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27
Operating Temperatures and Pressures
COOLING
HEATING
Model
Entering
Water
Temp. °F
Water
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
GZ048
Part
Load
30°
6.0
64-78
248-303
5-6
15-18
12.0
67-82
254-311
3-4
16-19
40°
6.0
109-134
183-224
18-22
19-23
75-91
261-319
6-8
17-21
12.0
105-128
172-210
10-12
20-25
79-96
267-327
4-5
18-23
50°
6.0
118-144
214-261
18-22
19-23
78-90
273-334
8-10
20-24
12.0
113-138
201-245
10-12
20-24
82-95
280-342
5-7
21-26
60°
6.0
122-149
244-298
17-21
18-22
96-117
286-349
9-11
22-27
12.0
117-143
230-281
10-12
19-24
101-123
293-358
6-8
24-29
70°
6.0
126-154
275-336
17-21
18-22
107-131
299-365
11-13
25-30
12.0
121-148
258-316
10-12
19-23
113-138
306-374
7-9
26-32
80°
6.0
130-159
310-378
17-21
17-21
117-143
311-380
12-15
27-33
12.0
132-153
291-356
10-12
18-22
123-151
319-390
8-10
29-35
90°
6.0
134-164
349-426
17-20
17-20
128-157
324-396
13-16
29-36
12.0
129-158
328-401
9-12
18-22
135-165
332-406
9-11
31-38
100°
6.0
139-170
392-480
16-20
16-20
12.0
133-163
369-451
9-11
17-21
GZ048
Full
Load
30°
6.0
71-87
277-339
6-7
15-19
12.0
75-92
284-347
4-5
16-20
40°
6.0
118-144
194-237
21-25
19-23
84-102
291-356
7-9
18-22
12.0
113-138
182-223
12-14
20-24
88-108
299-365
5-6
19-23
50°
6.0
127-155
226-276
21-25
18-22
92-110
305-373
9-11
20-25
12.0
122-149
213-260
12-14
19-24
98-120
313-383
6-7
21-26
60°
6.0
131-160
259-316
21-25
18-22
108-132
320-391
10-13
23-28
12.0
126-154
243-297
12-14
19-23
113-138
328-400
7-9
24-29
70°
6.0
136-166
291-355
20-25
17-21
120-147
334-408
12-15
25-31
12.0
130-159
273-334
12-14
18-22
126-154
342-418
8-10
27-32
80°
6.0
140-171
328-401
20-24
17-20
131-161
348-425
14-17
27-34
12.0
135-165
308-377
11-14
18-22
138-169
356-436
9-11
29-36
90°
6.0
145-177
369-451
20-24
16-20
144-176
362-442
15-18
30-37
12.0
139-170
347-424
11-14
17-21
151-185
371-453
10-12
32-39
100°
6.0
149-183
415-508
19-24
16-19
12.0
143-175
391-477
11-14
17-21
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.