Rheem 14AJM SERIES - Refrigerant Line Size Information; Liquid Line Sizing (R-410 A); Suction Line Connection Size

Air
Refrigerant Line Size Information
14AJM Series
38
Suction Line Length/Size versus Capacity Multiplier (R-410A)
Suction Line Run—Feet [m]
Optional
Standard
Optional
Optional
Standard
Optional
Optional
Standard
Optional
Optional
Standard
Optional
5 Ton4 Ton3
1
/2 Ton3 Ton2
1
/2 Ton2 TonUnit Size 1
1
/2 Ton
5
/8" [15.88 mm] O.D. Optional
3
/4" [19.05 mm] O.D. Standard*
3
/4" [19.05 mm] O.D. Optional
7
/8" [22.23 mm] O.D. Standard*
7
/8" [22.23 mm] O.D. Optional
1
1
/8" [28.58 mm] O.D. Standard*
25' [7.62]
1.00
1.00
—
1.00
1.00
—
1.00
1.00
1.00
1.00
1.00
—
1.00
1.00
—
1.00
1.00
—
1.00
1.00
—
50' [15.24]
.98
.99
—
.98
.99
—
.96
.98
.99
.98
.99
—
.99
.99
—
.99
.99
—
.99
.99
—
100' [30.48]
.95
.96
—
.95
.96
—
.94
.96
.97
.96
.97
—
.96
.98
—
.96
.98
—
.97
.98
—
150' [45.72]
.92
.93
—
.92
.94
—
.91
.93
.95
.94
.95
—
.94
.96
—
.95
.96
—
.94
.97
—
7/8" [22.23] I.D.Suction Line Connection Size 3/4" [19.05] I.D.
5
/8" [15.88 mm] O.D. Optional
3
/4" [19.05 mm] O.D. Standard*
7
/8" [22.23 mm] O.D. Optional
System
Capacity
Line Size
(Inch O.D.)
[mm]
Liquid Line Size – Outdoor Unit Above Indoor Coil
(Cooling Only—Does not apply to Heat Pumps)
Liquid Line Size – Outdoor Unit Below Indoor Coil
Minimum Vertical Separation—Feet [m] Maximum Vertical Separation—Feet [m]
25
[7.62]
50
[15.24]
75
[22.86]
100
[30.48]
125
[38.10]
150
[45.72]
25
[7.62]
50
[15.24]
75
[22.86]
100
[30.48]
125
[38.10]
150
[45.72]
Total Equivalent Length—Feet [m] Total Equivalent Length—Feet [m]
5/16* [7.94] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 62 [18.90] 58 [17.68] 53 [16.15] 49 [14.94]
1
1
/2 Ton
1/4 [6.35] 0 0 0 0 8 [2.44] 24 [7.32] 25 [7.62] 40 [12.19] 25 [7.62] 9 [2.74] N/A N/A
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 75 [22.86] 72 [21.95] 70 [21.34] 68 [20.73]
3 Ton
5/16 [7.94] 0 0 0 0 0 9 [2.74] 25 [7.62] 50 [15.24] 37 [11.28] 22 [6.71] 7 [2.13] N/A
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 68 [20.73] 63 [19.20] 58 [17.68] 53 [16.15]
3
1
/2 Ton
5/16 [7.94] 0 0 0 16 [4.88] 35 [10.67] 54 [16.46] 25 [7.62] 23 [7.01] 4 [1.22] N/A N/A N/A
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 43 [13.11] 36 [10.97] 30 [9.14] 24 [7.32]
4 Ton
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 46 [14.02] 38 [11.58] 30 [9.14] 22 [6.71] 15 [4.57]
1/2 [12.57] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 56 [17.07] 55 [16.76] 53 [16.15] 52 [15.85]
Liquid Line Sizing (R-410A)
5/16* [7.94] 0 0 0 0 0 0 25 [7.62] 49 [14.94] 38 [11.58] 27 [8.23] 17 [5.18] 6 [1.83]
2
1
/2 Ton
1/4 [6.35] 0 14 [4.27] 56 [17.07] 98 [29.87] N/A N/A 25 [7.62] N/A N/A N/A N/A N/A
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 68 [20.73] 65 [19.81] 62 [18.90] 58 [17.68]
5/16* [7.94] 0 0 0 0 0 0 25 [7.62] 36 [10.97] 29 [8.84] 23 [7.01] 16 [4.88] 9 [2.74]
2 Ton
1/4 [6.35] 0 3 [0.91] 29 [8.84] 55 [16.76] 81 [24.69] 108 [32.92] 23 [7.01] N/A N/A N/A N/A N/A
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 72 [21.95] 70 [21.34] 68 [20.73] 65 [19.81]
3/8
″
[9.53]
3/8
″
[9.53]
3/8
″
[9.53]
3/8
″
[9.53]
3/8
″
[9.53]
Liquid Line
Connection
Size
(Inch I.D.)
3/8
″
[9.53]
5 Ton
3/8* [9.53] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 56 [17.07] 44 [13.41] 32 [9.75] 20 [6.10]
1/2 [12.57] 0 0 0 0 0 0 25 [7.62] 50 [15.24] 75 [22.86] 81 [24.69] 79 [24.08] 76 [23.16]
3/8
″
[9.53]
NOTES: *Standard line size
N/A = Application not recommended.
NOTES: *Standard line size
Using suction line larger than shown in chart will result in poor oil return and is not recommended.
3 Ton Suction Line Connection is 3/4"
[ ] Designates Metric Conversions
Condensing Unit Refrigerant Line Size Information