AHU Unit
1. High efficiency and energy saving
According to customer requirements, variable frequency compressors can be adopted, which have high energy efficiency. PLC programming supports different communication protocols and multiple modes to choose from
2. Simple and easy operation
The control system is advanced. The hand controller can be installed in the control room and supports remote operation
3. Safe and reliable
It features functions such as over-temperature protection for compressor exhaust, overload and overheating protection, high and low pressure protection, over-temperature protection for electric heating, and password protection
4. Complete range of varieties
Cold (hot) air type, constant temperature and humidity type, etc. can be selected as needed to achieve year-round cooling
AHU Unit
Overview
GRAD AHU Unit covers vertical (air volume from 2000 ~ 60000m3 /h), horizontal (wind increased from 2000 ~ 60000m3/h), and ceiling-type (air volume from 1000 ~ 16000m3/h) three series of air-handling unit to meet customers’ need of cooling, heating, humidification, dehumidification and so on. It is widely applied in hotels, theaters, shopping malls, office buildings and a variety of places requires comfortable environment. It also can be used in electronics, chemical, medical, pharmaceutical, cigarettes, food, light engineering and other industrial buildings.
The characteristics of air-handling units
★Frame structure
The unit adopts aluminum alloy frame structure or metal frame structure, it has the following features:
A: Good performance in mechanical strength, light in weight, corrosion resistance, beautiful shape and accurate size.
B: Flexible assemblage, very convenient to install, remove and maintenance. Also, it has longer service life than steel structure.
★Panel structure
A: The panel is formed by two layers of colored steel plates. Filler between the layers is high-density polyurethane or polystyrene, which has a better performance in thermal isolation than other materials like glass wool. o ̀ thermal bridge will be produced while working in all weather or working conditions.
B: panels are fixed in a special way, with sealing material to strengthen its thermal and air resistance. This structure has the best performance in thermal isolation, noise reduction and intensity, so it can be used in places require high quality of air
★Filter:
Unit filter is coarse plate. Filter material is cleanable convex Nylon net.
★Cooler
The selected parameters of surface air cooler are designed by CAD/coi1 software. The standard cooler normally has copper pipes of φ6. It is tightened by an overall rise up of brass strung by corrugated aluminum fin tubes. Staggered copper pipes have good heat transfer performance, low airflow resistance and superior corrosion resistance, ensuring the cooler has a higher heat transfer coefficient and a longer life.
Company Information
GRAD Group devotes itself to be a central air conditioning customization expert around you and provides you a comprehensive energy solution, GRAD possesses national mechanical and electrical equipment installation Class I qualification and purification equipment installation Class II qualification. GRAD has the overall project contacting ability. It has contracted national class and provincial class technology research projects for many times. The accumulated patents for technolog achievements has passed 110 items. There are more than 300 senior engineers available for central air conditioning design and solution. The 700,000 ㎡ manufacturing base includes the whole central air conditioning series: from chiller to terminal products. The high efficient falling film centrifugal chiller maintains domestic leading position and the large fan wall air handling unit has filled domestic blank and been listed in the national torch plan. GRAD has the national class air conditioning testing center and has passed CNAS certification. The products quality can be well guaranteed. Some of projects gained China Construction Project Luban Prize and National High Quality Project. At the same time, GRAD has established more than 30 offices all over China, such as Beijing, Tianjin, Shenyang, Xi’an, Wuhan, Nanjing, etc. The sales, design, installation and after sales network has covered every corner of China. Moreover, its products have been exported to more than 100 countries.
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.
