Refrigerant Charging tables
Shaded boxes indicate flooded conditions.
Rated design values. The suction pressure will vary from design value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design.
1.All pressures are listed in psig and all temperatures in ° F
2.Discharge temperatures greater than charted values indicate an undercharged system.
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| OUTDOOR TEMPERATURE (° F) |
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Suct. | 70 |
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| 75 |
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| 80 |
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| 85 |
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| 90 |
| 95 |
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| 100 |
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| 105 | |||||||||||
Press. | Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. | Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | ||||||||||||||||||||
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73 | 174 |
| 138 |
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75 | 176 |
| 143 |
| 186 |
| 142 |
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77 | 178 |
| 149 |
| 188 |
| 147 |
| 198 |
| 146 |
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79 | 181 |
| 153 |
| 190 |
| 152 |
| 200 |
| 151 |
| 210 |
| 150 |
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81 | 185 |
| 156 |
| 193 |
| 156 |
| 202 |
| 156 |
| 212 |
| 155 |
| 222 |
| 154 |
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83 |
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| 197 |
| 159 |
| 205 |
| 160 |
| 214 |
| 159 |
| 224 |
| 158 | 234 |
| 158 |
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85 |
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| 209 |
| 163 |
| 217 |
| 163 |
| 226 |
| 163 | 236 |
| 162 |
| 246 |
| 162 |
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87 |
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| 221 |
| 167 |
| 229 |
| 167 | 238 |
| 166 |
| 248 |
| 166 |
| 258 |
| 165 | ||||
89 |
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| 224 |
| 170 |
| 233 |
| 171 | 242 |
| 170 |
| 250 |
| 170 |
| 260 |
| 169 | ||||
91 |
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| 236 |
| 174 | 245 |
| 174 |
| 254 |
| 174 |
| 262 |
| 173 | |||
93 |
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| 248 |
| 178 |
| 257 |
| 178 |
| 266 |
| 177 | ||
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95 |
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| 260 |
| 182 |
| 269 |
| 182 | ||
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97 |
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| 272 |
| 186 | |
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99 |
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Table 8. Charging Table for 3.5 Ton Units
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| OUTDOOR TEMPERATURE (° F) |
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Suct. | 70 |
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| 75 |
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| 80 |
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| 85 |
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| 90 |
| 95 |
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| 100 |
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| 105 | |||||||||||
Press. |
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Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. | Liq. |
| Dis. |
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| Liq. |
| Dis. |
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| Liq. |
| Dis. | |
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| Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | Press. | Temp. | ||||||||||||||||||||
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72 | 150 |
| 125 |
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74 | 153 |
| 130 |
| 167 |
| 131 |
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76 | 155 |
| 135 |
| 169 |
| 136 |
| 184 |
| 138 |
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78 | 155 |
| 144 |
| 171 |
| 141 |
| 186 |
| 143 |
| 200 |
| 144 |
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80 | 159 |
| 147 |
| 172 |
| 148 |
| 188 |
| 148 |
| 202 |
| 149 |
| 217 |
| 151 |
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82 |
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| 176 |
| 151 |
| 190 |
| 153 |
| 204 |
| 154 |
| 219 |
| 155 | 233 |
| 157 |
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84 |
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| 193 |
| 156 |
| 207 |
| 158 |
| 221 |
| 159 | 235 |
| 161 |
| 249 |
| 162 |
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86 |
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| 210 |
| 162 |
| 224 |
| 164 | 237 |
| 165 |
| 251 |
| 166 |
| 266 |
| 168 | ||||
88 |
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| 213 |
| 165 |
| 227 |
| 167 | 241 |
| 169 |
| 253 |
| 170 |
| 268 |
| 172 | ||||
90 |
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| 230 |
| 171 | 244 |
| 173 |
| 257 |
| 175 |
| 270 |
| 176 | |||
92 |
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| 247 |
| 177 |
| 261 |
| 179 |
| 274 |
| 181 | ||
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94 |
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| 264 |
| 183 |
| 278 |
| 185 | ||
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96 |
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| 281 |
| 190 | |
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98 |
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Table 9. Charging Table for 4 Ton Units
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