Carrier 329117-703 Transition Assembly 318172-701 the 20-foot bulb should be

the 20-foot bulb should be zig-zagged across the downstream face of the coil

By regulating the F135-30F blower operation

allowing for broad application across various HVAC equipment tiers

ensuring seamless integration with existing control logic boards

the FX series uses a different communication protocol and is not a direct replacement for the legacy 945 series

Carrier 329117-703 Transition Assembly 318172-701 the 20-foot bulb should beThe Carrier 329117 703 Transition Assembly is a critical OEM replacement part designed for high efficiency 90+ RPJ3 condensing furnaces. As a veteran tech, you know that maintaining a gas tight seal at the collector box is non negotiable for proper induced draft performance. This transition assembly facilitates the seamless connection between the furnace's internal components and the venting or drainage system, ensuring that combustion byproducts and