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specifically the AW151 through AW286 series
Fail-Safe Design: The spring return actuator ensures the damper seals tight whenever the system is inactive
it features a factory-calibrated bimetal sensor for consistent response times
Precise Signal Feedback: Optimized for microamp signal transmission to ensure reliable communication with the ignition control module
Siemens Building Technology 194-3042 Retrostat 321702-401 specifically the AW151 through AW286The Siemens Building Technology 194 3042 is a specialized pneumatic hot water retrostat kit engineered for day night (D N) temperature control in legacy hydronic HVAC systems. Designed specifically for direct acting (DA) pneumatic signals, this kit provides a seamless path for Powers pneumatic thermostat replacement in commercial and institutional facilities. The 194 3042 facilitates dual setpoint operation, allowing for automated switching between
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