The Schneider Electric 2323-504 is a robust pneumatic differential pressure transmitter designed for precise measurement of static pressure or velocity pressure in HVAC air handling systems

this valve is typically used in conjunction with a thermocouple or thermopile to provide the millivolt signal required for the electromagnetic safety shut-off mechanism

a specific LP conversion kit must be utilized to ensure correct orifice sizing and pressure regulation

allowing for immediate troubleshooting before hardware failure occurs

Lennox 36K28 Limit Switch 320074-702 The Schneider Electric 2323-504 isThe Lennox 36K28 is a critical safety component designed for precise thermal regulation within residential and light commercial Lennox furnace systems. This automatic limit switch is engineered to monitor heat exchanger temperatures, effectively interrupting the burner circuit if internal conditions exceed the safety threshold. Operating with a fixed range of 160 190F, it provides a vital fail safe against overheating caused by restricted airflow or