
4
Temp Mode/Temp Display.....................................................41
Alarms and Signals...............................................................41
Temperature Alarm.............................................................41
Alarm condition..................................................................41
Reset button.......................................................................41
Door Ajar LED (Flashing Green) .........................................42
Show Room Setting..............................................................43
Activation ...........................................................................43
Deactivation........................................................................43
Active function....................................................................43
Advance into Defrost Cycle Manually....................................43
Activation ...........................................................................43
Deactivation........................................................................43
Wave-Touch..........................................................................44
1st Level - Sleep Mode.......................................................44
2nd Level - Awakened Display Mode..................................44
3rd Level - User Variable Options.......................................44
Setting cooling temperatures .............................................44
Alarms................................................................................45
Sabbath Mode.......................................................................45
IQ-Touch ...............................................................................46
Setting cooling temperatures .............................................46
Alarms................................................................................46
Wave-Touch/IQ-Touch graphic displays................................47
Performance Data.................................................................48
Wiring Diagrams...................................................................49
Service Diagnostics Mode ....................................................52
View ...................................................................................52
Test.....................................................................................52
Activation ...........................................................................52
Deactivation........................................................................52
Operation............................................................................52
Startup Procedure ..............................................................52
AC Load Testing....................................................................52
Test 1 - Standard Compressor Test ....................................52
Test 2 - Defrost Heater Test ................................................53
Test 3 - Fresh Food Compartment Lighting Test.................53
Test 8 - Water Valve, Wate Dispenser only .........................53
Test 9 - Freezer Compartment Lighting Test .......................53
Test 10 - Auger Motor ........................................................53
Test 11 - Cube/Crush Solenoid ...........................................53
DC Load Testing....................................................................53
Test 38 - VCC Compressor .................................................53
Test 15 - Evaporator Fan.....................................................53
Test 22 - Damper Test ........................................................53
Digital Input Test...................................................................53
Test 23 - Fresh Food Door ..................................................53
Test 24 - Freezer Door ........................................................53
Test 26 - DTT (Defrost Limit Switch)..................................53
Test 28 - Dispenser Paddle Test .........................................53
Test 36 - Ice Door Test .......................................................53
Test 29 - Fresh Food Thermistor ........................................53
Test 30 - Freezer Thermistor...............................................53
Test 33 - Ambient Thermistor.............................................53
Firmware Versions................................................................54
Test 34 - What software is on the control boards...............54
Manual Defrost...................................................................54
Show Room Mode..............................................................54
Notes ....................................................................................55
Control Removal and Installation..........................................56
Food Compartment Light Switch ..........................................59
Freezer Compartment Light Switch.......................................59
Lighting Control....................................................................59
Temperature Resistance Chart ..............................................60
Section D - Air Circulation........................................ 62
Automatic Defrost Models ....................................................62
Principals of Automatic Defrost Operation .........................62
Air Circulation Patterns.......................................................62
Section E - Refrigeration System................................ 63
Definitions ............................................................................63
Recovery ............................................................................63
Recycling............................................................................63
Reclaim ..............................................................................63
Safety Warnings....................................................................63
Compressor Testing ...........................................................63
Charging Sealed Systems...................................................63
Soldering............................................................................64
Basic Components................................................................64
Perimeter Hot Tube ...............................................................64
Refrigerant Cycle ..................................................................64
Lor or High Side Leak or Undercharge..................................64
Testing for Refrigerant Leaks ................................................65
Checking for Internal (Hot Tube) Leaks.................................65
Compressor Replacement.....................................................66
To flush the system ............................................................66
To use dry nitrogen to flush the system .............................66
To use refrigerant to flush the system ................................66
Installing a New Compressor................................................67
Evaporator Replacement.......................................................69
Heat Exchanger Replacement ...............................................70
To replace the heat exchanger: ...........................................70
Perimeter Hot Tube Repair Kit...............................................72
Bypassing Perimeter Hot Tube - Step 1..............................72
Installing the Heater Wire - Step 2......................................72
Installing the Heater Wire - Step 3......................................73
Condenser Replacement.......................................................73
Filter-Drier Installation ..........................................................74
Evacuating and Recharging ..................................................74
Equipment needed..............................................................75
Installing Evacuation and Recharging Equipment...............75
Evacuating System .............................................................75
Charging the System ..........................................................76
Final Leak Test....................................................................76
Section E - R-134a Service Information ........................ 78
Verify Refrigerant Type in the System...................................78
Dedicated Equipment............................................................78
R-134a Refrigeration Systems..............................................78
Miscibility of R-134a and Ester Oil........................................78
Water in the Refrigeration System........................................79
Vacuum Pump Maintenance .................................................79
Refrigerant Leaks..................................................................80
Leak Detection ......................................................................80
HFC-134a, CFc-12 Pressure Temperature Chart....................81
Inhalation Toxicity.................................................................81
Cardiac Sensitization.............................................................81