" requiring a full replacement to restore the flame safety sequence

as the internal dimensions of the check and relief valve modules remain consistent

If your 3-15 psig output signal does not align with your HVAC pneumatic controller

Key Benefits Precise Flow Regulation: Factory-set to 3

Provides reliable lockout protection to prevent unburned fuel hazards

Carrier 324645-701 Harness Assembly R-407A " requiring a full replacementThe Carrier 324645 701 Harness Assembly is a critical OEM replacement part designed for precision interfacing within Carrier, Bryant, and Payne HVAC systems. As a genuine factory authorized wire harness, it ensures seamless point to point electrical connectivity, maintaining the integrity of the units control logic and safety circuits. This HVAC wiring harness is engineered to withstand the thermal stress and vibrational demands of high performance