29
Table 21 — 50PC030 Typical Unit Operating Pressures and Temperatures
LEGEND
*Based on 15% Methanol antifreeze solution.
Table 22 — 50PC036 Typical Unit Operating Pressures and Temperatures
LEGEND
*Based on 15% Methanol antifreeze solution.
Table 23 — 50PC042 Typical Unit Operating Pressures and Temperatures
LEGEND
*Based on 15% Methanol antifreeze solution.
ENTERING
WATER
TEMP
(F)
WATER
FLOW
(GPM/ton)
COOLING HEATING
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Rise
(F)
Air Temp
Drop
(F) DB
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Drop
(F)
Air Temp
Rise
(F) DB
30*
1.5 113-123 188-208 14-19 14-19 19.5-21.5 18-26 67- 77 322-342 8-13 15-20 6.9- 8.9 17-25
2.25 114-124 177-197 14-19 13-18 14.5-16.5 19-27 69- 79 324-344 8-13 15-20 5.1- 7.1 18-26
3 114-124 166-186 14-19 13-18 9.5-11.5 19-27 71- 81 326-346 8-13 15-20 3.3- 5.3 18-26
50
1.5 124-134 248-268 11-16 14-19 18.7-20.7 18-26 95-105 346-366 10-15 15-20 9.8-11.8 23-31
2.25 124-134 233-253 11-16 13-18 13.9-15.9 19-27 99-109 350-370 10-15 15-20 7.3- 9.3 24-32
3 124-134 218-238 11-16 13-18 9.1-11.1 19-27 103-113 355-375 11-16 15-20 4.8- 6.8 25-33
70
1.5 132-142 333-353 9-14 13-18 17.5-19.5 18-26 125-135 376-396 13-18 14-19 12.7-14.7 27-35
2.25 132-142 313-333 9-14 12-17 13.0-15.0 18-26 133-143 386-406 13-18 14-19 9.8-11.8 28-36
3 132-142 293-313 9-14 12-17 8.5-10.5 18-26 136-146 393-413 13-18 14-19 6.4- 8.4 30-38
90
1.5 135-145 431-451 7-12 17-22 16.5-18.5 17-25 155-165 415-435 15-20 13-18 15.6-18.6 33-41
2.25 135-145 411-431 7-12 15-20 12.3-14.3 17-25 167-177 422-442 16-21 13-18 11.8-13.8 34-42
3 135-145 391-411 7-12 13-18 8.0-10.0 17-25 170-180 430-450 17-22 13-18 7.9- 9.9 36-44
110
1.5 140-150 528-548 6-11 17-22 16.2-18.2 16-24 — — — — — —
2.25 140-150 506-526 7-12 15-20 11.9-13.9 16-24 — — — — — —
3 139-149 485-505 7-12 13-18 7.6- 9.6 16-24 — — — — — —
DB — Dry Bulb
——No Heating Operation in This Temperature Range
ENTERING
WATER
TEMP
(F)
WATER
FLOW
(GPM/ton)
COOLING HEATING
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Rise
(F)
Air Temp
Drop
(F) DB
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Drop
(F)
Air Temp
Rise
(F) DB
30*
1.5 113-123 185-205 17-22 9-14 19.5-21.5 18-26 64- 74 327-347 4- 9 15-20 7.7- 9.7 19-27
2.25 113-123 174-194 17-22 8-13 14.5-16.5 19-27 66- 76 331-351 4- 9 15-20 5.7- 7.7 19-27
3 113-123 163-183 17-22 8-13 9.6-11.6 19-27 69- 79 335-365 4- 9 15-20 3.7- 5.7 20-28
50
1.5 121-131 249-269 12-17 9-14 19.4-21.4 17-25 91-101 360-380 10-15 15-20 11.2-13.2 25-33
2.25 120-130 231-251 12-17 8-13 14.4-16.4 18-26 96-106 370-390 9-14 16-21 8.2-10.2 26-34
3 120-130 214-234 12-17 8-13 9.4-11.4 18-26 102-112 380-400 8-13 16-21 5.2- 7.2 27-35
70
1.5 128-138 327-347 9-14 13-18 19.1-21.1 16-24 125-135 402-422 10-15 14-19 14.7-16.7 32-40
2.25 128-138 304-324 9-14 11-16 14.1-16.1 17-25 132-142 413-433 10-15 14-19 11.0-13.0 33-41
3 127-137 282-302 9-14 10-15 9.1-11.1 17-25 140-150 423-443 10-15 14-19 7.3- 9.3 34-42
90
1.5 132-142 416-436 8-13 20-25 18.8-20.8 15-23 158-168 445-465 13-18 12-17 18.1-20.1 37-45
2.25 132-142 396-416 8-13 18-23 13.9-15.9 16-24 167-177 456-476 13-18 11-16 13.8-15.8 38-46
3 131-141 376-396 8-13 16-21 8.9-10.9 16-24 177-187 467-487 14-19 11-16 9.4-11.4 40-48
110
1.5 138-148 550-570 8-13 20-25 18.5-20.5 15-23 — — — — — —
2.25 136-146 525-545 8-13 18-23 13.6-15.6 15-23 — — — — — —
3 135-145 500-520 8-13 16-21 8.7-10.7 15-23 — — — — — —
DB — Dry Bulb
——No Heating Operation in This Temperature Range
ENTERING
WATER
TEMP
(F)
WATER
FLOW
(GPM/ton)
COOLING HEATING
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Rise
(F)
Air Temp
Drop
(F) DB
Suction
Pressure
(psig)
Discharge
Pressure
(psig)
Super-
heat
(F)
Sub-
cooling
(F)
Water
Temp
Drop
(F)
Air Temp
Rise
(F) DB
30*
1.5 115-125 174-194 12-17 10-15 19.8-21.8 16-24 66- 76 314-334 6-11 11-16 7.3- 9.3 18-26
2.25 115-125 159-179 12-17 9-14 14.6-16.6 16-24 69- 79 318-338 5-10 12-17 5.4- 7.4 19-27
3 115-125 144-164 12-17 9-14 9.5-11.5 16-24 72- 82 321-341 4- 9 12-17 3.4- 5.4 19-27
50
1.5 123-133 233-253 9-14 10-15 19.0-21.0 16-24 97-107 354-374 9-14 13-18 10.2-12.2 24-32
2.25 122-132 219-239 9-14 9-14 14.0-16.0 16-24 101-111 360-380 8-13 13-18 7.6- 9.6 25-33
3 122-132 205-225 9-14 9-14 9.1-11.1 16-24 106-116 365-385 6-11 13-18 5.0- 7.0 26-34
70
1.5 128-138 309-329 6-11 12-17 18.3-20.3 16-24 130-140 394-414 7-12 13-18 13.3-15.3 30-38
2.25 128-138 290-310 6-11 11-14 13.5-15.5 16-24 136-146 401-421 7-12 13-18 9.9-11.9 31-39
3 128-138 271-291 6-11 11-14 8.7-10.7 16-24 143-153 409-429 8-13 13-18 6.6- 8.6 32-40
90
1.5 133-143 406-426 5-10 14-19 17.6-19.6 16-24 164-174 434-454 10-15 12-17 16.4-18.4 37-45
2.25 133-143 386-406 5-10 13-18 12.9-14.9 16-24 172-182 443-463 11-16 12-17 12.3-14.3 38-46
3 132-142 367-387 5-10 13-18 8.3-10.3 16-24 180-190 453-473 11-16 12-17 8.3-10.3 39-47
110
1.5 138-148 505-525 5-10 19-24 16.8-18.8 16-24 — — — — — —
2.25 138-148 484-504 5-10 16-21 12.4-14.4 16-24 — — — — — —
3 138-148 463-483 5-10 14-19 7.9- 9.9 16-24 — — — — — —
DB — Dry Bulb
——No Heating Operation in This Temperature Range
