The Belimo TFB24-S is a spring-return actuator designed for reliable on/off control in HVAC systems

The extended shank is designed to protrude through the boiler's insulated jacket

allowing for rapid field installation or panel mounting on standard manifold sockets

Common Questions: Is the 20J87 interchangeable with the 20J8701

5 Cv model is optimized for 17 PSI

Carrier HK42ER238 Module 320074-702 The Belimo TFB24-S is aThe Carrier HK42ER238 Module is a factory authorized ECM X 13 Motor Control designed specifically for 1 3 HP constant torque brushless DC motors. As a direct OEM replacement motor module, this component manages the complex switching sequences required to maintain efficient airflow across varying static pressures in Carrier, Bryant, and Payne air handlers and furnaces. For technicians troubleshooting a blower motor not running, this module serves as