Start-Up
108
WSHP-SVX01Q-EN
Water Pressure Drop
Table 55, p. 108
should be used to define feet of head/
pressure drop. Please note the feet of pressure (ft/head)
provided is at ARI/ISO standard.
To calculate feet of head, when using gauges that read in
PSIG, multiply PSI by 2.31.
EXV*060
35
14.0 —
—
—
—
90-104
301-379
5-6
21-27
EXV*060
45
11.6
132-152
169-219
12-15
21-27
104-120
324-406
7-9
24-31
EXV*060
45
14.0 132-152
164-212
10-13
21-26
106-122
325-407
6-7
24-31
EXV*060
55
11.6
133-153
197-254
12-15
20-26
121-139
343-430
8-10
27-35
EXV*060
55
14.0 133-153
192-247
10-12
21-26
124-142
344-432
7-8
28-35
EXV*060
68
11.6
135-156
235-303
12-15
20-26
146-168
377-472
9-12
31-40
EXV*060
68
14.0 135-156
229-296
10-12
20-26
150-172
380-476
8-10
32-40
EXV*060
75
11.6
136-157
260-335
11-14
20-25
161-185
394-493
10-13
33-42
EXV*060
75
14.0 136-157
253-326
9-12
20-26
165-190
398-499
9-11
34-43
EXV*060
86
11.6
138-159
302-388
11-14
20-25
186-214
424-532
12-15
36-45
EXV*060
86
14.0 138-159
295-379
9-12
20-25
192-221
429-538
10-12
36-46
EXV*060
95
11.6
140-161
339-436
11-14
19-24
—
—
—
—
EXV*060
95
14.0 140-161
332-427
9-12
19-25
—
—
—
—
EXV*070
35
12.32
—
—
—
—
86-100
294-371
6-7
20-26
EXV*070
35
15.4 —
—
—
—
88-102
296-373
5-6
21-26
EXV*070
45
12.32
131-150
166-216
12-15
21-27
101-117
320-401
7-9
23-29
EXV*070
45
15.4 131-150
160-208
10-12
21-27
104-119
322-404
6-7
24-30
EXV*070
55
12.32
131-151
194-252
12-15
21-27
118-136
338-424
8-10
26-33
EXV*070
55
15.4 131-151
188-243
10-12
21-27
121-139
340-427
6-8
27-34
EXV*070
68
12.32
133-153
235-303
12-15
20-26
142-164
374-467
9-12
31-39
EXV*070
68
15.4 133-153
228-294
9-12
21-26
146-168
376-470
8-10
31-40
EXV*070
75
12.32
134-154
259-335
12-15
20-26
157-180
389-487
10-13
33-42
EXV*070
75
15.4 134-154
252-325
9-12
20-26
162-186
393-492
8-11
34-43
EXV*070
86
12.32
136-156
297-384
11-15
20-25
181-209
417-523
12-15
37-47
EXV*070
86
15.4 136-156
289-374
9-12
20-25
188-216
422-529
9-12
38-48
EXV*070
95
12.32
137-158
335-432
11-14
19-25
—
—
—
—
EXV*070
95
15.4 137-158
327-422
9-12
19-25
—
—
—
—
Table 54.
Operating pressures in cooling/heating for EX* units (60 Hz) (continued)
Operating Data
Cooling
Heating
Model
Entering
water
temp (ºF)
Water
flow
(GPM)
Suction
pressure
(psig)
Discharge
pressure
(psig)
Water
temp rise
(ºF)
Air temp
drop
(ºF DB)
Suction
pressure
(psig)
Discharge
pressure
(psig)
Water
Temp drop
(ºF)
Air temp
rise
(ºF DB)
Table 55.
Cooling water pressure drops (WPD) in feet of
head for GE* units - .5- 6 ton
Unit Size
(60 Hz)
Unit Size
(50 Hz)
EWT °F
GPM
Ft.
Pressure
GEH006
—
86
1.8
3.9
GEH009
GEH006
86
2.1
3.7
GEH012
GEH009
86
2.8
3.8
GEH015
GEH012
86
3.5
5.4
GEH018
GEH015
86
4.2
6.8
GEH024
GEH018
86
5.6
13.2
GEH030
GEH024
86
7.0 11.1
—
GEH030
86
8.4
11.5
GEH035
—
86
8.4
5.7
GEH042
GEH036
86
9.8
13.6
GEH048
GEH042
86
11.2
6.8
GEH060
GEH048
86
14.0 12.3
—
GEH060
86
14.0 11.4
GEH072
—
86
18.0
12.0
GEH090
GEH072
86
22.5
13.8
GEH120
GEH090
86
30.0
14.1
GEH150
GEH120
86
37.5
13.4
GEH180
GEH150
86
45.0
18.2
GEV006
—
86
1.8
3.0
GEV009
GEV006
86
2.1
3.9
Table 55.
Cooling water pressure drops (WPD) in feet of
head for GE* units - .5- 6 ton (continued)
Unit Size
(60 Hz)
Unit Size
(50 Hz)
EWT °F
GPM
Ft.
Pressure