... fan coil, damper, and zone valve (2/3-way valve)The hysteresis synchronous motors have such characteristics ... stalled continuously without any damage to motor2) Have spring return function when power off3) Rated voltage: 24V, ... ) Torque: 800 ~ 2,400g.cm 7) Speed: 3, 5, 6rpm 8) Other speeds and torque available for ... 5/6r/min 7)Outout type: Gear/Shaft 3, Hysteresis Synchronous Motor is used to HAVC system ...