Air Cooled Modular Unit | China Manufacturer & Wholesale Supplier
Stable and efficient operation across an ultra-wide ambient temperature range from -30℃ to 43℃.
Equipped with accurate frost detection for fast defrosting. It lowers defrost cycles and cuts down defrosting duration effectively.
Supports mobile APP control, remote operation, fault alarm and online troubleshooting.
Adopts high-efficiency shell-and-tube heat exchange technology. Built-in water side heat exchanger and flow protection, delivering an outstanding energy efficiency ratio.
Versatile for multiple uses, including radiator heating, underfloor radiant heating, and central air conditioning cooling & heating.
Air Cooled Modular Unit | China Manufacturer & Wholesale Supplier
GRAD air-cooled modular units are high-efficiency, integrated HVAC systems engineered for year-round cooling and heating, leveraging cutting-edge vapor injection enthalpy enhancement technology to deliver unmatched performance even in extreme temperatures. Designed and manufactured by Shandong GRAD Group—a trusted Chinese HVAC leader with decades of expertise—these units combine robust reliability, intelligent controls, and eco-friendly operation, making them the ideal replacement for traditional boilers and outdated cooling systems.
Key Features & Advantages
Extreme Temperature Resilience
Stable heating operation at -20°C (-4°F) , with hot water supply up to 60°C (140°F). Cooling capacity boosted by 12%+ via advanced heat exchange optimization, while low-temperature heating COP improves by 20%+ compared to standard units. Operates reliably across -35°C to 48°C (-31°F to 118°F) ambient range, covering 95% of global climate zones.
Modular & Flexible Design
Composed of independent, interchangeable modules for scalable capacity (easily add/remove modules to match load demands). No dedicated 机房 or cooling tower required—units install on rooftops, ground levels, or compact pads, saving 30%+ installation space. Any module can act as master; if one fails, others continue running for zero downtime.
Industry-Leading Energy Efficiency
70%+ lower operational costs than traditional coal/gas heating systems. Intelligent fuzzy control system auto-starts/stops modules based on real-time load, ensuring optimal efficiency at all times. Smart rapid defrost technology minimizes energy waste in winter, maintaining consistent heating performance.
Premium Quality & Durability
Equipped with imported hermetic scroll compressors , high-efficiency finned heat exchangers, and corrosion-resistant hydrophobic coatings (20x better salt spray resistance than standard coils). Multi-level safety protections (overpressure, overheating, low-temperature freeze guard) ensure long-term stable operation. Full compliance with ISO, CE, and GB/T 18430.1-2024 standards, certified for global commercial use.
Smart & User-Friendly Operation
Advanced SYS IoT remote monitoring system enables real-time status tracking, fault diagnosis, and alert management via mobile/PC. Centralized control with 7+ operation modes for customized energy savings. Low-noise fan design (≤65dB) ensures quiet operation in noise-sensitive areas.
Wide Applications
Perfect for hotels, office buildings, hospitals, shopping malls, schools, and industrial workshops. Compatible with fan coils, floor heating, radiators, and air handling units for diverse indoor climate solutions. Ideal for water-scarce regions and projects requiring eco-friendly, low-carbon HVAC systems.
Why Choose GRAD?
As a top-tier Chinese HVAC manufacturer, GRAD delivers cost-effective, high-performance solutions with full technical support and global after-sales service. Our air-cooled modular units blend innovation, reliability, and sustainability—your trusted partner for efficient climate control worldwide.
Shandong GRAD Group Co., Ltd.
As a world-class manufacturer, Shandong GRAD Group specializes in professional HVAC solutions. Boasting 30+ years of manufacturing experience and over 16 years in international trade, we have earned global recognition for technological innovation, reliable product quality and outstanding service.
Our HVAC products are sold to more than 100 countries and regions across the globe. We operate a modern production base covering 500,000 square meters, with a team of over 2,000 experienced staff committed to developing state-of-the-art HVAC technologies. Backed by more than 1,000 authorized patents, we maintain solid strengths in independent R&D and technical innovation.
We customize energy-saving, eco-friendly and high-performance HVAC systems to meet diverse demands for commercial and industrial scenarios.
