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TABLE 7
KGA/KCA120S Staged Blower Normal Operating Pressures
Outdoor Coil Entering Air Temperature
65 °F 75 °F 85 °F 95 °F 105 °F 115 °F
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Suct
(psig)
Disc
(psig)
Circuit
1
108 263 110 303 109 345 118 399 121 452 124 509
115 269 119 308 123 352 125 398 128 454 132 516
130 290 135 328 139 369 143 420 147 474 150 537
148 319 151 354 155 398 160 440 166 508 170 567
Circuit
2
108 258 109 298 107 340 117 394 120 447 123 506
116 265 119 305 122 350 124 394 127 450 130 512
132 289 135 326 139 366 143 417 146 473 149 539
149 319 152 354 156 397 160 437 165 505 170 566
120S Staged Charging Curves
60
70
80
90
100
110
120
130
100 110 120 130 140 150 160 170
Liquid Temperature ( ° F)
Suction Pressure (psig)
Outdoor Temperature (°F)
115°
105°
95°
85°
75°
65°
Circuit 1
Circuit 2