Scope; (1): the fan connecting pipeline and installed air conditioning inside, noise is less than 70dB (2): Alternative low centrifugal fan 2000pa below, can be widely used in industrial, civil and other ventilation and dust. MHL3-2A, MPYH-14A (MHTFL-14A) Francis two-speed high-temperature exhaust fan only has the HL-3-2A Ventilator function, but also the ambient temperature in the normal operation at about 280 ℃ 0.5 hours for both ventilation, there can play a dual role in high-temperature exhaust and other exhaust fan impeller, suitable for underground tunnels, underground shopping malls, underground warehouses, and other fire-fighting facilities, and the user's choice by the institute. The advantage of the phone as follows (with the next): ① series in KM3, KM2 Turns way home KMI help normally closed contacts with interlocks performance, only after KMl main contacts open, KM3, KM2 contacts is available closed, thus eliminating the main way back three-phase short circuit. ② flexible control method, both directly in the fire control room start / stop exhaust fan, and on-site spot control, either manually controlled, and self-control. ③ in the drawing motor control way home, after the implementation of the exchange in the winding, A2 termination of the motor in the power of L3 phase, C2 termination in the L1 phase, before exchange, L3 phase power supply is connected to the C1 terminal, so casually There was an exchange wire end of a two-phase, three-phase power supply and then received, Francis exhaust fan, ensure the motor quick-change from low to fall to the same, eliminating the motor reversal. Although the above gear belonging to a level speed, only suitable for screening does not require smooth adjustment to a very changed, but simple control of credible, financial useful to repair the same convenient. The advantage of the phone as follows (with the next): ① series in KM3, KM2 Turns way home KMI help normally closed contacts with interlocks performance, Daqing exhaust fan, only after KMl main contacts open, KM3 , KM2 communication device before closing, thereby eliminating the main way back three-phase short circuit. ② flexible control method, both directly start / stop exhaust fan in the fire control room, and on-site spot control, either manually controlled, high-temperature exhaust fan, and self-control. ③ in the drawing motor control way home, after the implementation of the exchange in the winding, A2 termination of the motor in the power of L3 phase, C2 termination in the L1 phase, before exchange, L3 phase power supply is connected to the C1 terminal, so casually There was an exchange wire end of a two-phase, and then received a three-phase power to ensure the motor quick-change from low to fall to the same, eliminating the motor reversal. Although the above gear belonging to a level speed, only suitable for screening does not require smooth adjustment to a very changed, but simple control of credible, financial useful to repair the same convenient. Daqing exhaust fan, Chen Yu air conditioning, exhaust fan purchase by Wu Cheng Chen-yu air-conditioning Limited. Daqing exhaust fan, Chen Yu air conditioning, exhaust fan buy is wucheng Chenyu Air Conditioning Equipment Co., Ltd. (www.wccykt.com) this year introduced a new upgrade, the above picture is for reference only, please call or pictures on this page contact telephone number, to obtain the latest information, contact: sand manager.