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Appendix l E-1
Pressure-Temperature Chart for
R-134A Refrigerant
Refrigerant Pressure (PSIG)
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
105
110
115
120
125
130
135
140
145
150
155
160
170
180
190
200
210
220
230
Saturated Temperature
-3
°F {-19.4°C}
7°F {-13.9°C}
15°F {-9.4°C}
22°F {-5.5°C}
29°F {-1.6°C}
35
°F {1.6°C}
40°F {4.4°C}
45°F {7.2°C}
50°F {10°C}
54°F {12.2°C}
58°F {14.4°C}
62°F {16.7°C}
66°F {18.9°C}
69°F {20.5°C}
73°F {22.7°C}
76°F {24.4°C}
79°F {26.1°C}
82°F {27.7°C}
85°F {29.4°C}
88°F {31.1°C}
90°F {32.2°C}
93°F {33.8°C}
96°F {35.5°C}
98°F {36.6°C}
100°F {37.7°C}
103°F {39.4°C}
105°F {40.5°C}
107°F {41.6°C}
109°F {42.7°C}
112°F {44.4°C}
114°F {45.5°C}
116°F {46.6°C}
120°F {48.8°C}
123°F {50.5°C}
127°F {52.7°C}
130°F {54.4°C}
134°F {56.6°C}
137°F {58.3°C}
140°F {60°C}
NOTE: These pressure/
temperature relationships are in
an “At-Rest”, saturated
condition. For example, if the
unit has been in a warehouse at
40°F {4.4°C} and it is brought
to a room where it is 80°F
{26.7°C}, it may require a few
hours for the unit to warm and
the pressure to rise to the
surrounding ambient conditions.
✐