Daikin R-22 Refrigerant Piping Design Manual page 66

Table 40: R-410A Minimum Capacity For Suction Riser (kW)
Saturated Suction
Suction Gas
Temp Temp
(°C) (°C) 12
-17 -12 0.586
-7 -12 0.674
5 -12 0.747
Refrigeration capacity in tons is based on 32°C liquid temperature and superheat as indicated by the listed temperature.
Multiplytable capacities by the following factors for other liquid line temperatures. (Table data based on line size pressure drop
formula shown on page 2.17 of
Liquid Temperature (°C)
27 32 38
1.05 1.00 0.94
Table 41: R-407C Minimum Capacity For Suction Riser (kW)
Saturated Suction
Suction Gas
Temp Temp
(°C) (°C) 12
-17 -12 0.447
-7 -12 0.527
5 -12 0.601
Refrigeration capacity in tons is based on 32°C liquid temperature and superheat as indicated by the listed temperature. Multiply
table capacities by the following factors for other liquid line temperatures. (Table data based on line size pressure drop formula
shown on page 2.17 of ASHRAE Handbook Refrigeration 2006.)
Liquid Temperature (°C)
27 32 38
1.05 1.00 0.95
AG 31-011 • REFRIGERANT PIPING DESIGN
15 18 22
1.113 1.905 2.93
1.275 2.344 3.37
1.406 2.403 3.75
ASHRAE Handbook Refrigeration 2006.)
43 49 54
0.90 0.83 0.77 0.72
15 18 22
0.850 1.450 2.26
0.996 1.699 2.67
1.143 1.934 3.05
43 49 54
0.90 0.85 0.80 0.74
Pipe O .D . (mm)
28 35 42
5.86 10.26 16.1
6.89 12.0 18.8
7.62 13.19 21.1
60
Pipe O .D . (mm)
28 35 42
4.60 8.06 12.6
5.42 9.38 14.94
6.15 10.8 16.99
60
66
54 67 79
33.70 60.36 93.8
38.97 68.86 108.4
43.66 76.18 123.1
54 67 79
26.07 46.00 73.25
30.77 54.21 86.44
35.16 61.53 97.86
www.DaikinApplied.com
92 105
140.6 196.3
161.2 225.6
181.7 252.0
92 105
108.4 152.4
128.9 178.7
146.5 205.1