1. Introducció
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your Gree Multi21+ Dual-Zone Concealed Duct Mini Split Air Conditioner Heat Pump. Please read this manual thoroughly before installation and use, and retain it for future reference.
1.1. Producte acabatview
The Gree Multi21+ Dual-Zone Concealed Duct Mini Split System is an advanced heating and cooling solution designed for residential and light commercial applications. It features two indoor concealed duct units connected to a single outdoor heat pump unit, allowing for independent temperature control in two distinct zones. The system utilizes Gree's G10 inverter technology for energy efficiency and R410A refrigerant.
1.2. Característiques clau
- Confort de dues zones: Independently control heating and cooling in two separate areas.
- Concealed Duct Design: Indoor units are hidden above ceilings or within closets, delivering conditioned air through ductwork and grilles for discreet integration.
- G10 Inverter Technology: Provides energy savings, reduced outdoor noise, and stable room temperatures by eliminating frequent compressor starts and stops.
- Alta eficiència: SEER 21 rating for energy-efficient operation.
- Heat Pump Functionality: Ofereix capacitats de refrigeració i calefacció.
- Refrigerant ecològic: Uses R410A, a non-ozone-depleting refrigerant.
- Air Purification Filter: Enhances indoor air quality.
Image: Icons representing key features including 5-year parts warranty, R410A refrigerant, heating & cooling, ETL listed, G10 Inverter Technology, AHRI Certified, and Energy Star rating.
2. Informació de seguretat
Please observe the following safety precautions to prevent personal injury, property damage, or product malfunction. Improper operation due to ignoring instructions may cause harm or damage.
- Instal·lació professional: Installation, maintenance, and repairs must be performed by a qualified, licensed HVAC technician. Incorrect installation can lead to electric shock, fire, water leakage, or other hazards.
- Seguretat elèctrica: Ensure the unit is connected to a dedicated power circuit with appropriate voltage (208/230V) and proper grounding. Do not operate with wet hands.
- Manipulació de refrigerants: The system contains R410A refrigerant. Only qualified personnel should handle refrigerant.
- Liquidacions: Maintain adequate clearances around the outdoor unit for proper airflow and service access.
- Nens i animals de companyia: Keep children and pets away from the outdoor unit and ensure indoor units are inaccessible to prevent tamperrant.
- Ventilació: Do not block air inlets or outlets of either indoor or outdoor units.
3. Components del producte
Your Gree Multi21+ system includes the following main components:
- Unitat exterior: The main heat pump unit responsible for compressing refrigerant and exchanging heat with the outdoor air.
- Indoor Concealed Duct Units (x2): These units are installed within ceilings or walls and distribute conditioned air through ductwork.
- Wired Thermostats/Controllers (x2): For controlling each indoor unit.
- Wireless Remote Controls (x2): For convenient operation of each indoor unit.
Imatge: Un cop mésview of the Gree Multi21+ system components, showing the outdoor unit, two concealed duct indoor units, and two wired/wireless controllers.
Imatge: Una imatge detallada view of one of the Gree concealed duct indoor units, designed for hidden installation within a ceiling or wall cavity.
Image: A close-up of the Gree outdoor heat pump unit, featuring the fan grille and GREE branding.
4. Configuració i instal·lació
Important: Installation of this Gree Multi21+ system must be performed by a state-licensed HVAC contractor. Improper installation will void the warranty and can lead to serious safety hazards.
4.1. Comprovacions prèvies a la instal·lació
- Verify that the power supply matches the unit's requirements (208/230V).
- Ensure sufficient space and structural support for both indoor and outdoor units.
- Confirm availability of required accessories, including 1/4" x 3/8" line sets (x2).
4.2. Instal·lació acabadaview (For Licensed Professionals)
- Col·locació de la unitat exterior: Select a location with adequate airflow, away from obstructions, and on a stable, level surface.
- Col·locació de la unitat interior: Install concealed duct units in ceiling or wall cavities, ensuring proper drainage and ductwork connections.
- Refrigerant Line Set Connection: Connect the refrigerant lines between the outdoor unit and each indoor unit. Ensure proper flaring and torque.
- Cablejat elèctric: Connect power and communication wiring according to the wiring diagram provided with the unit.
- Aspirar i carregar: Evacuate the refrigerant lines to remove air and moisture, then charge the system with R410A refrigerant as specified.
- Ductwork and Grille Installation: Connect ductwork to the indoor units and install supply and return air grilles in the conditioned spaces.
- Prova d'execució: Perform a test run to verify proper operation, check for leaks, and confirm temperature control.
5. Instruccions de funcionament
Your Gree Multi21+ system offers flexible control over two independent zones. Each indoor unit is controlled by its dedicated wired or wireless controller.
5.1. Funcionament bàsic
- Encès/apagat: Premeu el botó ON/OFF button on the controller to start or stop the unit.
- Selecció del mode: Utilitza el MODE botó per alternar entre els modes de funcionament:
- Genial: Per refrescar l'habitació.
- Calor: Per escalfar l'habitació.
- Seca: Per a la deshumidificació.
- Ventilador: For air circulation only.
- Automàtic: The unit automatically selects the appropriate mode based on the set temperature.
- Ajust de temperatura: Utilitza el Amunt/Avall fletxes per ajustar la temperatura desitjada.
- Velocitat del ventilador: Adjust the fan speed (Auto, Low, Medium, High) using the FAN botó.
5.2. Funcions avançades
- Funció de temporitzador: Set the unit to turn on or off automatically at a specified time. Refer to your controller's specific instructions for detailed timer settings.
- Mode de repòs: Optimitza la temperatura i la velocitat del ventilador per a un son còmode i estalvi d'energia.
- I FEEL Function: The remote control senses the ambient temperature at its location and transmits this data to the indoor unit, allowing for more precise temperature control where you are.
Image: A floor plan illustration demonstrating how the dual-zone system can maintain different temperatures in various rooms, such as 70°F, 72°F, and 68°F, highlighting independent zone control.
6. Manteniment
Regular maintenance ensures optimal performance and longevity of your Gree Multi21+ system. Always turn off the power supply to the unit before performing any maintenance.
6.1. Neteja del filtre d'aire
The indoor units are equipped with air purification filters that should be cleaned regularly (typically every 2-4 weeks, depending on usage and air quality).
- Locate the access panel for the indoor unit's filter.
- Traieu el(s) filtre(s) d'aire.
- Clean the filter(s) using a vacuum cleaner or by washing with lukewarm water and mild detergent. Allow to dry completely before reinstallation.
- Reinstall the clean, dry filter(s) and close the access panel.
6.2. Manteniment de la unitat exterior
- Mantingueu la zona al voltant de la unitat exterior neta de deixalles, fulles i neu per garantir un flux d'aire adequat.
- Netegeu periòdicament les aletes de la serpentina exterior amb un raspall suau o una mànega d'aigua. Aneu amb compte de no doblegar les aletes.
- Ensure the condensate drain is not clogged.
6.3. Servei professional
It is recommended to have your system inspected and serviced by a licensed HVAC technician annually. This includes checking refrigerant levels, electrical connections, and overall system performance.
7. Solució De Problemes
Abans de contactar amb el servei tècnic, torneu aview els següents problemes i solucions habituals.
| Problema | Causa possible | Solució |
|---|---|---|
| La unitat no comença | No power; circuit breaker tripped; remote control batteries dead. | Check power supply; reset circuit breaker; replace remote control batteries. |
| Refrigeració/calefacció insuficient | Dirty air filter; blocked outdoor unit; incorrect mode setting; temperature set too high/low. | Clean air filter; clear obstructions from outdoor unit; select correct mode; adjust set temperature. |
| Fuita d'aigua de la unitat interior | Clogged condensate drain pipe; improper installation. | Clear drain pipe; contact a licensed technician for inspection. |
| Soroll inusual | Loose parts; foreign objects in fan; refrigerant flow noise (normal). | If noise is persistent or loud, contact a licensed technician. Minor gurgling is normal. |
| El comandament a distància no funciona | Piles gastades; obstrucció entre el comandament a distància i la unitat. | Replace batteries; ensure clear line of sight to indoor unit receiver. |
If the problem persists after attempting these solutions, please contact a licensed HVAC professional for assistance.
8. Especificacions
Technical specifications for the Gree Multi21+ Dual-Zone Concealed Duct Mini Split Air Conditioner Heat Pump, Model MULTI18CDUCT201.
| Especificació | Valor |
|---|---|
| Marca | GREE |
| Número de model | MULTI18CDUCT201 |
| Capacitat de refrigeració | 18,000 BTU (1.5 tones) |
| SEER (índex d'eficiència energètica estacional) | 21 |
| Voltage | 208/230 volts |
| Refrigerant | R-410A |
| Nivell de soroll (unitat exterior) | 56 dB |
| Outdoor Unit Dimensions (W x H x D) | 38" x 27.6" x 15.6" |
| Indoor Unit Dimensions (W x H x D) - 9,000 BTU | 27.6" x 7.9" x 24.2" |
| Indoor Unit Dimensions (W x H x D) - 12,000 BTU | 27.6" x 7.9" x 24.2" |
| Item Weight (Outdoor Unit) | 115 lliures |
| Característica especial | Filtre de purificació d'aire |
Image: A table detailing the width, height, and depth measurements for various BTU capacities of Gree DUCT-A indoor and outdoor units.
9. Garantia i Suport
9.1. Garantia del fabricant
Gree provides a manufacturer's warranty for this product:
- Parts: 5 anys de garantia limitada
- Compressor: 7 anys de garantia limitada
Condició important de la garantia: To be eligible for the warranty, installation must be performed by a state-licensed HVAC contractor.
9.2. Atenció al client
For technical assistance, warranty claims, or to locate a licensed service professional, please refer to the contact information provided with your product packaging or visit the official Gree weblloc.
Always provide your model number (MULTI18CDUCT201) and purchase date when contacting support.
