This specific model (325-5L-1) typically requires a 12A39 vent limiter for indoor use without a vent line to the atmosphere

While this is a single-timing sequencer

it ensures your system maintains its original engineering specifications and operational efficiency

Compare the readings against the Maxitrol resistance chart relative to the ambient temperature

always verify the maximum pressure and temperature ratings against your specific steam system requirements before installation

Belimo TFRB24-SR Actuator R-410A This specific model (325-5L-1) typicallyThe Belimo TFRB24 SR is a compact spring return actuator designed for the fail safe operation of dampers and valves in HVAC systems. Providing 22 in lb torque, this proportional control actuator operates on a 24VAC DC power supply and accepts a 2 10 VDC control signal for precise modulation. Built for high reliability applications, it features brushless DC motor technology, ensuring consistent torque delivery and energy efficiency while eliminating