TABLE 5
(-)ARL SUCTION LINE SIZING
SUCTION LINE SIZE - OUTDOOR UNIT ABOVE INDOOR COIL
R-410A
Line Size
System
Connection
Capacity
Size (Inch
Model
I.D.) [mm]
2 Ton
3/4" [19.05]
3 Ton
3/4" [19.05]
4 Ton
7/8" [22.23]
5 Ton
7/8" [22.23]
2 Ton
7/8" [22.23]
3 Ton
7/8" [22.23]
SUCTION LINE SIZE - OUTDOOR UNIT BELOW INDOOR COIL
R-410A
Line Size
System
Connection
Capacity
Size (Inch
Model
I.D.) [mm]
2 Ton
3/4" [19.05]
3 Ton
3/4" [19.05]
4 Ton
7/8" [22.23]
5 Ton
7/8" [22.23]
2 Ton
3/4" [19.05]
3 Ton
3/4" [19.05]
Line Size
(Inch O.D.)
Outdoor Unit ABOVE Indoor Coil (Cooling Only - Does not apply to Heat Pumps)
[mm]
25 [7.62]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
3/4" [19.05]
7/8" [22.23]*
1-1/8" [28.58]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
Line Size
(Inch O.D.)
Outdoor Unit BELOW Indoor Coil (Cooling Only - Does not apply to Heat Pumps)
[mm]
25 [7.62]
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
5/8" [15.88]
3/4" [19.05]*
Same as Liquid Line Size Table
7/8" [22.23]
Same as Liquid Line Size Table
5/8" [15.88]
3/4" [19.05]*
7/8" [22.23]
Same as Liquid Line Size Table
3/4" [19.05]
7/8" [22.23]*
1-1/8" [28.58]
5/8" [15.88]
Same as Liquid Line Size Table
3/4" [19.05]*
7/8" [22.23]
5/8" [15.88]
3/4" [19.05]*
Same as Liquid Line Size Table
7/8" [22.23]
Same as Liquid Line Size Table
Suction Line Size
Total Equivalent Length - Feet [m]
50 [15.24]
75 [22.86]
16 SEER
Same as Liquid Line Size Table
NA
NA
Same as Liquid Line Size Table
NA
NA
Same as Liquid Line Size Table
Same as Liquid Line Size Table
NA
Same as Liquid Line Size Table
Same as Liquid Line Size Table
NA
18 SEER
NA
NA
NA
Same as Liquid Line Size Table
NA
NA
Suction Line Size
Total Equivalent Length - Feet [m]
50 [15.24]
75 [22.86]
16 SEER
Same as Liquid Line Size Table
NA
NA
Same as Liquid Line Size Table
Same as Liquid Line Size Table
Same as Liquid Line Size Table
Same as Liquid Line Size Table
Same as Liquid Line Size Table
NA
18 SEER
NA
NA
Same as Liquid Line Size Table
100 [30.48]
125 [38.1]
100 [30.48]
125 [38.1]
NA
NA
NA
NA
NA
NA
150 [45.72]
150 [45.72]
13