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Haier GE Appliances NS22HM Service Manual
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Haier GE Appliances NS22HM Service Manual

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Service
NS22HM
Manual
READ CAREFULLY.
.
KEEP THESE INSTRUCTIONS
31-5000750 Rev. 1 10-23

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Summary of Contents for Haier GE Appliances NS22HM

  • Page 1 Service NS22HM Manual READ CAREFULLY. KEEP THESE INSTRUCTIONS 31-5000750 Rev. 1 10-23...
  • Page 2 NS22HM Table of Contents WARNING ..........3 ............6 ......................................11 ........13 ....23 ..........27 ............30 ............31 CAUTION ...............31 ....34 ..............34 ........35 ....50 ............54 ............55 ............55 ..............56 ..........58 ..................63 ..........80 .......81 ......81 ............82 ............83 ....85 ............85 ...................................105 31-5000750 Rev. 1...
  • Page 3 MODEL NUMBER GUIDE 22 H 36 36 M – XX BRAND MAJOR / MINOR REVISION N-GE REFRIGERANT PRODUCT VOLTAGE SEER APPLICATION DESIGN VARIANT COOLING CAPACITY (1000BTU/HR) PHYSICAL AND ELECTRICAL DATA 13.4 24.6 17.6 33.5 24.7 UNIT DIMENSIONS (IN.) 38.88 36.88 38.25 38.88 36.88...
  • Page 4 SOUND RATINGS • • • • REFRIGERATION DATA COOLING PERFORMANCE WITH DTC High 47° 17° EER2 21.0 13.5 2.80 20.0 12.0 3.40 2.60 1170 12.0 3.50 2.35 1600 1000 12.0 3.30 2.40 1800 1100 31-5000750 Rev. 1...
  • Page 5 ACCESSORIES 1.851363 1.851364 1.851365 88K38 FAN BLADE SPECS Fan Blade NS22HM Dia. #of Blades Pitch Part # 26" 100017-02 26" 100017-03 31-5000750 Rev. 1...
  • Page 6 Parts Arrangement CONTROL PANEL -24, -36 OUTDOOR CONTROL DC INVERTER CONTROL GROUND LUG INVERTER REACTOR CONTACTOR – SPST CONTROL PANEL -48, -60 OUTDOOR CONTROL DC INVERTER CONTROL GROUND LUG INVERTER REACTOR CONTACTOR – SPST Figure 1. Parts Arrangement - Control Panel 31-5000750 Rev.
  • Page 7 Figure 2. Component Locations – NS22H24MA4 and NS22H36MA4 31-5000750 Rev. 1...
  • Page 8 Figure 3. Component Locations NS22H48MA4 and NS22H60MA4 (Scroll Compressor Models) 31-5000750 Rev. 1...
  • Page 9 Safety Precautions WARNING General Installation NOTE: • • • • IMPORTANT This product has been designed and manufactured to meet ENERGY STAR criteria for energy • NOTE: Failure to Inspection of Shipment • • DO NOT INSTALL THE UNIT 31-5000750 Rev. 1...
  • Page 10 Outdoor Section Location Minimum Clearance Install on a Solid, Level Mounting Pad NOTE Table 1. Clearances Discharge Air Building Structure 24” 6”* Mounting Slab 30” around Control Ground Level Mounting slab must slope slightly away from building, not to exceed 1/4” per foot. Figure 5.
  • Page 11 Rooftop Installations Operating Gauge Set Torque Requirements IMPORTANT Fastener Torque CAUTION Table 2. Torque Table IMPORTANT IMPORTANT IMPORTANT WARNING Using Manifold Gauge Set 31-5000750 Rev. 1...
  • Page 12 Operating Service Valves Liquid and Suction Line Service Valves Suction Line (Ball Type) Service Valve Figure 6. Figure 7. 31-5000750 Rev. 1...
  • Page 13 Suction Traps New or Replacement Line Set CAUTION NOTE: WARNING WARNING CAUTION WARNING DO NOT WARNING 31-5000750 Rev. 1...
  • Page 14 Heat Pump System (HFC410A) • • • NOTE: • • NOTE: • • • Valve Size Connections Recommended Line Sets Tonnage * Liquid Line Suction Line Line Set Length Table 3. Standard Refrigerant Line Set – Up to 50 Linear Feet in Length Maximum Total Maximum Linear Preferred Vapor...
  • Page 15 LINE SET IMPORTANT — Refrigerant lines must not contact structure. INSTALLATION REFRIGERANT LINE SET — INSTALLING Line Set Isolation — The following illustrations are VERTICAL RUNS (NEW CONSTRUCTION SHOWN) examples of proper refrigerant line set isolation: NOTE — Insulate liquid line when it is routed through areas where the surrounding ambient temperature could become higher than the REFRIGERANT LINE SET —...
  • Page 16 Procedure DISTRIBUTOR TUBES LIQUID LINE ORIFICE HOUSING ® TEFLON RING FIXED ORIFICE BRASS NUT DISTRIBUTOR ASSEMBLY REMOVE AND DISCARD ® WHITE TEFLON SEAL (IF PRESENT) LIQUID LINE ASSEMBLY (INCLUDES STRAINER) ® Figure 8. (Uncased Coil Shown) Connect Gauges and Equipment for Flushing Procedure CYLINDER CONTAINING GAUGE...
  • Page 17 Flushing Line Sets IMPORTANT NOTE: WARNING IMPORTANT WARNING WARNING 31-5000750 Rev. 1...
  • Page 18 Refrigerant Piping - Install Indoor Expansion Valve 1/2 Turn INDOOR EXPANSION VALVE INSTALLATION ® 3 - Install one of the provided Teflon rings around the TWO PIECE stubbed end of the check expansion valve and lightly 11 12 (Uncased Coil Shown) PATCH PLATE lubricate the connector threads and expose surface of (UNCASED...
  • Page 19 Refrigerant Piping - Brazing Procedures CAP AND CORE REMOVAL CUT AND DEBUR Cut ends of the refrigerant lines square (free from nicks or dents) Remove service cap and core from and debur the ends. The pipe must remain round. Do not crimp end both the vapor and liquid line service of the line.
  • Page 20 WRAP SERVICE VALVES To help protect service valve seals during brazing, wrap water-saturated cloths around service valve bodies and copper tube stubs. Use additional water-saturated cloths underneath the valve body to protect the base paint. FLOW NITROGEN Flow regulated nitrogen (at 1 to 2 psig) through the refrigeration gauge set into the valve stem port connection on the liquid service valve and out of the vapor valve stem port.
  • Page 21 Leak Test and Evacuation LEAK TEST HIGH MANIFOLD GAUGE SET OUTDOOR UNIT TO VAPOR SERVICE VALVE NOTE - Position canister to deliver liquid refrigerant. NITROGEN HFC-410A CONNECT GAUGE SET A - Connect the high pressure hose of an HFC-410A manifold gauge set to the vapor valve service port. NOTE - Normally, the high pressure hose is connected to the liquid line port.
  • Page 22 EVACUATION HIGH CONNECT GAUGE SET NOTE - Remove cores from service valves (if not already done). A - Connect low side of manifold gauge set with 1/4 SAE in-line tee to vapor line service valve B - Connect high side of manifold gauge set to OUTDOOR MANIFOLD liquid line service valve...
  • Page 23 Electrical - Circuit Sizing and Wire Routing WARNING Electrical Shock Hazard! 24VAC Transformer Thermostat Control and Low Voltage WARNING Control Wiring ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures WARNING WARNING NS22HM Low Voltage Control Wiring Connections 31-5000750 Rev. 1...
  • Page 24 Qty. of NS22HM Terminal Field Wiring Thermostat Type Indoor Unit Type Wires to Unit Operation Strip Connections Diagram Unit Table 6. NS22HM Thermostat Control Options Size Circuit and Install Service Disconnect Install Thermostat Switch MAIN FUSE BOX/BREAKER PANEL THERMOSTAT SERVICE DISCONNECT SWITCH 5 FEET...
  • Page 25 OUTDOOR UNIT CONNECT CONDUIT TO CUTOUT AND ROUTE HIGH CONNECTS TO VOLTAGE WIRING (2) RAST 6-PIN CONNECTORS LOW VOLTAGE MAKE-UP BOX GROMMET AND CABLE TIE ROUTE CONTROL WIRING THROUGH USE WATERTIGHT GROMMET AND CONDUIT FOR HIGH SECURE WITH VOLTAGE CABLE TIE Figure 13.
  • Page 26 O.D. SENSOR O.D. SENSOR OPTIONAL OPTIONAL ACC2 ACC2 ACC1 ACC1 RAST 6-PIN RAST 6-PIN CONNECTOR CONNECTOR RAST 6-PIN RAST 6-PIN CONNECTOR CONNECTOR VARIABLE CAPACITY TWO STAGE / CONVENTIONAL 24VAC VARIABLE CAPACITY TWO STAGE / CONVENTIONAL 24VAC OUTDOOR UNIT VARIABLE SPEED HEAT PUMP OUTDOOR UNIT VARIABLE SPEED...
  • Page 27 Outdoor Unitary Control Jumpers and Terminals 7 SEGMENT DISPLAY CHARGE MODE JUMPER (CHRG MODE) CHARGE MODE AND OPERATION MODE JUMPER DETAIL OPERATION MODE JUMPER PUSH BUTTON RAST TERMINALS FOR THERMOSTAT WIRING CONNECTION Figure 16. 7-Segment Display and Push Button Alarms Charge Mode Jumper 31-5000750 Rev.
  • Page 28 Charge Mode Display String Charge Mode Jumper Operation in the Cooling Mode Exiting Charge Mode Charge Mode Jumper Operation in the Heat Pump NOTE: Heating Mode 31-5000750 Rev. 1...
  • Page 29 Cooling Operation Mode Jumper Figure 17. Operation Mode Jumper Operation Mode Jumper Target Suction Jumper Position Pressure Setting Table 8. Cooling Operation Mode Jumper (Conventional 24VAC Thermostats Only) Heating Operation Mode Jumper Operation Mode Jumper Target Liquid Pressure Jumper Position Setting Table 9.
  • Page 30 Unit Operation NS22HM Unit Operation with a Conventional 24VAC 2-Stage Heat Pump Thermostat – Cooling Mode NS22HM Unit Operation with a Conventional 24VAC Single-Stage Heat Pump Thermostat – Heating Mode NS22HM Unit Operation with a Conventional 24VAC 2-Stage Heat Pump Thermostat – Heating Mode NS22HM Unit Operation with a Conventional 24VAC Single-Stage Heat Pump Thermostat –...
  • Page 31 NOTE: Defrost Function Defrost Test To Initiate a Forced Defrost Cycle Using the Unitary Control Push Button NOTE: Defrost Operating Modes • • • Defrost Termination Temperatures 50°F (10°C). The Forced Defrost Cycle will end when any of the following conditions are met: •...
  • Page 32 Designator Description Input Output Common RAST Connector Terminal Designations Table 10. Outdoor Control Terminal Designations and Inputs / Outputs 31-5000750 Rev. 1...
  • Page 33 WARNING Designator Description Input Output Common Charge Mode Charge Mode Disabled Enabled CHRG CHRG MODE MODE Table 11. Outdoor Control Terminal Designations and Inputs / Outputs 31-5000750 Rev. 1...
  • Page 34 WARNING Designator Description Input Output Common Table 11. Outdoor Control Terminal Designations and Inputs / Outputs Servicing Units Delivered Void of Charge Start-Up CAUTION If system dryness is not 31-5000750 Rev. 1...
  • Page 35 System Operation and Service Automatic Reset 7-Segment Alert and System Status Codes NOTE: NOTE: Resetting Alert Codes Manual Reset Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green...
  • Page 36 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • > > • • • • • • • • • Table 12.
  • Page 37 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green The O • • • • • • • • • • • •...
  • Page 38 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • NOTE: • • • • •...
  • Page 39 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • NOTE: • • NOTE: • • • •...
  • Page 40 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • NOTE: Troubleshooting Suggestions: • Check wire connections (U, V and W) at inverter plug in harness and compressor.
  • Page 41 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • NOTE: • • • • •...
  • Page 42 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • • • • • NOTE: Table 12.
  • Page 43 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • NOTE: • • • • Troubleshooting Options: • • • •...
  • Page 44 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • NOTE: • • • • NOTE: • •...
  • Page 45 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • • • NOTE: Table 12. Alert Codes and Troubleshooting 31-5000750 Rev.
  • Page 46 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • NOTE: • • • • • • • NOTE: Table 12.
  • Page 47 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • • • • • • • • • • • • NOTE: •...
  • Page 48 POWER-UP / RESET: 7-SEGMENT POWER-UP DISPLAY STRING FIRMWARE VERSION: During initial power-up or reset, the first item displayed is the outdoor control firmware version. Example to the right shows firmware version 2.3. UNIT TYPE: The next item displayed is the self discovery unit type.
  • Page 49 Description Example of Display Idle Mode Idle Mode O.E.M. Test Mode Cooling Capacity Diagnostic recal Fault memory clears Active error in outdoor control Idle mode Active error in run mode Outdoor Ambient Temperature (OAT) 104° Liquid Line Temperature (LIQ) 105° Charge Mode Table 13.
  • Page 50 PUSH − BUTTON OPERATION Outdoor control must be in IDLE mode (no heating or Allows cooling operation). call modes. NOTE - See table 7 for explanation of codes. Push and hold button until mode ment display until DASH ment display ( , , lease the button.
  • Page 51 Display Symbol Display Fan Test and Display String Option or Character Displayed during start- up or power recycling Control must be in Idle mode OFF. Control can be in Idle or demand mode NOTE - Table 15. Error Code Recall Mode (NOTE – control must be in idle mode) Table 16.
  • Page 52 Field Test Mode Operation Charge Mode Charge Mode Disabled Enabled • • • CHRG CHRG MODE MODE Figure 20. Charge Mode Operation Display Display and Action (normal operation) Table 17. Field Test, Diagnostic Recall and Program Menu Options 31-5000750 Rev. 1...
  • Page 53 Display Display and Action (normal operation) Table 18. TYPICAL 7-SEGMENT ACTIVE COOLING DEMAND DISPLAY STRING E 4 4 2 A 7 7 SECOND STAGE ACTIVE ERROR OUTDOOR AMBIENT COOLING DEMAND CODE (IF PRESENT) AIR TEMP BY DEFAULT, COOLING DEMAND, ACTIVE ERROR CODES AND OUTDOOR AMBIENT TEMPERATURE ARE DISPLAYED.
  • Page 54 Configuring Unit Selection Code Power-up - Unit selection code (two-digit number) displayed represents unit size code (outdoor unit capacity). During initial power-up, firmware version, unit type, unit capacity and unit selection code will appear on the 7-segment display. If three horizontal bars are shown in the 7-segment display −...
  • Page 55 System Overview • • • Frost Accumulation Time • • • Compressor Protection – Five-Strike Lockout Crankcase Heater (HR1) Defrost Cycle Time Crankcase Heater Thermostat (S40) Defrost Termination Temperature Defrost Function NOTE: reduced heating performance or damage to the outdoor 31-5000750 Rev.
  • Page 56 DEFROST TERMINATION DEFROST COIL JUMPER SENSOR LOCATION DEFROST TERMINATION JUMPER Figure 23. Defrost Components Maintenance Outdoor Unit NOTE: Outdoor Coil • • 31-5000750 Rev. 1...
  • Page 57 Indoor Unit Indoor Coil 31-5000750 Rev. 1...
  • Page 58 Unit Wiring Diagram Figure 24. Wiring Diagram 31-5000750 Rev. 1...
  • Page 59 Unit Sequence of Operation On 24 VAC power-up or outdoor reset, the outdoor control shall perform the following tasks: Start the anti-short cycle 3-minute delay in the outdoor control. Check status of the temperature sensor and pressure devices. If the outdoor control does not detect any error codes, outdoor control sends 24 volts out on the CNTCTR terminals to pull in the contactor coil.
  • Page 60 SUCTION Y1 DEMAND PRESSURE OR COOLING PRESSURE CUT-OUT IS CONTACTOR CLOSED DEMAND CLOSED IGNORED FOR ENERGIZED (S87) 90 SECONDS SWITCH IS CLOSED OR LOW PRESSURE OUTDOOR AMBIENT OPEN CLOSED (S87) TEMPERATURE IS 15ºF OR BELOW CONTACTOR DE-ENERGIZED The thermostat terminates demand when the contactor is de-energized.
  • Page 61 HIGH Y1 DEMAND TOP CAP PRESSURE CONTACTOR OR COOLING CLOSED CLOSED SWITCH (S173) SWITCH (S4) ENERGIZED DEMAND HIGH PRESSURE CLOSED OPEN SWITCH (S4) CONTACTOR DE-ENERGIZED The thermostat terminates demand when the contactor is de-energized. If demand is satisfied when alarm is not active, the OPEN 5-strike counter resets.
  • Page 62 START DEFROST IF DEFROST CYCLE TIME IS STATE CLOSE TO TARGET DEFROST CYCLE TIME (BETWEEN 80% - 120% TARGET DEFROST CYCLE TIME) – NO CHANGE IN FROST ACCUMULATION TIME ACCUMULATE FROST ACCUMULATION TIME – HP RUN TIME IF COIL TEMP BELOW 35°F IF DEFROST CYCLE TIME IS SHORT (80% OR LESS OF TARGET DEFROST CYCLE TIME)
  • Page 63 Component Testing Verifying High Pressure Switch and Low Pressure Protection Operation Low Suction Pressure Protection – High Pressure Switch (HI-PS) • • Checkout – S4 High Pressure Switch HIGH PRESSURE PRESSURE SWITCH SWITCH Figure 29. Verifying High and Low Pressure Switch Operation Verifying Suction Pressure Transducer Operation Figure 30.
  • Page 64 Suction Pressure DC Voltage Output Suction Pressure DC Voltage Output (PSIG) (Pin 2 to Pin 3) (PSIG) (Pin 2 to Pin 3) 4.50 Table 19. Suction Pressure Transducer Output Voltage 31-5000750 Rev. 1...
  • Page 65 SUCTION Y1 DEMAND PRESSURE OR COOLING PRESSURE CUT-OUT IS CONTACTOR CLOSED DEMAND CLOSED IGNORED FOR ENERGIZED (S87) 90 SECONDS SWITCH IS CLOSED OR LOW PRESSURE OUTDOOR AMBIENT OPEN CLOSED (S87) TEMPERATURE IS 15ºF OR BELOW CONTACTOR DE-ENERGIZED The thermostat terminates demand when the contactor is de-energized.
  • Page 66 HIGH Y1 DEMAND TOP CAP PRESSURE CONTACTOR OR COOLING CLOSED CLOSED SWITCH (S173) SWITCH (S4) ENERGIZED DEMAND HIGH PRESSURE CLOSED OPEN SWITCH (S4) CONTACTOR DE-ENERGIZED The thermostat terminates demand when the contactor is de-energized. If demand is satisfied when alarm is not active, the OPEN 5-strike counter resets.
  • Page 67 High Pressure Switch Protection Errors Inverter Alert Priority Actual Displayed How to Clear Alert Flash Component or System Operational State and Troubleshooting Tip Code Condition Alert Text Code Code • • • • • • Table 20. Alert Codes and Troubleshooting Compressor Operation, Checkout and Status / Error Codes NOTE: 31-5000750 Rev.
  • Page 68 SCROLL ROTARY COMPRESSOR COMPRESSOR (-60 unit only) 0.883 0.883 0.883 0.883 0.883 0.883 0.705 0.705 0.705 0.587 0.587 0.587 Figure 33. Compressor Operation, Checkout and Status/Error Codes NOTE: ELECTRICAL CONNECTION PLUG LOCATION TOP CAP SUCTION COMPRESSOR (NOT THERMOSTAT MOTOR SHOWN) (S173) DISCHARGE COMPRESSOR...
  • Page 69 Figure 34. NS23AMA Rotary Compressor Detail (NS22H24M, NS22H36M models) Compressor Equalization Valve Figure 35. Compressor Operation, Checkout and Status/Error Codes 31-5000750 Rev. 1...
  • Page 70 Inverter Flash Code Alert Inverter Priority Actual Displayed How to Clear Alert Component or System Operational State and Troubleshooting Tip Code Code Condition Alert Text Code Green • • • • • • • NOTE: • • • • • •...
  • Page 71 Inverter Flash Code Alert Inverter Priority Actual Displayed How to Clear Alert Component or System Operational State and Troubleshooting Tip Code Code Condition Alert Text Code Green • • • • • NOTE: • • • • • • • NOTE: Table 21.
  • Page 72 Inverter Flash Code Alert Inverter Priority Actual Displayed How to Clear Alert Component or System Operational State and Troubleshooting Tip Code Code Condition Alert Text Code Green • • • • • • • • • • • • • NOTE: •...
  • Page 73 Crankcase Heater, Checkout and Status / Error Codes Crankcase Heater (HR1) Crankcase Heater Thermostat (S40) Belly-Band Crankcase Heater - 240VAC, 40 Watts Crankcase Heater Thermostat Figure 36. Belly-Band Crankcase Heater Thermostat Figure 37. Checking Belly-Band Crankcase Heater NOTE: 31-5000750 Rev. 1...
  • Page 74 Figure 38. Checking Crankcase Heater Thermostat Compressor Sound Cover Figure 39. Compressor Sound Cover Suction Line Filter Drier (Rotary Compressor Models Only) Figure 40. Suction Line Filter Drier 31-5000750 Rev. 1...
  • Page 75 Liquid Line Filter Drier (NS22H48M and NS22H60M Scroll Compressor Models Only) Figure 41. Liquid Line Filter Drier Top Cap Switch Operation, Checkout and Status / Error Codes Top Cap Thermal Sensor Switch (S173) COMPRESSOR TOP CAP SWITCH (SPST BI-METALIC SWITCH), -24 AND -36 - NORMALLY OPENS AT 221-239ºF, AND CLOSES AT 140-176ºF -48 AND -60 - NORMALLY OPENS AT 239-257ºF,...
  • Page 76 Error: Inverter Alert Priority Actual Displayed How to Clear Alert Flash Component or System Operational State and Troubleshooting Tip Code Condition Alert Text Code Code • • • • • • Table 22. Outdoor Control 7-Segment Display Alert Codes - Top Cap Switch Reactor Operations, Checkout and Status / Error Codes VOLTAGE “IN”...
  • Page 77 Outdoor Fan Operation and Checkout VAC Voltage Check 31-5000750 Rev. 1...
  • Page 78 Figure 45. VAC Voltage Check 31-5000750 Rev. 1...
  • Page 79 Outdoor Control Operation, Checkout and Status / Error Codes 7 SEGMENT DISPLAY CHARGE MODE JUMPER (CHRG MODE) CHARGE MODE AND OPERATION MODE JUMPER DETAIL OPERATION MODE JUMPER PUSH BUTTON RAST TERMINALS FOR THERMOSTAT WIRING CONNECTION Figure 46. Outdoor Control Unit Inverter Alert Priority...
  • Page 80 NS22HM Thermostat Control Options NOTE: Qty. of NS22HM Terminal Field Wiring Thermostat Type Indoor Unit Type Wires to Unit Operation Strip Connections Diagram Unit Table 24. NS22HM Thermostat Control Options 31-5000750 Rev. 1...
  • Page 81 Cooling Operation Mode Jumper Operation Mode Target Suction Jumper Position Jumper Pressure Setting Table 25. Cooling Operation Mode Jumper (Conventional 24VAC Thermostats Only) Heating Operation Mode Jumper 31-5000750 Rev. 1...
  • Page 82 NS22HM Unit Operation with a Conventional 24VAC 2-Stage Heat Pump Thermostat - Heating Operation Mode Target Suction Jumper Position Mode Jumper Pressure Setting Table 26. Heating Operation Mode Jumper (Conventional 24VAC Thermostats Only) NS22HM Unit Operation with a Conventional 24VAC Single-Stage Heat PumpThermostat – Cooling Mode Figure 47.
  • Page 83 NS22HM Unit Operation with a Conventional Defrost Function 24VAC - Single Stage Heat Pump Thermostat - Heat Pump Heating Mode NOTE: NS22HM Unit Operation with a Conventional 24VAC - Single Stage Heat Pump Thermostat - Defrost Operating Modes Heat Pump Heating Mode •...
  • Page 84 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State How to Clear Code Code Condition Alert Text and Troubleshooting Tip Alert Code Green • • > > • • Table 27. Outdoor Control 7-Segment Display Alert Codes - Outdoor Control Errors 31-5000750 Rev.
  • Page 85 Unit Sensor Operation, Checkout and Status /Error Codes 6-Pin Sensor Harness (DIS, AMB, COIL) Discharge Sensor (R7 - No Sensor) Ambient Temperature Sensor (RT13) Coil Temperature Sensor (RT21) 4-Pin Suction Temperature Sensor / Liquid Temperature Sensor Harness Suction Line Sensor (RT41) Liquid Line Temperature Sensor (RT36) TEMP RANGE ºF RESISTANCE VALUES...
  • Page 86 NOTE: CRANKCASE HEATER THERMOSTAT (S40) OPENS AT 70ºF, CLOSES AT 50ºF OUTDOOR AMBIENT TEMPERATURE SENSOR Figure 49. Temperature Sensor Locations 31-5000750 Rev. 1...
  • Page 87 Degree Degree Degree Degree Resistance Resistance Resistance Resistance Fahrenehit Fahrenehit Fahrenehit Fahrenehit 136.3 2680 56.8 16657 21.6 44154 -11.3 123152 133.1 56.0 21.0 44851 125787 130.1 3040 55.3 20.5 45560 -12.6 128508 127.3 3223 54.6 17616 20.0 46281 -13.2 131320 124.7 3407 47014...
  • Page 88 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • • • • Table 29. Outdoor Control 7-Segment Display Alert Codes – Outdoor Control Errors DC Inverter Control Operation, Checkout, Status / Error Codes 31-5000750 Rev.
  • Page 89 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green Table 30. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes Inverter Flash Code Alert Inverter...
  • Page 90 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • NOTE: • • NOTE: • • • • •...
  • Page 91 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • NOTE: Troubleshooting Suggestions: • Check wire connections (U, V and W) at inverter plug in harness and compressor.
  • Page 92 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • NOTE: • • • • • •...
  • Page 93 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • • • • • NOTE: Table 31. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes 31-5000750 Rev.
  • Page 94 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • NOTE: • • • • Troubleshooting Options: • • • • •...
  • Page 95 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • NOTE: • • • • NOTE: • • •...
  • Page 96 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • • • NOTE: Table 31. Outdoor Control 7-Segment Display Alert Codes and Inverter LED Flash Codes 31-5000750 Rev.
  • Page 97 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • NOTE: • • • • • • • NOTE: Table 31.
  • Page 98 Inverter Flash Code Alert Inverter Priority Actual Displayed Component or System Operational State and Troubleshooting How to Clear Alert Code Code Condition Alert Text Code Green • • • • • • • • • • • • • NOTE: Table 31.
  • Page 99 System Refrigerant IMPORTANT IMPORTANT Adding or Removing Refrigerant Charge Mode Jumper 31-5000750 Rev. 1...
  • Page 100 MANIFOLD GAUGE SET HIGH GAUGE SET OUTDOOR UNIT CONNECTIONS FOR TESTING AND CHARGING REFRIGERANT TANK CHARGE IN LIQUID PHASE SUCTION LINE DIGITAL SCALE TO LIQUID TEMPERATURE SENSOR LINE SERVICE (LIQUID LINE) PORT TEMPERATURE SENSOR CLOSE MANIFOLD GAUGE SET VALVES AND CONNECT THE CENTER HOSE TO A CYLINDER OF HFC-410A SET FOR LIQUID PHASE CHARGING. CONNECT THE MANIFOLD GAUGE SET'S LOW PRESSURE SIDE TO THE SUCTION LINE SERVICE PORT.
  • Page 101 TEMPERATURE OF AIR AIRFLOW 80 24 24 24 23 23 22 22 22 20 19 18 17 16 15 INDOOR COIL ENTERING INDOOR COIL ºF 78 23 23 23 22 22 21 21 20 19 18 17 16 15 14 76 22 22 22 21 21 20 19 19 18 17 16 15 14 13 74 21 21 21 20 19 19 18 17 16 16 15 14 13 12 72 20 20 19 18 17 17 16 15 15 14 13 12 11 10...
  • Page 102 (All charging MUST be performed while system is operating SUBCOOLING CHARGING METHOD either at maximum speed or 100% demand.) 1. THE DIAGNOSTIC SCREEN ON THE THERMOSTAT OR OUTDOOR CONTROL 7-SEGMENT DISPLAY WILL SHOW INDOOR AND OUTDOOR MOTOR CFMS OR RPMS. 2.
  • Page 103 Figure 54. NS22H24M, NS22H36M Charging Label 31-5000750 Rev. 1...
  • Page 104 Figure 55. NS22H48M, NS22H60M Charging Label 31-5000750 Rev. 1...
  • Page 105 Notes 31-5000750 Rev. 1...

This manual is also suitable for:

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