10
Installation procedure
Long pipe and high drop
1. Allowable pipe length and height difference
YV2VYH010 type: Maximal length and drop height permissible of refrigerant pipe
YV2VYH015~018 type: Maximal length and drop height permissible of refrigerant pipe
Total length of pipe (actual length)
Total length of pipe (actual length)
Pipe length of indoor unit which is furthest
to the first branch piping L
(※)
pipe length of indoor unit which is furthest
to the first branch piping L
(※)
Drop height between indoor units h
Drop height between indoor units h
Drop height between indoor
and outdoor unit H
Drop height between indoor
and outdoor unit H
Longest pipe L
Longest pipe L
Piping length
Piping length
Drop height
Drop height
Actual length
Actual length
50m
100m
35m
15m
30m
30m
30m
20m
20m
10m
10m
70m
Permissible value
Permissible value
pipe in above diagram
pipe in above diagram
L1+L2+L3+L4+a
+b+c+d+e
L1+L2+L3+L4+a
+b+c+d+e
L1+L2+L3+L4+e
L1+L2+L3+L4+e
L2+L3+L4+e
L2+L3+L4+e
Up outdoor
Up outdoor
Under outdoor
Under outdoor