1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your GREE GRH120DA Rooftop Air Conditioner. Please read this manual thoroughly before installation and use, and retain it for future reference.
The GREE GRH120DA is designed to provide cooling and heating for recreational vehicles (RVs) and caravans up to 8 meters in length, ensuring a comfortable indoor climate.
2. Safety Instructions
WARNING: Failure to follow these safety instructions could result in electric shock, fire, serious injury, or death.
- Installation must be performed by qualified personnel in accordance with all local and national electrical codes.
- Ensure the power supply is disconnected before performing any installation, 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 and maintenance.
- Do not block air inlets or outlets. Restricted airflow can lead to overheating and reduced performance.
- Use only specified refrigerant R410A. Any other refrigerant may cause damage or injury.
- Ensure the vehicle's roof structure can support the weight of the unit.
3. Package Contents
Verify that all components are present and undamaged upon unpacking:
- 1 x Outdoor Unit (Rooftop Air Conditioner)
- 1 x Indoor Unit (Air Distribution Box)
- 1 x Remote Control (requires 2 AA batteries, included)
- 1 x Mounting Hardware Kit
- 1 x Adapter for 400x400mm Roof Opening
4. Product Overview
Familiarize yourself with the components of your GREE GRH120DA air conditioner.
Figure 4.1: GREE GRH120DA Rooftop Air Conditioner Outdoor Unit. This image shows the complete outdoor unit, which is installed on the roof of the RV or caravan.
Figure 4.2: Top view of the GREE GRH120DA Outdoor Unit. This perspective highlights the sleek design and GREE branding on the top surface of the unit.
Figure 4.3: Side view of the GREE GRH120DA Outdoor Unit. This image displays the profile of the unit, showing the air vents along the side.
Figure 4.4: Front view of the GREE GRH120DA Outdoor Unit. This view shows the front grille and the GREE logo, indicating the primary air intake or exhaust area.
Figure 4.5: GREE GRH120DA Indoor Unit. This is the air distribution box installed inside the RV, featuring touch controls and integrated LED lighting.
Figure 4.6: Adapter for 400x400mm roof opening. This accessory allows the unit to be installed in larger roof cutouts than the standard size.
5. Setup and Installation
The GREE GRH120DA is designed for easy installation on the roof of your RV or caravan. It is suitable for vehicles up to 8 meters in length.
5.1 Roof Opening Requirements
- Standard Opening: 356 x 356 mm
- With Adapter: Compatible with 400 x 400 mm openings (adapter included in package).
- Roof Thickness: The unit accommodates roof thicknesses between 30 mm and 80 mm.
5.2 General Installation Steps (Summary)
For detailed installation instructions, refer to the separate installation guide provided with your product. This summary provides an overview:
- Prepare the Roof: Ensure the roof area is clean, flat, and structurally sound to support the unit's weight. Cut the roof opening to the required dimensions.
- Mount the Outdoor Unit: Carefully lift and position the outdoor unit over the roof opening. Ensure proper sealing to prevent water ingress.
- Install the Indoor Unit: From inside the vehicle, attach the indoor air distribution box to the outdoor unit through the roof opening. Secure it using the provided mounting hardware.
- Electrical Connection: Connect the unit to the vehicle's electrical system. This step requires professional expertise to ensure correct wiring and grounding.
- Test Operation: Once installed, power on the unit and test all functions to ensure proper operation.
6. Operating Instructions
The GREE GRH120DA offers various operating modes and features for optimal climate control. Control can be done via the integrated touch screen on the indoor unit or the remote control.
6.1 Available Operating Modes
- Auto Mode: The unit automatically selects cooling, heating, or fan-only operation based on the set temperature and current room temperature.
- Cooling Mode: Provides cooling to lower the indoor temperature.
- Heating Mode: Provides heating to raise the indoor temperature.
- Dehumidification Mode: Reduces humidity in the air without significant temperature change.
- Fan Mode: Circulates air without cooling or heating. Fan speed can typically be adjusted.
6.2 Temperature Setting
The adjustable temperature range is from 16 °C to 30 °C. Use the '+' and '-' buttons on the touch screen or remote control to set your desired temperature.
6.3 Timer Function
The unit features an ON/OFF timer. This allows you to program the air conditioner to turn on or off automatically at a specified time.
6.4 Sleep Mode
Activate Sleep Mode for quieter operation and optimized temperature control during nighttime hours, promoting a comfortable sleeping environment.
6.5 Integrated LED Lighting
The indoor unit includes integrated LED lighting. Refer to the remote control or touch screen interface for controls to turn the light on/off or adjust brightness if applicable.
7. Maintenance
Regular maintenance ensures optimal performance and extends the lifespan of your air conditioner. Always disconnect power before performing any maintenance.
7.1 Cleaning Air Filters
- The indoor unit contains air filters that should be cleaned regularly (e.g., monthly, or more frequently with heavy use).
- Open the indoor unit cover, remove the filters, and clean them with a vacuum cleaner or wash them with lukewarm water.
- Allow filters to dry completely before reinserting them.
7.2 Exterior Cleaning
Wipe the exterior surfaces of both indoor and outdoor units with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
7.3 Seasonal Checks
Before and after periods of extended storage, inspect the unit for any visible damage, loose connections, or blockages in the air vents.
8. Troubleshooting
If you encounter issues with your air conditioner, refer to the following common problems and solutions before contacting service personnel.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on | No power supply; Remote control batteries depleted; Unit in standby mode. | Check power connection and circuit breaker; Replace remote control batteries; Press power button on unit or remote. |
| Insufficient cooling/heating | Dirty air filters; Blocked air vents; Incorrect mode selected; Temperature setting too high/low. | Clean air filters; Clear obstructions from vents; Select appropriate mode (Cooling/Heating); Adjust temperature setting. |
| Unusual noise | Loose components; Debris in fan; Unit not level. | Check for loose screws or panels; Inspect fan for foreign objects (disconnect power first); Ensure unit is installed level. |
| Water leakage | Blocked condensate drain; Improper installation/sealing. | Clear condensate drain; Re-check installation and sealing (professional assistance recommended). |
If the problem persists after attempting these solutions, please contact a qualified service technician.
9. Technical Specifications
| Feature | Specification |
|---|---|
| Model Number | GRH120DA |
| Cooling Capacity | 3.5 kW (3500 Watts) |
| Heating Capacity | 3.2 kW |
| Power Supply | 1/220-240/50 Ph,V, Hz |
| Cooling Input Power | 1270 W |
| Heating Input Power | 1180 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 to 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) | 55/49/44/36 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 |
| Seasonal Energy Efficiency Ratio (SEER) | 2.7 |
10. Warranty and Support
For warranty information, please refer to the warranty card included with your product packaging or visit the official GREE website. Keep your purchase receipt as proof of purchase for any warranty claims.
For technical support, service inquiries, or to locate authorized service centers, please consult the contact information provided in your product documentation or on the GREE official website.
