Deye Solar Multi Split System-Hybrid ACDC

I. Ushering in a New Era of High-Efficiency Cooling: Introduction to the Deye Solar Multi Split System

As global attention on energy efficiency and sustainable development increases, the high electricity costs and environmental impact associated with traditional air conditioning systems are driving consumers to seek smarter, greener alternatives. The market demand for energy-efficient AC systems that deliver both energy savings and cost reduction is rapidly growing.

It is against this backdrop that the Deye Solar Multi Split System emerges, representing a significant leap forward in air conditioning technology.

Deye Technology Group was established in 1990 in Ningbo by group president Mr Zhang Hejun. Through years of development, the Group has built profound expertise in energy technology. A key milestone occurred in 2007 with the founding of Ningbo Deye Inverter Technology Co, Ltd, marking a breakthrough in core technology. Deye developed the 180-degree sine wave DC inverter controller and mastered its core algorithm, establishing the company’s strong dominance in this field.

Building upon its mature product lines, including solar inverters, solar water pump controllers, and heat pump air conditioners, Deye began focusing on researching and developing solar air conditioners in 2015.

The Deye Solar Multi Split System is the pinnacle of this research, offering a revolutionary hybrid ACDC air conditioning solution. This system cleverly combines the clean energy of solar power with the reliability of the traditional grid, maximizing solar utilization to significantly reduce operating costs without sacrificing comfort or reliability in cooling/heating. By 2020, Deye's solar air conditioners had been sold to over 20 countries, including the USA, Australia, Pakistan, India, the Philippines, the Middle East, South Asia, and Europe, confirming its leading global technological position and market acceptance.

The Deye Solar Multi Split System is designed to provide users with a sustainable, highly efficient, and easy-to-install AC option, launching a new era of high-efficiency cooling.

II. Understanding the Working Principle of Solar Multi Split Systems

1. Multi Split AC System

A Multi Split AC System, as the name implies, is a highly efficient central air conditioning solution characterized by the use of only one outdoor unit to connect multiple independent indoor units. Each indoor unit can be controlled individually, allowing for zoning (Zoning) cooling or heating. This system is ideal for homes or commercial premises with multiple rooms, as it offers:

• Space Efficiency: Reduces the need for multiple outdoor units.
• Flexibility: Allows users to control the temperature control only in areas where it is needed, preventing unnecessary energy waste.
• Aesthetics: Maintains the clean appearance of the building exterior.

2. How Solar-Powered AC Systems Work

While traditional AC units rely entirely on AC power from the electrical grid, solar air conditioning systems integrate clean renewable energy.

The Deye Solar Multi Split System smartly uses roof-mounted Solar Panels to generate Direct Current (DC) electricity. This DC power is supplied directly to the AC system's inverter and compressor. Since AC compressors essentially operate on DC power, using solar DC power directly maximizes energy efficiency by eliminating the conversion losses that occur when converting DC back to AC.

3. Detailed Explanation of Hybrid ACDC Technology: Deye’s Core Advantage

The Hybrid ACDC Air Conditioner technology is central to the Deye Solar Multi Split System. After establishing Ningbo Deye Inverter Technology Co, Ltd in 2007, Deye laid a solid foundation for this technology by mastering the core algorithm of the 180-degree sine wave DC inverter controller.

The essence of Hybrid ACDC technology lies in intelligent power management and optimization:

• Solar Power Priority (DC): The system primarily uses the DC electricity generated by the solar panels to run, thereby minimizing power consumption from the grid.
• Automatic Grid Supplementation (AC): When solar generation is insufficient (e.g., cloudy days or evening), the system seamlessly and automatically draws the necessary AC power from the grid, ensuring continuous operation of the air conditioner without manual intervention.

Through this intelligent hybrid ACDC operation, the Deye Solar Multi Split System successfully achieves high energy efficiency and reliability while minimizing the user's electricity costs, demonstrating Deye’s expertise and leadership in the energy-efficient AC sector.

III. Core Advantages and Features of the Deye Solar Multi Split System

The Deye Solar Multi Split System, with its unique design and technological integration, offers a range of outstanding features that surpass conventional air conditioning systems. These advantages are a testament to the continued investment in innovative technology by Deye Technology Group since its founding in 1990, particularly the technological foundation established by mastering the core algorithm of the 180-degree sine wave DC inverter controller in 2007.

1. Outstanding Solar Power Integration

The Deye Solar Multi Split System is specifically designed to maximize solar energy utilization. The system integrates directly with standard Solar Panels, eliminating the need for complex battery banks or additional solar charge controllers.

• Direct DC Drive: The system uses highly efficient DC inverter compressors, which can run directly on the DC electricity generated by the Solar Panels, bypassing the DC to AC conversion step, greatly reducing energy loss.
• Energy Savings: On sunny days, the system can prioritize the use of clean solar power, achieving up to 100% zero-cost daytime operation, resulting in significant energy savings and lower electricity bills for users.

2. Intelligent Hybrid ACDC Operation

This is the core technology of the Deye Solar Multi Split System. The system is equipped with an intelligent power management module that allows for seamless switching and collaborative work between solar (DC) and grid (AC) power.

• Auto Balance (AC/DC Auto Balance): The system monitors solar power generation and AC power demand in real-time, automatically adjusting the ratio of DC and AC input.
• Continuous Operation Guarantee: In cases where solar power is insufficient (cloudy or nighttime), the system smoothly and automatically switches to AC power supply from the grid, ensuring continuous operation of the air conditioner and user comfort.

3. Flexible Zoning Control and Comfort (Multiple Indoor Units)

As a Multi Split AC System, the Deye Solar Multi Split System offers high installation flexibility.

• Multi-Unit Connection: One outdoor unit can connect up to nine indoor units, suitable for various residential and commercial spaces.
• Zoning Control: Each indoor unit can be switched on, off, and set to different temperature control settings independently, meeting the personalized comfort needs of different rooms or occupants.

4. High Energy Efficiency and Eco-Friendly Design (Energy Efficiency)

The Deye Solar Multi Split System uses full DC inverter technology, ensuring high standards of Energy Efficiency Ratios.

Through efficient operation and the use of eco-friendly refrigerants, the system not only saves on operating costs but also actively fulfills environmental responsibility.

5. Smart Control and Real-time Monitoring (Smart Control and Monitoring)

To enhance user experience, the Deye Solar Multi Split System features advanced smart control functionalities.

• Mobile App Operation: Users can perform remote smart control of the system via a mobile application (App), adjusting settings anytime, anywhere.
• Real-time Monitoring: The App interface displays real-time system operating status, energy consumption, and the amount of energy savings achieved through solar power, giving users clear visibility into the system's operational benefits.

IV. Value Proposition of Choosing the Deye Solar Multi Split System

Choosing the Deye Solar Multi Split System is not just about installing an air conditioning unit; it is an intelligent investment in the future that delivers long-term cost savings and environmental benefits. This is a result of Deye Technology Group's continuous commitment to high-efficiency inverter technology and renewable energy integration.

1. Significant Long-term Cost Savings (Cost Savings)

The Deye Solar Multi Split System's solar-priority operation directly cuts high peak-time electricity demand for daytime AC use, leading to substantial financial benefits.

• Quantifiable Electricity Savings: Under sufficient sunlight, the system can achieve up to 100% zero-cost daytime operation. Depending on the installation region and usage habits, users can see significant energy savings on their summer electricity bills.
• Return on Investment (ROI): While the initial investment is higher than traditional AC systems, the extremely low daily operating costs mean the system's Return on Investment (ROI) is much shorter than that of pure grid AC air conditioners, offering a sustainable source of long-term economic benefit.

2. Positive Environmental Contribution (Environmental Impact)

As a company committed to innovation and sustainable development since its establishment in 1990, Deye understands its responsibility in environmental protection.

• Reduced Carbon Footprint: By maximizing the use of clean renewable energy (Solar Panels), the system significantly reduces reliance on fossil fuel power generation, thereby substantially lowering the user's carbon footprint.
• Enhanced Energy Independence: Encourages the use of distributed solar power generation, alleviating pressure on the public grid and promoting a societal shift toward more sustainable energy structures.

3. Excellent Reliability and Durability (Reliability and Durability)

Deye focuses on product quality and engineering precision, ensuring that the Deye Solar Multi Split System boasts outstanding durability and long-term reliability.

• Core Technology Assurance: Based on the core technology of the 180-degree sine wave DC inverter controller mastered by Ningbo Deye Inverter Technology Co, Ltd, the system runs smoothly, components have low wear and tear, and the service life is extended.
• Continuous Operation: The hybrid ACDC operation ensures the system can continuously cool/heat in any weather condition, providing stable temperature control, and users do not need to worry about the risk of power outages (provided the grid connection is stable).
• Comprehensive Support: Deye offers comprehensive after-sales service and warranty policies, ensuring the stability and longevity of the user's investment.

4. Advanced Comfort and Convenience (Comfort and Convenience)

The Deye Solar Multi Split System perfectly integrates energy saving with comfort.

• Personalized Comfort: The zoning (Zoning) cooling function allows users in each room to set independent temperature control according to their needs, fulfilling personalized comfort requirements.
• Ease of Use: Smart control and real-time energy monitoring via the mobile app allow users to easily manage and optimize system operation, enhancing daily convenience.

V. Key Components of the Deye Solar Multi Split System

The high performance and reliable operation of the Deye Solar Multi Split System are due to the sophisticated design and high-tech integration of its key components. These components work together to achieve the unique hybrid ACDC power supply and optimized energy efficiency.

1. Outdoor Unit

The outdoor unit is the "heart" of the Deye Solar Multi Split System, integrating the driving system and intelligent power management technology.

• Core Technology: It employs a full DC inverter compressor and fan motor, benefiting from the core algorithm of the 180-degree sine wave DC inverter controller that Ningbo Deye Inverter Technology Co, Ltd mastered after its founding in 2007.
• DC Direct Input: The outdoor unit has dedicated DC input ports to directly receive power from the Solar Panels, maximizing solar energy utilization.
• Intelligent Hybrid Module: The built-in power management module is responsible for the automatic, seamless power distribution between solar (DC) and grid (AC) in-flow, ensuring continuous operation of the system.
• Multi Split Capacity: The outdoor unit has a powerful capacity to support simultaneous connection of up to nine different models of indoor units, enabling flexible zoning and temperature control.

2. Indoor Units

The Deye Solar Multi Split System offers a variety of indoor unit options to suit different installation environments and aesthetic needs, thus meeting personalized comfort requirements.

• Main Types:
  • Wall-mounted: The most common and flexible installation type.
  • Concealed Ducted: Hidden within the ceiling, providing the most minimal appearance.
  • Cassette: Typically installed in commercial spaces for even air distribution.
• Inverter Control: The indoor units work with the outdoor unit to achieve precise temperature control for each zone through accurate inverter control, providing a stable and comfortable airflow experience.

3. Solar Panels

The Solar Panels are the system's "power station," responsible for converting sunlight into the DC electricity that drives the air conditioner.

• Compatibility: The Deye Solar Multi Split System is designed to be directly compatible with industry-standard solar photovoltaic (PV) panels, requiring no specialized custom panels.
• Connection Method: Typically uses series connection (PV in Series) to provide the required DC voltage to the system, feeding directly into the DC port of the outdoor unit.
• Power Generation Role: The DC power generated by the panels is prioritized to drive the AC compressor, which is the key to achieving energy savings during the day.

4. Inverter

In the Deye Solar Multi Split System, while there is no traditional separate solar inverter, its core function is integrated within the electronic control system of the outdoor unit.

• Core Role: The internal inverter converts the input DC power (from solar) and AC power (from the grid) into the precise frequency and voltage required to drive the compressor and fans, achieving high energy efficiency and precise temperature control.
• Technological Advantage: It is based on the inverter control technology mastered by Deye in 2007 that the system can achieve such intelligent and efficient ACDC power management.

VI. Installation and Maintenance Guide for the Deye Solar Multi Split System

Correct and professional installation is the foundation for the Deye Solar Multi Split System to achieve the highest energy efficiency and long-term reliability. At the same time, regular maintenance is crucial for ensuring the system's service life and sustained high performance.

1. Installation Process Overview

While the Deye Solar Multi Split System is designed with ease of installation in mind, professionalism is paramount because it involves high-voltage circuits, refrigerant line connections, and the integration of solar DC power.

• Site Survey: Determine the optimal location for the outdoor unit (well-ventilated, close to the Solar Panels and indoor unit piping) and the indoor units (for best temperature control and airflow distribution).
• Piping Layout: Install the refrigerant copper tubing and drainage lines connecting the outdoor unit to all indoor units. As a Multi Split AC System, this requires precise piping design and length control.
• Power Connection: Connect the grid AC power and the Solar Panels DC power to the designated input ports of the outdoor unit. Deye's system design simplifies power integration for solar.
• System Commissioning: Evacuate, charge the refrigerant, and perform the initial startup test. Check the operating status of all indoor units and the outdoor unit via the smart control system to ensure the hybrid ACDC operation is functioning correctly.
• Professional Installation Recommendation: Deye Technology Group strongly recommends installation by trained and certified technicians to ensure the system meets all safety and performance standards and qualifies for full warranty service.

2. System Maintenance Tips

Regular preventive maintenance will maximize the service life and energy savings effect of the Deye Solar Multi Split System.

• Filter Cleaning: Clean the air filters of all indoor units regularly, usually monthly. Clean filters ensure smooth airflow and maintain the highest Energy Efficiency Ratio (EER/SEER).
• Outdoor Unit Check: Ensure the area around the outdoor unit is free of obstructions that could block heat dissipation. Clean the outdoor unit's heat exchanger fins at least once a year to maintain its cooling efficiency.
• Solar Panel Cleaning: Regularly inspect and clean the surface of the Solar Panels to remove dust, dirt, or leaves, ensuring maximum power generation.
• Refrigerant Check: It is recommended to have the refrigerant pressure checked by a professional technician annually. Deye's systems are sealed, but in rare cases, minor leaks can seriously affect the system's energy efficiency.
• Smart Monitoring Utilization: Use the mobile App for smart control and monitoring, regularly checking system operating data and error codes to promptly identify and address potential issues.

Professional maintenance ensures that users continue to enjoy all the value the Deye Solar Multi Split System provides in terms of energy savings and comfort over the long term.

VII. Comparison of the Deye Solar Multi Split System with Traditional AC Systems

The Deye Solar Multi Split System represents the future direction of air conditioning technology and renewable energy integration. The following comparison clearly highlights the core technological advantages of the Deye system and the value it brings to users, which are built upon the inverter technology expertise accumulated by Deye Technology Group since its establishment in 1990 and the breakthrough in the 180-degree sine wave DC inverter controller algorithm achieved by Ningbo Deye Inverter Technology Co, Ltd in 2007.

1. Core Technology and Energy Utilization Comparison

2. Economic and Environmental Comparison

3. User Experience and System Feature Comparison

Summary

The Deye Solar Multi Split System, with its unique hybrid ACDC architecture, offers an unparalleled solution for users seeking sustainability and long-term economic benefits. It perfectly combines Deye Technology Group's core inverter technology with clean solar power, achieving significant energy savings while delivering excellent temperature control and comfort. It is the ideal choice for the energy-efficient AC system of the future.

VIII. Frequently Asked Questions (FAQ)

To address common inquiries regarding the Deye Solar Multi Split System, this innovative hybrid ACDC air conditioning solution, we provide the following answers:

1. How does the Deye Solar Multi Split System operate at night or on cloudy days?

• The Deye Solar Multi Split System uses hybrid ACDC operation technology, meaning it does not rely solely on solar power.
• At night or whenever the Solar Panels are not generating enough power, the system's intelligent control module seamlessly and automatically switches to AC power supply from the electrical grid.
• This ensures continuous operation and stable temperature control of the air conditioner, so users do not have to worry about the system stopping when there is no sunlight.

2. Does the Deye Solar Multi Split System require batteries for energy storage?

• No, it does not. The design philosophy of the Deye Solar Multi Split System is "use it as you save it." It primarily uses the DC electricity generated by the Solar Panels directly during the day, eliminating the need to store energy in expensive batteries.
• The system operates by intelligently drawing the necessary power from both solar and the grid. If cooling is needed at night, it uses grid power directly, which minimizes the system's initial cost and maintenance requirements.

3. Are there strict requirements for the number of solar panels to install?

• The Deye Solar Multi Split System offers flexibility, but it is generally recommended to install enough Solar Panels to match the maximum capacity of the outdoor unit.
• Installing more panels will maximize the system's solar utilization and achieve greater energy savings. However, the system will still operate normally even if fewer panels are installed than the ideal amount; it will simply rely more on grid power.
• A professional installer will provide the optimal panel configuration based on your system's capacity, local solar irradiance, and your energy consumption needs.

4. Is the Deye Solar Multi Split System suitable for all climate conditions?

• Yes, it is. The Deye Solar Multi Split System is designed for a wide range of climates, benefiting from Deye Technology Group's expertise in inverter technology and AC.
• It uses a highly efficient full DC inverter compressor, ensuring the system can reliably cool or heat in extremely hot or cold environments, achieving high standards of energy efficiency (SEER/EER).
• Its hybrid ACDC operation guarantees continuous operation and comfort regardless of ambient temperature, as long as there is grid power or sufficient solar energy.

5. Is the system installation and maintenance complicated?

• The system's installation is slightly more complex than that of a traditional AC system because it requires connecting both grid AC and solar DC lines, therefore Deye strongly advises having the installation performed by professionally trained technicians.
• Routine maintenance (such as filter cleaning) is similar to that of conventional air conditioners. Through smart control and monitoring functions, users can easily track the system's operational status. Regular professional check-ups will ensure the system maintains peak energy-efficient AC performance over the long term.