Drawing 10148 REV 0 24-11-15
System Set-up (Cont)
Maintenance. To enter the maintenance section from the system menu press “Maintenance”. From
here all controller parameters can be changed and you should only alter parameters if you have been
trained on the use of the TEC4000 chemical controller.
Calibrate. To maintain control of water quality the TEC4000 Control System needs calibrating.
Calibration adjusts the rate of probe response. The unit can only be calibrated when there is
between 0.5 to 7.5 ppm of free chlorine in the water but it is best calibrated when the pool water
is at or near to setpoint. Before calibrating check that the flow puck is adjacent to the flow switch.
Always calibrate using DPD1 results taken from the sample tap. When taking a DPD1 test, a
dilution test must be carried out if the first test is above 2ppm.
If inverters are installed the unit will automatically calibrate at a low and high speed.
After the TEC4000 shows “Calibrating the probe” it will provide you with a figure up to 255 the
lower the number the better condition of the probe. If the number is above 200 or the failed message
shows, clean the probe and recalibrate. If it fails again contact Topline.
The chlorine probe is now calibrated. After returning to the operating screen after calibrating close
the input and output valves, to see if the chlorine reading drops to zero (DROP TEST), if this does
not happen refer to the trouble shooting section in this manual.
Alarm levels. The chlorine, pH and redox all have variable upper and lower alarm levels. When
there is an alarm the TEC4000 flashes the type of alarm and activates the alarm relay to provide a
remote signal if required. The output from the alarm relay is volts free and either normally open or
normally closed. To change an alarm level, select the item to change. Enter the value required and
press “enter” followed by “exit” to return to the maintenance menu.
Note when the unit enters pH high alarm condition then the TEC4000 control system will stop
pumping chlorine, even if the water requires chlorine and will not start pumping chlorine until the
unit has regained pH control.
Set points. The chlorine, pH and redox all have variable set points. The set point is the level of
chlorine (oxidiser) or pH level that is to be maintained in the pool or spa. When the pool or spa
reaches set point the chemical addition will stop immediately. Chlorine levels are increased, pH
levels decreased by acid and increased by alkali. To change a set point level, select the item to
change. Enter the value required and press “enter” followed by “exit” to return to the maintenance
menu.
Inputs and Outputs Menu
Dosing Pumps The TEC4000 controls the dosing pumps for chlorine (oxidiser), pH-(acid) and pH+
(alkali). To control these pumps the unit needs to know the “pool volume”, “pump size”,
“chemical” being dosed. These figures are needed so the TEC4000 can calculate the period the
dosing pump will run to change a level by 0.1.
The “min run” period is entered so solenoid driven pumps will all ways be activated, this should be
set between 4 and 12 seconds depending on the type and size of pump being controlled.
The “range” is entered so that the controller can vary the amount of time a dosing pump is
switched on, depending on how far away the current chemical level is from set point.
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