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The RCD 347329-754 is a 4-cell aluminum replacement heat exchanger kit designed for Carrier HVAC equipment. Heat exchangers are the core thermal transfer component in a gas furnace, separating combustion gases from the air supply and transferring heat safely to conditioned space. This OEM replacement kit restores original system performance and is typically installed by licensed HVAC technicians during scheduled maintenance or component failure service calls.
This kit is used in residential and light commercial gas furnace applications where the original heat exchanger has cracked, corroded, or otherwise failed. As a direct OEM-specification replacement, it is intended for Carrier HVAC equipment requiring a 4-cell aluminum heat exchanger assembly.
Designed as an OEM-style replacement heat exchanger kit for Carrier HVAC equipment requiring a 4-cell aluminum heat exchanger assembly.
Heat exchanger replacement is a licensed HVAC technician job. Shut off gas supply and disconnect electrical power to the furnace before beginning any service work. Inspect the flue and vent system for obstructions before reinstalling the heat exchanger assembly. After installation, perform a combustion analysis and check for gas leaks before returning the unit to service. Work must comply with applicable local mechanical codes and IFGC standards.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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