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ensure the 50 sq
As a veteran-grade HVAC memory chip
a failure to close the pressure switch during the pre-purge cycle
this OEM replacement part is essential for verifying proper blower operation and flue venting before the ignition sequence begins
Trane CNT3783 Limit Switch 320074-702 ensure the 50 sqThe Trane CNT3783 Limit Switch is a critical safety component engineered for precise thermal management in high demand furnace and air handler applications. As an OEM Trane replacement part, this SPST (Single Pole Single Throw) device operates on a Normally Closed (N C) circuit, designed to interrupt electrical flow immediately when the system achieves its setpoint. Calibrated with a 220F opening temperature, it serves as a primary high limit defense
US$ 14.95
US$ 20.00
US$ 14.95
US$ 16.95
