Routine Maintenance - EcoWater ETF AIV-10 Owner's Manual

ECOWATER
S Y S T E M S
4. CHEMICAL FEEDER TRIP VOLUME: If you have
set the auxiliary output control to CF (Chemical
Feeder), you will need to set the volume of water
which must flow past the turbine before the auxil-
iary output is turned on. With the alternating
screens in Fig. 26 shown, use the
â
DOWN buttons to set the trip volume, in gallons.
CLEANING THE NOZZLE & VENTURI
A clean nozzle & venturi (See Figure 28) is a necessi-
ty for the water filter to work properly. This small
component creates the suction to aspirate (bring air
into) the mineral tank during recharges. If it should
become plugged with sand, silt, dirt, etc., the water fil-
ter will not work to remove iron from the water.
To get access to the nozzle & venturi, remove the
water filter's top cover. Put the bypass valve(s) into
the bypass position. Be sure the water filter's main
valve is in "service" position (no water pressure at
nozzle & venturi). Then, holding the nozzle & venturi
housing with one hand, unscrew the cap. Do not lose
the o-ring seal. Lift out the screen support and
screen. Then, remove the nozzle & venturi disc, gas-
ket and flow plug. Wash the parts in warm, soapy
water and rinse in fresh water. Be sure to clean both
the top and bottom of the nozzle & venturi disc. If
needed, use a small brush to remove iron or dirt. Do
not scratch, misshape, etc., surfaces of the nozzle &
venturi.
Gently replace all parts in the correct order. Lubricate
the o-ring seal with silicone grease and locate in
place. Install and tighten the cap by hand, while sup-
porting the housing. Overtightening may break the
cap or housing. Put the bypass valve(s) into "service"
position.
Features / Options
FIG. 26
UP or

ROUTINE MAINTENANCE

13
& Routine Maintenance
(continued)
Then press the SELECT button to display the
screen shown in Fig. 27.
5. CHEMICAL FEEDER TIME: Use the
â
DOWN buttons to set the length of time, in
seconds, that the auxiliary output will be turned on.
Then press the SELECT button to accept and
return to the normal run (time of day) screen.
Cap
O-ring Seal
Screen Support
Screen
Nozzle & Venturi Disc
Gasket
*Flow Plug
Housing
Check Valve
*Install with lettered
side up, concave
side down.
IMPORTANT: Be sure small hole in the gasket is cen-
tered directly over the small hole in the nozzle & ven-
turi housing. Be sure the numbers are facing up
Recharge the filter and advance the valve to the
"aspirate" (A) position. Remove the screen from the
barbed fitting on the inlet of the check valve and
determine whether there is suction. Put the screen
back in place when finished checking.
FIG. 27
UP or
FIG. 28