it provides precise staging for Lennox packaged units and split systems

the bottom terminals (H1-H2) are for the 24V input

the actuator will maintain its last position

Direct mounting design for quick and secure installation on compatible Belimo actuators

you know that maintaining the linear flow characteristic in large-bore hydronic systems is critical for stable temperature control

Carrier HK44ER221 ECM Module 320720-756 it provides precise staging forThe Carrier HK44ER221 ECM Module is a critical 1 2 HP replacement component for X 13 and Endura Pro blower motors found in high efficiency Carrier HVAC systems. As a genuine OEM replacement part, this module serves as the primary motor control interface, managing speed taps and operational logic to maintain precise airflow across heat exchangers and coils. Designed for 208 230V or 115V applications (depending on system wiring), this ECM motor