Operating Temperatures and Pressures
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59
SM 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.