Select either BTU/Hr or Tons/hr.
Recommended Pipe Size will appear next to Equivalent Line Lengths.
System Capacity
BTU/Hr
Tons/Hr
Discharge Line Size
Compressor to Condenser
1F° (5 PSI pressure drop maximum)
Equivalent Line Lengths (feet)
Recommended Pipe Size (inches)
25
50
75
100
150
Liquid Condensate Line
Condenser to Receiver
Ccondensate drain/vent
Equivalent Line Lengths (feet)
Recommended Pipe Size (inches)
25
50
75
100
150
DISCHARGE LINE SIZE COMPRESSOR TO CONDENSER 1F° (5 PSI pressure drop maximum)
LIQUID CONDENSATE LINE CONDENSER TO RECEIVER Condensate drain / vent
System Capacity BTU/Hr
System Capacity Tons/Hr
Equivalent Line Lengths (feet)
Equivalent Line Lengths (feet)
25
50
75
100
150
25
50
75
100
150
Notes:
- Refer to DuPont Refrigerant Expert, Version 2.0 for actual velocities and pressure drops.
- Equivalent length is actual length plus friction losses caused by fittings and accessories.
- Line sizes are expressed in outside diameter of type “L” copper tubing.
- Line sizes are calculated at rated full load system capacity.
- All selections are based on a maximum of 65°F return gas entering the compressor and refrigerant condensing and liquid line temperature of 105°F.
- Information provided for reference only. Consult your local expert for specific system recommendations.
- Information provided by Dupont.
