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Step 5 Connecting the refrigerant pipe
Items
Applicable outdoor unit models
Total pipe length (L
+...+L
1
Main pipe (L
Max. distance among indoor units (D)
Max. length after branch
Max. height difference between
outdoor and indoor units (h
Max. height difference among
indoor units(h
Max Pipe length difference among
indoor units after branch
[L
-L
or L
-L
or L
-L
or a-b or (a+L
2
3
2
4
2
5
(b+L
) or (a+L
)-(b+L
4
3
1
1
Outer diameter [mm]
Single installation
+a+b)
-
n+1
)
1
-
-
)
1
-
)
2
-
)-
2
)]
5
h
D
Minimum thickness [mm]
Maximum allowable length
-
-
-
-
-
1
h
1
a
1
h
1
DPM installation
D
h
D
4
D
h
4
D
Temper grade
English
h
1
h
1
17
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