Refrigerant Pipe; Length And Drop Height Permitted Of The Refrigerant Piping; Indoor Unit - Carrier Xpower Series Installation Manual

5. REFRIGERANT PIPE

5.1 Length and drop height permitted of the refrigerant piping

Total pipe length
(total extended length)
Maximum piping (L)
Pipe(between the farthest indoor
unit and first branch joint) length
Indoor unit-outdoor unit
drop height
Indoor unit to indoor unit drop height
Outdoor unit
(one or more outdoor units)
W3 W2 W1
(12) (12) (22)
g1 g2 g3
M
G1
*1. Level differences cannot be above 90 m unless customization is requested (if the outdoor unit is above the indoor unit).
Installation manual
12
(refer to caution 5 of
Actual length
Equivalent length
(refer to caution 1)
(refer to caution 5)
Outdoor unit up
Outdoor unit down
First branch joint
L
2
L A
L

Indoor unit

1
L
7
L
8
G
L
11
Pipe (between the farthest indoor unit
and first branch joint) length L≤40 m
Pipe (between the farthest indoor unit
and outdoor unit) equivalent length L≤200 m
≥300mm
Permitted value
1,000 m
L +(L
1 2
+L )x2+a+b+c+d+e+f+g+h+i+j+k+l+m
12
conditions 2)
L +L +L
175m 1 7
(Pipe diameter requirements.
200m
Refer to table. 5-4 or 5-5)
40/90*m
L +L +L
7 8
90m (Refer to caution 3)
110m (Refer to caution 4)
30m
a
L
C
4
L
3
B
E L
6
L
5
d
N
7
(140)
g
H
I
L
9
L
12
L
K
k
N
11
(140)
Piping(refer to Fig.5-1)
+L +L +L +L +L +L +L +L
3 4 5 6 7 8 9
+L +L +i
8 9 10
+L +i
9 10
N
2
N (140)
1
b
(140)
D
F
e
N
5
N
4
(140)
(140)
N
8
(140)
N
h 9
i
(71)
J
L
10
j
N
10
(28)
m
l
N N
12 13
(56) (56)
≥300mm
Table.5-1
+L
10 11
N
3
c
(71)
f
N
6
(28)
Fig.5-1
Fig.5-2