Daikin Pathfinder AWV Installation, Operation And Maintenance Manual page 37

Table 9: Alternate Sizing Guidelines for Horizontal or
Downflow Suction Lines - Steel
Recommended Horizontal or Downflow Suction Line Size
Nominal Circuit Estimated Line
Capacity TEL (ft)
240 100
265 100
215 125
240 125
265 125
190 150
215 150
240 150
265 150
190 175
215 175
240 175
265 175
190 200
215 200
240 200
265 200
190 225
215 225
240 225
265 225
190 250
215 250
240 250
265 250
190 275
215 275
240 275
265 275
190 300
215 300
240 300
265 300
NOTE: FOR STEEL LINES ONLY
For use in horizontal and down flow applications only where
the evaporator is at or below the chiller elevation.
Recommend schedule 40 steel pipe.
Carbon steel pipe shall be ASTM Standard A 53 Grade B,
Type E (electric resistance welded) or Type S (seamless); or
ASTM Standard A 106 Grade B (seamless). Standard A 53
Type F is not permitted.
Refrigeration piping design and fabrication should be in
accordance with the applicable sections of ASME B31.5 -
Refrigeration Piping and Heat Transfer Components for the
steel piping.
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Installation and Application Considerations - Remote Evaporators
Suction Line
Line Material Size (Inches)
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Steel 6
Table 10: Sizing Guidelines for Upflow Lines
Recommended Upflow Suction Line Size
Nominal Circuit
Capacity Line Material
65 Copper
90 Copper
115 Copper
140 Copper
165 Copper
190 Copper
215 Copper
240 Copper
265 Copper
65 Copper
90 Copper
115 Copper
140 Copper
165 Copper
190 Copper
215 Copper
240 Copper
265 Copper
37 IOM 1242-8 • PATHFINDER
Suction Line Estimated Line
Size (Inches) TEL (ft)
3 5/8 50
3 5/8 50
3 5/8 50
4 1/8 50
4 1/8 50
5 1/8 50
5 1/8 50
5 1/8 50
5 1/8 50
3 5/8 75
3 5/8 75
3 5/8 75
4 1/8 75
4 1/8 75
5 1/8 75
5 1/8 75
5 1/8 75
5 1/8 75
MODEL AWV CHILLERS
®