Heating and cooling air cooled screw unit
1.Free of machine room, less initial investment.
Installed outdoors, no need to build a separate room, no need cooling towers, no need to drill Wells or bury pipes, thus reducing the initial investment of the user.
2. High efficiency, energy saving, environmental protection and safety
Air-cooled screw cold (hot) water unit compared with electric heating can save electricity 75%. Compared with traditional boiler equipment, no combustion,Burning, no exhaust emissions, no flammable and explosive safety hazards.
3. Wide range of operation, strong applicability
According to different needs, a variety of models are available, it can be stable heating operation at -35 ° C ambient temperature, at -30 ° C ~ 48 ° C Stable cooling operation at ambient temperature
4. Intelligent control, no need for special duty
Intelligent control system monitors the operation status of the unit in real time, and automatically adjusts the energy of the unit according to the actual load demand, without the need for special duty, saving labor cost.
5. Multiple protection functions to ensure reliable operation of the unit
With multiple protection function, when failure, real-time automatic alarm
Heating and cooling air cooled screw unit
GRAD Commercial Air Source Heat Pump | Air-to-Water Heat Pump Chiller
Our GRAD air source heat pump unit, a versatile air-cooled screw heat pump chiller for commercial HVAC projects, is equipped with an independently developed NB-IoT IoT remote intelligent control module for full smart cloud management. Operate the whole air-to-water heat pump system remotely anytime via smartphone mobile APP; no on-site dedicated maintenance staff is required for constant monitoring. This smart HVAC heat pump supports real-time fault prediction, automatic early warning alerts and one-click online system diagnosis, greatly lowering post-operation labor costs for hotels, malls and industrial plants.
This cold-climate air source heat pump delivers stable high-efficiency operation under an ultra-wide ambient temperature range of -30°C to 43°C, with a maximum outlet hot water temperature reaching 60°C to meet diverse space heating demands. Compatible with multiple terminal heating & cooling terminals, the modular air source heat pump perfectly matches radiator heating, underfloor radiant floor heating and central air conditioning systems for all-year cooling and heating integration.
Adopting our national patented intelligent automatic defrosting technology, this industrial air-to-water heat pump accurately monitors coil frost accumulation through multi-point temperature & humidity sensors, triggers rapid targeted defrost cycles only when necessary. It effectively cuts defrost frequency and drastically shortens defrost duration, maintaining steady heating capacity in cold winter environments without frequent heat supply interruption.
Beyond intelligent IoT control and patented smart defrosting, our GRAD air source heat pump chiller owns exclusive competitive edges: customizable modular combination design, no dedicated mechanical equipment room required for installation, eco-friendly renewable energy performance, high COP energy-saving efficiency, ultra-low noise operation and wide cross-industry application coverage. Ideal for commercial central air conditioning and industrial process heating & cooling projects globally.
Application
Air-cooled screw chillers feature tower-free, space-saving design, ideal for water-shortage areas, commercial HVAC & industrial process cooling. Widely applied in hotels, malls, data centers, factories, pharma, food & electronics with stable all-year temperature control.
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.
