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Goodman GXV6S 1 A Series Service Instructions Manual
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Goodman GXV6S 1 A Series Service Instructions Manual

Goodman GXV6S 1 A Series Service Instructions Manual

Inverter outdoor units, air handlers, cased coils with r32 refrigerant
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SiUS612414E
Service Instructions
GXV6S***1*A* / GXV9SA**1*A* / GZV6SA**1*A* / GZV7SA**1*A*
Inverter Outdoor Units,
AHVE** EEV Air Handlers & CAPEA* / CHPEA* EEV Cased Coils
with R32 Refrigerant
WARNING
ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE, MAIN-
TENANCE OR REPAIR (HEREINAFTER, "SERVICE") THE EQUIPMENT SPECIFIED IN
THIS MANUAL SHOULD SERVICE THE EQUIPMENT.
THIS EQUIPMENT IS NOT INTENDED FOR USE BY PERSONS (INCLUDING CHILDREN)
WITH REDUCED PHYSICAL, SENSORY OR MENTAL CAPABILITIES, OR LACK OF
EXPERIENCE AND KNOWLEDGE, UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR
INSTRUCTION CONCERNING USE OF THE APPLIANCE BY A PERSON RESPONSIBLE
WARNING
FOR THEIR SAFETY.
CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT THEY DO NOT PLAY WITH THE
EQUIPMENT.
DO NOT BYPASS SAFETY DEVICES
THE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY
DAMAGE ARISING FROM IMPROPER SUPERVISION, SERVICE OR SERVICE PROCE-
DURES. IF YOU SERVICE THIS UNIT, YOU ASSUME RESPONSIBILITY FOR ANY INJURY
OR PROPERTY DAMAGE WHICH MAY RESULT. IN ADDITION, IN JURISDICTIONS THAT
REQUIRE ONE OR MORE LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS
MANUAL, ONLY LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT. IMPROP-
ER SUPERVISION, INSTALLATION, ADJUSTMENT, SERVICING, MAINTENANCE OR RE-
PAIR OF THE EQUIPMENT SPECIFIED IN THIS MANUAL, OR ATTEMPTING TO INSTALL,
ADJUST, SERVICE OR REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT
PROPER SUPERVISION OR TRAINING MAY RESULT IN PRODUCT DAMAGE, PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
© 2024 Daikin Comfort Technologies Manufacturing, L.P.

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  • Page 1 SiUS612414E Service Instructions GXV6S***1*A* / GXV9SA**1*A* / GZV6SA**1*A* / GZV7SA**1*A* Inverter Outdoor Units, AHVE** EEV Air Handlers & CAPEA* / CHPEA* EEV Cased Coils with R32 Refrigerant WARNING ONLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL, ADJUST, SERVICE, MAIN- TENANCE OR REPAIR (HEREINAFTER, “SERVICE”) THE EQUIPMENT SPECIFIED IN THIS MANUAL SHOULD SERVICE THE EQUIPMENT.
  • Page 2 IMPORTANT INFORMATION IMPORTANT INFORMATION ..........2 - 4 WARNING TESTING CAPACITOR DC VOLTAGE ......5 - 6 O NOT CONNECT TO OR USE ANY DEVICE THAT IS NOT DESIGN SYSTEM OPERATION ............7 - 11 CERTIFIED BY THE MANUFACTURER FOR USE WITH THIS UNIT ERIOUS SERVICING ..............
  • Page 3 IMPORTANT INFORMATION NOTICE WARNING A������� ������������� ����������� ��� GOODMAN GTST (”EPA”) NITED TATES NVIRONMENTAL ROTECTION GENCY CONNECTED ���������� (H���������� �������� �� �� “T���������”) HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSAL OF REFRIGERANTS INTRODUCED INTO THIS UNIT AILURE TO FOLLOW THESE REGULATIONS MAY HARM THE...
  • Page 4 IMPORTANT INFORMATION NOTICE: When the outdoor unit is connected to main power, the inverter control board has a small current flowing into it to be prepared for operation when needed. Due to this, the control board components have to be cooled even when the unit is not running.
  • Page 5 TESTING CAPACITOR DC VOLTAGE WARNING A���� ������� ���� ��� ������� ����. •N���� ����� ��� ������� ���� ������ ���������� ���� ��� �������� ������� �� 50 ����� �� ����. 1. S��� ���� ��� ����� ��� ����� ��� ������� ��� ��� 10 �������. 2.
  • Page 6 TESTING CAPACITOR DC VOLTAGE 3.5 - 5.0 ton models and 3.0 - 4.0 ton Enhanced Capacity/High Efficiency models MULTIMETER (DC.VOLTAGE RANGE) USE TESTER TO CHECK THE VOLTAGE DC+ “C+” AND DC- “C-” IS 50 V OR LESS. Capacitor Voltage...
  • Page 7 SYSTEM OPERATION This section gives a basic description of unit operation, its The compressor increases the pressure of the gas, thus adding more heat, and discharges hot, high pressure su- various components and their basic operation. Ensure your perheated gas into the outdoor condenser coil. system is properly sized for heat gain and loss according to methods of the Air Conditioning Contractors Association In the condenser coil, the hot refrigerant gas, being warmer...
  • Page 8 SYSTEM OPERATION PIPING DIAGRAMS AC 1.5 - 3.0 ton models AC 3.5 - 5.0 ton models...
  • Page 9 SYSTEM OPERATION PIPING DIAGRAMS 1.5 - 3.0 ton models HP and 2.0 ton Enhanced Capacity models INDOOR UNIT OUTDOOR UNIT FUSIBLE PRESSURE SERVICE PORT PLUG SENSOR (7/16" FLARE) REVERSING VALVE MUFFLER OUTDOOR HEAT EXCHANGER STOP VALVE CHECK (GAS) INDOOR INDOOR VALVE HEAT EXCHANGER HEAT EXCHANGER...
  • Page 10 SYSTEM OPERATION COOLING OPERATION FLOW...
  • Page 11 SYSTEM OPERATION HEATING OPERATION FLOW...
  • Page 12 S-26 TESTING THERMISTOR, EEV COIL AND SOLENOID VALVE COIL RESISTANCE ..19 CHECKING WIRING ........13 S-100 REFRIGERATION REPAIR PRACTICE ..20 S-3E GOODMAN GTST CONNECTED THERMOSTAT ..........13 S-104 CHECKING COMPRESSOR EFFICIENCY... 20 CHECKING TRANSFORMER AND CONTROL S-114 NON-CONDENSABLE ........21 CIRCUIT ............
  • Page 13 Integrated Control Module S-2 CHECKING WIRING (*) Allowable maximum length (2) Non-A2L Compa�ble Gas Furnace or Modular Blower (*1) Communica�ng Thermostat WARNING (In case of GOODMAN GTST CONNECTED Thermostat) HIGH VOLTAGE ! ISCONNECT POWER BEFORE SERVICING OR Cased Coil Integrated Control Module...
  • Page 14 SERVICING S-4 CHECKING TRANSFORMER AND CONTROL S-12 CHECKING HIGH PRESSURE SWITCH CIRCUIT WARNING WARNING HIGH VOLTAGE ! HIGH VOLTAGE ! ISCONNECT POWER BEFORE SERVICING OR INSTALLING ULTIPLE POWER SOURCES MAY BE ISCONNECT POWER BEFORE SERVICING OR PRESENT AILURE TO DO SO MAY CAUSE PROPERTY INSTALLING ULTIPLE POWER SOURCES MAY BE DAMAGE...
  • Page 15 SERVICING S-13 CHECKING INDOOR UNIT / OUTDOOR S-16G CHECKING ECM MOTORS UNIT PRESSURE SENSOR DESCRIPTION With power ON: The indoor unit utilizes a 4-wire variable speed ECM blow- er motor. The ECM blower motor provides constant CFM. WARNING The motor is a serially communicating variable speed mo- OLTAGE NOW PRESENT tor.
  • Page 16 SERVICING To use the diagnostic tool, perform the following steps: Electrical Checks - High Voltage Power Circuits 1. Disconnect power to the indoor unit. 2. Disconnect the 4-circuit control harness from the HIGH VOLTAGE! motor. Disconnect ALL power before servicing or installing.
  • Page 17 SERVICING Electrical Checks - Low Voltage Control Circuits 6. Inspect the large capacitors inside the control/end bell (see figure below). Replace the control/end bell 1. Turn on power to the indoor unit. if any of the capacitors are bulging or swollen. Line Voltage now present.
  • Page 18 SERVICING S-17 CHECKING COMPRESSOR S-17A RESISTANCE TEST Inverter on the outdoor unit control board takes the position WARNING signal from the UVW line connected with the compressor. Hermetic compressor electrical terminal venting can When the system detects the malfunction on the compres- be dangerous.
  • Page 19 SERVICING S-17B GROUND TEST To check these thermistors: If fuse, circuit breaker, etc., has tripped, this is a strong in- dication that an electrical problem exists and must be found HIGH VOLTAGE! and corrected. The circuit protective device rating must be Disconnect ALL power before servicing checked, and its maximum rating should coincide with that or installing.
  • Page 20 SERVICING S-100 REFRIGERATION REPAIR PRACTICE S-104 CHECKING COMPRESSOR EFFICIENCY The reason for compressor inefficiency is that the compres- DANGER sor is broken or damaged, reducing the ability of the com- Always remove the refrigerant charge in a proper pressor to pump refrigerant vapor. manner before applying heat to the system.
  • Page 21 SERVICING S-114 NON-CONDENSABLE S-203 AIR HANDLER EXTERNAL STATIC If non-condensable is suspected, measure the pressure in To determine proper air movement, proceed as follows: the condenser (coil on high temperature side). If the pres- 1. Using a draft gauge (inclined manometer), measure the sure is abnormally high during normal operation, non-con- static pressure of the return duct at the inlet of the unit, densable may be present.
  • Page 22 SERVICING S-203A TWO PIECE INDOOR UNIT EXTERNAL Supply Duct STATIC Two piece indoor unit refers to EEV cased coil with Gas Furnace/Modular Blower. To determine proper air movement, proceed as follows: 1. With clean filters in the indoor unit, use a draft gauge EEV Cased Coil (inclined Manometer or Magnehelic gauge) to measure the static pressure of the return duct at the inlet of the...
  • Page 23 “Stop” to finish the test. NOTE: The refrigerant leak test is automatically turn off af- 4-1. Using Refrigerant Leak Test through GOODMAN ter 1 hour, even if you do not set it to “stop”. GTST CONNECTED Thermostat and continuity mode on a multimeter, check the electrical connection across TB11 and TB12 AND TB11 and TB13.
  • Page 24 SERVICING FAULT RECALL (EEV INDOOR UNITS) WARNING 7 Segment Diagnostic HIGH VOLTAGE! Fault Displays Recall O AVOID PERSONAL INJURY OR DEATH DUE TO ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER BEFORE PERFORMING ANY SERVICE OR MAINTENANCE The integrated control module is equipped with a momen- tary push-button switch that can be used to display the last NOTE: For the cased coil application, the active error codes six faults on the 7 segment LED display.
  • Page 25 SERVICING 2-DIGIT 7 SEGMENT DISPLAYS (EEV INDOOR UNITS) 7 Segment LED WARNING Description of Condition Display (State) HIGH VOLTAGE! (No display) INTERNAL CONTROL FAULT / NO POWER O AVOID PERSONAL INJURY OR DEATH DUE TO STANDBY, NORMAL MODE ELECTRICAL SHOCK DISCONNECT ELECTRICAL POWER (*1, 2) ELECTRIC HEAT STAGE 1 (HEAT PUMP...
  • Page 26 SERVICING 2-DIGIT 7 SEGMENT DISPLAYS (EEV INDOOR UNITS) 2. When the unit is having some major and minor error code in standby normal mode, 2-digit 7 segment displays keep showing error code. 2. Error code 3. When the unit is having some minor error code in normal mode, 2-digit 7 segment displays show error code and airflow status.
  • Page 27 SERVICING SETTING THE MODE DISPLAY (EEV INDOOR UNITS) MODE DISPLAY INTRODUCTION A 2-digit display is provided on the control board as a backup tool to the thermostat for accessing error codes and erasing error code history of the EEV indoor units. Follow the informa�on provided in this sec�on to learn how to use the mode display.
  • Page 28 SERVICING SETTING THE MODE DISPLAY (EEV INDOOR UNITS) <SCREEN ZERO> No Display First Error Code Idle Release Fault Recall in less than 2 sec mins. Press Fault Recall for Error Code Second Error Code Hold Fault Recall for more than 2 sec Solid Display Press Fault Recall for Error Code...
  • Page 29 SERVICING INDOOR UNIT ERROR CODES (EEV INDOOR UNITS) TROUBLESHOOTING...
  • Page 30 SERVICING INDOOR UNIT ERROR CODES (EEV INDOOR UNITS) TROUBLESHOOTING...
  • Page 31 SERVICING EMERGENCY MODE FOR EEV APPLICABLE 1. HEATING EMERGENCY MODE INDOOR UNIT Emergency Heating Mode is to be used when communica- tion between each equipment is not functioning properly. There are the following steps to setup Heating Emergency Mode. WARNING HEN SETTING AND WIRING, BE SURE TO TURN OFF THE POWER OF EQUIPMENT FOR EEV CASED COIL...
  • Page 32 SERVICING 2. COOLING EMERGENCY MODE FOR EEV AIR HANDLER This mode will run the electric heat strips independently of Cooling Emergency Mode is to be used when communica- any thermostat in one of two modes: High Heat Level or tion between the indoor and outdoor units is not functioning Low Heat Level.
  • Page 33 SERVICING For EEV CASED COIL For EEV AIR HANDLER There are the following steps to setup Cooling Emergency There are two key steps to setup Cooling Emergency Mode. Mode. 1) Remove the thermostat communication wirings (1, 1) Select the appropriate airflow on the indoor unit and 2, R and C) of all connected equipment (EEV cased enable emergency indoor airflow operation (using Dip coil, Gas Furnace/Modular Blower, Outdoor unit...
  • Page 34 SERVICING Switch Bank DS-6 Switch Bank DS-4 EEV Air Handler and Cased Coil Control Board Settings EEV Air Handler Fan Settings Function S-21 S-22 Function Value S-13 S-14 Normal operation OFF* OFF* Cooling Emergency mode OFF* Fan Only Emergency Mode Heating Emergency mode (High) *2 Speed Heating Emergency mode (Low) *1 *2...
  • Page 35 SETTING THE MODE DISPLAY MODE DISPLAY INTRODUCTION A 3-digit display is provided on the control board as a backup tool to the thermostat for reading faults, error code history, monitoring and setting up the outdoor unit. Follow the information provided in this section to learn how to use the mode display. DISPLAY The display consists of 3 digits.
  • Page 36 SETTING THE MODE DISPLAY NAVIGATING THROUGH THE DISPLAY SCREENS SCREEN 0 The home or default screen on the display. This shows the most recent fault. SCREEN 1 To access, hold the “RECALL” button from screen 0 - 5 seconds. SCREEN 2 To access, hold the “RECALL”...
  • Page 37 SETTING THE MODE DISPLAY ERROR CODE HISTORY NAVIGATION < SCREEN 1 > This mode will allow the user to see the six most recent system faults. For a list of the error codes, please see the TROUBLESHOOTING tables in this document. <...
  • Page 38 SETTING THE MODE DISPLAY MONITORING MODE NAVIGATION < SCREEN 0 > < SCREEN 2 > This screen allows the user to monitor system variables as shown in the tables at the end of this section. Blink interval: < SCREEN 1 > 0.4 sec.
  • Page 39 SETTING THE MODE DISPLAY SETTINGS MODE 1 NAVIGATION < SCREEN 3 > < SCREEN 0 > Setting Mode 1 allows the user to adjust system settings as shown in the tables at the end of this section. Blink interval: < SCREEN 2 > 0.4 sec.
  • Page 40 SETTING THE MODE DISPLAY SETTINGS MODE 2 < SCREEN 4 > < SCREEN 0 > Setting Mode 2 allows the user to change system settings. See table in back of this section. Blink interval: 0.4 sec. On - 0.4 sec. Off <...
  • Page 41 7-SEGMENT DISPLAY SCREEN 0 (Error code display) Setting Contents Notes Error code (present) SCREEN 1 (Error code history) Setting Contents Notes Error code (latest) Latest Error code (2nd) Error code (3rd) Error code (4th) Error code (5th) Error code (6th) SCREEN 2 (Monitoring mode) Setting Contents...
  • Page 42 7-SEGMENT DISPLAY SCREEN 3 (Setting mode 1) Installer/ Setting No. Contents Setting Serviceman Notes 0:-15% 4:5% 1:-10% 5:10% Cool Airflow Trim High 2:-5% 6:15% 3:0% 0:-15% 4:5% 8:30% 1:-10% 5:10% 9:Full Cool Airflow Trim Int 2:-5% 6:15% 3:0% 7:20% 0:-15% 4:5% 8:30% 1:-10%...
  • Page 43 7-SEGMENT DISPLAY SCREEN 4 (Setting mode 2) Installer/ Setting No. Contents Setting Serviceman Notes 0: 30min. 1: 60min. Maximum Defrost Interval 2: 90min. 3: 120min. System Verification Test 0:ON 1:OFF (System test) Force Defrost Cycle 0:ON 1:OFF 1:OFF Charge Verification Test 0:ON 0: -10.0 RPS 1: -9.5 RPS...
  • Page 44 TROUBLESHOOTING OUTDOOR UNIT ERROR CODES Thermostat Control board Probable Causes Corrective Actions Description display LED Display • High electrical noise Indicates a general memory error. • Replace control board if necessary • Faulty control board • Blocked/restricted outdoor unit coil and/or lines •...
  • Page 45 TROUBLESHOOTING OUTDOOR UNIT ERROR CODES Thermostat Control board Probable Causes Corrective Actions Description display LED Display • Faulty outdoor air thermistor or not properly • Check the connection to outdoor air thermistor; Repair/replace if The outdoor air thermistor is open or shorted. connected needed The control determines that the pressure sensor...
  • Page 46 TROUBLESHOOTING OUTDOOR UNIT ERROR CODES Thermostat Control board Probable Causes Corrective Actions Description display LED Display • Verify unit is connected to power supply as specified on rating Control detects a high power supply voltage • High line voltage supply plate condition.
  • Page 47 TROUBLESHOOTING OUTDOOR UNIT ERROR CODES Thermostat Control board Probable Causes Corrective Actions Description display LED Display • Check resistance on OL sensor to verify operation; Replace if • Overload protection (OL) sensor inoperable The Overload Protection sensor for Compressor is needed.
  • Page 48 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code High pressure error 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Does manifold Move to A . gauge indicate same high pressure as D-checker? 2 Method of Error [When cooling] Detection Adjust sub-cooling with manifold Overcharge?
  • Page 49 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Low pressure error 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Does manifold gauge indicate same Move to A . low pressure as D-checker? 2 Method of Error Detection OD pressure sensor failure? Check in accordance with the checking procedure then replace [Cooling]...
  • Page 50 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code EEV control error 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Charge amount of Charge refrigerant correctly. refrigerant is correct? 2 Method of Error Detection Indoor and outdoor Connect properly. EEV coils are connected to Detected by discharge pipe superheat PCB properly?
  • Page 51 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code High discharge temperature error 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Discharge temperature is higher than Check refrigerant leak. the criterion (120°C Check compressor fault. (248°F)). 2 Method of Error Detection Discharge thermistor is connected to PCB...
  • Page 52 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Outdoor PCB high temperature error 1 Applicable Models 5. Troubleshooting Outdoor AC 1.5 - 3.0 ton Diagnosis Corrective Actions Outdoor HP 1.5 - 3.0 ton Outdoor Enhanced HP 2.0 ton Check inverter fin temperature with D-checker.
  • Page 53 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Outdoor PCB high temperature error 1 Applicable Models 5. Troubleshooting Outdoor AC 3.5 - 5.0 ton Diagnosis Corrective Actions Outdoor HP 3.5 - 5.0 ton Outdoor Enhanced HP 3.0 - 4.0 ton Check inverter fin temperature with D-checker.
  • Page 54 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Refrigerant shortage 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Cooling amount of charge correct? Adjust charge per IO manual. SH is proper? 2 Method of Error Detection Check any clogging in refrigerant circuit.
  • Page 55 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Outdoor temperature outside of range 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Other Actual outdoor temperature Move to A . Cooling mode & Outdoor temperature > 55°C (131°F) Outdoor temperature < -21°C (-6°F) 2 Method of Error Heating mode Detection...
  • Page 56 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Refrigerant cooling sweat error 1 Applicable Models 5. Troubleshooting Outdoor HP 3.5 - 5.0 ton Diagnosis Corrective Actions Outdoor Enhanced HP 3.0 - 4.0 ton Charge amount of Check refrigerant leak. refrigerant is correct? Charge refrigerant correctly.
  • Page 57 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code Overload protection sensor open error 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP OL is connected to Connect properly. PCB properly? 2 Method of Error Detection OL switch is opened? Replace PCB.
  • Page 58 TROUBLESHOOTING OUTDOOR UNIT FLOWCHART Error Code System mismatch 1 Applicable Models 5. Troubleshooting Outdoor AC Diagnosis Corrective Actions Outdoor HP Is the combination of outdoor Replace to certified combination. and indoor units on the AHRI web site? 2 Method of Error Detection Make sure the airflow trim setting have not set to prohibited value.
  • Page 59 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Low indoor airflow (without electric heat mode) 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Obstacles...
  • Page 60 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Low indoor airflow (with electric heat mode) 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Obstacles...
  • Page 61 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code EEV disconnection detected 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Indoor...
  • Page 62 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Liquid side thermistor abnormality 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Indoor...
  • Page 63 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Gas side thermistor abnormality 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Indoor...
  • Page 64 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Pressure sensor abnormality 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection Indoor...
  • Page 65 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Indoor unit - outdoor unit, Gas furnace or blower unit communication error (during operation) 1 Applicable Models 5. Troubleshooting EEV cased coil Diagnosis Corrective Actions CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
  • Page 66 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Indoor unit – thermostat communication error (start-up & during operation) 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
  • Page 67 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Indoor unit - outdoor unit, gas furnace or blower unit communication error (startup operation) 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions EEV cased coil CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged.
  • Page 68 TROUBLESHOOTING INDOOR UNIT FLOWCHART Error Code Refrigerant Leakage Error 1 Applicable Models 5. Troubleshooting EEV air handler Diagnosis Corrective Actions A2L compatible gas furnace CAUTION Be sure to turn off the power switch before connecting or disconnecting connectors, or parts may be damaged. 2 Method of Error Detection System running for...
  • Page 69 TROUBLESHOOTING Network Troubleshooting If a network communication error code has occurred, use the following steps to help troubleshoot the system. (For network communication error codes, refer to the table below and the tables of error codes for outdoor unit and indoor unit.) After any wiring changes have been made or DS1 dip Indoor unit DS7...
  • Page 70 TROUBLESHOOTING Charge Verification Test Troubleshooting Charge Verification Test runs the unit at approximately 50% capacity for a duration of 2 hours (unless stopped earlier). This test is meant to help accurately adjust the amount of refrigerant charge for optimum performance. Once the test is started, it is expected to take about 20-25 mins for the unit to get stable and start displaying the Subcooling at liquid service valve (in Fahrenheit) on the thermostat AND on the...
  • Page 71 THERMISTOR RESISTANCE & TEMPERATURE CHARACTERISTICS Tm : Coil Tl : Liquid Ts : Suction Td : Discharge Ta : Outdoor air Tb : Defrost (*) Tgi: Indoor Gas Tli: Indoor Liquid Thermistor Thermistor Thermistor TEMP TEMP Volts Volts Volts Resistance Resistance Resistance (°C)
  • Page 72 PRESSURE VS TEMPERATURE CHART R32 Pressure vs. Temperature Chart PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F PSIG °F -119.58 102.0 23.99 202.0 64.31 302.0 91.41 402.0 112.37 502.0 129.66 -101.58 104.0 25.04 204.0 64.95 304.0 91.88 404.0 112.75 504.0 129.97...
  • Page 73 LIQUID LINE TEMPERATURE CHART Required Liquid Line Temperature REQUIRED SUBCOOLING TEMPERATURE (°F) LIQUID PRESSURE AT STOP VALVE (PSIG)
  • Page 74 WIRING DIAGRAMS Outdoor AC 1.5 - 3.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 75 WIRING DIAGRAMS Outdoor AC 3.5 - 5.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 76 WIRING DIAGRAMS Outdoor HP 1.5 - 3.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 77 WIRING DIAGRAMS Outdoor HP 3.5 - 5.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 78 WIRING DIAGRAMS Outdoor Enhanced Capacity HP 2.0 ton & High Efficiency AC 2.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 79 WIRING DIAGRAMS Outdoor Enhanced Capacity HP 3.0 - 4.0 ton & High Efficiency AC 3.0 - 4.0 ton Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 80 WIRING DIAGRAMS 208/230 V EEV Air Handler HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. 208V/230V (SEE NOTE 4) HEATER KIT 1PH / 60Hz GROUND LUG (24 VAC) 208V/230V / 1PH / 60Hz...
  • Page 81 WIRING DIAGRAMS 115 V Air Handler HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. (SEE NOTE 3) GROUND LUG 115V / 1PH / 60Hz 115V ECM MOTOR 1PH / 60Hz...
  • Page 82 WIRING DIAGRAMS EEV cased coil HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. ACC-IN ACC-OUT WIRING GROUND TO TB10 FIELD GROUND DATA SHARE PRESSURE SEG2 SEG1...
  • Page 83 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models 1.5 - 3.0 ton models and 2.0 ton Enhanced Capacity/High Efficiency models 1. Panels Step Procedure Points Remove 8 screws and...
  • Page 84 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points ■ When reassembling, insert the hook of the front panel into the slit of the partition plate.
  • Page 85 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points Cut the 2 clamps, ■ The 3 screws are pan head remove 3 screws and tapping screws.
  • Page 86 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models 2. Fan and Fan motor Step Procedure Points Remove the 1 screw ■ The screw is a truss head Drip proof plate and remove the drip tapping screw.
  • Page 87 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points Remove the nut and ■ Nut size: M8 ■ 1.5/2.0 ton remove the fan. ■...
  • Page 88 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points Remove 2 screws and ■ 1.5/2.0 ton remove the fan motor Fan motor stand stand.
  • Page 89 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points ■ When reassembling follow Back view the instructions. Bend the claw of fan ■...
  • Page 90 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only 3. Wiring (for HP models and 2.0 ton AC High Efficiency models) Step Procedure Points Cut the 4 clamps and ■...
  • Page 91 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only Step Procedure Points Remove 2 screws and ■ Four way valve coil remove the solenoid Tightening torque: valve coil.
  • Page 92 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only Step Procedure Points ■ 1.5/2.0/2.5 ton models ■ 3.0 ton and 2.0 ton Enhanced Capacity/ High Efficiency models Outdoor heat exchanger thermistor Defrost thermistor...
  • Page 93 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only 4. Wiring (for AC models) Step Procedure Points Cut the 4 clamps and ■ When reassembling, fix Clamp disconnect the PS lead the lead wire to the same wire. position with new clamps to prevent malfunction.
  • Page 94 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only Step Procedure Points Remove the outdoor ■ When reassembling, fix the Outdoor air thermistor air thermistor lead wires so that they do and outdoor heat not touch the edges. exchanger thermistor. ■...
  • Page 95 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models 5. Electrical box and PCB Step Procedure Points Remove 1 screw and Electrical box remove the electrical box.
  • Page 96 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points Disconnect the wires ■ When reassembling, be sure on climate talk board to curl the end of the lead (functional module), and fix the screw with the...
  • Page 97 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models Step Procedure Points Remove 3 screws and ■ The screws of the electrical remove the electrical component box cover are component box cover.
  • Page 98 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only 6. Sound blankets and Compressor (for HP models and 2.0 ton AC High Efficiency models) Step Procedure Points Remove 2 screws and...
  • Page 99 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only Step Procedure Points Remove the sound blanket (outer body). Sound blanket (outer body) Remove the sound ■...
  • Page 100 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only Step Procedure Points Remove the terminal ■ The illustration is for 2.0 ton cover. model as representative. Terminal cover Disconnect the ■...
  • Page 101 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models only Step Procedure Points Heat up the brazed ■ The illustration is for 2.0 ton parts of compressor model as representative.
  • Page 102 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only 7. Sound blankets and Compressor (for AC models) Step Procedure Points Remove 2 screws and ■ The upper screw is a truss remove the partition head tapping screw or a hex plate.
  • Page 103 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only Step Procedure Points Remove the sound blanket (outer body). Sound blanket (outer body) Remove the sound ■ The illustration is for 2 ton blanket (inner top). model as representative. Sound blanket (inner top) Remove the sound...
  • Page 104 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only Step Procedure Points Remove the terminal ■ The illustration is for 2 ton cover. model as representative. Terminal cover Disconnect the ■ The illustration is for 2 ton Protection bushing compressor lead wire.
  • Page 105 REMOVAL & REASSEMBLY PROCEDURE 1.5 to 3.0 ton AC only Step Procedure Points Heat up the brazed ■ The illustration is for 2 ton parts of compressor model as representative. piping and disconnect Brazed part them. ■ Before working, be sure to remove any putties, the terminal cover, and other Putty...
  • Page 106 REMOVAL & REASSEMBLY PROCEDURE 1.5 - 3.0 ton models HP & AC and 2.0 ton HP Enhanced Capacity and 2.0 ton AC High Efficiency models 8. Heat exchanger Step Procedure Points Remove the suction Suction grille grille. Remove 1 screw. Remove 4 screws and remove the left side Left side plate...
  • Page 107 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models 3.5 - 5.0 ton models and 3.0 - 4.0 ton Enhanced Capacity/High Efficiency models 1.
  • Page 108 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models Step Procedure Points Remove 1 screw and push down to remove the front panel (2).
  • Page 109 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models Step Procedure Points Remove 4 screws and remove the discharge grille. Discharge grille Remove 1 screw and ■...
  • Page 110 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models Step Procedure Points Remove 4 screws and remove the side cover. Side cover Remove 5 screws and ■...
  • Page 111 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models 2. Fan and Fan motor Step Procedure Points Disconnect the fan ■...
  • Page 112 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models Step Procedure Points Remove the nut and ■ Nut size: M8 remove the fan.
  • Page 113 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only 3. Wiring (for HP models and 3.0 - 4.0 ton AC High Efficiency models) Step Procedure Points...
  • Page 114 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only Step Procedure Points Remove the insulation ■ Cut the 2 clamps and tube and the suction remove the insulation tube.
  • Page 115 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only Step Procedure Points Remove the discharge pipe thermistor, liquid pipe thermistor and ground wire.
  • Page 116 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only 4. Wiring (for AC models) Step Procedure Points Disconnect the PS PS connector (X17A) connector. Disconnect the compressor connectors and Compressor release the lead wires connector (U, V, W) from the hooks. Hook Remove the outdoor ■...
  • Page 117 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only Step Procedure Points Remove the insulation ■ Cut the 2 clamps and tube and the suction remove the insulation tube. pipe thermistor. Suction pipe thermistor Clamp Suction pipe thermistor ■ When reassembling, the slit of the insulation tube must be positioned opposite to the suction pipe thermistor.
  • Page 118 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models 5. Electrical box and PCB Step Procedure Points Remove 2 screws and ■...
  • Page 119 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP & AC and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models Step Procedure Points Disconnect all the  HP models only Thermistors (X12A) Electronic expansion connectors on the valve coil (X21A) ...
  • Page 120 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only 6. Sound blankets and Compressor (for HP models and 3.0 - 4.0 ton AC High Efficiency models) Step Procedure Points...
  • Page 121 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only Step Procedure Points Remove the terminal cover. Terminal cover Disconnect the ■ The wiring is different ■...
  • Page 122 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only Step Procedure Points Remove the OL. ■ When reassembling, attach the OL as shown below. (1) Insert lower hooks of retainer into the square holes of fixture.
  • Page 123 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only 7. Sound blankets and Compressor (for AC models) Step Procedure Points Remove 6 screws and ■ The screws marked with a remove the stop valve circle is 3 class hexagon mounting plate.
  • Page 124 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only Step Procedure Points Remove the terminal ■ The illustration is for 5.0 ton cover. model as representative. Terminal cover Disconnect the ■ The wiring is different ■ 3.5/4.0 ton ■ 5.0 ton compressor lead wire.
  • Page 125 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only Step Procedure Points Remove the OL. ■ When reassembling, attach the OL as shown below. (1) Insert lower hooks of retainer into the square holes of fixture. (2) Push upper hooks of retainer until they hook in the square holes of fixture.
  • Page 126 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only 8. Heat exchanger (for HP models and 3.0 - 4.0 ton AC High Efficiency models) Step Procedure Points...
  • Page 127 REMOVAL & REASSEMBLY PROCEDURE 3.5 - 5.0 ton models HP and 3.0 - 4.0 ton HP Enhanced Capacity and 3.0 - 4.0 ton AC High Efficiency models only Step Procedure Points For 4 screws model, remove 4 screws and remove the partition plate.
  • Page 128 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only 9. Heat exchanger (for AC models) Step Procedure Points Remove 3 screws and ■ Before working, be sure remove the rear cover. to remove any putties, the terminal cover, and other Heat up the brazed plastic pieces that may burn.
  • Page 129 REMOVAL & REASSEMBLY PROCEDURE 3.5 to 5.0 ton AC only Step Procedure Points For 4 screws model, remove 4 screws and remove the partition plate. Partition plate For 3 screws model, remove 3 screws and remove the partition plate. Partition plate ■...
  • Page 130 D-CHECKER ADDENDUM The Daikin D-Checker software is used for monitoring or recording operation data of ▪ inverter using a connection cable exclusive to D-Checker. Please use correctly by carefully reading the instruction manual. This software can monitor inverter sensor data (temperature, pressure) and actuator status ▪...
  • Page 131 D-CHECKER ADDENDUM D-Checker Cable Connects to Plug X41A on both Boards Small Chassis 1.5 - 3.0 ton models and 2.0 ton Large Chassis 3.5 - 5.0 ton models and   Enhanced Capacity/High Efficiency models 3.0 - 4.0 ton Enhanced Capacity/High Efficiency models COM Port Verification Open the device manager software in your laptop.
  • Page 132 D-CHECKER ADDENDUM View System Operation Click Recording (F1) At least customer id must be entered. Select Add new (F3) Select OK (F1)when complete Click Select (F2) when desired customer is selected and then “New” Click Auto select (F2) Note: D-checker will Not communicate with a system in sleep mode or hibernate.
  • Page 133 D-CHECKER ADDENDUM Select correct COM port, then press OK (F1) Either incorrect COM port selected or system is in sleep mode When detection method completes a system name will populate Click OK (F1) One icon per piece One icon per piece of equipment of equipment...
  • Page 134 D-CHECKER ADDENDUM Recording Operation Data Click OK (F1) If Recording is required, Time recorded will populate click Start Rec. (F6) Select Graph View (F2) Selected data points from Op. Selected data (F4) 3 Analog scales to choose from on Graph 100, 1000, 10000 Selected Binary data points Reflects how selected data points are scaled...
  • Page 135 D-CHECKER ADDENDUM Change label name in editor tab (F5) Click OK (F1) When finished Recording, select Stop Rec. (F8) Playback and Exporting Data Select Play (F2) Select desired recording Add new folder to desktop with jobsite name Select CSV output (F2) Click Open then Save...
  • Page 136 REVISION HISTORY Month / Year Version Revised contents 10 / 2024 SiUS612414E First edition...
  • Page 137 CUSTOMER FEEDBACK We are very interested in all product comments. Please fill out the feedback form on the following link: https://www.goodmanmfg.com/about/contact-us You can also scan the QR code on the right to be directed to the feedback page. NOTE: SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE Visit our website at www.goodmanmfg.com for information on: •...

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