York R-410A, Technical & Service Manual, Page: 248 / 385

Installation
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4. Installation of Refrigerant Pipe
4.1) The permitted length and drop difference of refrigerant pipe.
10-14 kW
Digital scroll Pipe
Pipe total length (actual length) ≤100m
L1+L2+L3+L4+L5+L6+A+
B+C+D+E
10 kW ≤45m
Actual length
14 kW ≤60m
10 kW ≤55m
Farthest pipe
length(m)
Equivalent length
14 kW ≤70m
L1+L3+L4+L5+L6+E
Pipe
length
Equivalent length L of pipe from the first
branch to the farthest one (m)
≤20m L3+L4+L5+L6+E
Outdoor unit up ≤20m ——
Drop height
between indoor unit
and outdoor unit
Outdoor unit
down
≤20m ——
Drop
height
Drop height between indoor unit and
indoor unit
≤8m ——