First, the product profile
The Air Treatment Unit (AHU) is a centralized air handling system that originates from a forced hot air heating and ventilation system where the equipment is set up and the air is heated by air duct distribution. The basic centralized system is an all-air single-zone system that typically includes fans, heaters, coolers, and filters. Here referred to the AHU, refers to a return air system, the basic work process is: outdoor fresh air and part of the indoor return air after mixing, the filter filter out the air dust, soot, black smoke and organic particles Harmful Substance.
Shandong Century Changlong New Energy Co., Ltd. production of air handling machine implementation of national standards:
JBT - 9066-1999 "cabinet fan coil unit standard"
GB / T14294-2008 "modular air conditioning unit"
GB / T14296-2008 "Air cooler and air heater"
GB50736-2012 "Civil building heating and ventilation and air conditioning design specifications"
And by the State Equipment Quality Supervision and Inspection Center (China Academy of Building Air Conditioning) test, the indicators have reached the national standard requirements.
 Second, the unit features:
1, stable and reliable, practical and strong
2, high mechanical strength, light weight, easy to lift
3, the structure of flexible assembly, easy on-site disassembly
4, the design is reasonable, high heat transfer efficiency
5, beautiful appearance, long life
 Third, the box structure
1, the panel using the overall high-pressure foam technology, the outer and outer panel preform molding, pre-punching polyurethane polyurethane for the overall high-pressure foam, so that the inside and outside the sheet metal and polyurethane to form a whole, with high strength, good insulation properties, sound insulation, Low, anti-corrosion ability and so on.
2, panel and panel connection using galvanized sheet frame support, high mechanical strength, corrosion resistance, beautiful appearance.
3, the panel and the frame and other joints between the seal, the use of high-elastic seal, so that the box sealing is good, low air leakage rate.
 Four, heat exchanger and water tray
1, the use of air-conditioning high-quality brass sets of aluminum fins process, the overall mechanical up tube once completed, the combination of tight, high heat transfer efficiency; fins for the surface of corrugated film, heat transfer efficiency, operation and maintenance, clean and convenient.
2, fin punching for the double flanging, to ensure uniform spacing between the film, air velocity uniformity, uniform heat transfer, considering the wind resistance, water resistance, fan motor power, heat transfer area and other factors, through computer-aided design, Optimal value, waterway flow design to ensure that the different size of the heat exchanger water speed and the temperature difference between the inlet and outlet to maintain a reasonable range, and fundamentally solve the tube water and the problem of gas to ensure safe and efficient use of the user. The use of the United States OAK high-speed press punching fins, red film process added OAK oil in the fin after the formation of natural evaporation, no traces of oil in the unit running the standard wind speed without water.
3, professional heat exchanger calculation software to ensure that the product design more accurate and reasonable.
4, the heat exchanger of the conventional airtight detection pressure of 2.0MPa, the maximum working pressure of 1.6MPa.
5, in addition, for the steam heater fixed end plate on the copper tube perforation designed to the second cuff hole, allowing the heat exchanger copper tube in the unit work can be smooth displacement, so as to prevent the impact of soft drinks, thermal stress is too large to produce The phenomenon of copper tube cracking.
6, the unit of the condensate plate made of galvanized steel, the unit base for the galvanized steel sheet bending forming, the base has a beautiful appearance, high strength, easy to lift, economical and practical features.
 Five, fan
1, the unit selection of the domestic fan for the mechanical parts sentinel air-conditioning fan manufacturers to produce centrifugal fan, the outer rotor fan. All the impeller of the fan are subject to dynamic balance detection, impeller bearings using self-aligning bearings, has been filled with good high temperature grease, long service life. The outer rotor fan selected by the unit has low noise and good aerodynamic performance. The connection structure between the impeller and the volute makes it easy to replace the impeller bearing and the motor.
2, the insulation class of the motor class F, protection class IP45; motor wiring cable with high-strength protection casing and joint protection, good moisture resistance. The lower part of the fan is equipped with a rubber shock absorber, making the whole fan running a small vibration, low noise.
3, the fan and the outlet with a flexible connection, and set aside reasonable vibration deformation space, reduce fan vibration, noise transmission.
 Six, filter
According to the needs of users can be equipped with the initial effect, the efficiency of the filter, for the general requirements of the unit are equipped with early effects filter.
The initial filter is generally a plate structure, the filter frame for the galvanized plate pressure type, both sides with pressure galvanized steel mesh to strengthen the internal filter for the nylon convex network. The material is non-flammable, the filtration efficiency G2 (weight efficiency ≥ 60%), the initial resistance 75Pa, the final resistance 150Pa, the filtration efficiency F5 (counting efficiency 50%; according to the filter performance), the efficiency filter efficiency Up to F8.
Advanced production and processing equipment:
① high-speed fin production line 4 (processing heat exchanger fin);
② high-precision multi-station CNC turret punch 2, 10 ordinary punch (the unit of sheet metal processing);
③ laser cutting machine 2, CNC hydraulic bending machine 4, cutting plate machine 4 (unit of sheet metal processing);
④ large machine up tube machine 4 (heat exchanger expansion tube, the maximum pipe length of 5 meters);
⑤ copper automatic welding machine 2 (heat exchanger copper welding);
⑥ programmable automatic pipe bending machine 2 (heat exchanger elbow production);
⑦ frame forming machine 1 (the frame of the unit);
⑧ polyurethane foam machine 2 (unit board insulation material foam);
 Seven, reasonable scientific processing technology
  
 Eight, advanced test equipment
Air handling unit testing center with enthalpy difference comprehensive performance testing laboratory. Can accurately test the unit's cooling capacity, heat, air volume, air leakage rate, wind pressure and input power and other parameters.
 Nine, perfect detection means:
A, in full accordance with GB / T14294-2008 "modular air conditioning unit" standard requirements of the unit performance testing;
B, in full accordance with GB / T14296-2008 "air cooler and air heater" standard requirements for the detection of heat exchangers;
C, in full accordance with GB9068-88 "heating ventilation and air conditioning equipment noise sound power level measurement - Engineering Law" standard requirements for unit noise detection;
D, in full accordance with GB50243-2002 "ventilation and air conditioning construction quality acceptance criteria" standards for construction and acceptance.
E, in full accordance with JBT - 9066-1999 "cabinet fan coil unit standard" standard for construction and acceptance.