1. Product Overview
The Gree SAPPHIRE 18,000 BTU 24.5 SEER Wall Mount Ductless Mini Split Air Conditioner Heat Pump is designed to provide efficient heating and cooling for residential and commercial spaces. This system features quiet operation, advanced performance, and smart control capabilities via Wi-Fi.
Figure 1: Overview of the Gree SAPPHIRE Mini Split system, showing the indoor wall-mounted unit, the outdoor condenser unit, and the wireless remote control.
2. Safety Information
Please read all safety instructions carefully before installation and operation to prevent injury or damage. Keep this manual for future reference.
- Professional Installation: Installation, maintenance, and repair must be performed by qualified service personnel.
- Electrical Safety: Ensure the unit is properly grounded. Do not operate with wet hands. Disconnect power before servicing.
- Refrigerant: This unit uses R410A refrigerant. Handle with care and ensure proper ventilation during installation and servicing.
- Clearances: Maintain adequate clearances around both indoor and outdoor units for proper airflow and service access.
- Children and Pets: Keep children and pets away from the unit during operation and maintenance.
3. System Components
The Gree SAPPHIRE Mini Split system consists of the following main components:
- Indoor Unit: Wall-mounted unit that delivers conditioned air.
- Outdoor Unit (Condenser): Houses the compressor and heat exchanger.
- Wireless Remote Control: For convenient operation and setting adjustments.
- Installation Kit (Sold Separately): Includes line set, communication cable, and drain hose.
Figure 2: Indoor Unit
Figure 3: Outdoor Unit
Figure 4: Wireless Remote Control
4. Setup and Installation
Installation of this mini-split system requires specialized tools and knowledge. It is strongly recommended that installation be performed by a certified HVAC technician.
4.1 Pre-Installation Considerations
- Location: Select appropriate locations for both indoor and outdoor units, ensuring proper clearances and structural support.
- Electrical Requirements: The unit operates on 208/230V. Ensure dedicated electrical circuits meet the system's requirements.
- Line Set: A 1/4" x 5/8" line set is required (not included).
- Drain Hose: A drain hose is required for condensate removal. The included hose may be short, requiring an extension (e.g., 5/8" ID drain hose).
- Communication Cable: A 4-conductor, 14-gauge cable is needed to connect indoor and outdoor units.
- Power Cable: A 3-conductor, 12-gauge cable is needed for the outdoor unit to the electrical switch box.
4.2 Key Installation Steps (Overview for Technician)
- Mount the indoor unit securely on the wall.
- Install the outdoor unit on a stable, level surface.
- Connect the refrigerant line set between the indoor and outdoor units. Ensure proper flaring and torqueing of connections.
- Connect electrical wiring for power and communication.
- Install the condensate drain line, ensuring proper slope for drainage.
- Vacuuming the Line Set: This critical step removes moisture and non-condensable gases. A digital gauge is recommended for accurate vacuum levels (below 400 microns). Water in the system can lead to acid formation and system failure.
- Leak test all connections.
- Release refrigerant into the system.
- Test run the system in all modes.
5. Operating Instructions
The Gree SAPPHIRE system can be operated using the wireless remote control or via the Gree+ app on your smartphone.
5.1 Remote Control Operation
The remote control allows you to adjust temperature, select operating modes, set fan speed, and access other functions. Refer to the remote control diagram (Figure 4) for button identification.
- ON/OFF Button: Powers the unit on or off.
- MODE Button: Cycles through operating modes: Auto, Cool, Heat, Dry, Fan.
- TEMP +/- Buttons: Adjust the desired temperature.
- FAN Button: Selects fan speed (Auto, Low, Medium, High).
- SLEEP Mode: Adjusts temperature automatically for comfortable sleep and energy saving.
- TIMER ON/OFF: Sets a timer for the unit to turn on or off.
- I FEEL Function: Activates a sensor in the remote to measure ambient temperature, providing more precise comfort.
5.2 Wi-Fi Control (Gree+ App)
The Gree SAPPHIRE features universal Wi-Fi connectivity. Download the Gree+ app from your smartphone's app store to control the unit remotely. Follow the in-app instructions for pairing your device with the air conditioner.
- Ensure your home Wi-Fi network is active and stable.
- The app allows for remote temperature adjustment, mode selection, scheduling, and monitoring.
- Note: Some users have reported initial setup challenges with Wi-Fi connectivity. Ensure the app is updated to the latest version.
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your Gree SAPPHIRE system. Always disconnect power before performing any maintenance.
6.1 Air Filter Cleaning
- The indoor unit's air filters should be cleaned every 2-4 weeks, or more frequently depending on usage and air quality.
- Open the front panel of the indoor unit and remove the filters.
- Clean filters with a vacuum cleaner or wash them with lukewarm water. Allow them to dry completely before reinserting.
- Do not operate the unit without filters.
6.2 Outdoor Unit Cleaning
- Periodically clear any debris (leaves, dirt) from around the outdoor unit to ensure proper airflow.
- Gently clean the outdoor coil fins with a soft brush or water hose. Avoid bending the fins.
6.3 Professional Inspection
It is recommended to have a qualified HVAC technician perform an annual inspection and professional cleaning of the entire system.
7. Troubleshooting
Before contacting service, review the following common issues and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not turn on. | No power, circuit breaker tripped, remote batteries dead. | Check power supply, reset breaker, replace remote batteries. |
| Insufficient cooling/heating. | Dirty air filters, blocked outdoor unit, wrong mode selected, low refrigerant. | Clean filters, clear obstructions, select correct mode, contact technician for refrigerant check. |
| Unusual noise. | Loose parts, foreign objects, refrigerant flow noise (normal). | Check for loose components, remove obstructions. If persistent or loud, contact technician. |
| Wi-Fi connectivity issues. | Incorrect app settings, network interference, outdated app. | Ensure correct Wi-Fi password, restart router, update Gree+ app, refer to app's troubleshooting guide. |
If the problem persists after attempting these solutions, please contact a qualified service technician.
8. Specifications
Key technical specifications for the Gree SAPPHIRE 18,000 BTU Mini Split system:
- Model: SAPPHIRE 18000 (SAP18HP230V1A)
- Cooling Capacity: 18,000 BTU
- Heating Capacity: (Implicitly covered by Heat Pump function)
- SEER (Seasonal Energy Efficiency Ratio): 24.5
- EER (Energy Efficiency Ratio): 13.5
- Voltage: 208/230 Volts
- Refrigerant: R410A
- Noise Level (Outdoor): 56 dB
- Room Size Coverage: 600 - 1,000 sq ft
- Special Features: Air Purification Filter, Universal Wi-Fi, ULTRA Heating (down to -22°F)
- Dimensions (Indoor Unit): Approximately 10 x 29 x 11 inches
- Item Weight: 40 pounds (Indoor Unit)
Figure 5: Key features and certifications of the Gree SAPPHIRE system.
9. Warranty and Support
Gree provides a limited warranty for its products. For the SAPPHIRE series, a 5-year limited parts warranty is typically offered. Please refer to your specific warranty documentation provided with the product for full terms and conditions, including labor coverage and registration requirements.
For technical support, warranty claims, or service inquiries, please contact your authorized Gree dealer or visit the official Gree website for contact information.
