and Ducane heating systems

If the new unit is slightly smaller

Extended Lead Prep: The 11

and heating elements within commercial air handling units

Lennox 99M90 Compressor 320788-703 and Ducane heating systemsThe Lennox 99M90 Compressor is a high performance 4 ton scroll compressor designed for demanding residential and light commercial HVACR applications. Operating on a 208 230V single phase power supply at 60Hz, this unit delivers a nominal cooling capacity of 51,000 BTU. As an industry standard Copeland ZP51K5E PFV 130 replacement, it is also verified as the direct successor to the 99M9001 and ZP51K5E PFV 830 models. Optimized for R 410A refrigerant,