you must use the appropriate multi-switch model to maintain proper heat staging

The Carrier HH18HA095 is a professional-grade high-limit pressure switch engineered for precision monitoring in HVACR systems

you will typically require the KR-8112 instead

Key Benefits Universal Compatibility: Engineered as a direct OEM replacement part for diverse Reznor unit heaters and air handlers

though technicians should verify if a new well is required based on the specific boiler tapping

Carrier KH29MD048 Filter Drier Core R-410A you must use the appropriateThe Carrier KH29MD048 Filter Drier Core is a critical Factory Authorized Parts component engineered for high capacity moisture and acid removal in commercial Carrier HVAC and refrigeration systems. Designed for use in replaceable core filter drier shells, this 48 cubic inch block features a high grade desiccant blend optimized for refrigerant moisture removal and the capture of organic acids that lead to compressor burnout. As a genuine OEM