Specifications

17
with parameter P15.
Fixed Reserve
When the fixed reserve is selected, the control multiplies the
maximum system capacity by the percent value set in
parameter P16 and uses the result as a reserve.
Water Usage Pattern
The other reserve option allows the control to adjust the
reserve based upon the historical water usage pattern of the
system. The control keeps track of the water usage for each
day of the week and uses that day’s average usage multiplied
by 1.2 as the reserve for that day. Every day at the Time of
Regeneration, the control recalculates the day’s average
water usage. If less than 10% of a day’s average water usage
is used, the control will not change the day’s average. If more
than twice the day’s average is used, the control uses the
actual usage in the reserve calculation.
Since a new installation has no history of water usage, the
control multiplies the percent of capacity value set in
parameter P16 by the total system capacity to determine
starting average for each day of the week. The factory set
default value for P16 is 30 which means that 30% of the total
system capacity is used for the starting average for each day.
Program parameter P15 is also used to select whether the
control waits until the Time of Regeneration set in parameter
P2 to start a regeneration, or if the control should begin a
regeneration immediately when the capacity remaining is less
than the reserve.
Service and Preventative Maintenance
Injector Screen, Injector and Refill/Backwash
Control
All maintenance items are located on the lower right side of
the valve. See Figure 12.
Inspect and clean the brine tank and filter screen on end of
brine pickup tube once a year or when sediment appears in the
bottom of the brine tank.
Clean the injector, injector screen and refill/backwash control
once a year as follows:
1. Disconnect electrical power to the unit.
2. Shut off the water supply or put bypass valve(s) into
bypass position.
3. Relieve resin tank pressure:
A. Remove control valve cover.
B. Press down on the top of the drive gear to disengage
the cam gear.
C. With the cam gear disengaged, rotate the cam gear
counterclockwise to the Backwash position.
4. Using a screwdriver, unscrew and remove the
refill/backwash control. Clean and flush the control with
a strong stream of water. Lubricate the O-rings with
silicone lubricant and reinstall the control into the valve.
5. Using a screw driver, unscrew and remove the injector
screen and injector cap.
6. Clean screen using a fine brush, flush until clean.
7. Using a needle nose pliers, pull injector straight out.
8. Flush water into the injector screen recess of the valve
body to flush debris out through the injector recess.
9. Clean and flush the injector.
10. Lubricate the O-rings on the injector, injector cap and
injector screen with silicone lubricant.
11. Reinstall the injector, injector cap and injector screen. Do
not overtighten the plastic cap.
12. Rotate the cam gear counterclockwise to a position
between Purge and Service, then slowly open the water
supply valve or return the bypass valve(s) to the Service
position.
13. Reconnect the electrical power to the unit. The cam gear
will rotate until the switch lever opens, turning off the
drive motor in the Service position.
14. Reset the time of day and reinstall the control valve.
cover.
Water Meter
In rare instances, the turbine wheel of the water meter can
collect small particles of oxidized iron, eventually preventing
the wheel from turning.
If the flow indicator light does not blink when conditioned
water is flowing from the unit, it is an indication that the
turbine wheel is not turning.
1. Disconnect electrical power supply to the unit.
2. Shut off the water supply or put the bypass valve(s) into
bypass position.