Hitachi GLS Screw Refrigeration Unit Inverter Two-Stage Compression Air-Cooled
Hitachi Global Life Solutions
Air-cooled two-stage compression screw refrigerator equipped with a liquid crystal touch panel and inverter control.
By adopting an LCD touch panel, the operability and serviceability have been improved. The adoption of an LCD touch panel (information from the freezer is displayed on the LCD screen). Two modes can be set according to the application. In "Suction Pressure Control" and "Internal Temperature Control," mode switching via external input signals is possible. Please use this when switching setting values, such as "Pre-cooling (internal set temperature -20°C)" and "Freezing (internal set temperature -40°C)." Frequency Control Four types of frequency control methods are prepared, considering various usage applications. (Selected via a switch on the printed circuit board) Suction Pressure Control The suction pressure sensor incorporated in the freezer determines the cooling load based on its detection value and continuously controls the compressor rotation speed. Internal Temperature Control The internal temperature is input as a DC 4-20mA signal from the temperature controller prepared on-site to the freezer control panel for determining the cooling load. For further details, please contact us.
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basic information
- Type: Air-cooled, two-stage compression, inverter type - 2 mode settings: Pre-cooling (internal set temperature -20°C) / Freezing (internal set temperature -40°C) - Four types of frequency control (suction pressure control / internal temperature control / external contact three-stage control / proportional control) - Control signal: Compatible with 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 used as a cooling source for refrigerated warehouses and process cooling in food and logistics. It supports a wide range of cooling loads with centralized management of operating information via a liquid crystal touch panel and load-responsive control.
Line up（3）
| Model number | overview |
|---|---|
| RSU-R502TRV | |
| RSU-R752TRV | |
| RSU-R1002TRV |
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.
