Waterco Commandomatic
CONTROLLER DISPLAYS
Volumatic Display
The capacity bar graph display has been implemented to indicate the remaining capacity as a percentage of the
bar, excluding the reserve capacity.
When the remaining capacity reaches the reserve capacity, the capacity bar graph will be blank before indicating
the reserve capacity. As the reserve capacity is depleted, the display will alternate between the capacity bar
graph and the text “RESERVE”. Once the reserve water is being used, the unit will go into regeneration at the set
regeneration time.
The reserve is automatically calculated by the unit to cope with demand. Its value specifies how much more water
the unit can soften before regeneration. The reserve value shown increases until it reaches the reserve limit, at
which point the word “RESERVE” will be replaced with “OVERRUN”.
Calendar Timer Display
As the Calendar Timer is based purely on a set time and date, the capacity bar graph displaying capacity remains
unchanged.
Regeneration/ Backwash Display
During regeneration the capacity bar graph will indicate the percentage of time to completion and will alternate
the display between the capacity bar graph and the text “REGENERATING”.
Low Salt Warning (Softeners & Softeners / Purifiers only)
The “Low Salt” warning keeps track of the number of regeneration’s that have been performed before indicating
“LOW SALT” on the main display. When a low salt condition occurs the main display will toggle between the
capacity bar graph and the text “LOW SALT”. The salt should be replaced and then press the SELECT key to
reset the low salt warning.
Sand and carbon filters do not require the “Low Salt Warning”, therefore the “Low Salt Warning”, must be set to
“0” to de-activate the low salt indicator.
Power Loss
If power is lost to the unit for over seven days, the user settings and time settings are lost. A “POWER LOSS”
message will be shown on power resuming. The unit has battery-backed memory for all service and user
parameters. In the event of a power failure, the time clock in the unit will keep the correct time and all settings
will be retained for up to seven days.
If at the time of the power failure the unit had been regenerating the resin bed, the unit will begin that cycle from
the start as soon as power is resumed to the unit.
NOTE: Even if there is one minute left in the cycle it will always start from the beginning on the resuming power.
Pull tab to activate
memory battery
REPLACING THE A10 VALVE AND CLEANING THE FILTER BED
1. Turn off the mains water inlet tap and open the drain tap to relieve the pressure.
2. Remove the two stainless steel clips and disconnect the drain line.
3. Turn the complete valve anti-clockwise for several turns until it can be lifted clear of the cylinder. The centre tube
assembly may come away with the valve. If so, place a hose back into the bed so that whilst water from the hose
is swirling the bed material, the centre tube can be pushed back down through the bed until the top of the tube
is level or below the top of the cylinder.
4. Re-assemble the unit, using a new “ o ” ring seal with the new valve. Place grease on the valve thread and start
the valve lightly, being careful not to cross the threads. Tighten the valve by hand –DO NOT USE EXCESSIVE FORCE.
5. If a washout is required – lay the unit on a table or support and hose the contents out of the cylinder into a large
bucket or container. Separate the gravel if possible.
6. Wash the sand/ carbon until it is free of mud and dirt.
7. Place the unit in an upright position and replace the centre tube and screen assembly ensuring there is no gravel
left in the bottom of the cylinder. Place a temporary plug in the top of the centre tube then using a large
funnel;replace the cleaned gravel followed by the sand/ carbon. Remove the temporary plug. Refill with water
and re-assemble with the valve as above.
8. Re-connect unit and backwash until clean.
ADDITIONAL DISPLAYS AND SERVICE MENUS
Access Code
Pressing the SELECT key accesses this menu, while the Main display is showing. A 4-digit access code is entered
to set the access level required for setting various values indicated above.
NOTE: The display will always return to the main display if there is no keyboard activity for 15 seconds.
Remaining Cap
(display only)
This displays the true remaining capacity including the reserve capacity in milligrams.
Current Usage
(display only)
This displays the current daily use since the previous day’s regeneration/ backwash time in milligrams.
Previous Usage
(display only)
This displays the previous day’s usage up to the last regeneration/ backwash time in milligrams.
Average Usage
(can be set with access code
8624
)
This displays the current average in milligrams, which can be adjusted.
Set Time
(can be set without access code)
Allows adjustment of the clock time. Note that adjustment of the minutes will reset the seconds to zero.
Calendar Override
(can be set with access code
1357
)
Displays and sets the calendar override function. A value of zero disables this function.
Remaining Regens
(display only)
This displays the number of regeneration cycles left before indicating the warning for “LOW SALT”. Once the low
salt warning appears, further regeneration is halted until the salt is replenished and the low salt warning is reset.
Set Regen Time
(can be set without access code)
Displays and sets the time when automatic regeneration/ backwash should normally occur.
Set Reg. Period
(can be set without access code)
Displays and sets the duration of the regeneration/ backwash cycle in minutes.
Set Capacity
(can be set with access code
8624
)
Displays and sets the capacity of unit. 50 000mg (default)
Set Hardness
(can be set with access code
1357
)
Displays and sets the hardness of the water in milligrams per litre.
Set Salt Warning
(can be set with access code
1357
)
Displays and sets the number of regeneration cycles, which can occur before requiring a refill of salt in the brine
tank. Set salt warning to “0” for Sediment and Carbon Filters to de-activate the low salt warning.
Set Pulses/ Litre
(can be set with access code
8624
)
Displays and sets the calibration for counting flow pulses from the flow sensor.
Flow in 1 min
(display only)
Displays the accumulated number of litres flowing in a one minute period. Pressing the SELECT key can restart
the one minute period.
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