17
Temperature Indicator
Displays the temperature of the water passing the Cell (in degrees Celsius). This temperature is monitored and used by
the Control Box to adjust the unit’s operation (see Winter Mode and High and Low Temperature Shutdown). The
temperature sensor is integrated into the Gas Sensor fitting.
Operation Switches - Control the Cell Power
OFF
- Cell Power is not applied
RESET
- resets all alarms and places unit into STANDBY mode.
Cell Power cannot be applied for approximately 2 minutes.
ON
- allows Cell Power to be applied from 10% to 100% (all the time), or from
the EXTERNAL CONTROL input (see below).
The System Output Control operates by a form of Pulse Width Modulation. This form of control works by switching the
Cell current on and off over a period of time with the result that the system output is averaged. For example if the control
is set at 50(%) the unit will operate at its normal output for only half the time that the unit is on with the averaged output
being 50%.
Winter Mode Switch
When Winter Mode is sele cted the unit will adjust its output to suit the water temperature of the pool. The amount of
current that the Cell can draw is determined by the water conductivity, which in turn is influenced by salinity and water
temperature. As the water temperature falls, so does its conductivity. If there was no modification of the unit’s operation
this reduction in conductivity would result in the eventual shutdown of the unit via the Low Conductivity Shutdown. With
Winter Mode selected the output of the unit will reduce with temperature. The reduction with temperature will
approximately follow the table:
TEMPERATURE
% OUTPUT
> 72ºF
> 22ºC
100
< 70ºF
< 21ºC
85
< 64ºF
< 18ºC
75
< 59ºF
< 15ºC
70
< 54ºF
< 12ºC
65
When Winter Mode is in operation < 21C (70ºF) approx, the display LED will be Blue. See also High and Low
Temperature Shutdown.
Stand By
Red shows that the unit is waiting to produce chlorine; this occurs at polarity reversal, RESET and power - up of the unit.
The STANDBY delay is approximately 2 minutes. After the delay the LED will be Green indicating readiness to produce
chlorine.
Cell Power LED
Red shows that the cell is not powered, Green shows that the cell is on. If the output is set at less than 100 the Cell will
turn on and off automatically. This is how the output is reduced.
FLOW/GAS LED
Red shows a problem with either water flow and/or a gas build up at the Gas Sensor.
Green
shows
normal operation
.
When
Red
, the
Cell Power will be turned off until the problem is rectified.
Low Conductivity Display & Shutdown
This display consists of two LEDs, one to display LOW CONDUCTIVITY and the other to display the
LOW CONDUCTIVITY SHUTDOWN. The first LED will sho w Red when the conductivity falls below a
certain point. If the conductivity continues to fall the second LED will go Red and th is will cut power to
the Cell until the problem has been rectified. The LEDs will be Green for normal operation. In cases
