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Gree FLEXX36HP230V1AO Service Manual

Gree FLEXX36HP230V1AO
121 pages
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1
DC INVERTER HEAT PUMP
CONDENSING UNIT SERVICE MANUAL
(GC202006-I)
Capacity: 24kBtu/h~60kBtu/h
Rate Frequency: 60Hz
Operation Range:
Cooling: 5°F(-15°C)~129.2° F(54° C )
Heating: -22°F (-30°C)~75.2°F (24°C)
FLEXX

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Gree FLEXX36HP230V1AO Specifications

General IconGeneral
Cooling Capacity36000 BTU/h
Heating Capacity36000 BTU/h
RefrigerantR410A
HSPF Rating10
Phase1
Voltage208-230V

Summary

Foreword

Safety Notice

Provides essential safety guidelines and warnings for proper usage of the air conditioner.

Safety Notice on Maintenance

Maintenance Safety Precautions

Details prohibited actions, warnings, and notices for safe maintenance procedures.

Safety Notice on Operation

Operational Safety Precautions

Outlines prohibited actions, warnings, and notices for safe operation of the unit.

1 Product Introduction

1.1 Lists of Units

Details outdoor and indoor unit models, their capacities, power supply, and product codes.

1.2 Electrical Parameters

Electrical Specifications

Provides electrical specifications including power supply and circuit breaker/fuse capacities for different models.

2 Control

2.1 Operation Mode

Explains the operational logic for cooling and heating cycles.

2.2 Control Mode

Control Mechanisms

Details compressor, EXV, fan, and valve control mechanisms, including special and protection controls.

2.3 Functions

Configuration Functions

Covers dip switch settings for capacity, defrost mode, operating mode, and fan speed.

Special Control Functions

Details forced defrost, refrigerant recovery, forced operation, and thermostat functions.

3 Troubleshooting

3.1 Wiring Diagrams

Provides electrical diagrams for outdoor and indoor unit wiring.

3.2 PCB Layout

Details the interfaces and connections on the indoor unit mainboard.

3.3 Error Codes

Lists all error codes, their descriptions, and potential causes for system malfunctions.

3.4 Troubleshooting

3.4.1 E1 Compressor High Pressure Protection

Diagnoses and provides solutions for E1 error (Compressor High Pressure Protection).

3.4.2 E3 Low Pressure Protection

Troubleshooting for E3 error, covering low pressure and refrigerant issues.

3.4.3 E4 High Temperature Protection

Addresses E4 error related to high compressor discharge temperature and its causes.

3.4.4 F2 Condenser Sensor Error

Details troubleshooting steps for F2 error, indicating a condenser temperature sensor issue.

3.4.5 F3 Ambient Sensor Error

Troubleshooting guide for F3 error, related to the outdoor ambient temperature sensor.

3.4.6 F4 Discharge Sensor Error

Provides troubleshooting for F4 error, concerning the discharge temperature sensor.

3.4.7 F6 ODU Tube Sensor Error

Troubleshooting steps for F6 error, related to ODU tube temperature sensor malfunctions.

3.4.8 EE ODU Memory Chip Error

Guides on resolving EE error, indicating a problem with the ODU memory chip.

3.4.9 H4 Overload Protection

Troubleshooting for H4 error, related to system overload conditions.

3.4.10 H5 IPM Protection

Troubleshooting steps for H5 error, indicating IPM module protection.

3.4.11 H6 DC Fan Error

Details troubleshooting for H6 error, related to the DC fan malfunction.

3.4.12 H7 Driver Out-of-Step Protection

Troubleshooting guide for H7 error, concerning driver out-of-step protection.

3.4.13 HC PFC Protection

Troubleshooting for HC error, related to PFC protection.

3.4.14 Lc Startup Failure

Guides on resolving Lc error, indicating inverter compressor startup failure.

3.4.15 P0 Driver Reset Protection

Troubleshooting steps for P0 error, related to driver reset protection.

3.4.16 P5 Over-Current Protection

Troubleshooting for P5 error, related to compressor over-current.

3.4.17 P6 Communication Error

Troubleshooting guide for P6 error, concerning communication issues.

3.4.18 P7 Driver Module Sensor Error

Troubleshooting for P7 error, related to driver module sensor malfunctions.

3.4.19 P8 Driver Module High Temp Protection

Guides on resolving P8 error, indicating driver module high temperature protection.

3.4.20 PA AC Current Protection

Troubleshooting steps for PA error, related to AC current protection.

3.4.21 Pc Driver Current Error

Troubleshooting for Pc error, indicating driver current error.

3.4.22 PL Bus Low-Voltage Protection

Troubleshooting guide for PL error, concerning bus low-voltage protection.

3.4.23 PH Bus High-Voltage Protection

Troubleshooting for PH error, related to bus high-voltage protection.

3.4.24 PU Charge Loop Error

Troubleshooting steps for PU error, related to charge loop errors.

3.4.25 ee Drive Memory Chip Error

Guides on resolving ee error, indicating a drive memory chip issue.

3.4.26 e1 High Pressure Sensor Error

Troubleshooting for e1 error, concerning high pressure sensor malfunctions.

3.4.27 C4 ODU Jumper Cap Error

Troubleshooting steps for C4 error, related to ODU jumper cap issues.

3.5 Failures Not Caused by Errors

Common Operational Issues

Addresses common problems like unit not running or poor cooling/heating effects.

4 Maintenance

4.1 System Diagram

Illustrates the overall system diagram, including major components and refrigerant flow.

4.2 Connection Pipe Vacuum Pumping

Vacuum Pumping Procedure

Detailed steps for performing vacuum pumping on connection pipes.

4.3 Refrigerant Charging

Refrigerant Charging Procedure

Step-by-step procedure for charging refrigerant into the system.

4.4 Maintenance of Major Components

4.4.1 Replacement of thermostat

Instructions for replacing the thermostat unit.

4.4.2 How to replace the compressor

Comprehensive guide for diagnosing and replacing the compressor.

4.5 Removal of Major Components

4.5.1 Removal of ODU Major Components

Describes the removal procedures for major components of the Outdoor Unit (ODU).

4.5.2 Removal of IDU Major Components

Describes the removal procedures for major components of the Indoor Unit (IDU).

4.6 Explosive View and Lists of Parts

4.6.1 ODU Explosive View and Lists of Parts

Exploded views and parts lists for the Outdoor Unit (ODU) models.

4.6.2 IDU Explosive View and Lists of Parts

Exploded views and parts lists for Indoor Unit (IDU) models.

Appendices

1 Resistance/Temperature Lists of Temperature Sensors

Provides voltage lists correlating resistance and temperature for 15K, 20K, and 50K sensors.

2 Temperature/Pressure List of Refrigerant

Refrigerant R410A Data

Table showing refrigerant R410A temperature and pressure values.

3 Operation Tools

Required Tools List

Lists the necessary tools for operating and maintaining the unit.

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