The Hitachi Self-Contained Packaged AC (RUA Series) is the definitive solution for large-scale projects in Bangladesh that require high-tonnage cooling with a simplified installation process. Unlike split systems that require complex piping between indoor and outdoor units, the RUA series houses everything in a single, factory-completed cabinet. This design is specifically suited for the sprawling industrial zones and commercial hubs of Dhaka and Chittagong.
High-Efficiency Engineering & Reliable Performance Every unit in the RUA series is powered by Hitachi’s latest high-efficiency scroll compressors. To maximize heat exchange in the humid South Asian climate, the condensers have been upgraded with step fin technology, and the evaporators feature inner grooved tubes. These improvements ensure that the system delivers a massive cooling capacity while maintaining low noise levels and high energy efficiency.
Ready-to-Operate: Rapid & Low-Cost Installation The "one-piece" design of the RUA series makes it one of the easiest systems to install on-site. It comes with pre-drilled duct flanges for supply and return air, meaning only the final duct connection and power supply are needed. This "plug-and-play" industrial approach drastically reduces labor costs and speeds up project commissioning for fast-track business developments.
Weather-Resistant for Extreme Environments Industrial units in Bangladesh often face harsh weather, from monsoon rains to intense sun. To combat this, Hitachi glazes the unit’s steel casing with a positive ion electrodeposition coating. This provides a robust shield against rust and corrosion, significantly extending the life expectancy of the equipment and maintaining its professional appearance over years of outdoor exposure.
Comprehensive Day-to-Day Protection To minimize service calls and ensure 24/7 reliability, the RUA series features a wide array of protective devices:
Compressor Safety: High-pressure switches, overcurrent relays, and crankcase heaters protect the heart of the system.
Thermal Management: Discharge gas thermostats and reverse production relays prevent mechanical fatigue.
Fan Protection: Evaporator and condenser fan motors are equipped with thermal overcurrent relays and internal thermostats.
Cycling Timer: A protection relay prevents the compressor from restarting too rapidly, protecting the motor from electrical stress.
Simplified Maintenance & Serviceability Hitachi has designed the RUA series with the facility manager in mind. The unit features rapidly removable service panels and a large internal service space, allowing technicians to perform routine maintenance or inspections quickly and efficiently. Whether installed on a rooftop or along a building wall, the RUA series is a high-value asset that delivers long-term, low-maintenance cooling for any major commercial infrastructure.
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