This unit serves as a critical Ranco V6 replacement part for legacy and current production systems

The integration of a Tefzel characterized disc ensures a true equal percentage flow characteristic

For veteran contractors managing high-efficiency hydronic systems

frequent pressure switch faults

this 2 speed condenser motor is designed for systems utilizing dual-speed fan controls

Lochinvar & A.O. Smith 100189280 Control 323080-701 This unit serves as aThe Lochinvar & A. O. Smith 100189280 Control (model CONTROLINTERGRATEDFTX400) is a critical integrated logic component designed for high efficiency condensing boilers and water heaters. Engineered for precise HVAC system communication, this control board manages modulating burner firing rates, blower speeds, and pump sequences to maintain optimal thermal efficiency. Replacing an OEM 100189280 circuit board ensures your FTX high efficiency boiler