Simultaneous extension of
height difference and equivalent length

Design flexibility is further improved by simultaneous extension of height difference, improved from 90 m to 110 m, and equivalent length (up to 190 m).

• Height difference extension Max. 110 m

  For height differences exceeding 50 m with the outdoor unit above the indoor unit and 40 m with the outdoor unit below, the main piping liquid piping size must be increased.

• Equivalent length extension Max. 190 m

  When the equivalent piping length from outdoor unit to indoor unit is 90 m or more, be sure to increase the main piping liquid piping size.

* In addition to increasing the size of the main pipe, there are other piping restrictions regarding height difference extension and equivalent length extension.