Figure 2.1 Refrigerant Sight Glass - Bard W48A2PQ Installation And Service Instructions Manual

Return Air
Model Pressure
Temperature
75° DB Low Side
62° WB High Side
80° DB Low Side
W48
67° WB High Side
85° DB Low Side
72° WB High Side
75° DB Low Side
62° WB High Side
80° DB Low Side
W60
67° WB High Side
85° DB Low Side
72° WB High Side
75° DB Low Side
62° WB High Side
80° DB Low Side
W72
67° WB High Side
85° DB Low Side
72° WB High Side
Low Side Pressure ±4 PSIG
High Side Pressure ±10PSIG
The refrigerant sight glass installed in this unit is not a
charging indicator. Use only universally recommended
practices of charging: superheat, subcooling,and preferably,
weighing in the correct charge. The sight glass is for
moisture reference only.
TABLE 2.1
Nominal Pressures: Models W48, W60, W72
Air Temperature Entering Outdoor Coil, Degree °F
75 80 85
129 130 132
289 309 331
138 139 141
296 317 339
143 144 146
306 328 351
121 122 124
304 325 346
129 131 133
312 333 355
134 136 138
323 345 367
116 117 119
329 350 372
124 125 127
337 359 382
128 129 131
349 372 395
FIGURE 2.1
Refrigerant Sight Glass
90 95 100 105
133 135 136 137
353 376 401 426
142 144 145 146
362 386 411 437
147 149 150 151
375 400 425 452
126 128 130 132
369 392 416 443
135 137 139 141
378 402 427 454
140 142 144 146
391 416 442 470
121 122 123 125
395 419 444 470
129 131 132 134
405 430 455 482
134 136 137 139
419 445 471 499
110 115 120
138 139 141
452 481 509
148 149 151
464 493 522
153 154 156
480 510 540
134 136 137
469 497 527
143 145 147
481 510 540
148 150 152
498 528 559
128 130 132
496 524 552
137 139 141
509 537 566
142 144 146
527 556 586
Manual 2100-642
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