Contractors should verify the gas valve model and furnace serial number before installation to ensure the ANGKT555-1 orifice kit aligns with the BTU requirements of the specific burner tray

allowing the ignition sequence to proceed

providing a streamlined venter blower solution that restores proper static pressure and system efficiency

Using it on non-specified units can lead to mounting failure or electrical issues

McDonnell & Miller FS7-4E Switch THPU32HP7Y Contractors should verify the gasThe McDonnell & Miller FS7 4E (Part Number 120100) is a heavy duty industrial liquid flow switch designed specifically for hazardous environments. Featuring a NEMA 7 and 9 explosion proof enclosure, this unit is rated for Class I, Groups C and D, and Class II, Groups E, F, and G, ensuring safe operation in volatile atmospheres. The 1 1 4" NPT brass body utilizes a sealed tube construction and a magnetic switching mechanism to provide reliable SPDT