Instruction Manual

10
Refrigerant Line Size Information
RP14AZ
SINGLE AND TWO-STAGE HEAT PUMPS
UNIT SIZE
MAX.
LIQUID
LINE SIZE
SUCTION
LINE SIZE
OUTDOOR UNIT ABOVE OR BELOW INDOOR UNIT
EQUIVALENT LENGTH IN FEET
0-15 16-25 26-50 51-80
81-100 101-125 126-150
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER
1.5 TON 3/8"
1/2" 15 / 1 25 / 1 50 / 0.99 80 / 0.97 100 / 0.97 115 / 0.96 115 / 0.95
5/8" 15 / 1 25 / 1 50 / 1 80 / 0.99 100 / 0.99 115 / 0.99 115 / 0.98
3/4" 15 / 1 25 / 1 50 / 1 80 / 0.99 100 / 0.99 115 / 0.99 115 / 0.98
2 TON 3/8"
5/8" 15 / 1 25 / 1 50 / 0.99 80 / 0.98 100 / 0.97 100 / 0.96 95 / 0.95
3/4" 15 / 1 25 / 1 50 / 1 80 / 0.99 100 / 0.99 100 / 0.99 95 / 0.98
2.5 TON 3/8"
5/8" 15 / 1 25 / 0.99 50 / 0.98 80 / 0.97 95 / 0.96 90 / 0.94 85 / 0.93
3/4" 15 / 1 25 / 1 50 / 0.99 80 / 0.99 95 / 0.98 90 / 0.98 85 / 0.97
3 TON 3/8"
5/8" 15 / 1 25 / 0.99 50 / 0.97 80 / 0.95 85 / 0.94 80 / 0.92 75 / 0.9
3/4" 15 / 1 25 / 1 50 / 0.99 80 / 0.98 85 / 0.98 80 / 0.97 75 / 0.96
7/8" 15 / 1 25 / 1 50 / 1 80 / 0.99 85 / 0.99 80 / 0.99 75 / 0.98
3.5 TON 3/8"
3/4" 15 / 1 25 / 0.99 50 / 0.98 80 / 0.97 80 / 0.97 70 / 0.96 65 / 0.95
7/8" 15 / 1 25 / 1 50 / 0.99 80 / 0.99 80 / 0.99 70 / 0.98 65 / 0.98
4 TON 3/8"
3/4" 15 / 1 25 / 0.99 50 / 0.98 75 / 0.97 70 / 0.96 60 / 0.95 50 / 0.94
7/8" 15 / 1 25 / 1 50 / 0.99 75 / 0.99 70 / 0.98 60 / 0.98 50 / 0.97
5 TON 3/8"
3/4" 15 / 1 25 / 0.99 50 / 0.97 65 / 0.95 45 / 0.94 30 / 0.92 15 / 0.9
7/8" 15 / 1 25 / 0.99 50 / 0.99 65 / 0.98 45 / 0.97 30 / 0.96 15 / 0.96
NOTES:
1) Maximum Equivalent Line Length may not exceed 250'.
2)
Maximum Actual Line Length may not exceed 200'.
3)
Light Grey shaded areas are considered long line and may require accessories as recommended in Long Line Set Guide.
4)
Refer to supplemental Long Line Set Guide for applications that require liquid line size other than 3/8".
5)
DO NOT use suction line traps in the suction riser as this adds additional unwanted pressure drop in the system.
Refrigerant Line Size Information