TM 10-4610-239-24
TM 08580B-24/3
11.
MULTIMEDIA FILTER CONTROL VALVE. Routes water flow into and out of multimedia filter. During normal
ROWPU operation, the multimedia filter control valve routes raw water from backwash valve to top of
multimedia filter while routing filtered output from bottom of multimedia filter to booster pump. During backwash,
the multimedia control valve routes brine from backwash valve to bottom of multimedia filter while routing
contaminated water from top of multimedia filter out of ROWPU through WASTE outlet on front panel. The
multimedia filter control valve also changes flow rate during different stages of backwash.
12.
MULTIMEDIA FILTER. Performs first stage filtration. Removes most dissolved solids.
13.
MULTIMEDIA FILTER GAGE. Indicates differential pressure across multimedia filter.
14.
VENT MULTIMEDIA FILTER VALVE. Releases air from multimedia filter while filter is filling during ROWPU
startup.
15.
BOOSTER PUMP. Forces output of multimedia filter through the cartridge filter.
16.
CARTRIDGE FILTER. Performs second stage filtration. Removes very small dissolved solids.
17.
CARTRIDGE FILTER GAGE. Indicates differential pressure across cartridge filter.
18.
VENT CARTRIDGE FILTER VALVE. Releases air from cartridge filter while filter is filling during ROWPU
startup.
19.
LOW-PRESSURE SWITCH. Senses pressure in output line from cartridge filter. When line pressure drops below
10 psi, causes R.O. pump to shut down and R.O. PUMP LOW PRESSURE indicator light.
20.
R.O. PUMP. Develops high pressure needed to force output of cartridge filter through R.O. elements.
21.
RUPTURE DISK. Ruptures to relieve pressure if pressure reaches 1425 psi as indicated on R.O. PRESSURE
PSI gage. Prevents damage to system if high-pressure relief valve fails to open and high-pressure switch fails to
shut down the R.O. pump.
22.
PULSE DAMPENER. Reduces pulsing effect of R.O. pump. Smoothes flow of water through R.O. elements.
23.
VENT PULSE DAMPENER VALVE. Releases air from pulse dampener while pulse dampener is filling during
ROWPU startup.
24.
HIGH-PRESSURE RELIEF VALVE. Opens to relieve pressure if pressure in line between pulse dampener and
R.O. elements goes above 1100 psi.
25.
HIGH-PRESSURE SWITCH. Senses pressure in line between pulse dampener and R.O. elements. If pressure
rises above 1250 psi and high-pressure relief valve fails to open, causes R.O. pump to shut down and R.O.
PUMP HIGH PRESSURE indicator to light.
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