Horizon Reverse Osmosis Seafari Versatile Series, Owner'S Manual

Page: 189 / 209

HRO Systems Horizon
Seafari
Self Contained and Modular Style
APPENDIX B.2
TEMPERATURE EFFECT COMPARISON CHART
(At 850 psi & 35,000 ppm feedwater TDS conditions)
The Temperature Effect Chart on this page illustrates the loss or gain of productivity across the R.O. Membrane.
To determine what normal (in spec.) flow of the system is at 77
°
F / 25
°
C, follow these directions:
1. Determine feed source temperature.
2. Locate the corresponding temperature on the chart.
3. Follow the corresponding temperature in a vertical line up to the plotted production line.
4. From this temperature point at the production line, move left horizontally to the plotted productivity percent.
5. Calculate the system’s present productivity in U.S. gallons per day by multiplying the gallon per hour product
water flowmeter reading by 24.
6. Divide the figure reached in step 5 above, present gallon per day productivity, by the plotted productivity
percentage from step 4 above. The answer will be equivalent to the membranes present productivity at
specification test parameters, 850 psi & 77
°
F / 25
°
C.
Example:
1.
The system is operating at 850 psi & producing product water
2.
The present feed temperature is 61
°
F / 16
°
C.
3.
Plotted productivity is therefore 72% of normal.
4.
The system is a 420 gallon per day model and it is presently producing 290 gallons per day.
5.
290 gallons per day divided by .72 equals 402 gallons per day calculated productivity. The system is rated at 420
gallons per day ± 15% (357 to 483 gallons per day). Therefore the system is within specifications at 290 gallons
per day actual productivity at 61
°
F / 16
°
C, 850 psi, and 35,000 ppm feed.
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42
TEMPERATURE (C)
P
E
R
C
E
N
T
A
G
E
O
F
P
R
O
D
U
C
T
I
O
N
DO NOT EXCEED 100% CAPACITY
12.3 TEMPURATURE EFFECT COMPARISON CHART
Seafari Versatile 450 - 1800
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