Refrigerant Charging Charts for
Cooling Mode of Operation
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| 600 |
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| 575 |
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| 550 |
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| 525 |
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| 500 |
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| R em ove refrigerant | w hen above curve |
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| 475 |
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(PSIG) | 450 |
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425 |
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PRESSURE |
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400 |
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375 |
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LIQUID | 350 |
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325 |
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| Add refrigerant | w hen below curve |
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| 300 |
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| 275 |
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| 250 |
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| 225 |
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| 200 |
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| 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 |
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| LIQUID TEMPERATURE (F) |
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Figure 11. Charging Chart for 2 ton Units
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| 600 |
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| 575 |
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| 550 |
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| 525 |
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| 500 |
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| R em ove refrigerant | w hen above curve |
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| 475 |
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(PSIG) | 450 |
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425 |
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PRESSURE |
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400 |
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375 |
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LIQUID | 350 |
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325 |
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| Add refrigerant | w hen below curve |
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| 300 |
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| 275 |
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| 250 |
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| 225 |
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| 200 |
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| 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 |
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| LIQUID TEMPERATURE (F) |
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Figure 12. Charging Chart for 3 ton Units
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