Lochinvar & A.O. Smith 100208458 Control Board 318518-761 the direction of the spring-return

the direction of the spring-return is determined by the mounting orientation of the actuator on the damper shaft (CW or CCW)

This Trane 9

This precision-engineered thermal overload switch monitors the electrical current and winding temperatures within the compressor

0 microamp or higher is recommended

you will often see a vacuum on the low-side gauge

Lochinvar & A.O. Smith 100208458 Control Board 318518-761 the direction of the spring-returnThe Lochinvar & A. O. Smith 100208458 Interface Control Board is a critical genuine OEM replacement designed for professional grade hydronic and domestic hot water systems. This high performance interface control board, also identified by the legacy part number RLY20058, functions as the primary communication bridge between the user interface display and the main integrated boiler control. It ensures precise data transmission for monitoring modulation