J4AC3 Installation Manual
13
TABLE 3 :LIQUID LINE SIZE (R410A)
25
50
75 150
1/4 25
40
25
5/16 25
50
60 30
3/8* 25
50
60 30
1/4 23
N/A
N/A N/A
5/16 25
36
29 9
3/8* 25
50
60 30
1/4 25
N/A
N/A N/A
5/16 25
49
38 6
3/8* 25
50
60 30
5/16 25
50
37
3/8* 25
50
60 30
5/16 25
23
4 N/A
N/A
3/8* 25
50
43 24
3/8* 25
46
38 15
1/2 25
50
56 30
3/8* 25
50
56 20
1/2 25
50
60 30
125
40
40
N/A
N/AN/A
16
40
N/A
17
40
7
40
N/A
30
22
40
32
40
100
9
58
60
N/A
23
60
N/A
27
60
22
60
N/A
36
30
55
44
60
Liquid Line Size
Outdoor unit above or below indoor coil
3/8"
3/8"
3 Ton
Total Equivalent Length - Feet
Model
Size
Line Size
Connection And
Line Size
(Inch O.D.)
Maximum Vertical Separation - Feet
Line Size
Connection Size
(Inch O.D.)
Compressor
Type
Scroll
Scroll
Scroll
1 1/2 Ton 3/8"
2 Ton 3/8"
3/8"2 1/2 Ton
NOTES:
* Standard line size
N/A Application not recommended.
Scroll
Scroll
Scroll
Scroll
3 1/2 Ton
4 Ton
5 Ton
3/8"
3/8"
TABLE 2: SUCTION LINE LENGTH/SIZE VS CAPACITY MULTIPLIER(R410A)
1 1/2 Ton 2 Ton 2 1/2 Ton 3 Ton 3 1/2 Ton 4 Ton 5 Ton
3/4" O.D. 3/4" O.D. 3/4" O.D. 3/4" O.D. 3/4" O.D. 7/8" O.D. 7/8" O.D.
5/8 Opt. 5/8 Opt. 5/8 Opt. 5/8 Opt. 5/8 Opt. 3/4 Opt. 1 1/8 Opt.
3/4* Std. 3/4* Std. 3/4* Std. 3/4* Std. 3/4* Std. 7/8* Std. 7/8* Std.
Optional 1.00 1.00 1.00 1.00 1.00 1.00 1.00
Standard 1.00 1.00 1.00 1.00 1.00 1.00 0.99
Optional 0.97 0.97 0.97 0.97 0.98 0.98 0.99
Standard 0.98 0.98 0.98 0.99 0.98 0.98 0.98
Optional 0.94 0.94 0.94 0.94 0.95 0.95 0.98
Standard
0.95 0.95 0.96 0.97 0.97 0.97 0.94
Suction Line Connection Size
Model Size
Suction Line Run
－
Feet
NOTES:
* Standard size
Using suction line larger than shown in chart will result in poor oil return and is not recommended.
25'
50'
100'
Optional 0.90 0.90 0.90 0.90 0.91 0.92 0.97
Standard 0.92 0.92 0.93 0.96 0.96 0.96 0.90
150'
LINE SIZING
the system capacity published in AHRI is 17800Btu/h. This data is based on the AHRI test condition and 25ft line set with standard suction tube
size(3/4" tube). If you need to add the line set more than 25ft or use the optional suction tube size, you need to recalculate the capacity with the
coefficient in the table. For example: for 50ft line and 5/8" suction tube, the capacity will be 17800*0.97=17266Btu/h.