Lennox 13L09 Wiring Harness 320735-701 Engineered for T-4000 series thermostats

Engineered for T-4000 series thermostats

the HD44AQ273 is the official replacement for the HD44AR252

engineered specifically for high-capacity air handlers and package units

or use a multimeter to test for continuity across the terminals

Enhanced Safety: The manual reset feature prevents unintended gas flow after a power loss

Lennox 13L09 Wiring Harness 320735-701 Engineered for T-4000 series thermostatsThe Lennox 13L09 Wiring Harness is a heavy duty, field ready compressor wiring harness engineered to maintain critical power and signal paths between the compressor and the control board. For contractors dealing with diagnostic ground faults or high resistance heat damage at the terminals, this OEM Lennox replacement part ensures a secure, low impedance connection that prevents voltage drops and premature compressor failure. This harness is designed