While the 100170436 is rated for both

Using it with third-party controllers may result in inaccurate scaling or hardware errors

High Flow Capacity: A massive 58 Cv flow factor supports industrial heating equipment with high btu/hr requirements

making it ideal for systems requiring a larger pipe connection with lower condensate loads

Carrier 48GS660003 Heat Exchanger 324846-701 While the 100170436 is ratedThe Carrier 48GS660003 Heat Exchanger is a critical OEM replacement part engineered specifically for Carrier 48GS Series rooftop units and gas electric packaged systems. As a veteran technician knows, maintaining the integrity of the combustion chamber is vital for safety and thermal efficiency. This gas furnace heat exchanger is constructed from heavy duty materials designed to withstand repeated thermal expansion and contraction cycles without