Operating Temperatures and Pressures | 57SM Series Heat Pump
6 720 220 406 (2015/02)Revised 02-15
OPERATING TEMPERATURES AND
PRESSURES
Operating Temperatures and Pressures
COOLING HEATING
Model Entering
Water
Temp. F
Water
Flow
GPM
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Water
Temp
Rise °F
Air
Temp
Drop °F
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Water
Temp
Drop °F
Air
Temp
Rise °F
SM024
Part
Load
30°
3 76-96 242-282 4-8 16-20
6 72-92 236-276 1-5 17-21
40°
3 97-117 255-295 5-9 19-23
6 93-113 249-289 2-6 20-24
50°
3 140-160 171-211 14-18 21-25 117-137 270-310 6-10 21-25
6 135-155 154-194 6-10 22-26 113-133 263-303 3-7 23-27
60°
3 143-163 210-250 13-17 21-25 138-158 283-323 8-12 24-28
6 138-158 191-231 6-10 21-25 134-154 276-316 3-7 26-30
70°
3 146-166 249-289 13-17 20-24 159-179 298-338 9-13 27-31
6 141-161 228-268 6-10 21-25 155-175 290-330 4-8 29-33
80°
3 148-168 289-329 12-16 20-24 179-199 311-351 11-15 31-35
6 143-163 264-304 5-9 20-24 175-195 303-343 5-9 33-37
90°
3 151-171 328-368 12-16 19-23
6 146-166 301-341 5-9 19-23
100° 3 154-174 367-407 11-15 18-22
6 149-169 337-377 5-9 19-23
SM024
Full
Load
30°
3 71-91 264-304 6-10 18-22
6 67-87 258-298 3-7 19-23
40°
3 131-151 135-175 8-12 20-24
6 127-147 129-169 3-7 22-26
50°
3 134-154 179-219 20-24 22-26 133-153 173-213 9-13 23-27
6 129-149 166-206 9-13 23-27 129-149 166-206 4-8 25-29
60°
3 136-156 219-259 19-23 21-25 135-155 211-251 11-15 26-30
6 131-151 204-244 9-13 22-26 131-151 204-244 5-9 29-33
70°
3 138-158 258-298 19-23 21-25 137-157 249-289 13-17 30-34
6 133-153 241-281 9-13 21-25 133-153 241-281 6-10 32-36
80°
3 140-160 298-338 18-22 20-24 139-159 287-327 15-19 33-37
6 135-155 279-319 8-12 21-25 135-155 279-319 7-11 36-40
90°
3 142-162 337-377 17-21 19-23
6 137-157 316-356 8-12 20-24
100° 3 143-163 377-417 17-21 19-23
6 138-158 354-394 8-12 19-23
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 chat 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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