1. Sarrera
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 using the unit and retain it for future reference. Proper installation by a state-licensed HVAC contractor is required to ensure warranty validity and safe operation.
The Gree Multi21+ Dual-Zone VIREO 24,000 BTU System is designed to provide both heating and cooling for two separate zones without the need for distribution boxes. It features Gree's G10 inverter-driven compressor and utilizes eco-friendly R410A refrigerant.

Figure 1.1: Dual-zone cooling and heating capability.
2. Segurtasun informazioa
Beti jarraitu segurtasun neurri hauek unitateari lesioak edo kalteak saihesteko.
- Instalazio profesionala: Installation, maintenance, and repair must be performed by a qualified, state-licensed HVAC technician. Improper installation can lead to electric shock, fire, water leakage, or other hazards.
- Segurtasun elektrikoa: Ensure the power supply matches the unit's specifications. Do not operate the unit with wet hands. Disconnect power before any cleaning or maintenance.
- Hozgarria: The unit uses R410A refrigerant. Do not attempt to handle refrigerant yourself. Contact a qualified technician for any refrigerant-related issues.
- Likidazioak: Maintain adequate clearances around the indoor and outdoor units for proper airflow and service access.
- Haurrak eta maskotak: Mantendu haurrak eta maskotak unitatetik urrun, batez ere funtzionamenduan eta mantentze-lanetan zehar.
- Material sukoiak: Ez jarri material sukoiak edo aerosolak unitatearen ondoan.
3. Produktua amaitu daview
3.1 Osagaiak
The Gree Multi21+ system consists of:
- Kanpoko unitatea: The condenser unit responsible for heat exchange.
- Indoor Units (2): Wall-mounted units that deliver conditioned air to each zone.
- Urruneko kontrola: For convenient operation of the indoor units.

Figure 3.1: Indoor unit and remote control.
3.2 Ezaugarri nagusiak
- G10 Inbertsorearen Teknologia: Saves energy, reduces outdoor noise, and maintains stable room temperature by eliminating frequent starts and stops.
- Bi Eremu Gaitasuna: Heats and cools two separate areas independently.
- Hozgarri ekologikoa: R410A hozgarria erabiltzen du.
- Wi-Fi gaia: An optional field-installed Wi-Fi kit (sold separately) allows remote control via a smartphone.
- Diseinu trinkoa: Wall-mounted indoor units blend with various decors.

Figure 3.2: Product feature icons.
4. Konfigurazioa eta instalazioa
Garrantzitsua: Installation of this Gree Multi21+ system must be performed by a state-licensed HVAC contractor. Failure to do so will void the manufacturer's warranty and may result in unsafe operation.
4.1 Instalazioaren aurreko baldintzak
- Lerro multzoak: The system requires specific line sets, which are not included. You will need one 1/4" x 3/8" line set and one 1/4" x 1/2" line set.
- Hornidura elektrikoa: Ensure a dedicated 208/230V electrical circuit is available and properly sized for the unit.
- Muntatzeko kokapena: Select appropriate locations for both indoor and outdoor units, considering clearances, drainage, and structural support.
4.2 Wi-Fi Module Installation (Optional)
The unit is Wi-Fi capable. A field-installed Wi-Fi kit accessory is sold separately. Refer to the instructions provided with the Wi-Fi kit for installation and setup procedures. Once installed, this allows for remote control of the unit via a smartphone application.
5. Funtzionamendu-argibideak
The unit is primarily controlled using the wireless remote control. Ensure the remote has fresh batteries and is pointed towards the indoor unit when sending commands.
5.1 Urruneko kontrolaren funtzioak

Figure 5.1: Wireless Remote Control.
- ON/OFF botoia: Unitatea pizten edo itzaltzen du.
- MODE botoia: Funtzionamendu moduen artean txandakatzen da: Automatikoa, Hoztea, Lehortzea, Berotzea, Haizagailua.
- Tenperatura doitzeko botoiak (▲/▼): Ezarritako tenperatura igotzen edo jaisten du.
- FAN botoia: Haizagailuaren abiadura doitzen du (Automatikoa, Baxua, Ertaina, Altua).
- SWING botoia: Controls the louver's vertical swing direction.
- LO botoia: Activates sleep mode for energy-saving and quiet operation during sleep.
- TURBO botoia: Denbora labur batez hozte edo berotze azkarra aktibatzen du.
- ARGI botoia: Barneko unitatearen pantailaren argia piztu edo itzaltzen du.
- TIMER botoia: Sets the on/off timer.
5.2 Funtzionamendu moduak
- Cool modua: Gela hozteko. Ezarri nahi duzun tenperatura eta haizagailuaren abiadura.
- Bero modua: For heating the room. Set desired temperature and fan speed.
- Modu lehorra: Gelako hezetasuna murrizten du.
- Fan modua: Airea berotu edo hoztu gabe zirkulatzen du.
- Modu automatikoa: The unit automatically selects the operating mode (Cool, Heat, Fan) based on the room temperature and the set temperature.
6. Mantentzea
Regular maintenance ensures optimal performance and longevity of your unit. Always disconnect power before performing any maintenance.
6.1 Aire-iragazkiaren garbiketa
Clean the air filters every two weeks, or more frequently depending on usage and air quality.
- Ireki barruko unitatearen aurrealdeko panela.
- Kendu aire-iragazkiak.
- Clean filters with a vacuum cleaner or wash them with lukewarm water and mild detergent.
- Utzi iragazkiak guztiz lehortzen berriro instalatu aurretik.
- Itxi aurrealdeko panela modu seguruan.
6.2 Kanpoko Unitatearen Garbiketa
Periodically check the outdoor unit for debris, leaves, or obstructions around the coils and fan. Gently clean with a soft brush or vacuum. Do not spray water directly onto electrical components.
6.3 Zerbitzu profesionala
It is recommended to have a qualified HVAC technician perform an annual inspection and professional cleaning of the entire system.
7. Arazoak
Zerbitzuarekin harremanetan jarri aurretik, berriroview honako arazo eta irtenbide ohikoenak.
| Arazoa | Kausa posiblea | Irtenbidea |
|---|---|---|
| Unitateak ez du funtzionatzen | Ez dago elikadura hornidurarik Remote control batteries low Tenporizadore funtzioa aktibo | Egiaztatu etengailua Ordeztu bateriak Utzi tenporizadorearen ezarpena |
| Hozte/berotze nahikoa ez | Dirty air filters Leihoak/ateak irekita Tenperaturaren ezarpena okerra Outdoor unit obstructed | Garbitu aire-iragazkiak Itxi leihoak/ateak Egokitu tenperatura Garbitu oztopoak |
| Ezohiko zarata | Pieza solteak Haizagailuaren oztopoa | Contact HVAC technician Check for obstructions (after disconnecting power) |
| Barruko unitatetik ur-ihesa | Clogged drain pipe Instalazio desegokia | Contact HVAC technician |
Irtenbide hauek saiatu ondoren arazoa konpontzen ez bada, jarri harremanetan HVAC teknikari kualifikatu batekin laguntza eskatzeko.
8. Zehaztapenak
Key technical specifications for the Gree Multi21+ Dual-Zone Mini Split System (Model: MULTI24CVIR201).
- Marka: GREE
- Ereduaren izena: MULTI24CVIR201 4000
- Modelo zenbakia: MULTI24CVIR201
- Edukiera: 2 tona (24,000 BTU)
- Hozte-potentzia: 24,000 Britainia Handiko Unitate Termikoak
- Energia-eraginkortasun sasoikoaren ratioa (SEER): 21.2
- liburukiatage: 230 Volt
- Zarata maila: 56 Decibels (Outdoor Unit)
- Hozgarria: R 410A
- Forma-faktorea: Mini-Split
- Inbertsore mota: Has Inverter (G10 Inverter Technology)
- Instalazio mota: Zatiketa Sistema
- Konpresore mota: Rotary Scroll
- Outdoor Unit Required: Bai
- Kontrol-metodoa: Urruneko Kontrola
- UPC: 841999166618
- GTIN: 841999166618
8.1 Unitate-neurriak

Figure 8.1: Vireo+ Multi Indoor and Outdoor Unit Measurements.
9. Bermearen informazioa
The manufacturer's warranty terms for this Gree Multi21+ system are:
- Atalak: 5 urteko berme mugatua
- Konpresorea: 7 urteko berme mugatua
Ohar garrantzitsua: To be eligible for the warranty, installation must be performed by a state-licensed HVAC contractor. Any damage or malfunction resulting from improper installation or unauthorized service will void the warranty.
10. Laguntza
For technical assistance, warranty claims, or service inquiries, please contact your installing HVAC contractor or the Gree customer support directly. Ensure you have your model number (MULTI24CVIR201) and purchase date available when contacting support.
For additional resources and product information, you may visit the official GREE website or consult the documentation provided by your installer.