Carrier XCT7 Installations- Und Benutzerhandbuch Seite 22

Installation procedure
B. Indoor unit.
Model Capacity
07
09
12
16
18
24
28
30
38
48
72
96
C.Pipe specs and torque
Diameter
(mm)
Ø6.35
Ø9.52
Ø12.7
Ø15.88
Ø19.05
Branch pipe
Branch pipe selection:
Total indoor capacity(100W)
Less than 335
More than 335, less than
506
Outdoor unit type
The master unit will choose the one closest to the first branch pipe.
Note:
1. When connecting the outdoor branch pipe and the outdoor unit, please pay attention to the
outdoor pipe dimension.
2. When adjusting the diameter among the outdoor branch pipe and among the units, please
execute at the branch pipe side.
3. Please install the outdoor branch pipe (gas/liquid side) horizontally or vertically.
4. When welding with hard solder, please blow nitrogen. If not, oxidation will cause heavy damage.
Additionally, to prevent water and dust from entering the pipe, please make the brim as outer roll.
Gas pipe side
Diameter (mm)
Diameter (mm)
Ø9.52
Ø9.52
Ø12.7
Ø12.7
Ø12.7
Ø15.88
Ø15.88
Ø15.88
Ø15.88
Ø15.88
Ø25.4
model(optional)
40VJ012M7-HQEE
40VJ018M7-HQEE
Connecting Diameter (mm)
method
Braze
Torque(N . m)
14~18
34~42
49~61
68~82
84~98
15
Liquid pipe side
Connecting
method
Ø6.35
Ø6.35
Ø6.35
Ø6.35
Ø6.35
Ø9.52 Flared
Ø9.52
Ø9.52
Ø9.52
Ø9.52
Ø9.52
Ø9.52