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TM 9-4110-257-14
5-13.
REFRIGERANT SYSTEM PRESSURE CHECK. - Continued
Table 5-1. Pressure Temperature Relationship of Saturated Refrigerant R-134a - Continued
Temperature
Pressure
Deg F
Deg C
psia
kg/cm2
140
60.00
243.86
110.06
142
61.11
250.33
113.54
144
62.22
256.94
116.54
146
63.33
263.67
119.59
148
64.44
270.54
122.71
150
65.55
277.54
125.89
Temperature
Pressure
Deg F
Deg C
psia
kg/cm2
152
66.66
284.67
129.12
154
67.77
291.95
132.42
156
68.88
299.37
135.79
158
70.00
306.64
139.08
160
71.11
314.64
142.71
Table 5-2. Nominal Operating Pressure At Suction And Discharge Shut Off Valves
Air Temperature Entering Evaporator Coil
Air Temperature Entering Condenser Coil 110° F (43° C)
0° F (-18° C)
Suction 1 psi (7 kPa)
Discharge 177 psi (1221 kPa)
35° F (2° C)
Suction 10 psi (69 kPa)
Discharge 199 psi (1373 kPa)
NOTE
FOLLOW-ON MAINTENANCE:
Remove service manifold (para 5-6).
5-30
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