Instruction Manual

11
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 METERS
0-5 5.5-8 8.5-15 15.5-24
24.5-30 30.5-38 38.5-46
MAXIMUM VERTICAL SEPARATION/CAPACITY MULTIPLIER
1.5 TON 3/8"
1/2" 5 / 18 / 1 15 / 0.99 24 / 0.97 30 / 0.97 35 / 0.96 35 / 0.95
5/8" 5 / 18 / 1 15 / 1 24 / 0.99 30 / 0.99 35 / 0.99 35 / 0.98
3/4" 5 / 18 / 1 15 / 1 24 / 0.99 30 / 0.99 35 / 0.99 35 / 0.98
2 TON 3/8"
5/8" 5 / 18 / 1 15 / 0.99 24 / 0.98 30 / 0.97 30 / 0.96 29 / 0.95
3/4" 5 / 18 / 1 15 / 1 24 / 0.99 30 / 0.99 30 / 0.99 29 / 0.98
2.5 TON 3/8"
5/8" 5 / 18 / 0.99 15 / 0.98 24 / 0.97 29 / 0.96 27 / 0.94 26 / 0.93
3/4" 5 / 18 / 1 15 / 0.99 24 / 0.99 29 / 0.98 27 / 0.98 26 / 0.97
3 TON 3/8"
5/8" 5 / 18 / 0.99 15 / 0.97 24 / 0.95 26 / 0.94 24 / 0.92 23 / 0.9
3/4" 5 / 18 / 1 15 / 0.99 24 / 0.98 26 / 0.98 24 / 0.97 23 / 0.96
7/8" 5 / 18 / 1 15 / 1 24 / 0.99 26 / 0.99 24 / 0.99 23 / 0.98
3.5 TON 3/8"
3/4" 5 / 18 / 0.99 15 / 0.98 24 / 0.97 24 / 0.97 21 / 0.96 20 / 0.95
7/8" 5 / 18 / 1 15 / 0.99 24 / 0.99 24 / 0.99 21 / 0.98 20 / 0.98
4 TON 3/8"
3/4" 5 / 18 / 0.99 15 / 0.98 23 / 0.97 21 / 0.96 18 / 0.95 15 / 0.94
7/8" 5 / 18 / 1 15 / 0.99 23 / 0.99 21 / 0.98 18 / 0.98 15 / 0.97
5 TON 3/8"
3/4" 5 / 18 / 0.99 15 / 0.97 20 / 0.95 14 / 0.94 9 / 0.92 5 / 0.9
7/8" 5 / 18 / 0.99 15 / 0.99 20 / 0.98 14 / 0.97 9 / 0.96 5 / 0.96
Refrigerant Line Size Information (Con’t.)
NOTES:
1) Maximum Equivalent Line Length may not exceed 76 Meters.
2)
Maximum Actual Line Length may not exceed 61 Meters.
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.