Evacuation and dehydration of unit
Figure 14: Evacuation of chiller
Table 2: System pressures
11
Gauge
Absolute
Inches of
mercury (Hg)
below one
standars
atmosphere
psia
Millimeters of
mercury (Hg)
Microns
Boiling
temperatures
of water °F
0 14.696 760.00 760,000 212
10.2400 in. 9.629 500.00 500,000 192
22.0500 in. 3.865 200.00 200,000 151
25.9800 in. 1.935 100.00 100,000 124
27.9500 in. .968 50.00 50,000 101
28.9400 in. .481 25.00 25,000 78
29.5300 in. .192 10.00 10,000 52
29.6700 in. .122 6.30 6,300 40
29.7200 in. .099 5.00 5,000 35
29.8420 in. .039 2.00 2,000 15
29.8820 in. .019 1.00 1,000 +1
29.901 in. .010 .50 500 −11
29.917 in. .002 .10 100 −38
29.919 in. .001 .05 50 −50
29.9206 in. .0002 .01 10 −70
29.921 in.
1 One standard atmosphere = 14.696 PSIA = 760 mm Hg. absolute pressure at 32°F = 29.921 inches Hg. absolute at 32°F
Note:
psia = lbs. per sq. in. gauge pressure = Pressure above atmosphere
psia = lbs. per sq. in. absolute pressure = Sum of gauge plus atmospheric pressure
Model YK Style G R-134a or R-513A32
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