Description
Carrier 48SS660004 Heat Exchanger Overview
The Carrier 48SS660004 is an OEM replacement heat exchanger engineered to maintain peak thermal transfer performance in compatible Carrier packaged HVAC systems. Designed to meet Carrier’s exacting manufacturing standards, this heat exchanger ensures efficient separation of combustion gases from conditioned air — protecting indoor air quality while delivering consistent heating output.
Key Features
- OEM Carrier replacement part — direct fit for compatible 48SS series packaged units
- Engineered for efficient heat transfer between combustion and supply air streams
- Durable construction designed to withstand repeated thermal cycling
- Helps maintain system efficiency and safe operation by preventing flue gas crossover
- Supports proper combustion airflow and heat distribution throughout the unit
Why Replace Your Heat Exchanger?
A cracked or degraded heat exchanger is a serious safety concern — it can allow carbon monoxide and other combustion byproducts to enter the supply airstream. Replacing a failing heat exchanger with a genuine Carrier OEM part restores safe, efficient operation and extends the service life of the overall packaged unit.
Compatibility
- Designed for use in Carrier 48SS series packaged rooftop and commercial HVAC units
- Consult equipment documentation or a qualified HVAC technician to confirm fitment before installation
Installation Notes
Heat exchanger replacement should be performed by a licensed HVAC professional. Always shut down and lock out the unit before beginning any service work. Refer to the Carrier service manual for torque specifications, gasket requirements, and reassembly procedures specific to your model.







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