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AIR CONDITIONER - MULTI SPLIT - SET FREE - JAPAN ORIGIN
 Releasing a next-generation variable refrigerant flow air conditioning systems designed for buildings that saves energy, construction time, and installation space !!
All buildings require a good air conditioning system that matches the width, structure, functions and so forth. We specialize in creating the optimal air conditioning system to suit the requirements of each building. We have continuously developed sophisticated energy-saving air-conditioning systems that reduce CO2 emissions and consider the global environment. Hitachi is proud to release its latest variable refrigerant flow air conditioning systems, the SET-FREE FSN series featuring high energy-saving, easy installation and compact size for next-generation buildings.
Energy Saving
Thanks to Hitachi's unique energy-saving technology such as the high-efficiency DC inverter compressor, industry-leading COP has been achieved.
Easy Installation
All-in-one compact design for all models for outdoor units. Simplifies the installation and increases the flexibility of location.
Enhanced Line Up
6 types and 19 models of outdoor units
8 types and 42 models of indoor units
Comfort
Fine temperature setting and noise reduction technology for comfortable air-conditioning.
Reliability
Hitachi's long scroll compressor experience ensures greater reliability.
Adopted most recent technologies
- Newly-developed, Highly-efficient 2-blade-inverness Fan
- High-efficiency Fan Module
- Vector-control DC Inverter
- High-efficiency DC Inverter Compressor
- High-efficiency, Constant-speed Compressor
- Large-capacity DC Fan Motor
- Newly-developed, Energy-saving Heat Exchanger
- Supercooling Circuit
Wide Product Range
Space, structure, and necessary functions. In line with the evolution in building design, the requirements for air-conditioning have also diversified.
The Hitachi SET-FREE FSN series offer 6 types of all-in-one outdoor units and 8 types (42 models) of indoor units. By combining units from a wide selection of models, you can create a custom air-conditioning environment to satisfy your specific building conditions.
Energy-saving and comfort
Hitachi's sophisticated energy-saving technology delivers outstanding effects.
The various cooling circuit technologies incorporated and new R410A DC inverter compressor equipped achieve an industry-leading level of efficiency and energy-saving performance.
Use of Supercooling Circuit
By using a supercooling circuit for the refrigeration cycle and optimizing the piping system, the performance is greatly improved. Performance improved by high-efficiency plate type heat exchanger.
Optimization of Heat Exchanger
Heating Operation:
The drop in evaporating temperature is prevented by arranging 1 liquid path and 2 gas paths. Frost build-up is prevented by the sub-cooler located in the lower part.
Cooling Operation:
Cooling capacity is enhanced by the sub-cooler.
NEW Adoption of Highly-efficient R410A Scroll Compressor
Performance is greatly improved by the high-efficiency scroll compressor onboard for the newly-developed R410A, compared with the compressor for R407C.
- Reliability greatly improved by use of optimized bearing.
- Intake loss and leakage loss largely reduced by asymmetric scroll lap.
- Heat loss largely reduced by oil-return structure.
- Accurate oiling to the compressor by improved oiling system.
Energy-saving and Comfort
Capacity Control by 1Hz, The Only One in The Industry
Performance is greatly improved by the high-By vector-controlling the high efficiency DC inverter compressor and 100% load compressor, energy-saving operation without loss is achieved (depending on building load).
Precise Temperature Setting
By properly controlling the refrigerant quantity by an electronic expansion valve, the temperature can be finely set.
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