1. Einleitung
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your DELLA Serena 12000 BTU Mini Split AC & Heat Pump system. This unit is designed to provide both cooling and heating for spaces up to 550 sq.ft, featuring a 22 SEER2 rating for energy efficiency, inverter technology, and smart control options including Wi-Fi and voice control compatibility. Please read this manual thoroughly before installation and use, and retain it for future reference.

Image 1: DELLA Serena 12000 BTU Mini Split AC and Heat Pump system.
2. Sicherheitshinweise
Wichtige Sicherheitshinweise:
- Professionelle Installation erforderlich: This system mandates professional installation. It is not a DIY mini split AC. Improper installation can lead to electric shock, fire, serious injury, or death.
- Elektrische Sicherheit: Ensure the power supply matches the unit's requirements (115V). All electrical work must be performed by a qualified electrician in accordance with local and national electrical codes.
- Umgang mit Kältemitteln: The unit is pre-loaded with R32 refrigerant. Handling of refrigerants requires specialized training and equipment. Any alteration of line-set length requires adjusting freon levels, which must be done by a certified technician.
- Belüftung: Ensure adequate ventilation around the outdoor unit to prevent overheating.
- Kinder und Haustiere: Halten Sie Kinder und Haustiere während des Betriebs und der Wartung vom Gerät fern.
- Reinigung: Vor der Reinigung oder Durchführung von Wartungsarbeiten die Stromzufuhr unterbrechen.
3. Packungsinhalt
Verify that all components listed below are included in your package. If any items are missing or damaged, contact customer support immediately.
- 1 x Mini-Split Indoor Unit
- 1 x Mini-Split Outdoor Unit
- 1 x Fernbedienung
- 1 x 16.4ft Installation Kit (Standard size 1/4" & 3/8" outer dimension copper pipes)
- Drain Pipe (Length: 78.7")
- Montageplatte
- Wandkappe
- Plastikfolie
- 2 x AAA-Batterien (für die Fernbedienung)
- Plasticine Putty
- Netzkabel
- Kommunikationskabel
- Klammervorlage
- Bedienungsanleitung

Image 2: Included components of the DELLA Mini Split AC system.
4. Einrichtung und Installation
Professional Installation is Mandatory: The DELLA Serena Mini Split AC & Heat Pump system requires professional installation. Attempting to install the unit yourself may void the warranty and lead to safety hazards. Contact a certified HVAC technician for proper installation.
Wichtige Installationshinweise:
- Line-set Vacuuming: Line-set vacuuming is required during installation to remove moisture and non-condensable gases from the refrigerant lines.
- Kältemittelstände: The unit is pre-charged with R32 refrigerant for up to 25 ft of line-set. Any alteration of line-set length beyond this requires adjusting freon levels by a qualified technician.
- Elektrischer Anschluss: Ensure the electrical supply is 115V and the maximum fuse size is 25A.
- Drainage: Proper routing and sloping of the drain pipe (78.7" length provided) are crucial for efficient condensate removal.
5. Bedienungsanleitung
Your DELLA Serena Mini Split offers multiple ways to control your comfort.
5.1 Fernbedienungsbetrieb
The included remote control provides direct access to all functions. Insert the two AAA batteries before first use.

Abbildung 3: Funktionen der Fernbedienung.
- Ein/Aus: Schaltet das Gerät ein oder aus.
- Modus: Cycles through operating modes: Auto, Cool, Heat, Dry (Dehumidify), Fan Only.
- Temperatur erhöhen/senken: Regelt die gewünschte Temperatur.
- Lüftergeschwindigkeit: Selects fan speed (Quiet, Low, Mid, High, Turbo).
- Schwingen: Controls horizontal and vertical louver movement for 4D airflow.
- Energiesparmodus: Optimizes energy saving.
- Schlafmodus: Adjusts temperature for comfortable sleep and quiet operation (as low as 23 dBa).
- Timer: Sets a 24-hour timer for automatic on/off.
- PureClean: Aktiviert die Selbstreinigungsfunktion des Innengeräts.
- I Feel Mode (Vicinity Sensor): Die Fernbedienung erfasst die Temperatur in ihrer Umgebung und passt den Betrieb des Geräts an, um lokalen Komfort zu gewährleisten.
5.2 Smart Control (Wi-Fi & Voice Control)
Control your unit from anywhere using the DELLA app or integrate with Alexa/Google Home for voice commands.

Image 4: DELLA app interface for smart control.
- DELLA App: Download the DELLA app from your smartphone's app store. Follow the in-app instructions to connect your unit to your home Wi-Fi network. The app allows for remote control, scheduling, and monitoring.
- Geo-location Function: The exclusive geo-location feature in the DELLA app can adjust the temperature based on your location, saving energy when you're away and ensuring comfort upon your arrival.
- Sprachsteuerung: Once connected to the DELLA app, you can link your unit to Amazon Alexa or Google Home for convenient voice-activated control.

Image 5: Smart Geo Location feature in action.
6. Wartung
Regular maintenance ensures optimal performance and longevity of your DELLA Mini Split system.
- Filterreinigung: The reusable filters in the indoor unit should be cleaned seasonally, or more frequently depending on usage and air quality. Disconnect power before accessing and cleaning filters.
- PureClean Technology: The unit features PureClean tech, which helps prevent dust buildup and defrosts the indoor unit, contributing to cleaner air.
- Außengerät: Keep the area around the outdoor unit clear of debris, leaves, and snow to ensure proper airflow. The bottom heating element in the outdoor unit prevents ice buildup during winter operation.
- Professioneller Check-up: It is recommended to have a qualified technician perform an annual check-up and cleaning of the entire system.
7. Fehlerbehebung
If you encounter issues with your unit, refer to the following common troubleshooting steps. For complex problems, contact customer support.
| Problem | Mögliche Ursache | Lösung |
|---|---|---|
| Das Gerät lässt sich nicht einschalten | Keine Stromversorgung; Batterien der Fernbedienung leer; Schutzschalter ausgelöst. | Stromanschluss prüfen; Batterien der Fernbedienung austauschen; Sicherungsautomat zurücksetzen. |
| Unzureichende Kühlung/Heizung | Dirty air filters; Temperature setting incorrect; Obstruction to airflow; Refrigerant leak. | Clean air filters; Adjust temperature; Remove obstructions; Contact technician for refrigerant check. |
| Ungewöhnliche Geräusche | Loose parts; Fan obstruction; Normal expansion/contraction sounds. | Check for loose parts; Remove obstruction; Normal sounds are not a fault. |
| Wasserleckage am Innengerät | Clogged drain pipe; Improper installation angle. | Clear drain pipe; Contact technician to check installation. |
8. Spezifikationen
Detailed technical specifications for the DELLA Serena 12000 BTU Mini Split AC & Heat Pump.
| Besonderheit | Spezifikation |
|---|---|
| Modellnummer | 12K1VR-22S-M-I+O |
| Kühlleistung | 12,000 BTU/h |
| Heizleistung | 12,300 BTU/h |
| SEER2-Bewertung | 22 SEER2 |
| Stromversorgung | 115V-60Hz |
| Maximale Eingangsleistung | 1100 Watt |
| Wastage | 970 Watt |
| max. Sicherungsgröße | 25 A |
| Kältemitteltyp | R32 |
| Abdeckungsbereich | Bis zu 550 Quadratfuß |
| Abmessungen des Innengeräts (L x B x H) | 32.56 x 7.87 x 11.77 Zoll |
| Abmessungen des Außengeräts (L x B x H) | 27.76 x 10.98 x 20.87 Zoll |
| Artikelgewicht | 18.3 pounds (likely indoor unit, total system weight will be higher) |
| Besondere Merkmale | Dehumidifier, Remote Control, WiFi Enabled, Voice Control |

Image 6: DELLA Serena Mini Split AC system.
9. Garantie und Support
DELLA is committed to providing quality products and customer satisfaction.
9.1 Garantieinformationen
Your DELLA Serena Mini Split AC & Heat Pump comes with a Lebenslange Garantie. This warranty covers manufacturing defects and ensures peace of mind regarding your investment. Please refer to the warranty card included with your product for full terms and conditions.

Image 7: Lifetime Coverage and Support.
9.2 Kundendienst
For any questions, technical assistance, or warranty claims, DELLA offers comprehensive customer support:
- Live Chat: 24/7 live chat support is available for immediate assistance.
- Telefonischer Support: Contact our technicians during business hours (6 AM - 4 PM PST).
- Widerrufsfolgen: Für dieses Produkt gilt ein 30-tägiges Rückgaberecht.
Please visit the official DELLA website or refer to the contact information provided in your product packaging for specific contact details.