Advanced HVAC Integration: Supports single-speed fan modes and provides dedicated control for economizers

The Carrier HF27CA033 Economizer Motor is a critical OEM component designed for high-precision airflow regulation in commercial rooftop units and HVAC economizer systems

The integrated spring return actuator provides a critical fail-safe position

ensuring reliability in rooftop applications

The "Pop-Top" mounting mechanism is a significant advantage for contractors

Lochinvar & A.O. Smith 100111100 Kit 320720-756 Advanced HVAC Integration: Supports single-speedThe Lochinvar & A. O. Smith 100111100 Kit is a critical 3" Concentric Vent Kit engineered for high efficiency appliance installations. Designed for use with Lochinvar Knight boilers and A. O. Smith Vertex water heaters, this direct vent termination simplifies the management of intake and exhaust through a single sidewall penetration. Utilizing ULC S636 compliant materials, this kit ensures professional grade durability in demanding HVACR environments.