Hitachi’s Sigma Series Doing Well

Hitachi’s Sigma series global VRF system, introduced in mid-2018 in the Indian market, has been well accepted by customers. Hitachi now has the largest single module up to 24 hp and combination up to 96 hp. A new high efficiency direct current (DC) inverter compressor is employed in this new range, giving precise control in 0.1 Hz increments.