–Samurai Chillers: Power, Innovation and Comfort for large-scale projects

In terms of air conditioning, an outdated building stock can lead to energy costs and occupant discomfort.

By upgrading HVAC production equipment and distribution systems, it is possible to improve the energy efficiency of the building and significantly reduce power supply costs, as well as the maintenance costs associated with poorly maintained facilities.

For large-scale projects, Hitachi has a wide range of chiller types ideal for air-conditioning different spaces such as offices, hospitals, hotels, data centers, etc.

A flexible and cost-effective HVAC solution

Hitachi Samurai Chillers are the perfect solution for air-conditioning large commercial and industrial buildings due to their high capacity and energy efficiency, eliminating noise and refrigerant hazards near occupied spaces.

In addition to their renowned energy efficiency, flexibility and ease of installation, these chillers have a number of unique features that make them the ideal choice to meet the most demanding needs:

Samurai L: Power for large-scale projects

The Samurai L model is especially useful for large-scale projects, thanks to its cooling capacity ranging from 160 kW to 360 kW in the air/water version, from 140 kW to 250 kW in the water/water version and from 135 kW to 215 kW in the remote condensing version. With its high-precision water temperature control, it is ideal for process applications requiring precise regulation.

Samurai M: Flexibility for different applications

The Samurai M model offers versatility in chilled water production, making it suitable even for challenging environmental conditions. With capacities ranging from 44 kW to 254 kW, it can be cascaded up to a total of 4 MW of power by interconnecting several modules. Its compact modular design allows precise configuration to meet individual project requirements.

Samurai S: Ideal for small and medium-sized projects

The Samurai S model is the perfect solution for small and medium-sized projects, with heating and cooling performance ranging from very low to moderate temperatures. With a modulation range of 15% to 120%, it precisely matches thermal demand, resulting in more efficient energy consumption. In addition, its modular design facilitates the cascading of up to 4 units.

High Level Performance: Hitachi Samurai Chillers stand out for their market-leading performance, providing optimum power for air-conditioning large buildings. With capacities ranging from 160 kW to 360 kW in the air/water version, and from 140 kW to 250 kW in the water/water version, these chillers are capable of maintaining thermal comfort even in the most challenging climatic conditions.

High cooling capacity: The modular and compact design of the Samurai Chillers allows for scalable and adjustable cooling capacity according to specific project needs. These chillers can be cascaded up to a total of 4 MW of power, making them suitable for projects of different sizes and applications.

Advanced control technology: The control of chillers plays a central role in their energy-efficient operation. Hitachi's range incorporates the latest control technology, with features such as an integrated BACNet gateway and a 7-inch touch screen, giving building managers flexibility and optimization of the system's energy performance.

Precise temperature control: Accurate temperature control is critical to maintaining a comfortable environment suitable for occupants. Samurai chillers feature high-precision water temperature control, especially useful in process applications and projects that require precise temperature adjustment.

Heat recovery options: In addition to their energy efficiency, Samurai chillers offer the option of heat recovery, maximizing energy utilization and contributing to sustainable practices. For example, the Samurai L model can be equipped with an additional heat exchanger that allows partial heat recovery of up to 50%, resulting in even more efficient energy consumption.

Guaranteed comfort: the Samurai Chillers' Dynamic Back-Up Control ensures continuous indoor comfort for occupants, automatically adjusting its performance to maintain an optimal temperature at all times.

Low noise level: the inverter technology of the Samurai Chillers allows them to be one of the quietest chillers in the market. This feature is crucial to maintain a comfortable environment in inhabited buildings, avoiding discomfort from the noise generated by the cooling equipment.

Protection against adverse conditions: to cope with extreme weather conditions, Hitachi chillers are equipped with features such as the anti-freeze pump and the automatic fan on/off cycle for protection against snow. These features ensure that the chiller operates efficiently and reliably even in adverse weather situations.

With their power, innovation and comfort, Hitachi Samurai Chillers are positioned as a reliable and efficient choice for large-scale HVAC projects. If you are looking for advanced technological solutions and optimal performance, Hitachi Samurai Chillers are the perfect choice to maximize occupant comfort and building energy efficiency.

Case Study: The Maritim Hotel in Malta. Building refurbishment with Hitachi SIGMA, YUTAKI & SAMURAI air conditioning solutions.

We take the success story of the Maritim Antonine Hotel & Spa as an example. The outdated Hitachi chillers were replaced with two new-generation Samurai chillers to ensure reliable space cooling and heating. Thanks to the incorporation of advanced modulation technology, the compressor load always matches the requested load, thus achieving an accurate chilled water temperature without the need for costly inverter devices. This new system significantly reduced the carbon footprint of the hotel building.