Ductless Split-Type Multi-Poise Crossover Air Handler Indoor Unit R454B 1.5 Ton 18,000 BTU 208/230V 1 Phase 60 Hz Performance Series

The Ductless Split-Type Multi-Poise Crossover Air Handler Indoor Unit R454B 1.5 Ton 18,000 BTU 208/230V 1 Phase 60 Hz Performance Series (D5FUAAH18XAK) is engineered to allow ductless heat pump outdoor units to serve traditional ducted air distribution systems. This crossover air handler supports upflow, downflow, and horizontal installation and operates on 208/230 volt single-phase power, providing flexibility for mechanical closets, attic platforms, or ceiling-mounted applications. The R454B coil requires pairing with a compatible R454B outdoor unit, and both refrigerant type and capacity must be verified prior to installation. Technicians should confirm electrical requirements, plan condensate routing based on orientation, and design ductwork suitable for multi-register airflow while maintaining acceptable static conditions. Clear access to the blower assembly, coil, filtration area, and drain connection is required for commissioning and long-term service.