LED Diagnostic Indicator: Transparent housing and internal LED allow for quick status checks without a multimeter

leak-proof pneumatic control circuit in demanding building automation environments

Voltage Versatility: Rated for 208-230V applications

preventing false alarms while ensuring V-Fast response during actual fire conditions

Mixing OEM actuators with generic valve seats is not recommended as it can lead to premature motor burnout or leaks

Resideo HR90 Controller 322055-301 LED Diagnostic Indicator: Transparent housingThe Resideo HR90 TheraPro is an advanced digital radiator controller designed for precise hydronic zone management in residential and light commercial applications. This electronic radiator valve actuator utilizes a clear, backlit adjustable display for seamless integration into any HVAC manifold system or standalone radiator setup. Featuring an M30 x 1. 5 connection, the HR90 is compatible with standard thermostatic radiator valves, providing