New air conditioning units each functional segment return air mixing section 1, the new return air position as designed at the ends, respectively, at the top or the left and right side of the set, such as when the sample is inconsistent with this, to provide specific open position. In the new return air control valve can be assembled, the actuator has a manual, electric and pneumatic three types, optionally by the user. 2, the filter section there early, in effect filter two, with a diamond-shaped bag, four peaks bag, can also be equipped with an automatic winding type floor-standing unit, filter wheel with high-quality polyester non-woven fabric, and using filters quick-release mechanism, capping display and alarm devices. New exhaust segment (also known as flat-topped sub-air mixing section) of this paragraph cabinets has been a return valve, the valve before and after the top of the box, each with an exhaust port and a new outlet, and with a control valve, which is: if There are back to fans for the air conditioner return air discharge portion, so that the new wind and a return air mixing ratio as required; when the DC system transition season, a return valve should be closed, fully open the exhaust valves and new valve. Energy recovery segment for dual fan system for the cross-points and exhaust air mixing with energy recovery. The segment has a return valve cabinets, top energy collector, it is a use of the exhaust of cold (hot) to the indirect cooling (heating) fresh air, fresh air through the plate energy recovery, recycled exhaust sensible heat around 60% of energy. Middle section (maintenance section) connection and crew from the transition section of this paragraph internal overhaul lighting. Before air-conditioning unit in the filter segment manufacturers, table cold section, heating section, shall be located in the middle section of the front and rear section muffler. Secondary air segment connecting secondary air tubes in the middle section, the top can be set regulating valves, with manual, electric or pneumatic control mechanism by the user optional, this section may be all and in blower section. Table cold section cooler with four, six, eight calandria structure brass string foil, aluminum foil double flanging ripple edge forms a large bend heat exchanger 60% reduction in welding elbow units, increase the heat exchange power, fixed points of the heat exchanger and rotary two new air unit manufacturers, users can a heat medium steam or hot water as needed optionally. Air conditioning unit air conditioning unit cooling system mainly refers to the main, that such water-cooled chiller, air chiller and so on. And sometimes also known as whole systems, such as central air conditioning system for the air conditioning unit, if it is small (home), it is generally refers to the overall. Cooling system main components are the compressor, condenser, evaporator, expansion valve (or capillary, subcooling control valve), a four-way valve, double valves, check valves, solenoid valves, pressure switches, fusible plugs, the output pressure regulating valve , pressure controller, storage tank, heat exchangers, collectors, filters, dryers, automatic opening and closing, closing valves, liquid injection plugs and other components. Electrical system main components are motors (compressors, fans, etc. use), operating switches, magnetic contactors, chain relay, over current relay, Thermal overcurrent relay, temperature regulator, humidity regulator, temperature switch (defrost, to prevent frozen and other use). Compressor crankcase heater, water relays, computer boards and other components. Control system consists of a plurality of control devices, which are the: Refrigerant Controller: expansion valves, capillary. Refrigerant loop controllers: four-way valve, check valve, double valve, solenoid valve. Refrigerant pressure controller: Pressure opening and closing, the output of the pressure regulator valve, pressure controller. Motor protection: overcurrent relays, thermal dynamic overcurrent relay, temperature relay. Temperature regulator: The temperature position adjustment, temperature proportional regulator. Humidifiers: Humidity bit regulator. Defrost control: defrost temperature switches, defrost relay, various temperature switch. Cooling water control: without water relays, water regulating valves, pumps and the like. Alarm Control: over-temperature alarm, over wet alarm, undervoltage alarm and fire alarm, smoke alarm. Other control: Indoor fan speed controller, the outdoor fan speed controller. One-piece unit, Dingrui air conditioning (online consultation), the unit is provided by wucheng Dingrui Air Conditioning Equipment Co., Ltd .. Wucheng Dingrui Air Conditioning Equipment Co., Ltd. (www.wcdrkt.com) (www.wcdrkt.com) is an industry leader in Shandong Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness , the maximum meet customer needs. In Dingrui air conditioning leadership with the staff warmly welcome all inquiries negotiations to create Dingrui air conditioning better future.