Refrigerant charge determination, Oil charge determination, Figure 12 discharge line sizing – AEC FSS Series 1.5- 10 HP Fountain Solution Systems User Manual
Page 35: 30 – 65°f leaving water temperature
Page 34
FSS Series Fountain Solution Systems
IAE-600
Figure 12
Discharge Line Sizing
30 – 65°F Leaving Water Temperature
Discharge Line Size (O.D.”)
Eqiv. FT
FSS-R-5
FSS-R-7.5
FSS-R-10
FSS-R-15
FSS-R-20
FSS-R-25
FSS-R-30
FSS-R-35
FSS-R-40
25
7/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
50
7/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
75
7/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
100
7/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
1 5/8
125
7/8
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
2 1/8
150
7/8
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
175
1 1/8
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
200
1 1/8
1 3/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
225
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
250
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
275
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
300
1 1/8
1 1/8
1 3/8
1 5/8
1 5/8
2 1/8
2 1/8
2 1/8
2 1/8
Refrigerant Charge Determination
The approximate amount of refrigerant charge required by the
system varies based upon the total length of the refrigerant lines
and the size of the chiller. First refer to Figure 13 for the amount of
charge based upon the model number of the chiller. Then add that
to Figure 14, discharge and liquid line refrigerant charges, based
upon line size and installed length of each. The final operating
charge must be verified by running the system and checking the
liquid line sight glass.
Figure 13
Figure 14
FSR Chiller + Condenser Charge
Field Installed Piping Charge
Chiller
Model
Lbs. of
R-22
Pipe O.D.
Inches
Discharge
Line
c
R-22(Lbs.)
Liquid Line
c
R-22(Lbs.)
FSS-R5
5.9
1/2”
˘
7.2
FSS-R7.5
6.1
5/8”
˘
11.5
FSS-R10
10.8
7/8”
1.6
24.0
FSS-R15
12.6
1 1/8”
2.7
40.9
FSS-R20
21.2
1 3/8”
4.0
62.2
FSS-R25
24.2
1 5/8’
5.7
88.1
FSS-R30
40.2
2 1/8”
10.0
153.0
FSS-R35
41.2
2 5/8”
15.0
236.0
FSS-R40
50.2
c
Based on 100 feet of pipe, 100 ºF Liquid, 100 ºF Discharge
Oil Charge Determination
The FSS-R Series circulators are factory charged with the amount
of oil required without field-installed piping. Additional oil
required is dependent upon the amount of additional refrigerant
added.