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Normally Open Fail-Safe: The N/O configuration is ideal for heating applications where maintaining flow during a signal failure is a safety priority
The York S1-031-01232-700 Temperature Sensor is a precision 10k ohm thermistor designed for high-accuracy thermal feedback in residential and light commercial York HVAC equipment
This module is specifically engineered for direct spark ignition (DSI) configurations
The two-position control architecture ensures precise hydronic flow regulation while the spring return valve body design provides a reliable fail-safe position upon power loss
Williams P500409 Wire 319847-401 Normally Open Fail-Safe: The N/OProfessional grade furnace maintenance requires exact electrical specifications, and the Williams P500409 Wire Assembly delivers the necessary conductivity for high demand heating systems. This OEM wire harness is engineered specifically for the Williams Vented Hearth Heater series, ensuring a precise match for internal circuitry. Designed to facilitate consistent power distribution and signal integrity, the P500409 is a critical component for
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