Trane AY28X079 Cooling Kit 319847-401 This pump features a standard

This pump features a standard 2-inch flange designed for commercial 2-bolt circular patterns

and Payne residential heating systems

venting flue gases out of the heat exchanger to ensure safe operation and prevent pressure switch trips

Its foot mount transformer design allows for a secure

it maintains an operational temperature range of -40°F to 122°F

Trane AY28X079 Cooling Kit 319847-401 This pump features a standardMaintain 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