Traulsen G Series Service Manual page 9

When charging any G-Series Refrigerator with R-450A refrigerant care should be taken to weigh the proper
amount of liquid refrigerant into the system according to the data plate. It is important to charge with
refrigerant in a liquid state to avoid fractionating.
1.5.2.1 Pressure/ Temperature Chart for R-450A Refrigerant
Figure 4: R-450 Blend
58%
42%
Table 1 R-450 Refrigerant Composition
Pressure
10 PSIG
15 PSIG
20 PSIG
25 PSIG
30 PSIG
35 PSIG
40 PSIG
Dew Bubble
13.2°F 12.9°F
21.7°F 20.6°F
29.2°F 28.0°F
35.8°F 34.7°F
41.8°F 40.7°F
47.4°F 46.2°F
52.5°F 51.4°F
R134A
R1234ZE
8