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Bore Security: The 7/8" fixed bore includes a set screw over the key and a second at 90 degrees to prevent shaft galling and vibration
effectively preventing furnace ignition failure and flame rollout conditions
provided the amperage ratings are not exceeded
meeting strict safety codes for combustion safeguard systems
Resideo HR90 Controller 323080-701 Bore Security: The 7/8" fixedThe 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
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