Hitachi GLS Screw Refrigeration Unit Inverter Two-Stage Compression Air-Cooled
Hitachi Global Life Solutions
Air-cooled two-stage compression screw refrigerator with enhanced efficiency using a new high-performance inverter compressor.
Installation of a new high-performance inverter compressor - Improvement in efficiency through optimization of low-stage/high-stage discharge ratio - Improvement in efficiency through optimization of internal volume ratio - Reduction of internal leakage and improvement in efficiency through high-precision rotors Improved operability and serviceability by adopting an LCD touch panel Adoption of an LCD touch panel (information about the refrigeration unit is displayed on the LCD screen) Two mode settings available according to application In "Suction Pressure Control" and "Internal Temperature Control," mode switching via external input signals is possible. Please use this when switching settings such as "Pre-cooling (internal set temperature -20C)" and "Freezing (internal set temperature -40C)." Frequency control Four types of frequency control methods are prepared, considering various usage applications. (Selection via a switch on the printed circuit board) Suction pressure control The cooling load is determined by the detection value of the suction pressure sensor incorporated in the refrigeration unit. For further details, please contact us.
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basic information
- Type: Air-cooled, two-stage compression, inverter type - Equipped with a new high-performance inverter compressor (optimization of discharge volume ratio and internal volume ratio, reduction of internal leakage) - 2 mode settings: Pre-cooling (-20°C) / Freezing (-40°C) - Four frequency control options, compatible with control signal DC 4-20mA input - Reduced restart prevention time (3 minutes at shipment), refrigerant oil Freon α32N included
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Applications/Examples of results
This is an air-cooled condensing unit that does not require cooling water equipment, used in refrigerated warehouses for food and logistics, as well as for process cooling. It is suitable for facilities that aim for energy savings and stable operation due to its high-efficiency new inverter compressor.
Line up（3）
| Model number | overview |
|---|---|
| RSU-R402TAV | |
| RSU-R503TAV | |
| RSU-R753TAV |
Company information
Kyushu Kiden Co., Ltd. not only sells electrical and mechanical products such as air conditioning equipment, industrial machinery, air compressors, elevators, escalators, and lighting fixtures as a Hitachi sales agent, but also provides solutions that contribute to energy conservation and decarbonization (SDGs), including the currently popular solar power generation (PPA), biomass power generation, and waste heat recovery units. The company is also certified as a planner for ZEB (Net Zero Energy Building), which has recently gained attention in corporate energy-saving measures, and has received great acclaim for its comprehensive energy-saving proposals for entire buildings. 【Service Areas】 - Fukuoka, Saga, Kumamoto, Oita, Yamaguchi, Hiroshima, Osaka 【Major Qualifications】 - First-Class Plumbing Construction Management Engineer - First-Class Electrical Work Construction Management Engineer - Designated Construction Industry Supervisory Engineer (Plumbing) - Designated Construction Industry Supervisory Engineer (Electrical Work) - First-Class Electrician - Chief Technician for Water Supply Equipment Construction - First-Class Refrigeration and Air Conditioning Equipment Construction Skill Technician - Building Equipment Engineer - First-Class Civil Engineering Construction Management Engineer - Third-Class Refrigeration Machinery Manufacturing Safety Manager - Refrigeration and Air Conditioning Construction Safety Management Certificate - Refrigerant Handling Technician Certificate - First-Class Hitachi Refrigeration and Air Conditioning Technician (Air Conditioning and Low Temperature) - And many others.
