Technical data

17 Installation, use and Maintenance manual - ed. 04/14
3.3.2 - Dip Switches
All variable parameters are set by changing the positions of the dip-switches located on
the main control board.
These changes can only be made during mains power off for a minimum of 5
seconds.
Switch Default Function
1 Off Pre Cool Cycle
2 Off Salinity 1
3 On Salinity 2
4 On Salinity 3
5 Off 24 hr dry cicle
6 Off Off speed 1.390 on max speed 1.200
7 Off Off speed1.390 On max speed 1.000
8 Off Enables complete stop in Auto
Dip-Switch 1 – Pre cool cycle: If this is enabled the fan does not start until after 5
minutes of water circulation.
Dip-Switches 2, 3 and 4 – Salinity settings
As the water evaporates the scale forming salts increase in concentration. To control this
function the cooler drains the sump completely when a set concentration is reached. This
is determined volumetrically using the level probes. These dip switches determine the
number of fill cycles prior to this drain.
The concentration factor should be calculated based on the analysis of the water used.
The default setting from the factory is: 2 Off, 3 On, 4 On which is 30% bleed rate
Note that the set number of fill cycles is displayed by the control board LED for 3 seconds
when power is first applied.
2 3 4 Concentration Bleed
OFF OFF OFF No drain 0 %
OFF OFF ON 2,2 46 %
OFF ON OFF 2,8 36 %
OFF ON ON 3,4 30 %
ON OFF OFF 3,9 25 %
ON OFF ON 4,5 22 %
ON ON OFF 5,1 20 %
ON ON ON 5,7 18 %