Pressure Service Ports - Bard FUSION-TEC WR36BPA Service Instructions Manual

Pressure Service Ports

High and low pressure service ports are installed on all
wall-mount units so that the system operating pressures
can be observed. Pressures are shown in Table 11.
This unit employs high-flow Coremax valves instead of
the typical Schrader type valves.
Full Load Cooling
Return Air Temp
Model
(DB/WB)
75/62
WR36 80/67
85/72
75/62
WR58 80/67
85/72
Part Load Cooling
Return Air Temp
Model
(DB/WB)
75/62
WR36 80/67
85/72
75/62
WR58 80/67
85/72
Low side pressure ± 4 PSIG
High side pressure ± 10 PSIG
Tables are based upon rated CFM (airflow) across the evaporator coil. If there is any doubt as to correct operating charge
being in the system, the charge should be removed and system evacuated and recharged to serial plate charge weight.
NOTE: Pressure table based on high speed condenser fan operation. If condensing pressures appear elevated check
condenser fan wiring. See "Condenser Fan Operation" on page 24.
TABLE 11
Cooling Pressures
Pressure 75 80
Low Side 130 131
High Side 290 312
Low Side 139 140
High Side 297 320
Low Side 144 145
High Side 307 331
Low Side 129 130
High Side 318 340
Low Side 138 139
High Side 326 349
Low Side 143 144
High Side 337 361
Pressure 75 80
Low Side 119 125
High Side 268 288
Low Side 127 134
High Side 275 295
Low Side 131 139
High Side 285 305
Low Side 135 136
High Side 283 304
Low Side 144 145
High Side 290 312
Low Side 149 150
High Side 300 323
WARNING! Do NOT use a Schrader valve core removal
tool with these valves. Use of such a tool could result
in eye injuries or refrigerant burns!
To change a Coremax valve without first removing the
refrigerant, a special tool is required which can be
obtained at www.fastestinc.com/en/SCCA07H. See the
replacement parts manual for replacement core part
numbers.
Air Temperature Entering Outdoor Coil °F
85 90 95 100 105 110 115 120 125
132 134 135 136
334 359 384 411
141 143 144 145
343 368 394 422
146 148 149 150
355 381 408 437
131 132 133 134
365 389 414 440
140 141 142 143
374 399 425 451
145 146 147 148
387 413 440 467
Air Temperature Entering Outdoor Coil °F
85 90 95 100 105 110 115 120 125
131 136 140 143
308 331 354 378
140 145 150 153
316 339 363 388
145 150 155 158
327 351 376 402
136 137 137 138
327 350 375 402
145 146 147 148
335 359 385 412
150 151 152 153
347 372 398 426
137 138 139 140
439 468 498 530
147 148 149 150
450 480 511 544
152 153 154 155
466 497 529 563
136 137 137 139
467 495 527 553
145 146 147 149
479 508 537 567
150 151 152 154
496 526 556 587
146 148 149 150
405 432 460 490
156 158 159 160
415 443 472 503
161 164 165 166
430 459 489 521
138 140 141 142
428 456 486 416
148 150 151 152
439 468 498 529
154 155 156 157
454 484 515 548
Manual 2100-695
Page 41 of 54
142
564
152
578
157
598
140
584
150
599
155
620
149
522
159
535
165
554
143
547
153
561
158
581