9
Installation instruction
Long pipe and high drop
1. Allowable pipe length and height difference
Permissible value
Piping part
Piping
length
Total length of piping (actual length)
100m
L1+L2+L3+L4+a+b+c+d+e
Longest piping L
50m
L1+L2+L3+L4+e
Piping length of indoor unit which is furthest to the first branch
piping L (*)
30m
L2+L3+L4+e
Drop
height
Drop height between indoor and outdoor unit
H
Up outdoor
30m
——
Under outdoor
20m
——
Drop height between indoor units h
10m
——
Permissible value
Piping part
Piping
length
Total length of piping (actual length)
150m
L1+L2+L3+L4+a+b+c+d+e
Longest piping L
70m
L1+L2+L3+L4+e
Piping length of indoor unit which is furthest to the first branch
piping L (*)
40m
L2+L3+L4+e
Drop
height
Drop height between indoor and outdoor unit
H
Up outdoor
30m
——
Under outdoor
20m
——
Drop height between indoor units h
10m
——
Drop height between indoor and outdoor units
Drop height between
indoor units
h≤10m
Length of the longest piping after the
first branch piping L
First branch piping
Outdoor unit
Indoor unit
Length of the longest piping L
A. Outdoor unit
Unit pipe spec and connection method (unit: mm)
Model
Gas pipe side
Liquid pipe side
Diameter (mm)
Connecting method
Diameter (mm)
Connecting method
Ø15.88
Flared joint
Ø9.52
Flared joint
Ø9.52
Ø19.05
Ø9.52
Ø19.05
Ø9.52
AWAU-YCV080-H11
type: Maximal length and drop height permissible of refrigerant piping
AWAU-YCV150-H11/AWAU-YCV150-H13/AWAU-YCV180-H13
type: Maximal length and drop height permissible of refrigerant piping
Ø19.05
AWAU-YCV150-H13
AWAU-YCV180-H13
AWAU-YCV150-H11
AWAU-YCV080-H11