Lochinvar & A.O. Smith 100167799 Control Board Freon If it reads O

If it reads O

For contractors servicing VAV systems

This is a standard 6-inch pneumatic connector

Designed for direct-acting configurations

How do I verify if this transformer replaces my existing unit

Lochinvar & A.O. Smith 100167799 Control Board Freon If it reads OAs a veteran tech, you know that a glitchy boiler often traces back to the primary logic center. The Lochinvar & A. O. Smith 100167799 Control Board is the definitive OEM replacement part for high efficiency hydronic systems. This integrated control board is a direct, drop in successor to the discontinued RLY30043, ensuring 100% circuit board compatibility without requiring harness modifications. Engineered specifically for the Lochinvar Knight