Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Gree Multi21+ Dual-Zone Mini Split Air Conditioner Heat Pump. Please read this manual thoroughly before installation and use, and retain it for future reference. Proper installation and adherence to these instructions are crucial for optimal performance and warranty validity.
Safety Information
Important: Installation must be performed by a state-licensed HVAC contractor to ensure safety and warranty eligibility. Failure to do so may void the warranty and pose safety risks.
- Always disconnect power before performing any maintenance or service.
- Do not attempt to repair or modify the unit yourself. Contact qualified service personnel.
- Ensure proper grounding to prevent electrical shock.
- Keep children and pets away from the unit during operation and maintenance.
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Product Overview
The Gree Multi21+ Dual-Zone system provides efficient heating and cooling for two separate zones using a single outdoor unit. It features G10 inverter technology for energy savings and stable room temperatures.
Key Features:
- Dual-Zone Capability: Heats and cools two zones simultaneously.
- G10 Inverter Technology: Enhances energy efficiency and maintains consistent temperatures.
- Eco-Friendly Refrigerant: Utilizes R410A refrigerant.
- Wi-Fi Capable: Optional Wi-Fi kit (sold separately) for remote control via smartphone.
- Special Features: Intelligent preheating, low voltage start-up, optimized airflow design, swing louver control.
Components:
The system consists of one outdoor condenser unit and two indoor wall-mounted units, along with remote controls for each indoor unit.
Image: Overview of the Gree Multi21+ Dual-Zone Mini Split system, showing two indoor wall-mounted units, two remote controls, and one outdoor condenser unit.
Image: A single Gree Multi21+ indoor wall-mounted unit with its corresponding remote control, displaying temperature and mode settings.
Image: Close-up view of the Gree Multi21+ remote control, showing various buttons for mode, fan speed, swing, sleep, timer, and temperature adjustment.
Setup and Installation
Professional Installation Required: This system requires professional installation by a state-licensed HVAC contractor. Attempting self-installation will void the warranty and may lead to improper operation or safety hazards.
Installation Requirements (Not Included):
- 1/4" x 3/8" line set
- 1/4" x 5/8" line set
- Appropriate electrical wiring (208/230V)
- Mounting hardware for indoor and outdoor units
Refer to the detailed installation guide provided with the physical product for specific instructions, diagrams, and safety precautions for your HVAC professional.
Operating Instructions
Each indoor unit is controlled by its dedicated wireless remote control. Ensure the remote has fresh batteries and is pointed towards the indoor unit for proper communication.
Basic Operation:
- Power On/Off: Press the POWER button to turn the unit on or off.
- Mode Selection: Press the MODE button to cycle through operating modes: Auto, Cool, Dry, Heat, Fan.
- Temperature Adjustment: Use the UP and DOWN arrow buttons to set the desired temperature.
- Fan Speed: Press the FAN button to adjust fan speed (Auto, Low, Medium, High).
- Swing Function: Press the SWING button to activate or deactivate the louver swing for even air distribution.
Advanced Functions:
- Sleep Mode: Press SLEEP for quiet operation and optimized temperature settings during sleep.
- Timer Function: Use TIMER ON/OFF to program the unit to turn on or off at specific times.
- I FEEL Function: Activates a sensor in the remote control to measure the temperature at its location, providing more precise comfort.
- Wi-Fi Control (Optional): If the Wi-Fi kit is installed, download the Gree+ app and follow the in-app instructions to connect and control your unit remotely.
Image: Illustrates the dual functionality of the Gree Multi21+ system, showing a room being cooled on one side and heated on the other, with a couple enjoying comfortable temperatures.
Image: A Gree Multi21+ indoor unit mounted on a wall in a living room, with a family seated on a couch, indicating comfortable indoor climate control.
Maintenance
Regular maintenance ensures optimal performance and longevity of your unit. Always disconnect power before cleaning or servicing.
Indoor Unit:
- Air Filter Cleaning: Clean the air filters every two weeks or more frequently depending on usage and air quality. Open the front panel, remove filters, wash with lukewarm water and mild detergent, rinse, dry completely, and reinsert.
- Surface Cleaning: Wipe the indoor unit's surface with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
Outdoor Unit:
- Coil Cleaning: Periodically inspect and clean the outdoor coil to remove dirt, leaves, and debris. This should ideally be done by a qualified technician.
- Clear Obstructions: Ensure the area around the outdoor unit is clear of plants, debris, and other obstructions to allow for proper airflow.
For detailed cleaning procedures and professional servicing, consult your HVAC contractor.
Troubleshooting
Before contacting service, review the following common issues and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Unit does not start | No power, remote control issues, timer set. | Check power supply, replace remote batteries, cancel timer settings. |
| Insufficient cooling/heating | Dirty air filters, blocked outdoor unit, wrong mode, low refrigerant. | Clean air filters, clear outdoor unit, select correct mode, contact technician for refrigerant check. |
| Unusual noise | Loose parts, fan obstruction, normal operating sounds (e.g., refrigerant flow). | Check for loose parts, remove obstructions. If persistent or loud, contact technician. |
| Water leakage from indoor unit | Clogged drain pipe, improper installation. | Contact HVAC technician for inspection and repair. |
If the problem persists after attempting these solutions, please contact a qualified HVAC technician for assistance.
Specifications
The following specifications apply to the Gree Multi21+ Dual-Zone Mini Split Air Conditioner Heat Pump, Model MULTI36CVIR202 (36,000 BTU / 9K, 18K).
| Feature | Detail |
|---|---|
| Model Number | MULTI36CVIR202 |
| Capacity | 36,000 BTU (Outdoor Unit) / 9,000 BTU & 18,000 BTU (Indoor Units) |
| Voltage | 208/230V |
| SEER (Seasonal Energy Efficiency Ratio) | 21.6 |
| Refrigerant | R410A |
| Product Dimensions (Outdoor Unit) | 42.5 x 43.9 x 18.9 inches |
| Item Weight (Outdoor Unit) | 198 pounds |
| Special Features | Intelligent preheating, Low voltage start-up, Optimized airflow design, Swing louver control |
| Wi-Fi Capable | Yes (Kit sold separately) |
Image: A table detailing the dimensions (W x H x D) for various BTU capacities of both indoor and outdoor units in the Vireo+ Multi series. For example, 9,000 BTU indoor units are 33" x 11" x 8", and 36,000 BTU outdoor units are 42.5" x 43.9" x 18.9".
Image: Icons representing key features and certifications: 5-year limited warranty, WiFi Ready, Heating & Cooling, AHRI Certified, G10 Inverter Technology, ETL Listed, and Energy Star (except 42k model).
Warranty and Support
Manufacturer's Warranty: The Gree Multi21+ system comes with a 5-year warranty on parts and a 7-year warranty on the compressor. This warranty is valid only if the installation is performed by a state-licensed HVAC contractor.
For warranty claims, technical support, or service inquiries, please contact your installing HVAC contractor or refer to the contact information provided in the product packaging or on the official Gree website.
Online Resources: For additional information, FAQs, or to locate a service provider, visit the official GREE Store on Amazon or the manufacturer's website.
