– Set Free Sigma (JNBBQ series)
Modular Top Flow High Ambient Heat Pump VRF
– Set Free Sigma (JNBBQ series)
Modular Top Flow High Ambient Heat Pump VRF
– Main Features
2. NEWLY DEVELOPED COMPRESSOR: Highly improved performance as well as greater energy savings are achieved by adopting a newly developed, high-efficiency DC inverter compressor with extremely accurate control technology that regulates inverter frequency in increments of 0.1Hz. Another feature is the dramatically extended working range achieved by expanding the compressor’s operating frequency band, both upwards and downwards.
3. REDESIGNED HEAT EXCHANGER: The Σ shape heat exchanger increase the Heat exchanger surface area and improve both performance and efficiency.
4. PIPING FLEXIBILITY: Longer and more flexible piping has been realized with the new series.
5. A WIDE RANGE OF EXTERNAL STATIC PRESSURE: The JNBBQ Series offers three ESP options (0Pa, 30Pa and 60Pa). By adding an air outlet duct kit and duct to the outdoor unit, external static pressure is secured in varying installation spaces.
– Other Main Features
2. SMART REFRIGERANT TEMPERATURE CONTROL: The control in the VRF system is intelligently designed to ensure that the end user will always receive the optimum flow of refrigerant for their cooling demands for maximum comfort and efficiency through Smart refrigerant Temperature SRT technology.
3. UNINTERRUPTED OPERATION: Un-interrupted operation is guaranteed due to the advanced communication protocol. In case of power failure of one of the indoor units the system will continue operating.
4. BACKUP OPERATION FUNCTION FOR EMERGENCY: The backup operation function prevents the system from coming to a complete stop when outdoor unit failure occurs.
5. ROTATIONAL OPERATION TO DISTRIBUTE LOAD OF OUTDOOR UNITS: Regulating the operation time of each outdoor unit leads to load reduction on compressors. During multiple unit operation, maintaining the same rotation frequency of the compressors results in an equal load on each compressor, thereby helping enhance outdoor unit durability.
– What our customers say?
"Sustainability means a lot to LABS Tower. Heat pump technology is highly energy efficient as it uses renewable energy from the outdoor air to drive the heating/cooling process. This technology delivers high output for low input, leading to a direct saving in CO2 emissions and running costs.”
“Living in a Mediterranean climate, with temperatures reaching in excess of 40˚C, especially given that LABS Tower is a glass building, it is imperative to us that the air conditioning system installed works seamlessly, efficiently and quickly, all of which the Hitachi HVAC system does effectively.”
Frank Stravrou, COO of LABS Tower
Learn more about LABS Tower project
"We've had a good experience with Hitachi Cooling & Heating products for a couple of years now, when several VRF systems were installed in the hotel's extension in 2018 and they proved to be reliable and energy efficient"
Mr. Robert Refalo, Titan International Ltd Service Manager (2020)
Learn more about Maritim Antonine Hotel & Spa project
"Hitachi VRF's combination of quality, technology and technical support made it the perfect choice for this project.”
Jay Smith (Fredon Air)
Learn more about North Kellyville Public School project
"Since we installed SET FREE Σ, we have had zero problems and zero complaints. When our guests are satisfied, so are we.”
Ms. Golda Boruchowski, Hotel General Manager
"Since we installed SET FREE Σ, our maintenance and energy costs have significantly reduced.”
Mr. Marcelo Ribeiro, Hotel Chief of Maintenance
"Hitachi Cooling & Heating solutions deliver excellent reliability. SET FREE Σ was the ideal solution.”
Eng. Renato Chacur, Consultant
Learn more about São Paulo Higienópolis project
"Since we installed the Hitachi Variable Refrigerant Flow system, the building’s annual electricity costs decreased by 20% to 30%. It was a smart investment!”
Gustaf Stevanus Rotinsulu, Graha Kencana Building Owner (2019)
Learn more about Graha Kenkana building project
