TM 10-4610-241-10
TO 40W4-13-41
2-2. ROWPU CONTROLS AND INDICATORS- cont.
Table 2-1. ROWPU Controls and Indicators - Cont.
Function
Key
Control or Indicator
1 8
Regulate Product Flow Valve
19
Brine Outlet
20
Product Water Flow Meter
21
Vent Vessel Outlet
22
23
Cartridge Filter Gauge
Measures pressure drop across cartridge filter.
Product Water Outlet
Connection for drinking water from ROWPU to product water tank.
24
R.O. Element Cleaning Switch
25
26
27
28
29
30
31
32
R.O. Pump Low Pressure
Indicator Lamp
R.O. Pump High Pressure
Indicator Lamp
Distribution Pump Indicator
Lamp
Raw Water Pump No. 1
Indicator Lamp
Raw Water Pump No. 2 Indicator
Lamp
Chemical Feed Pump Indicator
Lamp
Booster Pump Indicator Lamp
R.O. Pump Indicator Lamp
Closes the brine outlet of the R.O. vessels. Controls product water flow
rate. Regulates output pressure of the R.O. pump.
Connection for brine water hose from ROWPU brine tank.
Shows the number of gallons per minute of potable water put out by the
ROWPU.
Diverts water from R.O. vessels. Also inputs R.O. element cleaning
solution.
CAUTION
Element Cleaning switch must be OFF during normal operation to prevent
damage to backwash pump.
Used to operate backwash pump during cleaning of R.O. elements (switch
must be OFF and cover down in down position at all other times). (See
figure 2-5, sheet 1).
NOTE
See figure 2-5, sheet 2 for illustration of items 25 through 44.
Lamp comes on when R.O. pump suction pressure drops below 10 psi (for
Models WPES-10, WPES-20, and WPES-30) or 40 psi (Models H-9518-
1, H-9518-2, and H-9518-3). This lamp also indicates that R.O. Pump
should have shut off.
Lamp comes on when R.O. Pump discharge pressure is higher than 1250
psi. This lamp also indicates that R.O. pump should have shut off.
Lamp comes on when power has been applied to distribution pump.
Lamp comes on when power has been applied to raw water pump No.1,
Lamp comes on when power has been applied to raw water pump No.2.
Lamp comes on when power has been applied to chemical feed pump.
Lamp comes on when power has been applied to booster pump.
Lamp comes on when power has been applied to R.O. pump.
2-10 Change 2
