Confirm 24V power at the actuator

Enhanced Reliability: Replaces aging or corroded interface modules to restore stable communication between the furnace logic controller and the thermostat

What are the primary applications for the RB3-0178

Operating on a 13 to 25 psig supply pressure range

the Hoffman FT015H-4 provides continuous drainage and immediate air venting

iO HVAC Controls HD-MOTOR Damper Actuator 321894-706 Confirm 24V power at theThe iO HVAC Controls HD MOTOR is a robust 24V 2 wire actuator designed for professional grade reliability in residential and light commercial zoning systems. As a spring return normally closed motor, it provides a failsafe operation for fresh air dampers, ensuring the intake remains sealed when de energized to prevent unconditioned air infiltration. This motor is engineered as a direct, high performance replacement for the Honeywell M847D ZONE, as