FCI Watermakers MAX-Q+, User Manual & Installation Manual

Page: 61 / 170

FCI WATERMAKERS, INC. 61 Operational Instructions
TEMPERATURE EFFECT — Water temperature has a great effect on the output
of the system. Increased water temperatures increases output at a given pressure.
For systems without APC, it is very critical to adjust the pressure of the machine to
maintain proper fresh‑water production rate. It is more important to produce the rated
output than it is to achieve a certain pressure. It is perfectly normal and acceptable
for your system to produce good quality water while operating at its rated output at
a pressure of 600 PSI. This reduced pressure is most likely caused by an increase in
the seawater temperature, or a reduction in seawater salinity. Refer to Figure 24 .
TEMPERATURE & PRESSURE EFFECTS CHART
1
800
900
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 ºC
GPD
Figure 24: Water Temperature vs. Output (constant pressure)