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Table 2. XCZ20 Line Set Guidelines — 51 to 150 Linear Feet in Length
Maximum Total
Model
Equivalent Length (ft)
024
180
036
180
048
180
060
180
Unit
Line Size
5/16"
024
3/8"
3/8"
036
1/2"
3/8"
048
1/2"
3/8"
060
1/2"
NOTE Shaded rows indicate rated liquid line size
A. Find your unit on the left side of the table.
B. Start with the rated liquid line size (shaded row) on the outdoor unit
C. Select the actual Total Linear Length of your system shown at the top of the table.
D. The elevation listed in the table is the maximum allowed for the liquid line listed.
E. Select or consider the larger liquid line size shown in the table if the elevation does not meet your requirements.
NOTE - For new or replacement line set installation, refer to Service and Application Note - Corp. 9112-L4 (C-91-4).
Maximum Linear
Maximum Vapor
(actual) Length (ft)
150
150
150
150
Table 3. Liquid Line Diameter Selection Table
Total Linear Length (feet)
25
50
25
50
25
50
25
50
25
50
25
50
25
50
25
50
25
50
Page 5
Maximum
Linear Liquid
Riser (ft)
Lift (ft)
60
60
60
60
60
60
60
60
75
100
55
48
60
60
60
56
60
60
50
41
60
60
36
22
60
60
Preferred
Vapor Line
Required Vapor
Sizes for
Riser Size
Horizontal
Runs
7/8"
5/8"
7/8"
3/4"
7/8"
7/8"
7/8"
7/8"
125
150
40
33
60
60
51
45
60
60
31
22
60
60
8
NR
60
59
XCZ20 SERIES
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