ECO-MATIC MEMS36USA, Installation & Operation Instructions

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MAX
Low Salinity Indicator and Cut-Out
Your ECO-matic is fitted with a number of protective feat ures including the Low Salinity Indicator ,
and on some models, a Cut-Out feature.
As the salt level in the pool decreases, the w ear on the ‘Cell’ increas es. Although salt is not
consumed in the ECO-matic process, it is lost through splashing, back-washing and on bathers as
they leave the pool. T he salt lev el 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, LED 2 will turn RED. At this point the salt level
should be tested with a Saltline U SA approved digital conductivit y tester and salt adde d to reach a
minimum of 4,000PPM. If no action is taken and the salt level continues to fall, the
Low Salinity Cut-
Out will activate and LED 1 will also turn RED. It is advisable to test the salt level is in f act low, prior
to adding salt, as LEDs 1 and 2 can activate for reasons other than ‘low salt’.
When the Cut-Out feature activates, the E CO-matic will no lon ger produce s anitizer, but will switch
itself ON a number of times each hour and assess whether the problem(s) (low salt for example) have
been corrected. If the problem still exists, the unit will switch OFF once again.
Other factors which can activate the Cut-Out feature:
1. Heavy Rain - can cause very dilute pool water to pass over the ‘Cell’ due to surface skimming. The
Unit will turn back ON after the rain has been mi xed into the water unless the salt lev el has been
reduced by dilution/overflow.
2. Scaled ‘Cell’ - a scaled ‘Ce ll’ will not dra w as much electrical current as a clean ‘Cell’ whe n first
started. This will cause the Cut-Out to operate. This is very benefic ial as a scaled ‘Cell’ can caus e
an overload if it is operated for a few hours. Heavy scale build- up also increases the wear on the
‘Cell’.
3. Cold Water - cold pool water reduces the ability of a ‘Cell’ to carry electrical current. (Refer Winter
Mode below).
4. Failing ‘Cell’ - as ‘Cell’ ages there will come a time when the electrical current draw will drop. This
can be compensated for with the addi tion of extra salt. A ‘Cell’ is considered failed when it draws
less than 80% of maximum current. To keep a failed ‘Cell’ in oper ation,
Winter Mode can be used
along with extra salt. There will come a time when the ‘Cell’ will not re spond to either extra salt or
Winter Mode . It will then need to be replaced.
Winter Mode (Outdoor Pool/Spa Only)
When the ‘Ce ll’ draws electr ical current from the Po wer Supply, the amount of current drawn is
dependent upon a number of factors. Two of these factors are
Salinity and Water Temperature .
The Low Salinity Indicator and/or Cut-Out on your ECO-matic are designed to operate at swimming
season water temperatures. When t he pool begins to cool in the off season the temperature drop
causes the ‘Cell’ to behave differ ently – it will draw less electric al current. This can cause the Low
Salinity Indicator and/or Cut-Out to assume that the salinity has fallen even if the salinity has
remained relatively constant.