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Gree GRS-CQ10Pd/NhG-M - User Manual

Gree GRS-CQ10Pd/NhG-M
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Air-to-water Heat Pump
Thank you for choosing commercial air conditioners. Please read
t
his Owner s Manual carefully before operation and retain it for
f
uture reference.
If
you have lost the Owner's Manual,please contact the local agent
or
visit www.gree.com or send an email to global@gree.com.cn for
t
he electronic version.
GREE PRODUCTS, S.L.
Owner's Manual
Original Instructions
Air Conditioners
MONOBLOC
TYPE

Table of Contents

Other manuals for Gree GRS-CQ10Pd/NhG-M

Questions and Answers

  • J
    Justin AndersonAug 5, 2025
    What to do if Gree Heat Pump does not heat although compressor is running?
    • D
      Dana MartinAug 5, 2025
      If your Gree Heat Pump isn't heating despite the compressor running, a possible cause is refrigerant leakage, which requires leakage detection and refrigerant replenishment. Another potential cause is a malfunctioning compressor, which would need replacement.
  • C
    Christopher DixonAug 9, 2025
    How to improve hot water heating efficiency of Gree GRS-CQ10Pd/NhG-M?
    • J
      Jennifer ChoiAug 9, 2025
      If your Gree Heat Pump has poor hot water heating efficiency, check for poor heat insulation in the water system and enhance it. Also, check for poor heat exchange of the evaporator by ensuring normal air flow and cleaning the evaporator. Poor refrigerant levels due to leaks can also cause this, so check for refrigerant leaks. Finally, a blockage in the heat exchanger on the water side can reduce efficiency; clean or replace the heat exchanger if needed.
  • S
    Sara MasonAug 14, 2025
    What causes heavy noise of Gree Heat Pump compressor?
    • G
      Gabriel GardnerAug 14, 2025
      Heavy noise from the Gree Heat Pump compressor can occur if liquid refrigerant enters the compressor, leading to liquid slugging. Check the expansion valve and temperature sensor for failures or looseness, and repair if necessary. Alternatively, internal parts in the compressor may be broken, requiring compressor replacement.
  • L
    Larry ThomasAug 18, 2025
    What to do if Gree GRS-CQ10Pd/NhG-M Heat Pump fan makes a heavy noise?
    • C
      Christine Perez MDAug 18, 2025
      If the Gree Heat Pump fan is making excessive noise, it could be due to a loose fixing bolt, which needs to be re-fixed. Alternatively, the fan blade might be touching the shell or grill, requiring adjustments. Unreliable fan operation may also cause noise, indicating the fan needs replacement.
  • B
    Brandon HallAug 22, 2025
    What to do if Gree GRS-CQ10Pd/NhG-M Heat Pump water pump does not run?
    • R
      Robert SmithAug 22, 2025
      If the Gree Heat Pump water pump isn't running or is running abnormally, it could be due to a malfunction in the power supply or terminal, requiring you to find out the reasons and repair it. A malfunctioning relay could also be the cause, necessitating a relay replacement. Another potential issue is air in the water pipe, which needs to be evacuated.
  • K
    Kathryn LynchAug 27, 2025
    Why won't my Gree Heat Pump compressor start?
    • M
      Mrs. Kelly Hansen DDSAug 27, 2025
      If the Gree Heat Pump compressor isn't starting, it could be due to a power supply issue such as a reversed phase sequence. It may also be due to loose connection wires, which should be checked and re-fixed. A malfunction of the mainboard or the compressor itself could also be the cause, requiring repair or replacement, respectively.
  • S
    Stephen WilliamsAug 31, 2025
    Why does my Gree GRS-CQ10Pd/NhG-M compressor start and stop frequently?
    • J
      James WangAug 31, 2025
      If your Gree Heat Pump compressor frequently starts and stops, it could be due to poor or excess refrigerant; in this case you should discharge or add part of the refrigerant. It might also be caused by poor circulation in the water system, potentially due to blockages or air, so inspect the water pump, valve, and pipeline, cleaning the water filter or evacuating air as needed. A low load can also cause this issue; try adjusting the load or adding accumulating devices.

Summary

Safety Notices

General Safety Guidelines

Details critical warnings and notes for safe operation and installation.

2. Operating Principle of the Unit

4. Installation Example

5. Main Components

Model Specifications

Details the different models and their specifications of the air-to-water heat pump.

6. Installation Guideline of Monobloc Unit

6.1 Instruction to installation

Provides essential instructions and safety guidelines for unit installation.

6.2 Installation of monobloc unit

Covers the procedures and considerations for installing the monobloc unit.

6.2.4 Precautions on installation

Highlights critical precautions to be taken during the installation of the monobloc unit.

6.2.8 Safety operation of flammable refrigerant

Covers safety procedures and requirements for handling flammable refrigerants.

7. Installation of Hydraulic Unit

13. Optional Electric Heater

Optional electric heater installation

Covers the installation of optional electric heaters.

Electric wiring work

Provides the electrical wiring steps for optional electric heaters.

Wired controller setting

Details the controller settings for optional electric heaters.

15. Charging and Discharging of Refrigerant

Discharging and Notes

Procedures for refrigerant discharging, safety measures, and important notes.

16. Installation of Insulated Water Tank

16.5 Electric wiring work

Covers the electrical wiring aspects for water tank installation.

17. Wiring Diagram

17.2 Electric Wiring

Provides detailed information on the unit's electric wiring and diagrams.

18. Commissioning

18.1 Check before startup

Lists essential checks to be performed before starting the unit for the first time.

18.2 Test run

Describes the procedure for testing the unit's operation after installation and setup.

19. Daily Operation and Maintenance

Gree GRS-CQ10Pd/NhG-M Specifications

General IconGeneral
Cooling Capacity10.0 kW
EER3.21
SEER6.1
COP3.8
RefrigerantR32
Compressor TypeRotary
Power Supply220-240V, 50Hz

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