leak-proof pneumatic control circuit in demanding building automation environments

Direct Replacement: Designed as a drop-in Field Controls 46487301 match for the legacy Honeywell Q35RJ-1 model

Smith Cyclone series units where maintaining specific manifold pressure and gas-to-air ratios is vital for operational safety

Always verify the cut-in and cut-out differentials against the specific unit service manual to prevent short cycling

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

Resideo HR90 Controller 322055-301 leak-proof pneumatic control circuit inThe 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