Rheem P17 Series Installation Instructions Manual page 14

4.0 INSTALLATION
Table 2A: Refrigerant Line Sizing Chart (English Units)
Unit Size
2.0 Ton
* SEE
NOTE 3
3 Ton
4 Ton
5 Ton
Notes:
1) Do not exceed 150 ft linear line length.
2) Do not exceed 50 ft vertical separation between indoor and outdoor units.
3) * 3/4" vapor line should only be used for 2 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.
14
17 SEER 3-Stage Heat Pumps
Allowable Allowable
Liquid Line Vapor Line
Size Size
1/4" 5/8"
5/16" 5/8"
3/8" 5/8"
1/4" 3/4" *
5/16" 3/4" *
3/8" 3/4" *
5/16" 5/8"
3/8" 5/8"
5/16" 3/4"
3/8" 3/4"
1/2" 3/4"
3/8" 3/4"
1/2" 3/4"
3/8" 7/8"
1/2" 7/8"
3/8" 3/4"
1/2" 3/4"
3/8" 7/8"
1/2" 7/8"
Outdoor Unit ABOVE or BELOW Indoor Unit
Equivalent Length (Feet)
< 25 26-50 51-75
Maximum Vertical Separation / Capacity Multiplier
25 / 0.99 50 / 0.98 29 / 0.97
25 / 0.99 50 / 0.98 50 / 0.97
25 / 0.99 50 / 0.98 50 / 0.97
25 / 1.00 50 / 1.00 29 / 0.99
25 / 1.00 50 / 1.00 50 / 0.99
25 / 1.00 50 / 1.00 50 / 0.99
25 / 0.99 50 / 0.97 50 / 0.95
25 / 0.99 50 / 0.97 50 / 0.95
25 / 1.00 50 / 0.99 50 / 0.99
25 / 1.00 50 / 0.99 50 / 0.99
25 / 1.00 50 / 0.99 50 / 0.99
25 / 0.99 50 / 0.98 50 / 0.97
25 / 0.99 50 / 0.98 50 / 0.97
25 / 1.00 50 / 0.99 50 / 0.99
25 / 1.00 50 / 0.99 50 / 0.99
25 / 0.99 50 / 0.96 50 / 0.94
25 / 0.99 50 / 0.96 50 / 0.94
25 / 1.00 50 / 0.99 50 / 0.98
25 / 1.00 50 / 0.99 50 / 0.98
76-100 101-125 126-150
0 / 0.97 NR
50 / 0.97 50 / 0.96 50 / 0.95
50 / 0.97 50 / 0.96 50 / 0.95
0 / 0.99 NR
50 / 0.99 50 / 0.98 50 / 0.98
50 / 0.99 50 / 0.98 50 / 0.98
49 / 0.93 31 / 0.91
50 / 0.93 50 / 0.91
49 / 0.98 31 / 0.97 14 / 0.96
50 / 0.98 50 / 0.97 50 / 0.96
50 / 0.98 50 / 0.97 50 / 0.96
50 / 0.95 50 / 0.94 50 / 0.92
50 / 0.95 50 / 0.94 50 / 0.92
50 / 0.98 50 / 0.98 50 / 0.97
50 / 0.98 50 / 0.98 50 / 0.97
50 / 0.92 NR
50 / 0.92 NR
50 / 0.97 45 / 0.96 30 / 0.95
50 / 0.97 50 / 0.96 50 / 0.95
NR
NR
NR
NR
NR
NR