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Fail-Safe Reliability: The mechanical spring return ensures the valve returns to the normally open position during power loss to maintain system flow
ensuring proper combustion air intake and flue gas exhaustion
This is an electric expansion valve requiring a 24VAC signal from a compatible York controller
Always reference the P72LA-1 wiring diagram located inside the cover for terminal designations
it provides a reliable pneumatic seal for standard vacuum tubing
Heil Quaker ICP 2120368 Wheel 321894-709 Fail-Safe Reliability: The mechanical springThe Heil Quaker ICP 2120368 Blower Wheel is a precision engineered double inlet centrifugal fan wheel designed for high static pressure applications in residential and light commercial HVAC systems. This heavy duty forward curved blower wheel measures 12" diameter by 12" width and features a 1 2" bore configuration. Engineered for a Counter Clockwise (CCW) rotation (viewed from the drive end), this component is a direct replacement for specific Heil,
