Bard FUSION-TEC HR58APB, Service Instructions Manual

Page: 31 / 32

Manual 2100-670
Page 31 of 32
Pressure Service Ports
High and low pressure service ports are installed on
all units so that the system operating pressures can be
observed. Pressures are shown in Table 9.
This unit employs high-flow Coremax valves instead of
the typical Schrader type valves.
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.
TABLE 10
Cooling Pressures
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”.
Full Load Cooling Air Temperature Entering Outdoor Coil °F
Model
Return Air Temp
(DB/WB)
Pressure 75 80 85 90 95 100 105 110 115 120 125
HR58
75/62
Low Side
High Side
129
318 130
340 131
365 132
389 133
414 134
440 136
467 137
495 137
527 139
553 140
584
80/67
Low Side
High Side
138
326 139
349 140
374 141
399 142
425 143
451 145
479 146
508 147
537 149
567 150
599
85/72
Low Side
High Side
143
337 144
361 145
387 146
413 147
440 148
467 150
496 151
526 152
556 154
587 155
620
Part Load Cooling Air Temperature Entering Outdoor Coil °F
Model
Return Air Temp
(DB/WB)
Pressure 75 80 85 90 95 100 105 110 115 120 125
HR58
75/62
Low Side
High Side
135
283 136
304 136
327 137
350 137
375 138
402 138
428 140
456 141
486 142
416 143
547
80/67
Low Side
High Side
144
290 145
312 145
335 146
359 147
385 148
412 148
439 150
468 151
498 152
529 153
561
85/72
Low Side
High Side
149
300 150
323 150
347 151
372 152
398 153
426 154
454 155
484 156
515 157
548 158
581