The maximum piping length of the refrigerant pipes for the outdoor units, and the maximum height difference for the outdoor units are as shown below.
|Length for one indoor unit||under 25m|
|Total length for all rooms||under 70m|
|Lower installation spot of the indoor unit (A)||under 20m|
|Upper installation spot of the indoor unit (B)||under 20m|
|Maximum height difference of the indoor units (C)||under 25m|
|Length of precharged refrigerant pipe||40m|