The Maxitrol TS121B is a high-precision discharge air temperature sensor engineered for gas-fired heating systems requiring elevated setpoints between 120°F and 170°F

the GRL1366 ensures a exact fit and straightforward installation

The H-723LC is induced-powered from the monitored line

ensuring accurate thermal response even in hard water conditions

Trane SWT4049 Pressure Switch 322838-752 The Maxitrol TS121B is aThe Trane SWT4049 High Pressure Switch is a critical safety component designed for precise refrigerant circuit monitoring in residential and light commercial HVAC systems. As a genuine OEM Trane replacement part, this pressure actuated switch is engineered to protect the compressor from catastrophic failure by interrupting the electrical circuit when discharge pressure exceeds safe operating parameters. Utilizing a factory calibrated set point, the