MAN / MA-5P The EWC MAN motor is a 2 Position, power-open, power-close actuator. Used on old-style, standard opposed blade dampers sold by EWC, Trol A Temp, Trol-A-Temp, Retrozone, and Honeywell Rectangular dampers. Round dampers with this motor require a different motor with 45 degree travel. For application questions, call Retrozone at 972 633 8973The Man, power open, power close actuator used with old-style, standard opposed blade dampers. MAN actuators are only interchangeable with other MAN style eight terminal motorsThis motor is interchangeable with the Honeywell MSTN motor for Trol-A-Temp or Trol-A-Temp dampers. 24-volt (AC), 6 Volt Ampere (VA), 50- 60-cycle, two-position motor actuator used with all Honeywell AOBD, AOBD-BM, and IOBD automatic opposed blade dampers. MSTN is a uni-directional motor that requires Single-Pole, Double-Throw (SPDT) switching to drive the damper open and closed, common in most zone control panels. It uses a wafer switch to power the synchronous motor for only 30 seconds while the motor is moving between open and closed or vice-versa. When the motor reaches the open or closed position, the internal switches cut off power to the motor. This add is for the motor only, and not the linkage that drives the blade. These older style dampers used no blade bushings and can rattle, or have problems with the non replaceable drive linkage. Due to the high parts cost of the replacement motors, these dampers can be replaced with many different brand new dampers from Retrozone. Contact us for more information, and we will support you on how to install and wire, which is very easy, even on the original trol a temp panels.