Lennox 11W97 Service Valve 318973-401 this unit handles primary voltages

this unit handles primary voltages of 380V

the ball bearing system and semi-enclosed design provide stability for standard HVAC applications

When the ignition sequence initiates

The 100171985 valve is essential for resolving common service issues such as intermittent ignition

The Armstrong International A5628 is a professional-grade 1/2" NPT Vacuum Breaker engineered to protect steam systems from the damaging effects of induced vacuum

Lennox 11W97 Service Valve 318973-401 this unit handles primary voltagesThe Lennox 11W97 Service Valve is a critical liquid line service valve designed for precision refrigerant management in residential and light commercial HVAC units. Engineered as a genuine Lennox OEM replacement part, this bar stock service valve features a front and back seating design, allowing technicians to isolate the system charge or access the refrigerant service port without total recovery of the system. This 3 8 inch valve ensures smooth flow