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REFRIGERANT CHARGING CHART
Heating Mode of Operation
PROCEDURE FOR CHARGING 10-TON HEAT PUMP IN HEATING MODE.
1. Evacuate the refrigerant system.
2. Charge the system by weighing in 30 lbs R-22 refrigerant. This is the recommended charge for 5/8 inch 15 foot line set.
For line sets other than 15 feet add 9.0 oz. R-22 per additional 5 feet of 5/8 inch liquid line over 15 feet and remove 9.0 oz per 5 feet less than
15 feet of liquid line.
3. Ensure that the unit is operating properly per the heating functional checkout in these installation instructions.
7.5 Ton OUTDOOR TEMPERATURE (DEG. F)
0102030405060
Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch. Suc. Liquid Disch.
Press Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp. Press. Press. Temp.
19 134 135 20 140 135 21 146 136 22 152 136 32 162 157 51 199 198 61 248 179
20 141 133 21 146 133 22 151 134 23 156 134 33 169 154 52 206 193 62 255 185
21 148 131 22 152 131 23 156 132 24 160 132 34 176 151 53 213 189 63 262 191
22 155 129 23 158 129 24 160 130 25 163 130 35 183 148 54 220 184 64 269 198
23 162 127 24 163 127 25 165 128 26 167 128 36 190 146 55 227 180 65 276 204
24 169 125 25 169 125 26 170 126 27 171 126 37 197 143 56 234 175 66 283 210
25 176 123 26 175 123 27 175 124 28 174 124 38 204 140 57 241 171 67 290 216
*Note: All pressures are listed in psig. and all temperatures in deg. F.
- Shaded Boxes indicate fl ooded conditions
- Rated Design Values. Suction Pressure will be lower than design
value if indoor air fl ow, entering dry bulb, or entering wet bulb
temperatures are lower than design.
- Discharge temperatures greater than charted values indicates a
refrigerant undercharge.