15
Connecting the Chemistry Controller - External Control
EXTERNAL CONTROL is a means of controlling the unit’s operation from an external Chemistry Controller. The External
Control LED will be Red to show that the external controller has the Cell Power turned Off. Green shows the Cell Power
is turned On and that the external controller has energized the unit.
An EXTERNAL CONTROL Cable is supplied with the unit. The cable can be connected in a number of ways and extreme
care must be exercised when it is connected into any external control device. The EXTERNAL CONTROL will respond to
any input signal of 12V to 24V AC or DC (1 Watt maximum) – this input is electrically isolated from the unit –or a dry
contact or switch. The configuration for each connection type is shown below.
OPERATION OF THE ECOMATIC COMMERCIAL SYSTEM
The ECO-matic System passes an electrical current through an electrolytic cell filled with a flowing mild salt solution. The
electrolysis that takes place causes the production of chlorine.
Your ECO-matic System is made up of three main components:
1.
Power Supply
2.
Control Box (includes Gas Sensor)
3.
Electrolytic Cell
We have outlined the operation of the Electrolytic Cell, the Power Supply and Control Box is detailed below:
Power Supply
This component houses all the high power, heat generating elements of the ECO-matic System. This enclosure should
remain closed at all times as mains voltages are present at some points - mostly on the left hand side of the enclosure.
Safety isolation and AC to DC current rectification takes place inside this unit. There are two heat sinks on either side the
enclosure which will become hot to the touch when operating. The inside of the enclosure is fan-cooled to help dissipate
heat generated by the transformer and other components.
