1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your GREE GRH085DA Rooftop Air Conditioner. Please read this manual thoroughly before installation and use, and retain it for future reference.
2. Safety Information
Always observe the following safety precautions to reduce the risk of electric shock, injury, or fire:
- Installation must be performed by a qualified professional in accordance with all local and national electrical and building codes.
- Ensure the power supply is disconnected before performing any maintenance or cleaning.
- Do not operate the unit with wet hands or when standing in water.
- Keep children and pets away from the unit during operation.
- Do not block air inlets or outlets.
- Use only the specified refrigerant (R410A).
3. Product Features
The GREE GRH085DA Rooftop Air Conditioner offers a range of features designed for comfort and convenience:
- Integrated LED lighting.
- Suitable for vehicles up to 8 meters in length.
- Integrated ceiling light for interior illumination.
- Efficient two-way air distribution for optimal cooling/heating.
- Multiple operating modes: Auto, Cooling, Heating, Dehumidification, and Fan.
- Programmable Timer OFF & ON function.
- Sleep Mode for quiet and energy-efficient overnight operation.
- Temperature adjustment via touch screen controls or remote control.
4. Technical Specifications
| Parameter | Value |
|---|---|
| Cooling Power | 2.5 kW |
| Heating Power | 2.2 kW |
| Power Supply | 1/220-240/50 Ph,V, Hz |
| Cooling Power Consumption | 1070 W |
| Heating Power Consumption | 980 W |
| Rated Power | 1400 W |
| Rated Cooling Current | 6.6 A |
| Rated Heating Current | 6 A |
| Adjustable Temperature Range | 16 to 30 °C |
| Operating Temperature Range | 2-43 °C |
| Refrigerant | R410A |
| Global Warming Potential (GWP) | 2088 |
| Roof Opening (Standard) | 356 x 356 mm |
| Roof Opening (with Adapter) | 400 x 400 mm |
| Roof Thickness | 30-80 mm |
| Indoor Unit Sound Pressure (SH/H/M/L) | 54/48/43/35 dB(A) |
| Indoor Unit Dimensions (L x W x H) | 610 x 485 x 49 mm |
| Indoor Unit Net/Gross Weight | 2.7/4 kg |
| Outdoor Unit Sound Pressure | 65/55 dB(A) |
| Outdoor Unit Dimensions (L x W x H) | 1018 x 650 x 259 mm |
| Outdoor Unit Net/Gross Weight | 42.5/49 kg |
5. Package Contents
Verify that all items are present in the package:
- 1x Indoor Unit
- 1x Outdoor Unit
- 1x Remote Control
- 1x Mounting Material Set (including adapter for 400x400mm roof opening)
6. Setup and Installation
Installation of the GREE GRH085DA Rooftop Air Conditioner requires technical expertise and should be performed by a qualified professional. Incorrect installation can lead to property damage, injury, or void the warranty.
6.1. Pre-Installation Checks
- Ensure the vehicle roof can support the weight of the outdoor unit (approx. 42.5 kg net).
- Verify the roof thickness is between 30-80 mm.
- Confirm the existing roof opening is 356 x 356 mm. An adapter is included for 400 x 400 mm openings.
6.2. Installation Steps (Overview)
- Prepare the roof opening according to the specified dimensions.
- Mount the outdoor unit securely on the roof.
- Install the indoor unit from inside the vehicle, aligning it with the outdoor unit.
- Connect the electrical wiring according to the wiring diagram (not provided in this manual, refer to professional installation guide).
- Ensure all connections are sealed to prevent water ingress.
- Perform a functional test of the unit.

Figure 1: Top-down view of the GREE GRH085DA outdoor unit, showing its sleek, aerodynamic design and the GREE logo.

Figure 2: Angled view of the GREE GRH085DA outdoor unit, highlighting its compact form factor suitable for RV rooftops.

Figure 3: Side profile of the GREE GRH085DA outdoor unit, illustrating its low-profile design.

Figure 4: Top view of the GREE GRH085DA outdoor unit, showing the product label with technical details.

Figure 5: Front view of the GREE GRH085DA outdoor unit, featuring the prominent GREE logo and air intake grille.

Figure 6: Angled view of the GREE GRH085DA indoor unit, displaying the integrated control panel with touch buttons.

Figure 7: Top view of the GREE GRH085DA indoor unit, showing the control interface and air vents. The label 'Innengerät' indicates 'Indoor Unit'.

Figure 8: The adapter included with the GREE GRH085DA, used to fit the unit into a 400x400mm roof opening. The label 'Adapter' confirms its function.
7. Operating Instructions
The GREE GRH085DA can be operated using the integrated touch screen controls on the indoor unit or the provided remote control.
7.1. Basic Operation
- Power On/Off: Press the power button on the control panel or remote control.
- Mode Selection: Use the 'Mode' button to cycle through Auto, Cooling, Heating, Dehumidification, and Fan modes.
- Temperature Adjustment: Use the '+' and '-' buttons to set your desired temperature between 16°C and 30°C.
- Fan Speed: In Fan mode, adjust the fan speed (Low, Medium, High, Super High) using the fan speed button.
7.2. Advanced Functions
- Timer Function: Set the unit to automatically turn ON or OFF after a specified period. Refer to the remote control manual for detailed timer settings.
- Sleep Mode: Activate Sleep Mode for reduced noise and energy consumption during nighttime hours. The temperature may adjust slightly to optimize comfort.
8. Maintenance
Regular maintenance ensures optimal performance and longevity of your air conditioner.
8.1. Filter Cleaning
- The indoor unit contains air filters that should be cleaned regularly (e.g., every 2-4 weeks, depending on usage).
- Carefully open the indoor unit's front panel.
- Remove the air filters and clean them with a vacuum cleaner or wash them with lukewarm water and mild detergent.
- Allow filters to dry completely before reinserting them.
8.2. Exterior Cleaning
- Wipe the exterior surfaces of both indoor and outdoor units with a soft, damp cloth.
- Do not use harsh chemicals, abrasives, or solvents.
8.3. Professional Inspection
- It is recommended to have the unit inspected by a qualified technician annually to check refrigerant levels, electrical connections, and overall system health.
9. Troubleshooting
If you encounter issues with your GREE GRH085DA, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on | No power supply; Remote control batteries depleted | Check power connection and circuit breaker; Replace remote control batteries |
| Insufficient cooling/heating | Dirty air filters; Blocked air inlets/outlets; Incorrect temperature setting; Low refrigerant | Clean air filters; Clear obstructions; Adjust temperature; Contact a professional for refrigerant check |
| Unusual noise | Loose parts; Foreign object in fan; Unit not level | Check for loose components; Inspect for foreign objects; Ensure unit is level; If noise persists, contact service |
| Water leakage | Blocked drain hose; Improper installation | Check and clear drain hose; Contact a professional to inspect installation |
If the problem persists after attempting these solutions, please contact a qualified service technician.
10. Warranty and Support
Specific warranty details are not provided in the product information. For warranty claims, technical support, or service inquiries, please contact your GREE product retailer or the official GREE customer service in your region. Keep your purchase receipt as proof of purchase.







