Operating Temperatures and Pressures | 59SM Series Heat Pump
6 720 220 406 (2015/02)Revised 02-15
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
SM048
Part
Load
30°
6 75-95 259-299 4-8 16-20
12 71-91 253-293 1-5 17-21
40°
6 95-115 273-313 5-9 18-22
12 91-111 267-307 2-6 20-24
50°
6 137-157 175-215 14-18 28-32 116-136 288-328 6-10 21-25
12 132-152 161-201 6-10 30-34 112-132 282-322 3-7 23-27
60°
6 139-159 215-255 13-17 27-31 136-156 302-342 8-12 24-28
12 134-154 199-239 6-10 28-32 132-152 296-336 3-7 26-30
70°
6 141-161 255-295 13-17 25-29 157-177 317-357 9-13 27-31
12 136-156 237-277 6-10 26-30 153-173 311-351 4-8 29-33
80°
6 143-163 297-337 12-16 23-27 177-197 331-371 11-15 30-34
12 138-158 276-316 5-9 24-28 173-193 325-365 5-9 33-37
90°
6 145-165 337-377 12-16 22-26
12 140-160 314-354 5-9 23-27
100° 6 147-167 377-417 11-15 20-24
12 142-162 352-392 5-9 21-25
SM048
Full
Load
30°
6 72-92 282-322 6-10 18-22
12 68-88 276-316 2-6 19-23
40°
6 91-111 298-338 8-12 21-25
12 87-107 292-332 3-7 22-26
50°
6 128-148 189-229 19-23 30-34 110-130 313-353 9-13 24-28
12 123-143 175-215 9-13 32-36 106-126 307-347 4-8 26-30
60°
6 130-150 231-271 19-23 29-33 128-148 329-369 11-15 27-31
12 125-145 215-255 9-13 30-34 124-144 323-363 5-9 29-33
70°
6 132-152 273-313 18-22 27-31 147-167 345-385 13-17 30-34
12 127-147 255-295 8-12 29-33 143-163 339-379 6-10 33-37
80°
6 134-154 315-355 18-22 26-30 166-186 361-401 15-19 34-38
12 129-149 294-334 8-12 27-31 162-182 355-395 7-11 37-41
90°
6 136-156 357-397 17-21 24-28
12 131-151 334-374 8-12 26-30
100° 6 138-158 399-439 16-20 23-27
12 133-153 374-414 7-11 24-28
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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