26
WSHP-SVX10H-EN
Operating Pressures
Use the form on
to log system and unit temperatures
during start-up.
General:
There are many variables (airflow, air temperatures)
in an air conditioning system that will affect operating
refrigerant pressures and temperatures. The chart below
shows approximate conditions and is based on airflow at the
rated SCFM, entering air at 80.6°F DB, 66.2 °F WB in cooling,
68°F DB in heating. (+)Heating data with 35°F EWT is based
on the use of an anti-freeze solution having a freezing point 20
°F lower than the minimum expected entering temperature.
Table 17. Operating pressures
Model
Entering
Water Temp
°F
Water Flow
GPM
Operating Data
Cooling
Heating
Suction
Pressure,
PSIG
Discharge
Pressure,
PSIG
Water Temp
Rise °F
Air Temp
Drop °F DB
Suction
Pressure
PSIG
Discharge
Pressure
PSIG
Water Temp
Drop °F
Air Temp
Rise °F DB
GET*009
35
1.80
—
—
—
—
93-107
298-379
6-8
11-15
GET*009
35
2.25
—
—
—
—
96-111
300-382
5-6
12-15
GET*009
45
1.80
138-159
177-226
12-15
11-15
111-128
315-401
6-8
13-17
GET*009
45
2.25
137-157
171-217
9-12
12-15
114-131
316-403
5-7
14-18
GET*009
55
1.80
140-161
203-258
11-14
11-14
129-149
331-421
8-10
15-19
GET*009
55
2.25
139-160
197-250
9-12
12-15
133-153
332-423
6-8
16-20
GET*009
68
1.80
143-164
244-310
11-14
11-14
156-179
354-450
9-11
18-22
GET*009
68
2.25
142-164
237-301
9-11
12-15
161-185
357-454
7-9
18-23
GET*009
75
1.80
144-166
269-342
11-14
11-14
172-197
367-467
10-12
19-24
GET*009
75
2.25
144-165
262-333
9-11
11-15
177-204
372-473
8-10
19-25
GET*009
86
1.80
146-168
313-399
11-14
11-14
199-229
389-496
11-14
21-26
GET*009
86
2.25
146-168
306-389
8-11
11-15
206-237
394-501
9-12
21-27
GET*009
95
1.80
148-170
355-452
11-13
11-14
—
—
—
—
GET*009
95
2.25
147-170
347-441
8-11
11-14
—
—
—
—
GET*012
35
2.40
—
—
—
—
91-104
279-355
6-8
19-24
GET*012
35
3.00
—
—
—
—
94-108
281-358
4-6
19-24
GET*012
45
2.40
144-166
170-216
11-14
18-23
109-125
294-374
6-8
21-27
GET*012
45
3.00
144-166
164-208
9-11
19-24
111-128
295-375
5-6
21-27
GET*012
55
2.40
145-167
197-251
11-14
18-23
127-146
308-392
7-9
24-31
GET*012
55
3.00
145-167
191-243
9-11
18-23
130-149
311-396
6-7
25-31
GET*012
68
2.40
146-168
240-305
11-14
17-22
153-176
329-419
8-10
27-35
GET*012
68
3.00
146-168
233-296
9-11
18-23
158-181
332-423
7-9
28-36
GET*012
75
2.40
147-169
266-338
11-14
17-21
169-195
341-434
9-11
29-37
GET*012
75
3.00
146-169
259-329
9-11
17-22
174-200
345-438
7-9
29-37
GET*012
86
2.40
148-170
312-397
11-14
16-20
197-226
362-460
10-13
30-39
GET*012
86
3.00
148-170
304-387
9-11
16-21
203-234
365-465
8-10
31-39
GET*012
95
2.40
149-172
357-454
11-14
15-19
—
—
—
—
GET*012
95
3.00
149-172
348-443
9-11
15-19
—
—
—
—
GET*015
35
2.80
—
—
—
—
90-103
272-346
6-8
19-24
GET*015
35
3.80
—
—
—
—
94-108
275-350
4-6
19-24
GET*015
45
2.80
146-168
173-220
12-15
18-23
108-124
286-364
6-8
21-27
GET*015
45
3.80
145-167
165-210
9-11
19-24
111-128
288-367
5-6
21-27
GET*015
55
2.80
146-169
202-257
12-15
18-23
125-144
299-381
7-9
24-31
GET*015
55
3.80
146-168
193-245
9-11
18-23
130-149
302-385
6-7
25-31
GET*015
68
2.80
148-170
245-312
12-15
17-22
151-174
317-404
9-11
27-35
GET*015
68
3.80
147-170
235-299
9-11
18-23
157-181
321-409
7-9
28-36
GET*015
75
2.80
148-171
272-346
12-15
17-21
167-192
328-417
10-12
29-37
GET*015
75
3.80
148-171
261-332
9-11
17-22
174-200
333-423
7-9
29-37