Air Cooled and Water Cooled Chiller
1.It can operate stably in an ultra-low temperature environment of -35℃
2. Precise frost measurement, rapid defrosting, reduced defrosting frequency, and shortened defrosting time
3. Mobile APP operation, fault warning, and online diagnosis
4. It operates efficiently within an ultra-wide ambient temperature range of -35℃ to 43℃
5. COPh > 2.6 exceeds the national standard energy efficiency limit value, and IPLV(H) exceeds the national standard first-level energy efficiency
Air Cooled and Water Cooled 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.
The GRAD Air source heat pump unit is equipped with a self-developed NB-iot Internet of Things remote intelligent control module. It can be operated via a mobile phone APP and does not require dedicated personnel to stand by. It also features fault prediction Warning alerts and online diagnosis. It can operate efficiently in an ambient temperature range of -30 ° C to 43 ° C, with a maximum water outlet temperature of 60 ° C. It comes in various terminal forms and is suitable for radiators and floors Radiation, central air conditioning for cooling and heating. The national patented intelligent defrosting technology accurately detects frost, quickly defrosts, significantly reduces the frequency of defrosting, and greatly shortens the defrosting time. In addition, this unit also has unique advantages such as modular customization, no need to build a machine room, environmental protection and energy conservation, high efficiency and low noise, and wide application range.
Product advantage
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
Project Show

Manufacturer:Shandong GRAD Group Co.,Ltd.
Established Time:1993
Covers an area of:700,000sqm
Main products:Central air conditioners,ventilators ,GRP Composite material products,Environment protection products
Employment : 2500+ employees
Registered capital: ¥ 100 million
Equipment price : ¥370 million
Total capital :¥ 925 million
Annual output value: ¥over 3 billion
Design team:300+
Overseas offices:
1. Thailand and Cambodia offices
2. USA branch company
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.










