Lochinvar & A.O. Smith 100157720 Switch 320819-301 The Johnson Controls TE-6312M-1 is

The Johnson Controls TE-6312M-1 is a high-precision 1k ohm thin-film nickel temperature sensor engineered for demanding HVAC well-insertion applications

Operating at 115V and 60Hz

this unit is optimized for air-over continuous duty

Maintains factory 1075 RPM speed for precise airflow and noise attenuation within the cabinet

typically indicating a "pressure switch stuck open" or "stuck closed" state

Lochinvar & A.O. Smith 100157720 Switch 320819-301 The Johnson Controls TE-6312M-1 isThe Lochinvar & A. O. Smith 100157720 Switch is a critical safety component designed for high performance hydronic systems. This Adjustable High Limit control features a Manual Reset (M R) mechanism, ensuring that the system remains locked out if temperatures exceed the predetermined safety threshold until a technician can perform a diagnostic check. Engineers and field contractors rely on the 100157720 limit switch for its precision in monitoring