000 BTU rating is National Board certified to meet ASME Section IV requirements for hot water heating boilers

Is this unit intended for suction line or liquid line installation

the 302-084 is a mechanical rebuild kit for the wetted internal parts

The SPDT fan relay provides a common terminal that switches between two distinct paths (NO and NC)

Simply disable the low-limit function via the digital interface to use it in cold-start applications

Carrier HN51JD024 Contactor 328140-751 000 BTU rating is NationalThe Carrier HN51JD024 Contactor is a high performance 1 Pole 40 Amp 24V switching component engineered for demanding HVACR applications. Designed for single phase electrical loads, this OEM replacement contactor features heavy duty silver cadmium oxide contacts to resist pitting and welding under high amperage cycles. The 24V control coil is optimized for 50 60Hz operation, ensuring seamless integration with standard residential and commercial low