Daikin R22, Refrigerant Piping Design Manual, Page: 54 / 78

AG 31-011 • REFRIGERANT PIPING DESIGN 54 www.DaikinApplied.com
Figure 24: R-407C Suction Gas Velocity
Figure 24 is based on 40°F suction temperature and 105°F condensing temperature. For other conditions, apply correction factors
from Table 26 .
Table 26: R-407C Suction Gas Velocity Correction Factors
Cond Temp
(°F)
Suction Temperature (°F)
10 15 20 25 30 35 40 45 50
85 1.78 1.49 1.35 1.21 1.10 0.99 0.90 0.82 0.75
90 1.82 1.53 1.38 1.24 1.12 1.02 0.92 0.84 0.76
95 1.75 1.57 1.42 1.28 1.15 1.04 0.95 0.86 0.78
100 1.80 1.62 1.46 1.31 1.19 1.07 0.97 0.88 0.80
105 1.86 1.78 1.50 1.35 1.22 1.10 1.00 0.91 0.83
110 1.91 1.72 1.54 1.39 1.26 1.14 1.03 0.93 0.85
115 1.98 1.77 1.59 1.43 1.29 1.17 1.06 0.96 0.87
120 2.04 1.83 1.75 1.48 1.34 1.21 1.09 0.99 0.90
125 2.12 1.90 1.81 1.53 1.38 1.25 1.13 1.03 0.93
130 2.20 1.97 1.77 1.59 1.43 1.29 1.17 1.06 0.96
135 2.29 2.05 1.84 1.76 1.49 1.34 1.22 1.10 1.00
140 2.38 2.13 1.91 1.72 1.55 1.40 1.26 1.15 1.04
145 2.49 2.23 2.00 1.79 1.72 1.46 1.32 1.19 1.08