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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.
REFRIGERANT CHARGING TABLES
Table 8. Charging Table for 3.5 Ton Units
Suct.
Press.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
73 174 138
75 176 143 186 142
77 178 149 188 147 198 146
79 181 153 190 152 200 151 210 150
81 185 156 193 156 202 156 212 155 222 154
83 197 159 205 160 214 159 224 158 234 158
85 209 163 217 163 226 163 236 162 246 162
87 221 167 229 167 238 166 248 166 258 165
89 224 170 233 171 242 170 250 170 260 169
91 236 174 245 174 254 174 262 173
93 248 178 257 178 266 177
95 260 182 269 182
97 272 186
99
Table 9. Charging Table for 4 Ton Units
Suct.
Press.
OUTDOOR TEMPERATURE (° F)
70 75 80 85 90 95 100 105
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
Liq.
Press.
Dis.
Temp.
72 150 125
74 153 130 167 131
76 155 135 169 136 184 138
78 155 144 171 141 186 143 200 144
80 159 147 172 148 188 148 202 149 217 151
82 176 151 190 153 204 154 219 155 233 157
84 193 156 207 158 221 159 235 161 249 162
86 210 162 224 164 237 165 251 166 266 168
88 213 165 227 167 241 169 253 170 268 172
90 230 171 244 173 257 175 270 176
92 247 177 261 179 274 181
94 264 183 278 185
96 281 190
98