this specific model is a direct acting unit configured for low limit applications

Key Benefits Direct OEM Replacement: Replaces the older 624662 version with updated thermistor technology for precise discharge temperature monitoring

Field Flexibility: Includes a multi-signal actuator that supports proportional

Key Benefits Direct OEM Compatibility: Engineered specifically to replace outdated U217-1216 and 74782 part numbers without modification

This TXV is sized for 3-ton cooling capacities

Lochinvar & A.O. Smith 100109522 Switch 322838-753 this specific model is aThe Lochinvar & A. O. Smith 100109522 Pressure Switch is a critical safety component designed for precise pressure monitoring in high efficiency boilers, furnaces, and water heaters. This SPDT pressure switch (Single Pole Double Throw) features a fixed set point, typically calibrated to 0. 95 WC, ensuring that the combustion blower is moving sufficient air before the ignition sequence initiates. As a genuine OEM replacement part, the 100109522 is