Rheem R-410A Engineering Manual

Rheem Manufacturing Company 7
Condensing Unit Refrigerant Line Size Information
NOTES:
1) Do NOT use
7
/8 OD suction lines in 2-ton applications where the outdoor unit is located above the indoor coil. Suction line may not have sufficient velocity for oil return.
2) Do NOT use 1
1
/8 OD suction lines in 3-ton applications as they have insufficient velocity for oil return.
3) Do NOT use 1
1
/8 OD suction lines in 4-ton applications where the outdoor unit is located above the indoor coil. Suction line may have insufficient velocity for oil return.
4) Do NOT use 1
1
/8 OD suction lines in 5-ton applications where the outdoor unit is located above the indoor coil. Suction line may have insufficient velocity for oil return.
[ ] Designates Metric Conversions
Vapor Line Run
Feet [m]
3
/4"[19.05 mm]
I.D. Sweat
Unit Vapor Line
Connection Size
5
/8"[15.88 mm]O.D. Opt.
3
/4"[19.05 mm]O.D. Std.
7
/8" [22.23 mm]O.D. Opt.
25'
[7.62]
0.99
1.00
1.01
.99
1.00
0—
50'
[15.24]
0.98
0.99
1.00
0.98
0.99
0—
75' [22.86]
0.97
0.97
0.99
0.97
.98
0—
100' [30.48]
0.95
0.96
0.97
0.96
0.97
0—
3
/4" [19.05 mm]O.D. Opt.
7
/8" [22.23 mm]O.D. Std.
7
/8"[22.23 mm]
I.D. Sweat
Optional
Standard
Optional
Optional
Standard
Optional
Optional
Standard
Optional
Optional
Standard
Optional
Vapor Line Length Size and Capacity Multiplier
036
2
024
1
RARL-
3
/4" [19.05 mm]O.D. Opt.
7
/8" [22.23 mm]O.D. Std.
1
1
/8"[28.58 mm]O.D.Opt.
7
/8"[22.23 mm]
I.D. Sweat
048
3
.99
1.00
1.01
0.98
0.99
1.00
0.97
.98
.99
0.95
0.97
.98
3
/4" [19.05 mm]O.D. Opt.
7
/8" [22.23 mm]O.D. Std.
1
1
/8"[28.58 mm]O.D.Opt.
7
/8"[22.23 mm]
I.D. Sweat
060
4
.99
1.00
1.01
0.98
0.99
1.00
0.97
.98
.99
0.95
0.97
.98
System
Capacity
Model
Line
Size
(Inch O.D.)
[mm]
Standard Refrigerant Charge: Liquid Line Size
RARL- Series Below Indoor Coil
Total Length—Feet [m]
25 [7.62] 50 [15.24] 75 [22.86] 100 [30.48] 125 [38.10]
Vertical Separation—Feet [m]
5/16 [7.94] 23 [7.01] 18 [5.48] 13 [3.96] 88 [2.44] 53 [0.91]
024
1/4* [6.35] 14 [4.27]
*Standard Line Size
NOTES:
1. Example 1: A 2-ton condensing unit with a total line length of 75 feet with a vertical separa-
tion of 15 feet requires a liquid line size of 3/8".
2. This chart may also be used to size horizontal runs. Example 2: A 3-ton condensing unit may
have a total horizontal run of 100 feet if using a 3/8" liquid line.
3. If vertical separation exceeds this chart, use the extended line lengths chart.
4. Always use the smallest liquid line possible to minimize system charge.
036
5/16 [7.94] 25 [7.62] 18 [5.48] 11 [3.35]
3/8* [9.53] 25 [7.62] 27 [8.22] 24 [7.31] 21 [6.40] 18 [5.48]
048
5/16 [7.94] 19 [5.79] 55 [1.52]
1/2 [12.7] 25 [7.62] 30 [9.14] 29 [8.83] 29 [8.83] 28 [8.53]
3/8 [9.53] 25 [7.62] 24 [7.31] 22 [6.70] 20 [6.09] 18 [5.48]
System
Capacity
Model
Line
Size
(Inch O.D.)
[mm]
Extended Line Lengths for use with Supplemental Refrigerant
Charge: Liquid Line Size RARL- Series Below Indoor Coil
036
5/16 [7.94] 25 [7.62] 38 [11.5] 29 [8.83] 15 [4.50]
3/8 [9.53] 25 [7.62] 45 [13.7] 43 [13.1]
Total Length—Feet [m]
41 [12.4] 39 [11.8]
25 [7.62] 50 [15.24] 75 [22.86] 100 [30.48] 125 [38.10]
Vertical Separation—Feet [m]
3/8* [9.53] 25 [7.62] 48 [14.6] 45 [13.7] 41 [12.4] 38 [11.5]
048
5/16 [7.94] 25 [7.62] 39 [11.8] 33 [10.0] 28 [8.53] 23 [7.01]
5/16 [7.94]
024
1/4* [6.35] 25 [7.62] 21 [6.40] 88 [2.44]
25 [7.62] 26 [7.92] 12 [3.65]
1/2 [12.7] 25 [7.62] 50 [15.2] 51 [15.5] 50 [15.2] 49 [14.9]
*Standard Line Size
IMPORTANT: Line sizing by this chart requires a supplemental refrigerant charge. Refer to
charging chart on unit for proper charging with extended line sets.
NOTES:
1. Example 1: A 2-ton condensing unit with a total line length of 75 feet with a vertical separa-
tion of 15 feet requires a minimum liquid line size of 5/16".
2. This chart may also be used to size horizontal runs. Example 2: A 3-ton condensing unit
may have a total horizontal run of 100 feet if using a 5/16" liquid line.
3. The vertical separation indicated on this chart CANNOT be exceeded.
4. Always use the smallest liquid line possible to minimize system charge.
3/8* [9.53] 25 [7.62] 42 [12.8] 37 [11.2] 31 [9.40] 26 [7.92]3/8* [9.53] 25 [7.62] 21 [6.40] 16 [4.87] 11 [3.35] 55 [1.52]
3/8* [9.53]060
5/16 [7.94]
060
25 [7.62] 45 [13.7] 27 [8.22] 59 [2.74]
1/2 [12.7] 25 [7.62] 50 [15.2] 75 [22.9] 79 [24.0] 78 [23.7]
25 [7.62] 50 [15.2] 65 [19.8] 58 [17.6] 52 [15.8]3/8* [9.53] 25 [7.62]
5/16 [7.94]
50 [15.2] 55 [16.8] 48 [14.6] 42 [12.8]
25 [7.62] 35 [10.7] 17 [5.18]
1/2 [12.7] 25 [7.62] 50 [15.2] 51 [15.5] 68 [20.7]

Rheem R-410A Specifications

General

Brand	Rheem
Model	R-410A
Category	Heat Pump
Language	English