See Figure 6 3 5 Pull dispenser away from housing Disconnect the molex plug from the rear of dispenser 6 To service the control board disconnect the electrical lead from the control board 7 Push back the retaining clips while gently pushing the control board out from the housing See Figure 6 4 8 Remo...

Page 103: ...ex plugs from the dispenser housing to the control assembly This will allow for complete removal of the control 4 Remove water line from dispenser 5 Extract the two screws securing the dispenser in the housing See Figure 6 6 6 Pull dispenser away from housing Disconnect the molex plug from the rear of dispenser 7 To service the control board disconnect the electrical lead from the control board 8 ...

Page 104: ...ainer This will allow removal of the control board from the touch panel To reassemble 1 Place the board over the touch control housing Press the board past the retainers one at a time starting at the top 2 Reconnect the ribbon connector 3 Reconnect the door harness to the board 4 Place bottom of board into the housing in the door NOTE Use caution not to damage the ribbon connector 5 Push the contr...

Page 105: ... position of an adjustable door bin 1 Before adjusting a bin remove all food 2 Grip the bin firmly with both hands and lift it upward See Figure 6 11 3 Remove the bin 4 Place the bin just above desired position 5 Lower the bin onto supports until locked in place Dairy Compartment Removal The dairy compartment is designed to be warmer than the open area and includes a lift up cover that may be lock...

Page 106: ...the mullion straight up off the 3 pivot pins 5 Disconnect the electrical connector located behind the center pivot bracket and remove the mullion 6 Resemble in reverse order Top Door Hinge Cover Removal To prepare for removing the doors 1 Make sure the electrical power cord is unplugged from the wall outlet 2 Remove any food from the door shelves and close the doors To remove the top hinge covers ...

Page 107: ...press inward on the outer sleeve while pushing the tube toward the connector then while continuing to hold in the sleeve pull the tube away See Figure 6 19 and Figure 6 20 5 Unscrew the three 3 lower hinge screws and hinge if necessary See Figure 6 21 To reinstall the doors reverse the above steps Once both doors are in place ensure they are aligned with each other and level Replace the top hinge ...

Page 108: ... the retainer clips making sure the front of the basket rests in the retainer clips on the stabilizer bar If the upper basket is installed with the tabs towards the front of the unit the upper basket will kick out when the drawer is opened See Figure 6 23 and 6 24 If the upper basket is installed with the tabs towards the rear of the unit backwards the upper basket will remain inside the freezer w...

Page 109: ...d by pulling the gasket from the channel molded in the unit door or drawer frame See Figure 6 27 Toe Grille Removal To remove the toe grille press the locking tabs on the bottom of toe grille then lift straight up until the three clips are free of the spacer screws To reassemble 1 Three clips slide over spacer screws 2 Tabs lock into place in slots on outside edge of the anti tip bracket See Figur...

Page 110: ...move the switch from the eyebrow trim by pressing in on the retaining latch and push through the eyebrow trim Reinstall in reverse order Humidity Sensor Removal The humidity sensor is used to control the heater in the food door mullion strip and is located in the top trim across the top front of them cabinet between the hinge covers The sensor will turn on the heater when the humidity in the room ...

Page 111: ...Pull the drawer out until it stops 2 Lift the front slightly and remove the drawer See Figure 6 34 Perfect Temp Drawer Removal The power to operate the drawer as well as a wire from the food compartment light switch connects to the control unit by a wire harness coming out through the liner This harness will connect to the 4 pin connector in the bottom right back section of the control unit The wi...

Page 112: ...isconnect 2 LED 2 pin connectors See Figure 6 38 8 Remove replace harness To Service the Perfect Temp Drawer Control Unit 1 Disconnect power from unit 2 Remove the cover See To service the user Interface board 3 Extract the two screws from the drawer rail See Figure 6 36 4 Extract 2 screws from the top right control housing 5 Disconnect the 115VAC power supply and LED connection at the bottom righ...

Page 113: ...e label is facing the vanes in the air discharge of the control housing The label is on the discharge side of the fan assembly Carefully replace rubber damping material surrounding fan The capacitor will come as part of the heater The heater has a lining notch in the front of the metal bracket it is mounted on This notch must line up with the tab in the housing to allow the heater to fit all the w...

Page 114: ... the damper 1 Disconnect power from unit 2 Remove the Crisper and Perfect Temp Drawer 3 Remove the screw in the cover and lift the cover off 4 With the cover removed slide the damper straight out of the air channel 5 With the damper out release the tab in the center of the electrical connector and unplug the wire harness from the damper The damper can now be removed from the unit See Figure 6 44 T...

Page 115: ...Press and hold the Filter Status button on the control panel for three 3 seconds When the display changes from Replace to Good the status has been reset To access the water tank and water filter components loosen the three screws securing the assembly to the liner sidewall Lift the assembly upwards until the screw heads clear the slots and pull assembly away from the sidewall See Figure 6 47 Water...

Page 116: ...r six 6 months To replace the PureAdvantageTM air filter 1 Open the air filter door See Figure 6 50 2 Remove the old filter and discard it 3 Unpack the new filter and slide it into the housing 4 To close the air filter door push the top and bottom to lock the door closed 5 Press and hold the Air Filter Reset button on the control panel for three 3 seconds When the display changes from Replace to G...

Page 117: ... from the cabinet See Figure 6 54 Freezer Compartment Light Switch Removal The freezer compartment light switch is located in the left side center of the freezer liner toward the back of the freezer To remove the freezer compartment light switch 1 Disconnect power from unit 2 Remove the upper two freezer baskets if equipped 3 Using a putty knife inserted between the liner and switch push down and ...

Page 118: ...Rail Removal To release the freezer basket drawers from the rails push the release lever as shown and pull drawers from rails See Figure 6 57 On some models you will need to remove the front trim for the top two baskets Remove one screw from each side of the basket rail going into the trim and pull the trim straight out On the lower basket rail assembly there is a linkage bar between the two gears...

Page 119: ...out from the front of the refrigerator 5 Disconnect the power board and pull the control box out from the front of the refrigerator The lighting is provided by 3 LED lights for the freezer 1 in the freezer top center at back 1 in the bottom of each food door shining in the open freezer basket The food compartment will have 9 lights 2 in the Perfect Temp Drawer if equipped 2 on the top 2 on the lef...

Page 120: ...from unit See Figure 6 61 Ice Maker and Mounting Plate Non dispensing Models To remove the ice maker 1 Disconnect refrigerator from electrical supply 2 Remove the freezer door 3 Remove freezer section baskets 4 Remove icemaker air duct 5 Disconnect icemaker from wire harness connection 6 Extract the one screw at the front of mounting plate See Figure 6 62 7 The icemaker will then slide forward to ...

Page 121: ...ket rail assembly there is a linkage bar between the two gears Pull rails out and expand them enough to remove bar 4 Remove 3 screws from fan motor cover and lift out of evaporator cover See Figure 6 65 5 Remove evaporator cover 6 Remove 2 screws from fan motor mounting bracket Lift the fan assembly up and out away from the liner 7 Disconnect wire harness connector Evaporator fan motor assembly ca...

Page 122: ...5 Remove screws from evaporator cover and remove from freezer 6 Disconnect two leads to defrost heater See Figure 6 68 7 Unclip ground wire hooked to drain trough 8 Remove screw holding evaporator bracket through drain trough to cabinet 9 Remove rivet holding bracket to trough and set bracket aside for reuse 10 Remove screw holding drain trough to cabinet 11 Lift up and pull evaporator and drain t...

Page 123: ...he ice maker you will need to remove the Ice bucket by pulling the ice bucket out of the ice maker assembly Ice Bin Housing Removal To remove the ice bin housing from the ice maker 1 Remove the fresh food compartment shelves to aid in access the icemaker components 2 Remove three 1 4 mounting bolts that pass through the housing and fasten into the frame of the icemaker assembly See Figure 6 71 3 S...

Page 124: ...e with a new one See Figure 6 72 Ice Maker Drive Motor Removal To replace the drive motor 1 Unplug unit from wall outlet Remove the ice bin housing 2 Disconnect the wire harness from drive motor 2 Extract the two screws securing the drive motor to the gear box See Figure 6 73 3 Slide the motor straight back off the shaft Install the new motor using caution to line the gear on the shaft up with the...

Page 125: ...e access to the screws 5 Extract the back 2 screws just above the back of the ice mold See Figure 6 76 6 Remove the ice mold assembly 7 Extract the front pivot pin This will allow the front of the ice mold to drop away from the front pivot plate See Figure 6 77 8 Pull the back of the ice mold off the guide and carefully feed the wires through the guide 9 To replace the defrost limit switch disconn...

Page 126: ...he suction line coming from the fin and tube section of the ice maker evaporator The thermistor is mounter inside foam insulating tape and senses temperature of the suction line and relays this information back to the control board for EEV operation See Figure 6 80 To replace the suction line thermistor T3 disconnect power from the unit and remove the side plate Remove the thermistor from the suct...

Page 127: ...r motor shaft 6 Extract the three motor mounting screws labeled A in Figure 6 81 then remove from mounting plate 7 Extract the four screws labeled B in Figure 6 81 from the solenoid assembly then remove from mounting plate 8 Replace assembly in reverse order To Test Auger Motor 1 Read ohmic value of motor windings using Multimeter on resistance scale Put test leads on terminals where purple and wh...

Page 128: ...f the tab and disconnect the wire harness Reassemble in reverse order Ice Maker Frame Assembly Removal To replace the ice maker frame assembly remove all previously listed ice maker components that are mounted to the frame assembly 1 Unplug unit from wall outlet Remove the ice bin housing and side plate 2 Remove the ice mold assembly and ice auger motor 3 Remove the fan and thermostat housing 4 Ex...

Page 129: ...t the four screws securing crusher housing to the steel mounting plate See Figure 6 87 6 Slide crusher housing off of the steel plate 7 The auger nut is a left hand thread round plastic nut Remove to gain access to the crusher blades Each blade is separated by a spacer A crusher hammer is mounted between crusher blades number two and four A pin is pressed into the crusher hammer securing it to the...

Page 130: ...o room temperature before removing the front cover This prevents moisture from condensing on the metal components To remove the front cover 1 Disconnect refrigerator from electrical supply 2 Remove the icemaker from freezer compartment 3 Ensure that ice maker is at room temperature before removing front cover 4 Place straight blade of screwdriver in slot at bottom of mold support and pry cover loo...

Page 131: ... the wiring harness is properly positioned and the sweep arm is in place 7 Check water fill cycle and adjust as required 8 Replace front cover Motor Removal To remove the motor 1 Disconnect refrigerator from electrical supply 2 Remove the icemaker from freezer compartment Remove mounting bracket 3 Disconnect two motor leads 4 Remove two motor mounting screws 5 Replace motor in reverse order Water ...

Page 132: ...ond to mold 6 Replace thermostat in reverse order Thermal Cut Out TCO Removal To remove the thermal cut out TCO 1 Disconnect refrigerator from electrical supply 2 Remove the icemaker from freezer compartment Remove mounting bracket 3 Remove front cover 4 Pull cable assembly free from support housing It will slide out easily 5 Loosen screw securing clamp to TCO TCO should come free after tension fr...

Page 133: ...e mold heater firmly in the mold groove It may be necessary to use a hammer and screwdriver to remove the heater from the mold groove 9 Use a flat bladed screwdriver to pry inoperative heater from mold groove 10 Clean remaining thermal mastic sealer from mold groove 11 Apply layer of thermal mastic sealer to mold groove 12 Install replacement mold heater 13 Replace parts in reverse order Ensure th...

Page 134: ...te The compressor area mounting tray does not need to be dropped to remove the fan assembly To remove the condenser fan assembly 1 Pull unit from its installation position and unplug from wall outlet 2 Extract the screws securing the compressor shield to the unit frame and remove from unit 3 Disconnect wire leads to condenser fan motor at molex connector 4 Extract the three bolts securing the fan ...

Page 135: ... system repairs The person making the repairs must know and understand all laws Local and International governing handling of all refrigerants The technician must be trained in the use of recovery and recycling equipment Electrolux Home Products Inc cannot be responsible nor assume any liability for injury or damage of any kind arising from the use of this manual Before entering the sealed system ...

Page 136: ...tandards Set For Home Appliances 6 GROUNDING The standard color coding for safety ground wires is GREEN or GREEN with YELLOW STRIPES Ground leads are not to be used as current carrying conductors It is EXTREMELY important that the service technician reestablish all safety grounds prior to completion of service Failure to do so will create a hazard 7 Prior to returning the product to service ensure...

Page 137: ... rate On some models a larger condenser will be used to reduce the discharge pressures and lower start up sound transmission A different filter drier will be used on refrigerating systems with R 134a The molecules of R 134a are smaller than those of R 12 therefore a dryer with smaller pores is necessary Otherwise R 134a could be trapped inside the filter drier along with the water On some products...

Page 138: ...he refrigerant to determine that appropriate product specifications are met This term usually implies the use of processes or procedures available only at a reprocessing or manufacturing facility Equipment Needed for Evacuation Recharging 1 1 Heated Dial A Charge charging cylinders 2 1 Recovery Recycling equipment 3 1 Tank for each type of refrigerant you use in service Do not mix refrigerants in ...

Page 139: ...rse the major parts of the motor and compressor in liquid refrigerant a situation has been created which when followed by a sequence of circumstances can lead to the compressor shell seam separating A hydraulic block occurs preventing the compressor from starting This condition is known as locked rotor Electric current continues to flow through the compressor motor windings which become in effect ...

Page 140: ...ced for the correct kit part number Refrigerant Cycle The refrigerant cycle is a continuous cycle that occurs whenever the compressor is in operation Liquid refrigerant is evaporated in the evaporator by the heat that enters the cabinet through the insulated walls and by the heat from product load and door openings The refrigerant vapor is then drawn from the evaporator through the suction line to...

Page 141: ...pump to run until the system has reached 13 inches of vacuum 4 Shut system down and allow to set for two minutes If pressure is below 0 pounds per square inch disconnect equipment and proceed with repair 5 If pressure does not stay bellow 0 pounds per square inch repeat steps 3 and 4 until ail refrigerant is removed and system remains in a vacuum Always make sure equipment is in good condition and...

Page 142: ...hanging the compressor If a high side leak is located and some refrigerant remains in the system it is not necessary to change the compressor Testing for Refrigerant Leaks If the system is diagnosed as short of refrigerant and the system has not been recently opened there is prob ably a leak in the system Adding refrigerant without first locating and repairing the leak or replacing the component w...

Page 143: ... must be equipped with approved pressure regulator and pressure relief valve Ensure that your hoses have adequate ratings for pressure involved and that all of your equipment is in good condition When flushing with nitrogen there MUST Be a pressure regulator on the tank with the maximum pressure on the lowside of the sealed system evaporator at 150 PSI and at the High side 300 PSI The end of the f...

Page 144: ...and a holding charge of inert gas Compressors have a low side process tube attached to the compressor shell A high side process tube is attached to the filter drier Replacement compressors for refrigerators may have an oil cooler even if the original compressor did not If the product is not equipped for an oil cooler leave the plastic caps in place and install the compressor connecting only to the...

Page 145: ...to the side of the pressure regulator Allow the suction line to hold the regulator in position 7 Release holding charge release slowly to avoid oil discharge on new compressor to ensure there is no leak in seam or tubing Reinstall rubber plug 8 Install new compressor in exact same manner as original compressor 9 Reform both suction and discharge lines to align with new compressor If they are too s...

Page 146: ...kit and weld in place Jumper tube is Part 242036701 15 With a sharp knife cut along a seam on the heat shield from center hole to edge of shield Slide shield from between liner drain trough and suction line assembly 16 Push evaporator back in place 17 Slide fan and bracket assembly in place and connect defrost heater Mount limit switch on evaporator Plug wiring harness into connector on liner 18 R...

Page 147: ...ing to fit into machine compartment opening being careful not to set up any excess noise from line vibration 18 Run product to make sure refrigerant is circulating 19 Reinstall evaporator and machine compartment cover DO NOT unbraze old filter drier from system This will vaporize and drive moisture from desiccant back into system The old filter drier should be cut out of system Cut Cap Tube At Lin...

Page 148: ... in the top left corner of the food compartment Because of this the original parts can not be removed There is a service kit to bypass the internal heat exchanger It will be necessary to run a new heat exchanger down the back of the product and bypass the internal heat exchanger if the heat exchanger has a leak or the cap tube is restricted Heat Exchanger Kit Contains 1 Heat Exchanger 6 Screws 1 F...

Page 149: ...lex over heat exchanger until cover is against hole at back of cabinet The excess cap tube can be wound around the suction line 13 Seal the hole on the inside and outside using permagum 14 Remove freezer door baskets and evaporator cover 15 Disconnect suction line from pressure regulator 16 Cut off suction line at freezer liner 17 Drill a 1 2 inch hole through cabinet next to old suction line 18 W...

Page 150: ...er with the process tube coming off the bottom and the cap tube soldered into a hole in the process tube See figure 7 15 To remove the filter drier 1 Pull unit from its installation position and unplug from wall outlet 2 Extract the screws securing the compressor shield to the unit frame and remove from unit Drop compressor area mounting tray if needed 3 Attach an approved self tapping line tap va...

Page 151: ...ator and compartment covers Replace freezer baskets and door The regulator is no longer used in production If it fails in the field it is to be replaced with a jumper tube Part 242036701 to connect ice maker suction line to line going to accumulator on the evaporator Figure 7 16 Pressure Regulator Pressure Regulator Inlet Line Outlet Line To Accumulator Figure 7 17 Heat Shield Jumper Tube Weld Jum...

Page 152: ...of fiberglass braid that is extended past end of heater wire and make knot in end just a little smaller than inside diameter of hot tube 3 Insert knot on end of braid into open end of perimeter hot tube 4 With braid inserted start vacuum pump and place your thumb over end of tube When good vacuum is obtained release your thumb and begin to feed braid into hot tube Continue this process until strin...

Page 153: ...tube adapter on process tube If compressor was not replaced cut process tube with tubing cutter leaving as much tube as possible but removing the line tap valve installed to remove the refrigerant Install the correct sized process tube adapter 4 Attach refrigeration service gauge manifold to system in following order a Low side compound gauge hose to suction side process tube adapter b High side p...

Page 154: ...m equipment is used just crack both manifold valves for a few minutes and then open slowly for the two full turns counterclockwise This will prevent the compressor oil from foaming and being drawn into the vacuum pump 2 Operate vacuum pump for 30 minutes to a minimum of 29 5 inches of vacuum or until a vacuum of 600 microns is obtained 3 Close the manifold valve connected to the vacuum pump Watch ...

Page 155: ...ich could damage an R 134a system At the earliest stage of development work on R 134a tests were carried out on a different type of synthetic oil known as Poly Alkaline Glycol PAG This oil is also used in certain air conditioning systems for cars PAG and Ester oil DO NOT mix with one another Service equipment used for R 134a Ester oil must not come into contact with PAG Charging The System Prepari...

Page 156: ... of vacuum pumps check with the manufacturer for restrictions and guidelines when using with R 134a If you use a vacuum pump with mineral oil to evacuate an R 134a system it is ABSOLUTELY ESSENTIAL to have a shut off valve between pump and your manifold gauge set The hand valve must be closed during all times when vacuum pump is not operating This will prevent migration of mineral oil vapor into R...

Page 157: ...o defrost models only The service technician should inquire as to the number of people in the family to determine the service load and daily door openings In addition he should know the room temperature for refrigerator and freezers For air conditioners check room size temperature amount of people windows and other factors that increase the load on the product After this phase of diagnosis is comp...

Page 158: ...epression with narcosis lethargy and anesthetic effects Other effects that may occur include dizziness a feeling of intoxica tion and a loss of coordination Continued breathing of high concentrations of HFC 134a vapors may produce car diac irregularities cardiac sensitization unconsciousness and with gross overexposure death Intentional misuse or deliberate inhalation of HFC 134a may cause death w...

Page 159: ...refrigeration system when the compressor is running the pressure in the low side will go into a vacuum As additional refrigerant leaks out the system will go deeper into a vacuum The system running in this vacuum will allow air and moisture to be pulled into the sealed system The moisture pulled in can then be mixed in to the Ester oil in the compressor If the product has had a low side leak you w...

Page 160: ... be monitored routinely Air lines should never be connected to storage tanks Filling and Charging Operations Before evacuating cylinders or refrigeration equipment any remaining refrigerant should be removed by recovery system Vacuum pump discharge lines should be free of restrictions that could increase discharge pressures above 15 psi 205 kPa and result in formation of combustible mixtures Cylin...

Page 161: ...t of liquid at 80 F 26 7 C Btu lb F 0 341 Specific heat of vapor at constant pressure 1 atm and 80 F 26 7 C Btu lb F 0 204 Flammable range volume in air None Ozone depletion potential 0 Greenhouse warming potential estimate 0 285 Flame limits measured using ASTM E681 with electrically activated kitchen match ignition source per ASHRAE Standard 34 Comparative Cycle Performance Evaporator temperatur...

Page 162: ...2 103 9 99 8 20 28 9 3 7 0 6 95 35 0 113 5 108 3 15 26 1 0 0 2 4 100 37 8 123 6 117 2 10 23 3 1 9 4 5 105 40 6 134 3 126 6 5 20 6 4 1 6 7 110 43 3 145 6 136 4 0 17 8 6 5 9 2 115 46 1 157 6 146 8 5 15 0 9 1 11 8 120 48 9 170 3 157 7 10 12 2 12 0 14 6 125 51 7 183 6 169 1 15 9 4 15 0 17 7 130 54 4 197 6 181 0 20 6 7 18 4 21 0 135 57 2 212 4 193 5 25 3 9 22 1 24 6 140 60 0 227 9 206 6 30 1 1 26 1 28 ...

Page 163: ...the outgoing heat energy This process slows the heat loss making the earth s surface warmer than it would be if this heat energy had passed unobstructed through the atmosphere into space The warmer earth s surface in turn radiates more heat until a balance is established between incoming and outgoing energy This warming process caused by the atmosphere s absorption of the heat energy radiated from...

Page 164: ...wer atmosphere They have many of the useful properties of the CFCs Because they do not contain chlorine they are not involved in ozone depletion NOT IN KIND NIK Technologies Technologies that do not rely on the use of fluorocarbons Ozone Ozone formed in the stratosphere by the action of sunlight on oxygen is also an airborne pollutant near ground level Low altitude tropospheric ozone is formed by ...

Page 165: ...o the lower control board If the food compartment is calling for cooling the automatic damper in the back air channel behind the crisper drawer of the food compartment will open and allow cold air to enter the food compartment The air is then carried up the air channel to the top and discharges into the top of the food compartment If the food compartment calls for cooling but the fan is not runnin...

Page 166: ...9 1 Wiring Schematics ERF2500 Control Schematic ...

Page 167: ...Wiring Schematics 9 2 PTD Board Ice and Water Module and LED Power Board ...

Page 168: ...Wiring Schematics 9 3 Icemaker Control Board ...

Page 169: ...Wiring Schematics 9 4 YELLOW YELLOW YELLOW Freezer Compartment Ice Maker Schematic ...

Page 170: ...Wiring Schematics Diagram 2419559 Rev C ...

Page 171: ...Wiring Schematics Diagram 2419801 Rev C ...

Page 172: ...Wiring Schematics Non Dispenser Models Diagram 242046100 Rev A ...

Page 173: ...Wiring Schematics Non Dispenser Models Diagram 242046700 Rev A ...

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