Trane AY28X079 Cooling Kit 320788-703 you eliminate the alignment and

you eliminate the alignment and vibration issues often seen with universal alternatives

Mechanical Compatibility: Direct cross-reference for part numbers 86H5601

Built with a 48 NEMA frame and an open air over (OAO) enclosure

4" WC vacuum or pressure is applied

Broad System Compatibility: Serves as an OEM replacement part for many Lennox

Trane AY28X079 Cooling Kit 320788-703 you eliminate the alignment andMaintain critical head pressure and prevent evaporator freeze up with the Trane AY28X079 Low Temp Cooling Kit. This evaporator defrost control is a vital integration for commercial and industrial 4TTR6, 4TTA3, and BYC systems, enabling reliable low ambient cooling down to 30F. By cycling the compressor when the indoor coil approaches frost conditions, this condenser fan cycle control prevents oil dilution and ensures stable HVAC refrigerant pressure