2.3 Remote control type smoke damper (rope-controlled) function as follows: 2.3.1 has a normally closed type smoke damper all the functions can be remote manually open 2.3.2, 2.3.3 manual reset closed rope control. distance standard 6m (long can be customized) 2.4 automatic reset type smoke damper functions are as follows: 2.4.1 usually was normally closed, fire dampers when the fire broke wholesale, by the control center DC24V power input, the valve automatically opens 2.4. 2 When the pipe temperature reaches 280 ℃, the fuse action, the valve automatically closes. 2.4.3 can be manually turned on. After the 2.4.4 valve open, without manual reset, simply enter DC24V power, the valve can be automatically reset to its original closed position (this function is limited to the temperature sensor is not operating before, such as temperature and motion sensors need to be replaced after the temperature sensor can still use this feature). 2.4.5 Output valve open signal, interlock control exhaust fan start and stop. dampers, air, fire dampers, flanges, Corner, and other accessories are factory direct products dampers principle, lower than the market price around. Welcome to inquire product performance and technical parameters. The company recruit agents, (each market real shop decent fire dampers, fire dampers installation engineering indirect units, the construction unit, decoration decoration companies, etc. can be) please contact the owner, thank you! One of the product is to use the exhaust valve and the exhaust port module canceled vent louvers into monolayer; second method is to normally closed damper on each electric charge of the smoke into the normally open 280 degrees Close the damper, the control module to the general monitoring module. Both methods achieve the same fire code requirements, and the actual control is also very reliable. Damper effect, Rui Xincheng air conditioning (certified), provided by the Texas Rui Xincheng lingwu damper Air Conditioning Equipment Co., Ltd. Texas Rui Xincheng Air Conditioning Equipment Co., Ltd. (www.dzrxckt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Rui Xincheng conditioning in leadership with the staff warmly welcome all inquiries negotiations to create a better future Rui Xincheng air conditioning.