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Why does the label say 3000 RPM while some specs say 3300 RPM
Precise Negative Pressure Sensing: Fixed -1
It should be positioned as close to the compressor as possible
the 669498001 offers a robust solution for restoring system efficiency
This genuine Johnson Controls component is the professional standard for technicians requiring exact specifications and reliable combustion system performance
Utica-Dunkirk Z99 Control 318973-401 Why does the label sayThe Utica Dunkirk Z99 Control (Main Control Relay Board) serves as the primary logic and distribution hub for specific gas fired boiler configurations. This OEM replacement part is engineered to manage critical sequencing, including circulator pump delays, inducer motor activation, and safety limit monitoring. For technicians troubleshooting intermittent ignition cycles or failure in the boiler control circuit, this board provides the necessary 24VAC
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