1. It adopts the well-known Hitachi vortex compressor, which is of high performance, high frequency cavity and high precision. It has the features of high efficiency, energy saving, safe operation and realiability.
2. It is air cooled type, which can be installed on the balconies, rooftops or on the ground. So it doesn't need special machine room and foundation to facilitate the installation, which is easy to install and saves space.
3. It adopts the latest 180-degree sine wave DC variable-speed drive technology and R410a environment protection refrigerant, which fully meets the RoHS instructions and its design for precise temperature control can brings the users with noble enjoyment.
4. It can carry out rapid cooling or heating and keep the temperature discrepancy within ±0.5°c.
5. The piping for the refrigerant can be as long as 175m. The height difference between the outdoor and indoor units can be as high as 50m and 30m beteween indoor units.The distance between first branch and the farthest indoor uint can be as long as 40m.
5. The new designed turbine fan has lowered the noise.
Shandong GRAD group is the pillar industry in China Central Air-conditioning city(Dezhou). The registered capital is100 million RMB and its present production base covers an area of 450,000sqm with total capital of 3.2 billion RMB and annual production value almost 2.6 billion RMB. There are over 2000 employees, among them, high-level technical personnel is over 300. The GRAD FRP pipe is rewarded as China Top Brand. GRAD brand is National Famous Trademark. GRAD group has gained national electromechanical equipment installation qualification level 1 and purification air-conditioners installation qualification level 2. There are over 130 products, which can mainly be divided into two parts:central air conditioning and FRP compound materials. GRAD is a large enterprise covering product design, production, installation, test and service.
With central air conditioner and compound material as our leading industry, there are 10 factories such as air conditioning chiller, air conditioner, ventilation and SMC factory etc. There are many branch offices as basic points in large and middle cities like Beijing, Tianjin, Tangshan, Shenyang, xi'an, Nanjing etc..And GRAD has built the sales, installation, service and mating system covering the whole nation.
In 2013, GRAD has newly bought another 666.667sqm to realize the following three goals:1 further improve and enlarge the present production scale and capacity; 2 introduce high-end core products and technology; 3 build the production base for outsourcing products, improve the quality of the outsourcing products and guarantee the common interests. We will build the new industrial park into the body park.
GRAD will cooperate sincerely with customers from all over the world.