it is engineered to withstand high temperatures and resist corrosion from combustion byproducts

Is the output polarity sensitive

The 5502-136M features a standard 2-1/8 inch "D" stem

Can I use this motor in a Bryant or Payne system

the "R" designation indicates the current manufacturer-spec updated version for the older 667278 model

Honeywell MS7520A2007 Actuator Refrigerant it is engineered to withstandThe Honeywell MS7520A2007 is a heavy duty S20 Series Spring Return Direct Coupled Actuator designed for precise control of dampers and valves in commercial HVAC systems. This 24V damper actuator delivers 175 lb in (20 Nm) of torque, making it a reliable solution for air handling units, economizers, and vent structures requiring fail safe performance. It supports modulating (0 2 10 Vdc), 4 20 mA (with included 500 Ohm resistor), and floating control