17
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Installation Procedure
Step 5 Connecting the refrigerant pipe
Items
Maximum allowable length
Single installation DPM installation
Applicable outdoor unit models
Aߢ߫ߢđǹUࡒ²
AߣߢߢđǹUࡒ²
AߣߤߢđǹUࡒ²
AߣߦߢđǹUࡒ²
AߣߢߢđǹUࡒ²
AߣߤߢđǹUࡒ²
AߣߦߢđǹUࡒ²
Total pipe length (L
1
+…+L
n+1
+a+b)
--ߧߢ ߩߧ
Main pipe (L
1
)
ߧߢ ߩߧ ߥߢ ߧߢ
Max. distance among indoor units (D)
--ߣߢ ߣߢ
Max. length after branch
--ߣߧ ߣߧ
Max. height difference between
outdoor and indoor units (h
1
)
ߥߢ ߥߢ ߥߢ ߥߢ
Max. height difference among
indoor units(h
2
)
--ߢߧ ߢߧ
Max Pipe length difference among
indoor units after branch
[L
2
-L
3
or L
2
-L
4
or L
2
-L
5
or a-b or (a+L
2
)-
(b+L
4
) or (a+L
3
)-(b+L
5
)]
--ߧ ߧ
҃
ʪɇϑϩ˵ʪЇɵʪθͱ˙ʒͱͱθЇϩʀͱʪʀϩͱͱ˙Uťđ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ͱЇϩʒͱͱθ
ͱЇϩʒͱͱθ
ͱЇϩʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ʒͱͱθ
ͱЇϩʒͱͱθ
ø
1
ø
1
ø
ߤ
ø
ߤ
D
D
D
D
h
ߤ
h
ߤ
ø
ߥ
ø
ߥ
ø
4
ø
4
ø
ߧ
ø
1
a
ɵ
D
ø
1
ø
ߤ
ø
ߥ
h
1
h
ߤ
h
1
h
1
h
1
ߣ
ߤ
ߥ
ߦ
҃
Ƹϑʪɇͱϩϩϩ˵ɇϩϑͱц˙ͱθUťđ
҃
ƟʪΧʪθ˝θɇʒʪɇʒЇϩ˵ʀʪϑϑͱ˙ϩ˵ʪθʪ˙θ˝ʪθɇϩΧΧʪ
Outer diameter [mm] Minimum thickness [mm] Temper grade
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