Dc VRF Air Conditioner Smart Central Air Conditioners
Space Saving: Multi-split systems require fewer outdoor units, occupying less space, making them suitable for buildings with limited space.
Easy Maintenance: The modular design of the system facilitates installation and maintenance, reducing maintenance costs.
Long Service Life: The system uses advanced technology and high-quality components, ensuring a long service life and stable, reliable operation.
Introduction to GRAD VRV/VRF Multi-Split Air Conditioning Systems
GRAD VRV (Variable Refrigerant Volume) / VRF (Variable Refrigerant Flow) systems are advanced, high-efficiency HVAC solutions designed for commercial and residential applications, including office buildings, hotels, and large spaces requiring zoned climate control.
Product Range
Outdoor Units
Cooling Capacity: 8–126 kW
Flexible Configuration: Single-unit operation or multi-unit combination for scalability.
Indoor Units
Ducted Type: 1.8–14 kW
Cassette Type (Ceiling-Mounted): 2.8–16 kW
Wall-Mounted Type: 2.2–8 kW
How VRV/VRF Systems Work
Refrigerant-Based Zoning:
A single outdoor unit connects to multiple indoor units via refrigerant piping.
Refrigerant flow is dynamically adjusted based on real-time cooling/heating demands in each zone.
Load Adaptation:
The system modulates compressor speed and refrigerant distribution to match varying indoor loads, eliminating energy waste from frequent starts/stops.
Independent Control:
Each indoor unit operates autonomously, allowing personalized temperature settings per room.
Key Features
1. High Energy Efficiency
Inverter Technology: Compressors adjust speed to match demand, reducing power consumption.
Heat Recovery (Optional): Simultaneous cooling/heating modes transfer waste heat between zones for maximum efficiency.
2. Flexible Installation
Supports diverse indoor unit types (ceiling cassettes, ducted, wall-mounted) to suit architectural constraints.
Long piping runs (up to 150–200 meters) and high elevation differences between units.
3. Smart Control & Convenience
Centralized Management: BMS (Building Management System) integration for large-scale monitoring.
Remote Access: Wi-Fi/APP control, scheduling, and fault diagnostics.
4. Quiet, Consistent Comfort
Low noise levels (as low as 19 dB for indoor units).
Precise temperature control (±0.5°C accuracy).
Application Scenarios
Commercial Buildings: Such as office buildings, shopping malls, exhibition halls, etc., meeting the air conditioning needs of large areas and multiple rooms.
Hotels: Providing independently controlled air conditioning systems to enhance guest comfort.
Residential Buildings: Suitable for large residences, providing efficient and energy-saving air conditioning solutions.
Development Trends
With continuous technological advancements, multi-split systems will continue to develop in terms of energy saving, environmental protection, and intelligence. The future will place greater emphasis on user experience and intelligent system management.
Through the above introduction, we hope you have gained a more comprehensive understanding of multi-split systems. If you have any further questions or needs, please feel free to contact us.
About us
Shandong GRAD Group Co., Ltd. is a leading global manufacturer specializing in HVAC (Heating, Ventilation, and Air Conditioning) solutions. With over 30 years of production experienceand 16+ years in international business, we have built a strong reputation for innovation, reliability, and excellence. Our products are exported to 100+ countries, demonstrating our commitment to quality and customer satisfaction worldwide. Operating from a 500,000 sqm state-of-the-art production facility, we employ 2,000+ skilled professionals dedicated to delivering cutting-edge HVAC technologies. GRAD Group holds 1,000+ patents, underscoring our leadership in R&D and technological advancement. Whether for commercial, or industrial applications, we provide energy-efficient, sustainable, and high-performance HVAC solutions tailored to global market needs.
Why Choose GRAD?
✔ 30+ Years of HVAC Expertise
✔ Strong International Presence (100+ Countries)
✔ Advanced Manufacturing with 500,000 sqm Facility
✔ 1,000+ Patents for Innovative Solutions
✔ Commitment to Quality & Sustainability At GRAD, we strive to create comfortable, efficient, and environmentally friendly climate control systems for a better future. For more information, visit our official website or contact us directly.
