Chillers

Hitachi Cooling & Heating provides HVAC with a wide range of Chillers, giving customers more flexibility to choose a central cooling solution.

Stay cool and comfortable with Hitachi's global chiller expertise

Chillers are ideal for large commercial and industrial buildings due to their high capacity and energy efficiency, and they eliminate noise and refrigerant risks near occupied spaces. Hitachi offers a diverse range of chiller systems with tonnage capacities from small (3-5RT) to large (3000RT), including air-cooled and water-cooled, compressor types of scroll, screw, and centrifugal chillers, and absorption chillers. Hitachi has global manufacturing capabilities and provides worldwide services. In addition to chillers, Hitachi also offers a comprehensive selection of airside products, including fan coil units and air handling units for space conditioning and ventilation.

Explore our range of Chillers

Cooling Capacity
3-470RT
Heat rejection method
Rejects heat directly into the atmosphere using a fan and a heat exchanger
Energy efficiency
:icon_3-points-5
Size and capacity
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Maintenance requirements
Lowest maintenance and infrastructure requirements
Installation Location
Rooftops or in well-ventilated machine rooms.
Applications
Offices,
Hospitals,
Hotels,
Data centers
Cooling Capacity
8-520RT
Heat rejection method
Rejects heat via a water loop to a cooling tower where the heat is released into the atmosphere
Energy efficiency
:icon_4-points-5
Size and capacity
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Maintenance requirements
More components, infrastructure and maintenance required.
Installation Location
Mechanical room in the building, with a water cooling tower on the rooftop.
Applications
Offices,
Hospitals,
Universities,
Industrial applications
Cooling Capacity
300-3000RT
Heat rejection method
A water-cooled chiller that uses a centrifugal compressor providing higher efficiency and capacity.
Energy efficiency
:icon_4-points-5
Size and capacity
:icon_4-points-5
Maintenance requirements
Requires specialized maintenance due to the use of a centrifugal compressor
Installation Location
Same as water-cooled chiller.
Applications
Large office buildings,
Industrial applications,
Buildings with high cooling loads,
District cooling systems
Cooling Capacity
30-2000RT
Heat rejection method
Uses a heat source to drive the refrigeration cycle and typically
rejects heat via a water loop.
Energy efficiency
:icon_3-points-5
Size and capacity
Varies in size and capacity depending
on the heat source used.
Maintenance requirements
Requires maintenance of the heat source and heat exchangers.
Installation Location
Can be installed in both indoor and outdoor locations,
Applications
Industrial processes requiring waste heat recovery,
Buildings with steam or hot water available as an energy source,
Buildings with a focus on energy efficiency and sustainability,
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A wide range of Chillers: Air-cooled, Water-cooled, Centrifugal and Absorption

Hitachi's Chiller portfolio offers up to 4 different types of chillers, including Air-cooled Chillers, Water-cooled chillers, Centrifugal and Absorption chillers. The AVSY series, moducar air-cooled chiller, can connect to 16 units, with a total capacity ranging from 65kW to 2,064kW, making it perfect for medium or large spaces, while the absorption chillers are ideal for use in the processing industry and for district heating. Hitachi's range of cooling and heating capacities is wide and can meet the needs of all customers, from small businesses to large industrial buildings. Additionally, for airside available countries, Hitachi offers airside products for Chiller systems, including Fan Coil Units (FCUs) and Air Handling Units (AHUs), designed to create a comfortable indoor climate and improve indoor air quality.
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Chillers with efficient design and precise capacity control

As the technology leader in the market, Hitachi Chillers are efficiently designed with precise capacity control. Our latest air-cooled chiller AVSY is designed with a proprietary DC Inverter Scroll Compressor with intelligent VFD control logic, enabling precise capacity matching for building loads while reducing power input. The unit features COP up to 3.0 and IPLV of up to 6.06, while select models are also reversible, providing heating with a Heating COP of up to 2.93.
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Enjoy the advantages of flexible installation and maintenance of Hitachi Chiller

Due to the wide range of Chiller types and capacities available, customers can always find the right Chiller to suit their AC needs, whether they have a plant room. Additionally, they can connect the chiller system to other equipment using our unique H-LINK wiring system which reduces the total length of wiring needed by allowing point-to-point connection between any chiller or indoor unit. Those integrated into a Building Management system can connect our chillers via ModBus or BACNET protocols.
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Continually higher COP and IPLV, larger capacity and lower GWP

Hitachi launched the world's first single-stage oil-free screw chiller in 1981, which had a capacity range of 22-45kw and used R22 refrigerant. This chiller was considered to be the most advanced at the time and won the JSRAE award. Since then, we have continued to develop chiller technology, focusing on higher COP and IPLV, larger capacities, and lower GWP. Hitachi's latest water-cooled screw chiller, the WVY series, uses R134a refrigerant and offers cooling capacities from 102-520RT (358kW-1,830kW) with high-efficiency cooling operation up to COP 5.79, which helps reduce electricity consumption and lower CO2 impact.
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Airside Products contribute to IAQ

Our Fan Coil Units (FCUs) and Air Handling Units (AHUs) airside products can contribute to improved indoor air quality by filtering the air, providing adequate ventilation, controlling humidity and temperature, and proper maintenance.
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The high performance of Hitachi's Chillers guarantees consistent comfort

Hitachi Chillers are built to perform at a high level, providing consistent and reliable cooling. For example, our Air-Cooled Modular Inverter Chillers (AVSY) can operate in ambient temperatures from -15C (or -25C for Low Ambient models) right up to 43C and include a smart defrosting mode for cold climates. Our inverter centrifugal chillers (GFG-SIT/GXG-SIT/GSG-SIT Series) enable stable operation even when using a low water inlet temperature, because the motor speed control range has been extended through improvements in oil temperature supply and recovery. By operating using low-temperature water during cold seasons, very little energy is used by the compressor thanks to the inverter motor control and a high-efficiency economizer, boosting COP up to 22.4 under partial load1.
Explore our range of Chillers

Hitachi Air Conditioners for Residential and Commercial spaces

With over 80 years of experience, we are confident that our range of cooling and heating solutions provides households and businesses with the leading climate control technology to create and maintain the perfect indoor environment. This includes our chiller systems, meeting the evolving requirements of our clients means that we are constantly innovating our systems, resulting in a collection of elegant and efficient. Whether air-cooled chiller systems or water-cooled chiller systems, they are designed to adapt to your needs and the space they inhabit. We cater for all types of projects and offer an extensive range of solutions so that you can find the system right for the job.

To see our ranges of residential and commercial solutions, click here, and if you are interested in receiving more information from a professional installer, find your nearest one using our Partner Locator.