GRAD Air-Cooled Modular Chiller & Heat Pump Unit

Ultimate All-Weather HVAC Solution for Commercial & Industrial Spaces

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intelligent controls, and eco-friendly operation, making them the ideal replacement for traditional boilers and outdated cooling systems.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  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.