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this module is designed to interface with constant torque and multi-speed ECM blower motors
this is an emergency safety relief valve only and should never be utilized as a pressure regulator or operating control
any scoring or erosion inside the orifice will compromise flow accuracy
Expandable Architecture: The base 6-zone configuration can be expanded up to 12 zones using zoning expansion modules
Trane CNT5133 Control Board 321894-708 this module is designed toThe Trane CNT5133 Control Board is a critical OEM 1 stage ignition control board designed for high reliability direct spark ignition (DSI) in residential furnaces and packaged units. As a direct replacement for the CNT05133 and D674711P01, this board functions as the central logic unit, managing the precise timing of the single stage heating sequence, including inducer motor engagement, flame sensing, and gas valve regulation. Engineered for Trane and
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