VRF Systems

Set Free Sigma

Sigma stands for the mathematical sum of Johnson Controls and Hitachi VRF technologies. It is also a shape of the new heat exchanger, designed to have better airflow throughout the machine. The product is made to suit the customer’s requirements of higher efficiency, engineered aesthetics, enhanced strength, compact design, compact cooling and heating etc.

Sigma stands for the mathematical sum of Johnson Controls and Hitachi VRF technologies. It is also a shape of the new heat exchanger, designed to have better airflow throughout the machine. The product is made to suit the customer’s requirements of higher efficiency, engineered aesthetics, enhanced strength, compact design, compact cooling and heating etc.

1. Enhanced Efficiency


  • Efficiency Ratio

2. New DC Inverter scroll compressor


  • Improved part load performance and reduced noise by 2 dB

3. Uninterrupted control with smooth drive function for ultimate comfort and energy saving.

Uninterrupted control with smooth drive function for ultimate comfort and energy saving.

4. Expandable capacity up to 96 HP for all the suitable needs and compact size


  • Single module up to 24 HP
  • Compact size with 32% lesser footprint** (**compared to previous model)

5. Adjustable external static pressure up to 80 Pa.


  • Available adjustments from 0,30, 60 and 80 Pa.

6. Longer piping length up to 110 m*

Longer piping length up to 110 m*

7. Wider ambient temperature working range from (-20 degrees C to 52 degree C)

Wider ambient temperature working range from (-20 degrees C to 52 degree C)

8. Ease of maintenance with faster turnaround time.

Ease of maintenance with faster turnaround time.

documentation

downloads

Manuals, brochures and other product literature. If you need any more information, please get in touch.

where to buy

Search our network of authorised Hitachi distributors and installers.

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