Daikin AWV024 - Page 31

InsTallaTIon and applICaTIon ConsIderaTIons - remoTe evaporaTors
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MODEL AWV CHILLERS
Table 8: Alternate Sizing Guidelines for Horizontal or
Downow Suction Lines - Steel
NOTE: FOR STEEL LINES ONLY
Target suction temperature loss less than 2.5°F.
Maximum allowable suction line temperature loss target 5°F.
Only recommended on applications that require ≥6”
diameter suction lines as an alternate for copper.
For use in horizontal and down ow 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.
Table 9: Sizing Guidelines for Upow Lines
NOTE: Target suction temperature loss less than 2.5°F.
Minimum suction line gas velocity target 1500 FPM
on vertical upow suction line piping risers.
Maximum allowable suction line temperature loss
target 5°F; some selections are greater than 5°F
due to minimum velocity requirements at minimum
compressor speed.
Recommended Horizontal or Downow Sucon Line Size
Nominal Circuit
Capacity
Esmated Line
TEL () Line Material
Sucon Line
Size (Inches)
240 100 Steel 6
265 100 Steel 6
215 125 Steel 6
240 125 Steel 6
265 125 Steel 6
190 150 Steel 6
215 150 Steel 6
240 150 Steel 6
265 150 Steel 6
190 175 Steel 6
215 175 Steel 6
240 175 Steel 6
265 175 Steel 6
190 200 Steel 6
215 200 Steel 6
240 200 Steel 6
265 200 Steel 6
190 225 Steel 6
215 225 Steel 6
240 225 Steel 6
265 225 Steel 6
190 250 Steel 6
215 250 Steel 6
240 250 Steel 6
265 250 Steel 6
190 275 Steel 6
215 275 Steel 6
240 275 Steel 6
265 275 Steel 6
190 300 Steel 6
215 300 Steel 6
240 300 Steel 6
265 300 Steel 6
Recommended Upow Sucon Line Size
Nominal Circuit
Capacity Line Material
Sucon Line
Size (Inches)
Esmated Line
TEL ()
65 Copper 3 5/8 50
90 Copper 3 5/8 50
115 Copper 3 5/8 50
140 Copper 4 1/8 50
165 Copper 4 1/8 50
190 Copper 5 1/8 50
215 Copper 5 1/8 50
240 Copper 5 1/8 50
265 Copper 5 1/8 50
65 Copper 3 5/8 75
90 Copper 3 5/8 75
115 Copper 3 5/8 75
140 Copper 4 1/8 75
165 Copper 4 1/8 75
190 Copper 5 1/8 75
215 Copper 5 1/8 75
240 Copper 5 1/8 75
265 Copper 5 1/8 75