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NX6 / NX8 / NXA Models
Refrigerator Service Manual
Table of Contents - cont’d.
Figures
Fig. 1 - Refrigerator Information Label Location .............................. 5
Fig. 2 - Cooling Unit Bar Code
Label Location. ................................................................................... 5
Fig. 3 - Gas Absorption System ........................................................ 9
Fig. 4 - Flash Patterns .................................................................... 16
Fig. 5A - Thermistor ....................................................................... 19
Fig. 5B - Thermistor in Ice .............................................................. 19
Fig. 6 - NX61 / NX81, NX64 / NX84, NXA64 / NXA84 Continuous 12-
Volt ................................................................................................... 21
Fig. 7 - NX61 / NX81, NX64 / NX84, NXA64 / NXA84 Switched
12-Volts ............................................................................................ 21
Fig. 8 - NX64 / NX84, NXA64 / NXA84 Display Board .................. 26
Fig. 9 - Diagnostic LEDs Segments Identification .......................... 26
Fig. 10 - Roof Exhaust Venting Arrangement. ............................... 29
Fig. 11 - Rear View–Roof Exhaust Venting .................................... 30
Fig. 12 - Baffles Req. for Inboard Roof Exhaust Vent Installation... 30
Fig. 13 - Vertical Enclosure Depth of 24 > 26 Inches .................... 31
Fig. 14 - Vertical Enclosure Depth of 26 > Inches ......................... 32
Fig. 15 - Offset Vertical Enclosure Depth of 24 > 25 Inches .......... 33
Fig. 16 - Offset Vertical Enclosure Depth of 26 > Inches ............... 34
Fig. 17 - Double Side Wall Enclosure Depths of 24 > 26 Inches ... 36
Fig. 18 - Double Side Wall Enclosure Depth of 26 > Inches .......... 37
Fig. 19 - LP Gas System Components ........................................... 38
Fig. 20 - Solenoid Gas Valve. ......................................................... 39
Fig. 21 - LP15 Orifice Assemblies .................................................. 40
Fig. 22 - Burner ............................................................................... 40
Fig. 23 - Burner Tube ...................................................................... 40
Fig. 24 - Flue and Components ...................................................... 41
Fig. 25 - Flue Baffle ........................................................................ 41
Fig. 26 - Flame Appearance ........................................................... 41
Fig. 27 - Drip Cup and Burner Box Cover ....................................... 43
Fig. 28 - Burner and Components ................................................. 43
Fig. 29 - DC Heater ........................................................................ 45
Fig. 30 - AC and DC Heaters (3-way refrigerator) .......................... 46
Fig. 31 - Lamp/Thermistor Assembly. ............................................. 46
Fig. 32 - AC Heater. ........................................................................ 46
Fig. 33 - AC Power Cord. ................................................................ 47
Fig. 34 - Fan Mounted on Top of Absorber Coil. ............................. 47
Fig. 35 - Fan Thermostat. ............................................................... 47
Fig. 36 - Fan with Installed NORCOLD Fan Kit .............................. 48
Fig. 38 - Wiring Diagram and Pictorial-Low Ambient Heater .......... 48
Fig. 37 - NORCOLD Fan Kit Wiring Pictorial ................................. 48
Fig. 39 - Reset Pushbutton ............................................................. 48
Fig. 40 - Cooling System Diagnostics ............................................. 50
Fig. 41 - Wiring - NX61 / NX81, NX64 / NX84, NXA64 / NXA84 .... 52
Fig. 42 - Wiring - NX61 / NX81, NX64 / NX84, NXA64 / NXA84 .... 53
Fig. 43 - NX61, NX81 Display Board .............................................. 54
Fig. 44 - NX64 / NX84, NXA64 / NXA84 Display Board ................ 55
Fig. 45 - Ice Maker .......................................................................... 57
Fig. 46 - Ice Maker Mounting Hardware ......................................... 58
Fig. 47 -Test points L and N. ........................................................... 59
Fig. 48 - Test points T and H. .......................................................... 59
Fig. 49 - Water Fill Adjustment Screw and Indicator. ...................... 59
Fig. 50 - Energize water valve through test points V and L ............ 60
Fig. 51 - Measure water valve solenoid resistance ........................ 60
Fig. 52 - Measure mold heater resistance ...................................... 61
Fig. 53 - Check voltage to motor ................................................... 61
Fig. 54 - NX64IM / NX84XIM, NXA64IM / NXA84XIM – Ice Maker
Wired to Refrigerator AC Cord .......................................................... 62
Fig. 55 - NX64IM / NX84XIM, NXA64IM / NXA84XIM – Ice Maker
Wired to Unit Refrigerator Cord ........................................................ 62
Tables
Table 1: Temperature Set Points NX61 / NX81 .................................... 14
Table 2:
Temperature Set Points NX64 / NX84, NXA64 / NXA84.......................14
Table 3: Clearances for Roof Vented Installations ................................ 30
Table 4: NX61, NX81 Operation Modes ................................................ 54
Table 5: NX64 / NX84, NXA64 / NXA84 Operation Modes ................... 55
Table 6: NX64 / NX84, NXA64 / NXA84 Display Codes ....................... 56
