including the SmartThermostat with voice control

making it compatible with a wide range of Sterling and Beacon-Morris TF

This hot surface ignitor (HSI) is factory-calibrated to provide consistent milliamp draw for flame rectification circuits within Lochinvar and A

providing stable throttling or on-off control in HVACR and process environments

Simplified 2-Wire Install: Non-polarized lead wires allow for rapid integration into the run capacitor circuit without complex rewiring

Trane SWT1257 Limit Switch 318973-401 including the SmartThermostat with voiceThe Trane SWT1257 Limit Switch is a critical safety component designed for heavy duty furnace high limit switch applications. This genuine OEM Trane part (also referenced as SWT01257) functions as a normally closed thermal protector that triggers an automatic shutdown if heat exchanger temperatures exceed safe operating parameters. Rated with an L160 30F fixed set point, the switch is engineered to open at 160F and features an auto reset mechanism