York R-410A Technical & Service Manual page 249

___________________________________________________________________________________
28 kW
Pipe total length (actual length)
Pipe
Farthest pipe length(m)
length
Equivalent length L of pipe from the first
branch to the farthest one (m)
Drop height between
indoor unit and outdoor
Drop
unit
height
Drop height between indoor unit and indoor
unit
Conversion of the equivalent length: Convert into the direct pipe length. According to branch
Junction 0.5m/l and branch header pipe 1.0m/l.
___________________________________________________________________________________
Actual length
Equivalent length
Outdoor unit up
Outdoor unit down
- 248 -
Installation
Permitted length
≤ 250 m
≤ 150 m
≤ 175 m
≤ 40 m
≤ 50 m
≤ 30 m
≤15m
Pipe
L1+L2+L3+L4+L5+L6
+L7 + a+b+..i
L1+L3+L4+L5+L6+i
L3+L4+L5+L6+i
——
——
——