Ductless Split-Type Multi-Poise Crossover Air Handler Indoor Unit R454B 4 Ton 48,000 BTU 208/230V 1 Phase 60 Hz Performance Series

The Ductless Split-Type Multi-Poise Crossover Air Handler Indoor Unit R454B 4 Ton 48,000 BTU 208/230V 1 Phase 60 Hz Performance Series (D5FUAAH48XAK) is engineered for large-capacity ductless heat pump systems that require ducted air distribution across multiple rooms or zones. This unit operates on 208/230 volt single-phase power and supports upflow, downflow, or horizontal installation, allowing placement in mechanical rooms, ceiling platforms, or retrofit ducted layouts. The R454B indoor coil must be matched with a compatible R454B outdoor heat pump, and capacity alignment should be verified during system design. For installation, technicians should confirm electrical requirements, ensure ductwork is sized to handle higher airflow demand without excessive restriction, plan condensate routing based on orientation, and maintain access to the blower assembly, coil section, filters, and drain connection for service and commissioning.