whereas the TC-L (Lower) valve acts as the primary restriction point for the lower equalizing line and typically houses the blow-down valve connection

and Coleman equipment where debris or oxidation has compromised the original fuel delivery

must be upgraded to ensure total system compatibility

While primarily designed for potable water tempering

Reliable Switching: Features a durable Single Pole Single Throw (SPST) contact configuration for consistent signal feedback

Carrier 320734-701 Wiring Harness 321702-401 whereas the TC-L (Lower) valveThe Carrier 320734 701 Wiring Harness is a critical OEM component designed for high voltage and signal distribution in residential furnaces and air handlers. This blower motor wiring harness features a high temp insulated jacket and multi pin connectors specifically engineered for long term thermal cycling within the blower compartment. This Carrier replacement harness ensures a secure, low resistance interface between the furnace control board and