Long Lineset Instructions

Page 12
REFRIGERANT HFC-410A LIQUID LINE PRESSURE DROP/VELOCITY
At 45_F Evaporating Temperature and 125_F Condensing Temperature
30
25
20
15
10
9
8
7
6
5
4
3
2
1.5
1.0
.9
.8
.7
10 9 8 7 6 5 4 3 2 1.5 1.0.9 .8 .7 .6 .5 .4 .3 .2
HFC-410A LIQUID LINE PRESSURE DROP (pounds./100 Feet)
COOLING CAPACITY (TONS)
30
25
20
15
10
9
8
7
6
5
4
3
2
1.5
1.0
.9
.8
.7
COOLING CAPACITY (TONS)
10 9 8 7 6 5 4 3 2 1.5 1.0 .9 .8 .7 .6 .5 .4 .3 .2
HFC-410A LIQUID LINE PRESSURE DROP (pounds./100 Feet)
NOTE—Shaded area denotes unacceptable velocity range.
12.5
To use this chart, first find capacity (tons) on left side of chart. To find pipe size, proceed right to smallest pipe size. Pressure drop (vertical line) and
velocity (diagonal lines) can then be determined for the pipe size selected. For example, for 10 ton unit, select 5/8 in. outside diameter. line.
40 30 20 15
40 30 20 15
Figure 5. HFC-410A Liquid Line