Page 5
XP25 SERIES
Table 1. Standard Refrigerant Line Set — Up to 50 Linear Feet
Inches (mm)
Unit Size
Valve Size Connections
Recommended Line Sets
Liquid Line
Suction Line
L15 Line Set Model
Line Set Length
Catalog Number
-024
-036
-048
3/8” (10 mm)
7/8” (22 mm)
L15-65-30
30 feet (9.1 m)
89J60
L15-65-40
40 feet (12.2 m)
89J61
L15-65-50
50 feet (15.2 m)
89J62
-060
3/8” (10 mm)
1-1/8” (29 mm) **
Field-fabricated
* Applicable to all minor revision numbers unless otherwise specified.
** Some applications may required a field-provided 1-1/8” to 7/8” adapter.
Table 2. Line Set Guidelines Between — 51 150 Linear Length
Unit Size
Maximum Total
Equivalent Length (ft)
Maximum Linear
(actual) Length (ft)
Maximum
Vapor Riser
(ft)
Maximum
Linear Liquid
Lift (ft)
Preferred Vapor
Line Sizes for
Horizontal Runs
Required Vapor
Riser Size
024
180
150
60
60
7/8”
5/8”
036
180
150
60
60
7/8”
3/4”
048
180
150
60
60
7/8”
7/8”
060
180
150
60
60
7/8”
7/8”
Table 3. Liquid Line Diameter Selection Table
Unit Size
Line Size
Total Linear Length (feet)
25
50
75
100
125
150
024
5/16”
25
50
55
48
40
33
Max. Elevation (ft)
3/8”
25
50
60
60
60
60
036
3/8”
25
50
60
56
51
45
1/2”
25
50
60
60
60
60
048
3/8”
25
50
50
41
31
22
1/2”
25
50
60
60
60
60
060
3/8”
25
50
36
22
8
NR
1/2”
25
50
60
60
60
59
Note Shaded rows indicate rated liquid line size
1. Find your unit on the left side of the table
.
2. Start with the rated liquid line size (shaded row) on the outdoor unit
3. Select the actual total linear length of your system shown at the top of the table
.
4. The elevation listed in the table is the maximum allowed for the liquid line listed.
5. Select or consider the larger liquid line size shown in the table if the elevation does not meet your requirements
.
