Della 1D4-TL+D1224
DELLA 35K BTU Dual Zone Mini Split Air Conditioner Heat Pump (Model 1D4-TL+D1224) Instruction Manual
Model: 1D4-TL+D1224 | Brand: Della
1. Sarrera
This manual provides comprehensive instructions for the installation, operation, and maintenance of your DELLA 35K BTU Dual Zone Mini Split Air Conditioner Heat Pump. This unit offers energy-efficient cooling and heating for up to 2050 sq. ft., featuring 19 SEER2, Wi-Fi, and Alexa compatibility. Please read this manual thoroughly before installation and operation to ensure proper use and safety.
2. Segurtasun informazioa
Segurtasun-argibide garrantzitsuak:
- This system mandates professional installation. It is not a DIY mini split AC.
- Ensure all power sources are turned off before connecting any wires or performing maintenance.
- Line-set vacuuming is required during installation. Any alteration of line-set length requires adjusting freon levels.
- Always use appropriate tools and follow local electrical and building codes.
- Ez saiatu unitatea zeuk konpontzen edo mantentzen. Jarri harremanetan zerbitzu-langile kualifikatuekin.
3. Paketearen edukia
Your DELLA Dual Zone Mini Split Air Conditioner package includes the following components:
- 1 x Kanpoko Kondentsadore Unitatea (35,000 BTU)
- 2 x Indoor Air Handlers (12,000 BTU and 24,000 BTU)
- 2 x Remote Controls (one for each indoor unit)
- 2 x 16ft Copper Pipes (1/4"+1/2" and 1/4"+3/8")
- 2 x Installation Kits
- Drain Pipe (78.7" length)
- Komunikazio kablea
- Muntatzeko Plaka
- Gomazko Oinak
- Isolamendu Aparra
- Hormako Mahuka
- Plasticine Putty
- Torlojuak eta aingurak
- Parentesi txantiloia


4. Konfigurazioa eta instalazioa
Professional installation is mandatory for this system. It is not designed for DIY installation.
- Muntatzeko kokapena prestatu: Use the provided template to mark locations for the lineset wall hole and the mini split bracket.
- Install Indoor Unit Bracket: Securely attach the mini split bracket to the wall using the provided screws. Use a leveler to ensure correct alignment.
- Route Lineset and Electricals: Route the lineset, drain hose, and electrical wiring through the wall opening.
- Barneko unitatea muntatu: Securely mount the indoor mini split unit onto the bracket.
- Organize Linesets: Tape the drain hose and linesets together for a neat and organized installation. Use zip ties to secure electrical wires around the taped linesets and drain hose.
- Position Outdoor Condenser: Place the outdoor condenser unit in its designated location.
- Connect Linesets: Connect the unit lineset to the condenser lineset and tighten firmly. If available, use a digital torque wrench to ensure proper tightening.
- Konexio elektrikoak: Ensure all power sources are turned off. Remove the electrical compartment cover. Connect the numbered wires from the indoor unit to the corresponding numbered terminals on the outdoor condenser's electrical block. Connect the ground wire (green to green). Connect the power cables (black to 'N', red to 'L') to the condenser.
- Sistema xurgatzea: Ensure you have appropriate vacuum equipment. Connect the hose from the outdoor condenser unit to the gauge, and the hose from the vacuum to the gauge. Open valves on the gauge and turn the vacuum on. Monitor the micron reading closely and close valves once it reaches 350. Turn off the vacuum pump.
- Activate Refrigerant Flow: Restore power to the outlet. Turn the mini split unit on and set it to the lowest cold setting. Allow a few minutes for the outdoor condenser fan to start. Use a service wrench to gradually open the high side (top valve). Monitor the gauge as numbers will drop into the negative range. After opening the high side valve, quickly open the low side (bottom valve). The gauge readings will increase, which is expected.
5. Funtzionamendu-argibideak
Your DELLA Mini Split system offers various modes and features for optimal comfort and energy efficiency.
5.1 Urruneko kontrolaren funtzioak
The included remote controls allow you to manage your indoor units individually. Key functions include:
- Aktibatu/Desaktibatuta: Power the unit on or off.
- Modu aukeraketa: Choose between Heating, Cooling, Dry (dehumidifying), Fan Only, and Auto modes.
- Tenperaturaren doikuntza: Set your desired temperature (60-90°F range).
- Fan abiadura: Adjust fan speed (multiple settings available).
- 4D Airflow: Control vertical and horizontal swing for even air distribution.
- Tenporizadorearen funtzioa: Ezarri unitatea piztu edo itzaltzeko ordu zehatzak.
- Lo egiteko modua: Tenperatura eta haizagailuaren abiadura optimizatzen ditu lo erosoa lortzeko.
- ECO Energy Saving Mode: Energia-kontsumoa murrizten du.
- Turbo funtzioa: Berotze edo hozte azkarra eskaintzen du.
- Sentitzen dut modua: Adjusts temperature based on the remote's location for personalized comfort.

5.2 Smart Control with Della+ App (Wi-Fi & Alexa)
Control your DELLA Mini Split unit remotely using the free Della+ app, compatible with Wi-Fi and Alexa. This allows for advanced scheduling, mode selection, and geo-location features.
- Urruneko sarbidea: Control your unit from anywhere with an internet connection.
- Programazioa: Set custom schedules for your unit to turn on/off or change modes.
- Geo-Location Function: Automatically adjust AC settings based on your proximity to your home.
- Ahots kontrola: Integrate with Alexa for hands-free temperature adjustments.

6. Mantentzea
Regular maintenance ensures optimal performance and longevity of your DELLA Mini Split unit.
- Iragazkien garbiketa: Regularly clean or replace air filters in the indoor units to maintain airflow and efficiency.
- Kanpoko Unitatearen Garbiketa: Keep the outdoor condenser unit free from debris, leaves, and obstructions to ensure proper heat exchange.
- Hustubide-hodiaren egiaztapena: Periodically check the drain line for blockages to prevent water leakage.
- Ikuskapen profesionala: Schedule annual professional inspections to check refrigerant levels, electrical connections, and overall system health.
7. Arazoak
If you encounter issues with your DELLA Mini Split unit, refer to the following common troubleshooting tips:
- Unitatea ez pizten: Egiaztatu elikatze-iturria, etengailu magnetotermikoa eta ziurtatu urrutiko agintearen bateriak funtzionatzen dutela.
- Hozte/berokuntza eskasa: Verify temperature settings, clean air filters, and ensure no obstructions around indoor/outdoor units.
- Ezohiko zaratak: Minor operational noises are normal. Excessive or unusual noises may indicate a problem; contact professional service.
- Errore-kodeak: If an error code appears on the display (e.g., "EU code" as mentioned by some users), consult the full user manual or contact customer support for specific diagnostic steps.
- Wi-Fi/Alexa Connectivity Issues: Ensure your Wi-Fi network is stable and the Della+ app is updated. Re-pair the device if necessary.
8. Zehaztapenak
| Ezaugarri | Xehetasuna |
|---|---|
| Modelo zenbakia | 1D4-TL+D1224 |
| BTU Edukiera | 35,000 BTU/h (Dual Zone: 12,000 BTU + 24,000 BTU) |
| SEER2 Balorazioa | 19 IGARRIA2 |
| liburukiatage | 208-230V |
| Estaldura Eremua | Up to 2050 Sq. Ft. (550 Sq. Ft. for 12K unit, 1500 Sq. Ft. for 24K unit) |
| Funtzionamendu-tenperatura (berokuntza) | -13°F (-25°C) arte |
| Hozgarri mota | R454B (environmentally friendly) |
| Zarata maila (barrualdean) | 36 dBa (ultra silent) |
| Ezaugarri bereziak | 4D Airflow, I Feel Mode, 24-hour Timer, Sleep Mode, ECO Mode, Multiple Fan Speeds, Turbo Function, Dehumidifier, Remote Controlled, Alexa & Wi-Fi Compatible |
| Gehienezko fusiblearen tamaina | 35A |
| Produktuaren neurriak | 8.07"S x 31.92"Z x 11.49"A (Barruko unitatea) |
| Elementuaren pisua | 224 kilo (sistema osoa) |
| Ziurtagiriak | ETL Listed, AHRI Certified |


9. Bermea eta Laguntza
DELLA offers unmatched support and warranty coverage for your peace of mind.
- Bizi osorako berme mugatua: Enjoy best-in-class warranty coverage with no additional costs.
- Bezeroarentzako laguntza: 24/7 live chat support is available. Phone support is available from 6 AM to 4 PM PST.

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