The Armstrong International 175A3 is a high-performance Series A Cast Iron Float & Thermostatic Steam Trap engineered for demanding industrial and HVAC applications

Driven by the LF24-MFT spring return actuator

Using this valve with R-22 will result in improper refrigerant metering and potential system damage

52" WC rating required for safe operation

It features an automatic changeover mechanism triggered by supply pressure: the device operates as 15 psig reverse acting for cooling and transitions to 20 psig direct acting for heating operations

Lochinvar & A.O. Smith 100275562 Ignitor Kit L99H008 The Armstrong International 175A3 isThe Lochinvar & A. O. Smith 100275562 Ignitor Kit is a critical OEM replacement component designed to restore reliable ignition in high efficiency gas fired systems. This complete boiler ignitor replacement kit includes the 100275562 ignitor, a high temperature burner gasket, and necessary mounting screws for a precise, airtight seal. Built for heavy duty commercial and residential applications, this kit is the direct OEM ignition part for Lochinvar