Carrier 331930-751 Ignitor Kit 322838-754 Which port should be connected

Which port should be connected to the coil

What is the difference between SPST and SPDT in these controls

What is the maximum pitch for this sheave

this part number replaces several legacy McQuay and Daikin fractional motors

making it the industry standard for R-22

Carrier 331930-751 Ignitor Kit 322838-754 Which port should be connectedThe Carrier 331930 751 Ignitor Kit is a professional grade silicon nitride furnace ignitor designed to replace traditional silicon carbide components in 33. 5 inch mid efficiency gas furnaces. As a genuine OEM replacement part, this 120V hot surface ignition (HSI) assembly provides superior thermal shock resistance and accelerated heat up times, ensuring consistent combustion in Carrier, Bryant, and Payne systems. This technical upgrade kit includes