Carrier XCT7 Installations- Und Benutzerhandbuch Seite 16

Installation instructions
Long pipe and high drop
1. Allowable pipe length and height difference
Maximal length and drop height permissible for refrigerant piping
Piping
length
Piping length of indoor unit which is furthest to the first branch piping
Drop Drop height between indoor and outdoor unit
height
Unit pipe specs and connection method (unit: mm)
A. Outdoor unit
Gas pipe side
Model
Diameter
Ø 15.88
38VS125C7SHQEE
Ø 15.88
38VS140C7SHQEE
If the pipe diameter is not available, please choose the
larger diameter pipe from the list.
Carrier XCT7 piping diameter
mm inch
9,52 3/8
12,7 1/2
15,88 5/8
19,05 3/4
22,22 7/8
25,4 1
28,58 1 1/8
31.75 1 1/4
34,9 1 3/8
38,1 1 1/2
41,3 1 5/8
44,5 1 3/4
50,8 2
54,1 2 1/8
Outdoor unit
First branch piping
Total length of piping (actual length)
Longest piping L
L (*)
H
Drop height between indoor units h
Liquid pipe side
Connecting Diameter Connecting
method method
Ø 9.52
Flared joint Flared joint
Ø 9.52
Recommended diameter if piping size
is not available in the market
Mm / inch
28.58 / 1 1/8
34.9 / 1 3/8
41.3 / 1 5/8
54.1 / 2 1/8
54.1 / 2 1/8
Indoor unit
Length of the longest piping L
Length of the longest piping
after the first branch piping L
Permissible value
120m
Actual /Equivalent 60/70m
length
40m
Above outdoor 30m
Under outdoor 20m
10m
B. Indoor unit
Please refer to the indoor air conditioner manual.
Connecting method: Flared joint
Branch pipe
Outdoor unit type
Branch pipe selection:
Total indoor capacity (100W)
Less than 335
C. Pipe specs and thetorque
Diameter (mm)
Ø 6.35
Ø 9.52
12.7
Ø
Ø 15.88
Ø 19.05
Ø 22.22
Ø 25.4
Not less than Ø28.58
Note: If the copper pipe with outer diameter 19.05 is coil
pipe, the thickness should be over 1.1.
9
h≤10m
Piping part
L1+L2+L3+L4+a+b+c+d+e
L1+L2+L3+L4+e
L2+L3+L4+e
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——
——
Model (optional)
40VJ012M7-HQEE
Thickness (mm) Torque (N.m)
0.8 16~20
0.8 40~50
1.0
1.0 90~120
1.0 100~140
1.1 ——
1.2 ——
More than 1.4 ——