30 | Operating Temperatures and Pressures LM Series Heat Pump
LM Series Heat Pump8 733 905 315 (2013/9) Subject to change without prior notice
OPERATING TEMPERATURES AND
PRESSURES
Operating Temperatures and Pressures
COOLING HEATING
Model
Entering
Water
Temp. F
Wat
er
Flow
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Water
Temp
Rise °F
Air
Temp
Drop °F
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Water
Temp
Drop
Air
Temp
Rise °F
LM024
Part
Load
30°
4 75-91 264-322 5-6 15-17
8 79-96 270-331 3-4 16-18
40°
4 88-107 277-339 6-7 17-20
8 115-140 175-214 8-9 19-23 92-112 284-348 4-5 18-21
50°
4 129-157 218-267 14-17 18-20 98-122 291-356 7-8 20-23
8 124-151 204-250 8-9 19-22 110-130 298-364 5-6 21-24
60°
4 134-163 249-305 13-16 17-20 112-136 304-372 8-10 22-26
8 128-156 233-287 8-9 18-21 117-143 312-381 6-7 23-28
70°
4 138-168 281-341 13-16 17-19 124-152 318-389 9-11 24-29
8 133-161 263-323 7-9 18-21 131-159 325-398 6-8 26-31
80°
4 143-174 317-388 13-16 16-19 136-166 331-405 11-13 27-32
8 137-167 297-366 7-9 17-20 143-174 339-415 7-9 28-33
90°
4 147-179 357-437 13-16 16-18 149-181 345-422 12-14 29-35
8 141-172 335-411 7-9 17-20 156-190 352-432 8-10 31-37
100°
4 151-185 402-492 13-15 15-18
8 146-177 378-459 7-9 16-19
LM024
Full
Load
30°
4 76-92 242-297 3-4 13-14
8 80-97 249-304 2-3 13-15
40°
4 125-151 180-221 14-18 19-22 89-108 255-312 4-5 15-17
8 120-146 169-207 8-10 20-23 93-113 261-320 3-3 16-18
50°
4 134-163 211-258 14-18 18-21 106-118 267-327 5-6 17-19
8 129-157 198-242 8-10 19-23 110-126 274-335 3-4 18-21
60°
4 139-169 241-295 14-17 18-21 113-138 280-342 6-7 19-22
8 134-163 227-278 8-10 19-22 119-145 287-351 4-5 20-23
70°
4 144-175 272-333 14-17 17-20 126-155 292-358 7-8 21-24
8 138-168 255-313 8-10 18-21 133-162 300-367 5-6 22-26
80°
4 148-181 307-375 14-17 17-19 138-168 305-373 8-9 23-27
8 143-174 288-353 8-10 18-21 145-177 312-382 5-6 24-29
90°
4 153-186 346-423 14-17 16-19 151-184 317-388 8-10 25-29
8 147-179 325-398 8-9 17-20 158-193 325-398 6-7 26-31
100°
4 158-191 389-477 13-16 16-18
8 152-185 366-448 8-9 17-20
This chart shows approximate temperatures and pressures for a unit in good repair. The values shown are meant as
a guide only and should not be used to estimate system charge. This chart assumes rated air flow and 80º d.b./67º
w.b. entering air temperature in cooling, 70º d.b. entering air temperature in heating. Heating data at entering fluid
temperatures below 50º assumes the use of antifreeze. As a result of continuing research and development,
specifications are subject to change without notice.
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