Page 34
TABLE 12
210 Reheat Compressor 1 Frequency 48Hz - 581019-01
Outdoor
Coil En
tering Air
Temp
Circuit 1 Circuit 2 Circuit 3 Circuit 4
Dis
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc.
+
5
psig
65°F 245 127 267 126 241 120 264 141
75°F 279 130 303 129 279 129 301 146
85°F 317 133 344 132 318 136 342 149
95°F 367 136 393 134 365 143 391 152
105°F 407 139 438 138 409 147 438 155
115°F 461 143 492 141 462 151 493 159
TABLE 13
240 Std. Compressor 1 Frequency 62Hz - 581020-01
Outdoor
Coil En
tering Air
Temp
Circuit 1 Circuit 2 Circuit 3 Circuit 4
Dis
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc.
+
5
psig
65°F 250 117 261 124 252 129 267 139
75°F 289 121 301 128 292 136 310 146
85°F 331 124 348 131 334 140 355 151
95°F 374 126 393 134 379 142 400 154
105°F 425 130 450 138 430 145 456 158
115°F 481 133 507 141 484 148 514 161
TABLE 14
240 Reheat Compressor 1 Frequency 62Hz - 581021-01
Outdoor
Coil En
tering Air
Temp
Circuit 1 Circuit 2 Circuit 3 Circuit 4
Dis
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc.
+
5
psig
65°F 263 122 296 126 239 126 273 140
75°F 304 126 336 126 276 133 312 144
85°F 348 129 384 128 318 138 357 148
95°F 387 129 405 129 373 140 389 148
105°F 442 133 464 133 424 144 440 151
115°F 500 137 523 136 477 147 497 152
TABLE 15
300 Std. Compressor 1 Frequency 68Hz - 581022-01
Outdoor
Coil En
tering Air
Temp
Circuit 1 Circuit 2 Circuit 3 Circuit 4
Dis
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc.
+
5
psig
65°F 260 115 260 118 272 117 269 119
75°F 301 118 304 124 316 126 314 130
85°F 345 121 350 127 362 133 360 138
95°F 387 126 407 130 403 138 412 145
105°F 437 128 460 134 455 141 466 149
115°F 490 131 519 137 510 144 522 154
TABLE 16
300 Reheat Compressor 1 Frequency 68Hz - 581023-01
Outdoor
Coil En
tering Air
Temp
Circuit 1 Circuit 2 Circuit 3 Circuit 4
Dis
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc
+
5
psig
Dis.
+
10
psig
Suc.
+
5
psig
65°F 274 121 295 120 259 114 275 120
75°F 316 124 339 122 301 123 317 128
85°F 363 126 387 124 346 131 362 135
95°F 415 129 442 127 395 137 414 141
105°F 469 132 497 130 447 142 464 144
115°F 525 136 558 133 502 145 519 147
E-Charge Verification - Approach Method - AHRI Testing
(Fin/Tube Coil)
1. Using the same thermometer, compare liquid tempera
ture to outdoor ambient temperature.
Approach Temperature = Liquid temperature (at con
denser outlet) minus ambient temperature.
2. Approach temperature should match values in table
17. An approach temperature greater than value
shown indicates an undercharge. An approach tem
perature less than value shown indicates an over
charge.
3. The approach method is not valid for grossly over or
undercharged systems.
Use tables 7 through 16 as a
guide for typical operating pressures.
TABLE 17
APPROACH TEMPERATURES - FIN/TUBE COIL
Unit
Liquid Temp. Minus Ambient Temp.
1st Stage 2nd Stage 3rd Stage 4th Stage
156 Std.
3.0°F + 1
(1.7°C +
0.5)
6.0°F + 1
(3.3°C +
0.5)
6.5°F + 1
(3.6°C +
0.5)
NA
156
Reheat
1.7°F+1
(0.9°C+
0.5)
1.7°F+1
(0.9°C+
0.5)
2.7°F+1
(1.5°C+
0.5)
NA
180 Std.
2.5°F + 1
(1.4°C +
0.5)
5.0°F + 1
(2.8°C +
0.5)
5.5°F + 1
(3.1°C +
0.5)
NA
180
Reheat
1.0°F + 1
(0.6°C +
0.5)
2.8°F + 1
(1.6°C +
0.5)
4.8°F + 1
(2.7°C +
0.5)
NA
210 Std.
1.0°F + 1
(0.6°C +
0.5)
5.5°F + 1
(3.1°C +
0.5)
3.0°F + 1
(1.7°C +
0.5)
6.0°F + 1
(3.3°C +
0.5)
210
Reheat
2.5°F + 1
(1.4°C +
0.5)
3.7°F + 1
(2.1°C +
0.5)
6.0°F + 1
(3.3°C +
0.5)
4.3°F + 1
(2.4°C +
0.5)
240 Std.
3.5°F + 1
(1.9°C +
0.5)
8.3°F + 1
(4.6°C +
0.5)
4.7°F + 1
(2.6°C +
0.5)
7.5°F + 1
(4.2°C +
0.5)
240
Reheat
1.9°F + 1
(1.1°C +
0.5)
3.8°F + 1
(2.1°C +
0.5)
2.2°F + 1
(1.2°C +
0.5)
5.4°F + 1
(3.0°C +
0.5)
300 Std.
1.5°F+1
(0.8°C+
0.5)
5.5°F+1
(3.1°C+
0.5)
4.0°F+1
(2.2°C+
0.5)
6.5°F+1
(3.6°C+
0.5)
300
Reheat
2.8°F+1
(1.5°C+
0.5)
4.2°F+1
(2.3°C+
0.5)
3.8°F+1
(2.1°C+
0.5)
5.4°F+1
(3.0°C+
0.5)
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