Daikin AWV024 - Sizing Guidelines for Horizontal; Downflow Suction Lines and Liquid Lines

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Table 5: Sizing Guidelines for Horizontal or Downow Suction Lines and Liquid Lines
NOTE: Target suction temperature loss less than 2.5°F.
Minimum suction line gas velocity target 1000 FPM
on horizontal and downow piping installations where
the evaporator is at or below the chiller elevation.
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)
65 50 Copper 3 5/8
90 50 Copper 3 5/8
115 50 Copper 3 5/8
140 50 Copper 4 1/8
165 50 Copper 4 1/8
190 50 Copper 4 1/8
215 50 Copper 5 1/8
240 50 Copper 5 1/8
265 50 Copper 5 1/8
65 75 Copper 3 5/8
90 75 Copper 3 5/8
115 75 Copper 4 1/8
140 75 Copper 4 1/8
165 75 Copper 5 1/8
190 75 Copper 5 1/8
215 75 Copper 5 1/8
240 75 Copper 5 1/8
265 75 Copper 5 1/8
65 100 Copper 3 5/8
90 100 Copper 3 5/8
115 100 Copper 4 1/8
140 100 Copper 5 1/8
165 100 Copper 5 1/8
190 100 Copper 5 1/8
215 100 Copper 5 1/8
240 100 Copper 6 1/8
265 100 Copper 6 1/8
65 125 Copper 3 5/8
90 125 Copper 4 1/8
115 125 Copper 4 1/8
140 125 Copper 5 1/8
165 125 Copper 5 1/8
190 125 Copper 5 1/8
215 125 Copper 6 1/8
240 125 Copper 6 1/8
265 125 Copper 6 1/8
Recommended Liquid Line Size
Nominal
Circuit
Capacity
Esmated Line
TEL () Line Material
Liquid Line Size
(Inches)
65 50 Copper 1 5/8
90 50 Copper 1 5/8
115 50 Copper 1 5/8
140 50 Copper 1 5/8
165 50 Copper 2 1/8
190 50 Copper 2 1/8
215 50 Copper 2 1/8
240 50 Copper 2 1/8
265 50 Copper 2 1/8
65 75 Copper 1 5/8
90 75 Copper 1 5/8
115 75 Copper 2 1/8
140 75 Copper 2 1/8
165 75 Copper 2 1/8
190 75 Copper 2 1/8
215 75 Copper 2 1/8
240 75 Copper 2 1/8
265 75 Copper 2 5/8
65 100 Copper 1 5/8
90 100 Copper 1 5/8
115 100 Copper 2 1/8
140 100 Copper 2 1/8
165 100 Copper 2 1/8
190 100 Copper 2 1/8
215 100 Copper 2 5/8
240 100 Copper 2 5/8
265 100 Copper 2 5/8
65 125 Copper 1 5/8
90 125 Copper 1 5/8
115 125 Copper 2 1/8
140 125 Copper 2 1/8
165 125 Copper 2 1/8
190 125 Copper 2 5/8
215 125 Copper 2 5/8
240 125 Copper 2 5/8
265 125 Copper 2 5/8