13 - 16 SEER Single-Stage Air-Conditioners
Unit Size
Allowable
Liquid Line
Size
mm [in.]
Allowable
Suction Line
Size
mm [in.]
Apply Long Line
Guidelines if Linear Line
Length Exceeds Those
Shown Below (Meters)
Equivalent Length (Meters)
< 8 8-15 16-23 24-30 31-38 39-46 47-53 54-61 62-69 70-76
(-)A13 A/B Maximum Vertical Rise (Outdoor Unit Below Indoor Unit) * / Capacity Multiplier
5.3 kW
[1.5 Ton]
**SEE
NOTE 3
6.35 [1/4] 15.88 [5/8] N/A 8 / 1.00 15 / 0.99 19 / 0.98 13 / 0.98 7 / 0.97 2 / 0.97 NR NR NR NR
7.94 [5/16] 15.88 [5/8] N/A 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 28 / 0.97 27 / 0.97 25 / 0.96 24 / 0.96 22 / 0.95 21 / 0.94
9.53 [3/8] 15.88 [5/8] 54 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 30 / 0.97 30 / 0.97 30 / 0.96 30 / 0.96 30 / 0.95 30 / 0.94
6.35 [1/4] **19.05 [3/4]** N/A 8 / 1.00 15 / 1.00 19 / 0.99 13 / 0.99 7 / 0.99 2 / 0.99 NR NR NR NR
7.94 [5/16] **19.05 [3/4]** N/A 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 28 / 0.99 27 / 0.99 25 / 0.99 24 / 0.98 22 / 0.98 21 / 0.98
9.53 [3/8] **19.05 [3/4]** 54 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98
7.0 kW
[2 Ton]
6.35 [1/4] 15.88 [5/8] N/A 8 / 0.99 15 / 0.98 6 / 0.97 NR NR NR NR NR NR NR
7.94 [5/16] 15.88 [5/8] 65 8 / 0.99 15 / 0.98 23 / 0.97 27 / 0.96 23 / 0.95 21 / 0.94 19 / 0.93 16 / 0.92 14 / 0.91 11 / 0.90
9.53 [3/8] 15.88 [5/8] 43 8 / 0.99 15 / 0.98 23 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.93 29 / 0.92 28 / 0.91 27 / 0.90
6.35 [1/4] 19.05 [3/4] N/A 8 / 1.00 15 / 1.00 6 / 0.99 NR NR NR NR NR NR NR
7.94 [5/16] 19.05 [3/4] 65 8 / 1.00 15 / 1.00 23 / 0.99 27 / 0.99 23 / 0.98 21 / 0.98 19 / 0.98 16 / 0.97 14 / 0.97 11 / 0.96
9.53 [3/8] 19.05 [3/4] 43 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98 29 / 0.97 28 / 0.97 27 / 0.96
8.8 kW
[2.5 Ton]
7.94 [5/16] 15.88 [5/8] N/A 8 / 0.99 15 / 0.98 23 / 0.96 21 / 0.94 18 / 0.93 15 / 0.91 11 / 0.90 NR NR NR
9.53 [3/8] 15.88 [5/8] 43 8 / 0.99 15 / 0.98 23 / 0.96 30 / 0.94 30 / 0.93 29 / 0.91 27 / 0.90 NR NR NR
7.94 [5/16] 19.05 [3/4] 65 8 / 1.00 15 / 0.99 23 / 0.99 21 / 0.98 18 / 0.98 15 / 0.97 11 / 0.96 8 / 0.96 4 / 0.95 NR
9.53 [3/8] 19.05 [3/4] 43 8 / 1.00 15 / 0.99 23 / 0.99 30 / 0.98 30 / 0.98 29 / 0.97 27 / 0.96 26 / 0.96 25 / 0.95 24 / 0.95
10.6 kW
[3 Ton]
7.94 [5/16] 15.88 [5/8] N/A 8 / 0.99 15 / 0.97 20 / 0.94 15 / 0.92 10 / 0.90 NR NR NR NR NR
9.53 [3/8] 15.88 [5/8] 33 8 / 0.99 15 / 0.97 23 / 0.94 29 / 0.92 27 / 0.90 NR NR NR NR NR
7.94 [5/16] 19.05 [3/4] N/A 8 / 1.00 15 / 0.99 20 / 0.98 15 / 0.98 10 / 0.97 5 / 0.96 NR NR NR NR
9.53 [3/8] 19.05 [3/4] 33 8 / 1.00 15 / 0.99 23 / 0.98 29 / 0.98 27 / 0.97 26 / 0.96 24 / 0.95 22 / 0.94 20 / 0.93 19 / 0.93
12.7 [1/2] 19.05 [3/4] 17 8 / 1.00 15 / 0.99 23 / 0.98 30 / 0.98 30 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.93 30 / 0.93
7.94 [5/16] 22.23 [7/8] N/A 8 / 1.00 15 / 1.00 20 / 1.00 15 / 0.99 10 / 0.99 5 / 0.99 NR NR NR NR
9.53 [3/8] 22.23 [7/8] 33 8 / 1.00 15 / 1.00 23 / 1.00 29 / 0.99 27 / 0.99 26 / 0.99 24 / 0.98 22 / 0.98 20 / 0.98 19 / 0.97
1/2 [12.7] 22.23 [7/8] 17 8 / 1.00 15 / 1.00 23 / 1.00 30 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.98 30 / 0.98 30 / 0.97
12.3 kW
[3.5 Ton]
9.53 [3/8] 19.05 [3/4] 46 8 / 0.99 15 / 0.98 23 / 0.97 27 / 0.96 24 / 0.95 22 / 0.94 20 / 0.92 17 / 0.91 15 / 0.90 NR
12.7 [1/2] 19.05 [3/4] 23 8 / 0.99 15 / 0.98 23 / 0.97 30 / 0.96 30 / 0.95 30 / 0.94 30 / 0.92 30 / 0.91 30 / 0.90 NR
9.53 [3/8] 22.23 [7/8] 46 8 / 1.00 15 / 1.00 23 / 0.99 27 / 0.99 24 / 0.99 22 / 0.98 20 / 0.97 17 / 0.97 15 / 0.96 13 / 0.96
12.7 [1/2] 22.23 [7/8] 23 8 / 1.00 15 / 1.00 23 / 0.99 30 / 0.99 30 / 0.99 30 / 0.98 30 / 0.97 30 / 0.97 30 / 0.96 30 / 0.96
15
Air Refrigerant Line Size Information
RA13 Series
Refrigerant Line Size Information
NOTES:
1) Do not exceed 61 meters linear line length.
2) *Do not exceed 30 meters vertical separation if outdoor unit is above indoor unit.
3) *19.05 mm [3/4 in.] vapor line should only be used for 1.5 ton systems if outdoor unit is below or at same level as indoor unit to assure proper oil return.
4) Always use the smallest liquid line allowable to minimize refrigerant charge.
5) Applications shaded in light gray indicate capacity multipliers between 0.90 and 0.96 which are not recommended, but are allowed.
6) Applications shaded in dark gray are not recommended due to excessive liquid or suction pressure drop.
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