High Efficiency Air Cooled Screw Chiller

High Efficiency Air Cooled Screw Chiller

Product introduction

Air-cooled screw type cold (hot) water unit is based on air as a cold (hot) source, water as a refrigerant, it can be cooling and heating, and can run all year round, with environmental protection, energy saving, comfortable, stable characteristics.

GRAD air-cooled screw cold (hot) water unit embodies the essence of design, manufacture and application, the unit has low temperature, strong heat, multiple protection Freezing, intelligent defrosting, intelligent control and other core technologies, high operational reliability, wide range of operation, product diversity, widely used in hotels, shopping malls, office buildings,exhibition halls, airports, stadiums and other public places, and can meet the electronic,pharmaceutical, biological, textile,Chemical industry, metallurgy, electric power, machinery and other industries.

Advanatages

• This cold-climate air source heat pump maintains stable heating performance even under ultra-low ambient temperature down to -35°C, ideal for frigid northern regions.

• Equipped with patented intelligent frost detection system for accurate frost sensing, the unit enables fast automatic defrost, effectively lowering defrost cycles and cutting total defrost duration to deliver consistent heating output.

• Supports remote control via dedicated mobile APP, integrated with real-time fault early warning and one-click online diagnosis to cut on-site maintenance costs for HVAC contractors.

• The air-to-water heat pump runs with high efficiency across an ultra-wide working temperature spectrum from -35°C to 43°C, fulfilling year-round cooling and heating demands in all climate zones.

  Boasts superior energy-saving performance with COPh＞2.6, surpassing national standard energy efficiency thresholds; its IPLV(H) reaches Grade 1 energy efficiency standard, ranking among top-tier high-efficiency commercial HVAC equipment.

  Air-Cooled Screw Chiller Full Application Scenarios

• Our air-cooled screw chiller adopts air as the heat dissipation medium, requiring no cooling tower, cooling water pump or dedicated machine room, with simple installation and low civil engineering cost. It runs stably under wide ambient temperature and perfectly matches multiple commercial and industrial cooling demands.

• 1. Commercial HVAC Central Air Conditioning

• Perfect for large public buildings without abundant water resources or limited indoor space:

• Hotels, resorts, shopping malls, office buildings, exhibition centers, airports & railway stations

• Hospitals, schools, stadiums, commercial complexes, cinemas and entertainment venues

  Advantages: Low noise, modular combination, flexible load adjustment, clean system without cooling tower bacterial contamination risks.

• 2. Data Center & 5G Base Station Constant Cooling

• Suitable for edge data centers, medium-sized IDC computer rooms, communication equipment stations that need year-round stable cooling. Avoids tower scaling & water leakage risks to protect precision servers.

• 3. Industrial Process Precision Cooling

• For factories in arid, water-restricted coastal & inland zones, supporting accurate constant temperature production:

• Plastics & rubber: Injection molding, extrusion, blow molding mold temperature control

• Electronics & electroplating: PCB production, anodizing, precision component cooling

• Food & beverage: Dairy, beverage fermentation, meat seafood processing, cold storage pre-cooling

• Pharmaceutical & laboratory: Clean room air conditioning, reagent constant temperature control

• Chemical, textile, printing, CNC laser cutting, concrete batching plant cooling

• 4. Special Geographic & Site Scenarios

• Water-deficient regions, islands, mining parks with limited industrial water supply

• Roof-mounted outdoor projects, temporary construction cooling, mobile production lines

• Coastal corrosive environment with anti-corrosion fin coating optional for long service life

About Us

Establised in 1993, GRAD Group covers an area of 1.15 million square meters and has more than 2,000 employees, with an annual output value of nearly 4 billion yuan. GRAD Group's main business: central air conditioning chiller and terminal products, FRP water tank, FRP winding pipe, FRP storage tank, wind turbine cabin cover, environmental protection equipment, and other more than 130 varieties. GRAD Group is the pillar enterprise of the “Dezhou Central Air-Conditioning City” named by the China Refrigeration and Air-Conditioning Industry Association. It ranks the top 10 among central air-conditioning enterprises in the country, The top 3 composite material enterprises，and gets the first-class qualification for the installation of national electromechanical equipment and the second-class qualification for air purification engineering. GRAD Group can undertake central air conditioning engineering, purification engineering construction.

Our services

Before-sale services:   

(1) Tell customers how to use our products and matters needing attention.

(2) Guide customers to choose the best and economic product, recover the investment within short time.  

(3) Site inspection if you need. 

In-Sale services:   

(1)Quality control must be inspected strictly.  

(2)In accordance with the agreements stipulated in the contract.   

After-sale services:   

(1) If the project needs our installation guidance, we can send our engineer and translator. We can also send customers installation video to teach them how to fix and operate with 

our product.  

(2) Usually, our product warranty is 18 months after leaving factory or 12 months after installation. within this months, all parts broken will be responsible for our factory.

(3) Regular contact with customer, consult with the customer feedback, come true with 

the customer's two-way communication.