1. Introduction
This manual provides essential information for the safe and efficient operation, installation, and maintenance of your DELLA 27K BTU 3-Zone Mini Split Air Conditioner Heat Pump, Model 1D3-TP+T9918. Please read this manual thoroughly before installation and use, and retain it for future reference.
2. Safety Information
Important Safety Instructions:
- Professional Installation Required: This air conditioning system requires professional installation. It is not designed for DIY installation. Improper installation can lead to electric shock, fire, water leakage, or other damage.
- Electrical Requirements: Ensure the power supply matches the unit's specifications (208-230V). The maximum fuse size is 30A. All electrical work must comply with local and national electrical codes.
- Refrigerant Handling: This unit uses R454B refrigerant. Any alteration of line set length requires adjusting refrigerant levels, which must be performed by a certified technician. Line set vacuuming is required during installation.
- Clearance: Maintain adequate clearance around both indoor and outdoor units for proper airflow and maintenance.
- Children and Pets: Keep children and pets away from the unit during operation and maintenance.
3. Product Overview
The DELLA 27K BTU 3-Zone Mini Split Air Conditioner Heat Pump system provides efficient cooling and heating for up to 1800 sq. ft. It features a 24 SEER2 rating for energy efficiency and operates quietly at 43 dBa. The system includes one outdoor condenser unit and three indoor air handlers (9000 BTU + 9000 BTU + 18000 BTU), allowing for individual temperature control in multiple rooms.
Key Features:
- Energy Efficient: 24 SEER2 rating with DC Inverter technology for up to 30% power savings.
- Multi-Zone Comfort: Three indoor units for independent climate control in different areas.
- Wide Operating Range: Heat pump function operates down to -13°F (-25°C).
- Smart Functions: I Feel mode, 24-hour timer, Sleep mode, Eco energy saving mode, 4D airflow (up-down, left-right), Turbo function, Cooling, Heating, Auto, and Dry (dehumidifying) modes.
- Quiet Operation: Operates at an ultra-silent 43 dBa.
- Smart Connectivity: Works with Alexa and Wi-Fi via the Della+ app, including Smart Geo Location features.
System Components:
The DELLA 27K BTU 3-Zone Mini Split system includes the following main components:
- 1 x Outdoor Condenser Unit
- 3 x Indoor Air Handler Units (9000 BTU, 9000 BTU, 18000 BTU)
- 3 x Remote Controls
- 3 x 16ft Copper Linesets (Standard size 1/4" & 1/2", 2 * 1/4" & 3/8" outer dimension)
- 3 x 6.56ft Outlet Drain Pipes (inner/outer diameter size: 15.5mm/16.9mm)
- Installation Kits (various mounting hardware, insulation, communication cables)
- User Manual
Figure 3.1: Complete DELLA 27K BTU 3-Zone Mini Split System
Figure 3.2: Exploded View of System Components
4. Installation (Setup)
Installation of the DELLA 27K BTU 3-Zone Mini Split Air Conditioner Heat Pump must be performed by a qualified and certified HVAC professional. Attempting self-installation will void the warranty and may result in serious injury or damage to the unit.
Installation Overview:
- Site Selection: Choose appropriate locations for the outdoor unit and each indoor unit, ensuring proper airflow and structural support.
- Mounting: Securely mount indoor units and the outdoor unit according to manufacturer guidelines.
- Line Set Connection: Connect the refrigerant lines and drain pipes between the indoor and outdoor units. The system includes 16ft copper linesets and 6.56ft drain pipes for each indoor unit.
- Electrical Wiring: Connect the power supply and communication cables. Ensure all electrical connections are secure and meet local codes.
- Vacuuming and Leak Test: The refrigerant lines must be thoroughly vacuumed to remove air and moisture, and a leak test performed before releasing refrigerant.
- Refrigerant Charge: The unit is pre-charged. However, if line set lengths are altered, the refrigerant charge must be adjusted by a professional.
- Drainage: Ensure proper drainage for condensate from the indoor units.
5. Operating Instructions
Your DELLA Mini Split system can be operated using the included remote controls or via the Della+ smartphone application.
Remote Control Operation:
Each indoor unit comes with a dedicated remote control for individual zone management. Refer to the diagram below for button functions.
Figure 5.1: Remote Control Functions
- Power On/Off: Press the On/Off button to start or stop the unit.
- Mode Selection: Use the Switch Modes button to cycle through Cooling, Heating, Dry, Fan, and Auto modes.
- Temperature Adjustment: Use the Temp Up and Temp Down buttons to set the desired temperature (range: 60-90°F).
- Fan Speed: Adjust fan speed using the Fan Speed button.
- Airflow Direction: Control vertical and horizontal swing using the respective buttons (Vertical Swing, Horizontal Swing).
- Timer: Set an automatic on/off time using the Timer Setting button.
- Sleep Mode: Activates a quiet, energy-saving operation for comfortable sleep.
- ECO Mode: Optimizes operation for energy efficiency.
- Turbo Function: Provides rapid cooling or heating.
Smart Control (Della+ App & Voice Assistants):
The DELLA system is Wi-Fi enabled and can be controlled remotely via the Della+ smartphone application. It also integrates with Alexa and Google Assistant for voice control.
Figure 5.2: Della+ App Interface for Wireless Control
- Della+ App: Download the Della+ app from your smartphone's app store. Follow the in-app instructions to connect your air conditioner to your home Wi-Fi network. The app allows for full control of all functions, scheduling, and monitoring.
- Smart Geo Location: The Della+ app features Smart Geo Location, which can automatically adjust your AC unit's operation based on your proximity to your home.
- Voice Control: Once connected to the Della+ app, you can link your system to Amazon Alexa or Google Assistant for convenient voice commands.
Figure 5.3: Smart Geo Location Feature
6. Maintenance
Regular maintenance ensures optimal performance and longevity of your DELLA Mini Split system. Always disconnect power to the unit before performing any maintenance.
Routine Maintenance:
- Air Filter Cleaning: Clean the air filters of the indoor units regularly (e.g., every 2-4 weeks, depending on usage and air quality). Remove filters, wash with mild soap and water, rinse thoroughly, and allow to dry completely before reinserting.
- Indoor Unit Exterior: Wipe the exterior of the indoor units with a soft, damp cloth. Do not use harsh chemicals or abrasive cleaners.
- Outdoor Unit Coil Cleaning: Periodically inspect and clean the outdoor unit's condenser coils to remove dirt, leaves, and debris. This improves efficiency. Use a soft brush or vacuum cleaner.
- Drainage Check: Ensure the condensate drain lines are clear and free of obstructions to prevent water leakage.
- Professional Inspection: Schedule annual professional inspections and maintenance by a qualified HVAC technician to check refrigerant levels, electrical connections, and overall system health.
7. Troubleshooting
If you encounter issues with your DELLA Mini Split system, refer to the following common troubleshooting tips. For complex problems, contact customer support or a certified technician.
Common Issues:
- Reduced Cooling/Heating Performance: If the total indoor capacity is higher than the outdoor unit’s output, the system can still function, but cooling or heating performance may be slower when all zones are operating beyond capacity. Ensure air filters are clean and outdoor unit coils are free of obstructions.
- No Power: Check the circuit breaker and ensure the unit is properly plugged in. Verify the maximum fuse size (30A) is not exceeded.
- Remote Control Not Working: Check batteries and ensure there are no obstructions between the remote and the indoor unit.
- Unusual Noises: Minor noises during operation are normal. If loud or unusual noises occur, power off the unit and contact support.
- Water Leakage: Check the condensate drain line for blockages or improper installation.
8. Specifications
| Specification | Detail |
|---|---|
| Brand Name | Della |
| Model Number | 1D3-TP+T9918 |
| Efficiency | 24 SEER2 |
| Capacity | 27000 BTU (2.25 Tons) |
| Indoor Unit Configuration | 3 Zones (9000 BTU + 9000 BTU + 18000 BTU) |
| Coverage Area | Up to 1800 Sq. Ft. (Recommended: 2x 400 Sq. Ft. + 1x 1000 Sq. Ft.) |
| Voltage | 208-230 Volts |
| Wattage | 2020 watts |
| Refrigerant Type | R454B |
| Heat Pump Operating Range | Down to -13°F (-25°C) |
| Noise Level | 43 dBa (Ultra Silent) |
| Special Features | Dehumidifier, Fast Cooling, Remote Control, WiFi Enabled, Alexa Compatible |
| Indoor Unit Dimensions (approx.) | 32.25 x 7.69 x 12.06 inches |
| Material Type | Plastic |
9. Warranty and Support
DELLA is committed to providing reliable products and excellent customer service.
Warranty Information:
Your DELLA Mini Split Air Conditioner Heat Pump comes with a Limited Lifetime Warranty, offering peace of mind and unmatched support. Please refer to the warranty card included with your product for specific terms and conditions.
Figure 9.1: Lifetime Coverage
Customer Support:
For any questions, technical assistance, or warranty claims, please contact DELLA Customer Support:
- Phone Support: Available Monday-Friday, 6 AM - 4 PM PST.
- Live Chat: Available 24/7 for immediate assistance.
- Returns: Enjoy 30-day easy returns.
Figure 9.2: Dedicated Customer Support
