providing precise flow control for its intended applications

the 12V or 24V pilot circuit remains open

ensuring reliable circuit continuity during standard operation

ensuring the pilot safety valve remains engaged under demanding thermal conditions

signaling the integrated furnace control board to continue the heat call

Honeywell 30756150-001 Chart Hub Assembly 30067439-890 providing precise flow control forThe Honeywell 30756150 001 Chart Hub Assembly is a critical component for maintaining the mechanical integrity of circular chart recorders. Engineered for precise chart rotation and alignment, this chart hub kit is essential for field technicians servicing Honeywell DR4500 Classic, DR4300, and DR4200 Truline series recorders. For standard applications, the assembly allows for a simple press fit installation directly onto the motor shaft, securing