1. Introduzzjoni
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. Informazzjoni dwar is-Sigurtà
Dejjem segwi l-prekawzjonijiet ta' sigurtà li ġejjin biex tevita korriment jew ħsara lill-unità.
- Installazzjoni professjonali: 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.
- Sigurtà Elettrika: Ensure the power supply matches the unit's specifications. Do not operate the unit with wet hands. Disconnect power before any cleaning or maintenance.
- Refriġerant: The unit uses R410A refrigerant. Do not attempt to handle refrigerant yourself. Contact a qualified technician for any refrigerant-related issues.
- Approvazzjonijiet: Maintain adequate clearances around the indoor and outdoor units for proper airflow and service access.
- Tfal u Pets: Żomm it-tfal u l-annimali domestiċi 'l bogħod mill-unità, speċjalment waqt it-tħaddim u l-manutenzjoni.
- Materjali li jaqbdu: Tpoġġix materjali fjammabbli jew tisprejjax aerosols ħdejn l-unità.
3. Prodott Aktarview
3.1 Komponenti
The Gree Multi21+ system consists of:
- Unità ta 'barra: The condenser unit responsible for heat exchange.
- Indoor Units (2): Wall-mounted units that deliver conditioned air to each zone.
- Kontroll mill-bogħod: For convenient operation of the indoor units.

Figure 3.1: Indoor unit and remote control.
3.2 Karatteristiċi ewlenin
- Teknoloġija tal-Inverter G10: Saves energy, reduces outdoor noise, and maintains stable room temperature by eliminating frequent starts and stops.
- Kapaċità ta' Żona Doppja: Heats and cools two separate areas independently.
- Refriġerant li ma jagħmilx ħsara lill-ambjent: Juża r-refriġerant R410A.
- Kapaċi għall-Wi-Fi: An optional field-installed Wi-Fi kit (sold separately) allows remote control via a smartphone.
- Disinn kompatt: Wall-mounted indoor units blend with various decors.

Figure 3.2: Product feature icons.
4. Setup u Installazzjoni
Importanti: 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 Rekwiżiti ta' Qabel l-Installazzjoni
- Line Sets: 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.
- Provvista Elettrika: Ensure a dedicated 208/230V electrical circuit is available and properly sized for the unit.
- Post tal-Immuntar: 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. Istruzzjonijiet Operattivi
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 Funzjonijiet ta' Kontroll mill-bogħod

Figure 5.1: Wireless Remote Control.
- Buttuna ON/OFF: Jixgħel jew jitfi l-unità.
- Buttuna MODE: Jaqleb bejn il-modi operattivi: Auto, Kessaħ, Nixxef, Sħana, Fann.
- Temperature Adjustment Buttons (▲/▼): Iżżid jew tnaqqas it-temperatura ssettjata.
- Buttuna FAN: Jaġġusta l-veloċità tal-fann (Awtomatika, Baxxa, Medja, Għolja).
- Buttuna SWING: Controls the louver's vertical swing direction.
- Buttuna SLEEP: Activates sleep mode for energy-saving and quiet operation during sleep.
- Buttuna TURBO: Jattiva tkessiħ jew tisħin rapidu għal perjodu qasir.
- Buttuna DAWL: Jixgħel jew jitfi d-dawl tal-wiri tal-unità ta' ġewwa.
- Buttuna TIMER: Jissettja t-tajmer mixgħul/mitfi.
5.2 Modi Operattivi
- Modalità Kessaħ: Għat-tkessiħ tal-kamra. Issettja t-temperatura mixtieqa u l-veloċità tal-fann.
- Modalità tas-Sħana: Għat-tisħin tal-kamra. Issettja t-temperatura mixtieqa u l-veloċità tal-fann.
- Modalità Niexfa: Inaqqas l-umdità fil-kamra.
- Modalità Fan: Jiċċirkola l-arja mingħajr ma jsaħħan jew ikessaħ.
- Modalità Awtomatika: The unit automatically selects the operating mode (Cool, Heat, Fan) based on the room temperature and the set temperature.
6. Manutenzjoni
Regular maintenance ensures optimal performance and longevity of your unit. Always disconnect power before performing any maintenance.
6.1 Tindif tal-Filtru tal-Arja
Clean the air filters every two weeks, or more frequently depending on usage and air quality.
- Iftaħ il-pannell ta 'quddiem tal-unità ta' ġewwa.
- Neħħi l-filtri tal-arja.
- Naddaf il-filtri b'vacuum cleaner jew aħsilhom b'ilma fietel u deterġent ħafif.
- Ħalli l-filtri jinxfu kompletament qabel ma terġa' tinstallahom.
- Agħlaq il-pannell ta 'quddiem sew.
6.2 Tindif tal-Unità ta' Barra
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 Servizz Professjonali
It is recommended to have a qualified HVAC technician perform an annual inspection and professional cleaning of the entire system.
7 Issolvi l-problemi
Qabel ma tikkuntattja lis-servizz, erġa'view il-kwistjonijiet u s-soluzzjonijiet komuni li ġejjin.
| Problema | Kawża Possibbli | Soluzzjoni |
|---|---|---|
| L-unità ma toperax | Ebda provvista ta 'enerġija Batteriji tal-kontroll remot baxxi Funzjoni tat-tajmer attiva | Iċċekkja circuit breaker Ibdel il-batteriji Ikkanċella l-issettjar tat-tajmer |
| Tkessiħ/tisħin insuffiċjenti | Filtri tal-arja maħmuġin Twieqi/bibien miftuħa Issettjar tat-temperatura mhux korrett Unità ta' barra mblukkata | Filtri tal-arja nadif Agħlaq twieqi/bibien Aġġusta t-temperatura Ostruzzjonijiet ċari |
| Ħoss mhux tas-soltu | Partijiet sfużi Ostruzzjoni tal-fann | Contact HVAC technician Check for obstructions (after disconnecting power) |
| Tnixxija ta' ilma mill-unità ta' ġewwa | Clogged drain pipe Installazzjoni mhux xierqa | Contact HVAC technician |
If the problem persists after attempting these solutions, please contact a qualified HVAC technician for assistance.
8. Speċifikazzjonijiet
Key technical specifications for the Gree Multi21+ Dual-Zone Mini Split System (Model: MULTI24CVIR201).
- Ditta: GREE
- Isem tal-Mudell: MULTI24CVIR201 4000
- Numru tal-Mudell: MULTI24CVIR201
- Kapaċità: 2 Tunnellati (24,000 BTU)
- Qawwa tat-tkessiħ: 24,000 Unità Termali Brittaniċi
- Proporzjon tal-Effiċjenza Enerġetika Staġjonali (SEER): 21.2
- Voltage: 230 Volts
- Livell ta' Storbju: 56 Decibels (Outdoor Unit)
- Refriġerant: R 410A
- Fattur tal-Formola: Mini-Split
- Tip ta' inverter: Has Inverter (G10 Inverter Technology)
- Tip ta' Installazzjoni: Sistema maqsuma
- Tip ta' kompressur: Skrolljar Rotatorju
- Outdoor Unit Required: Iva
- Metodu ta' Kontroll: Kontroll mill-bogħod
- UPC: 841999166618
- GTIN: 841999166618
8.1 Dimensjonijiet tal-Unità

Figure 8.1: Vireo+ Multi Indoor and Outdoor Unit Measurements.
9. Informazzjoni dwar Garanzija
The manufacturer's warranty terms for this Gree Multi21+ system are:
- Partijiet: Garanzija Limitata ta' Sena
- Kompressur: Garanzija Limitata ta' Sena
Nota Importanti: 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. Appoġġ
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.