Davey BMSC Series ECOSALT Salt Water Pool Systems - Manual (Page 7)

• Page 7 •
EcoSalt ™ SPECIAL FEATURES:
SYSTEM CONTROL (SANITISER OUTPUT DIAL):
The System Control varies the amount of time the Cell operates during the filtration cycle.
The System Control will not vary the electrical current supplied to the Cell.
As an example, if one filtration cycle is set at 5 hours, and the System Control is set to 80%, then the total
amount of time the Cell will operate during the 5-hour cycle will be 4 hours. If the System Control is set to 60%,
the Cell will operate for 3 hours total over the 5-hour filtration cycle. At 100% the Cell will be ON for the entire 5
hour cycle.
When the System Control is set to 0, the Cell will be OFF for the duration of the filtration cycle. When the System
Control is set to 100%, the Cell will be ON for the duration of the filtration cycle.
To turn the Cell OFF, simply turn the System Control to 0.
NOTE: It is recommended to turn the sanitiser output dial to “0” when back washing..
POLARITY INDICATORS A & B:
These LEDs are used to check that the Cell current polarity is reversing. Whichever is on (or brightest) indicates the
polarity of operation. The Cell will operate in one polarity for a number of hours so any change in these LEDs will
happen slowly and depend on how the unit is operated.
LOW SALINITY INDICATION
Your EcoSalt
™ is fitted with a number of protective systems including the operation LED whose primary function
includes Low Salinity Indicator. As the salt level in the pool decreases, the wear on the Cell increases. Although
salt is not consumed in the EcoSalt process, it is lost through splashing, back washing and on bathers as they leave
the pool. The salt level is also reduced by rain, which causes dilution. Salt is not lost to evaporation.
As the salt level in the pool falls toward the minimum Operation LED will turn RED. At this point the salt level
should be increased by adding 25kg of salt per 25,000 litres of pool water. The addition of salt should not affect
the EcoSalt
™ as it is protected against overloads. If no action is taken and the salt level continues to fall damage to
the system may result.
There are other factors that can cause the Unit not to work correctly:
1. Heavy Rain - can cause very diluted pool water to pass over the Cell due to surface skimming.
2. Scaled Cell - a scaled Cell will not draw as much electrical current as a clean Cell when first started.
3. Cold Water - cold pool water reduces the ability of a Cell to carry electrical current.
4. Failing Cell - as the Cell ages there will come a time when the electrical current draw will drop. This can be
compensated for with the addition of extra salt. A Cell is considered failed when it draws less than 80 % of maximum
current. Please note that the Low Salinity Indicator is not like T.D.S. meters, which are temperature compensated
Scientific Instruments. The accuracy will be within 500ppm salinity and they are water temperature dependent, just as
the Cell is.