Description

The Blue Star 5.5 TR (66,000 BTU/hr) Ductable AC – Model DSA661RT is a heavy-duty, ceiling-concealed ducted air-conditioning system crafted specifically for larger commercial spaces like offices, showrooms, and conference rooms. This unit comprises a compact indoor blower assembly equipped with a centrifugal high‑static fan, enabling efficient air distribution across long duct runs and multiple zones. Powered by a robust scroll compressor and designed for 3-phase electrical supply (around 380–415 V, 50 Hz), it delivers reliable performance even in high-heat conditions. The system uses R‑22a refrigerant, featuring durable, corrosion-resistant copper coils with aluminium fins, and is controlled via an intelligent microprocessor-based controller that supports thermostats, auto-restart, and integration with building management systems.Built with maintainability in mind, the unit includes easily accessible panels for filter cleaning and servicing, alongside vibration-isolated motors and powder-coated galvanized steel panels that withstand harsh environments. The specified copper pipe dimensions (7/8″ suction, 3/8″ liquid) ensure optimal refrigerant flow, while the unit’s design accommodates ambient conditions up to 50 °C.
. Overall, the DSA661RT offers a powerful combination of high cooling capacity, quiet operation, energy efficiency, and seamless integration into ducted HVAC installations—making it an excellent choice for offices seeking unobtrusive yet effective climate control.