Davey MCxxC CHLOROMATIC Salt Water Pool System - Manual (Page 8)

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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. (Refer Winter Mode below).
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. To keep a failed Cell in operation Winter Mode can be used along with extra salt. There will come a time when
the Cell will not respond to either extra salt or Winter Mode. It will then need to be replaced (see pg11 for replacement
cell codes). 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.
WINTER MODE:
When the Cell draws electrical current from the Power 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 Indicators on your ChloroMatic
® are designed to operate at swimming season water
temperatures. When the pool begins to cool in the off-season the temperature drop causes the Cell to behave
differently - it will draw less electrical current. This can cause the Low Salinity Indicator to assume that the salinity
has fallen even if the salinity has remained relatively constant.
When the temperature of the pool water drops, the Winter Mode Switch should be placed in the ON position.
The Winter Mode Indicator will then be ON. This has two effects:
1. It alters the setting of the Low Salinity Indicator.
2. It reduces the Cell Output by approximately 15%
The Unit will now respond to a cold pool environment. Winter Mode should not be used in the swimming
season as it reduces the Cell Output, leading to less sanitiser, and it alters the setting of the Low Salinity
Indicator, which could lead to premature Cell failure.
AUTOMATIC TIME CLOCK OPERATION:
Your ChloroMatic salt water chlorinator is fitted with one of two types of automatic timer
(1) Digital
(2) Analogue
(1) Models with Digital Timer:
The digital timer includes a backlit Liquid Crystal Display which displays time of day in 12-Hour format with AM /
PM indication and a selector switch position indicator. The digital timer has up and down buttons for incremental
settings.
Timer Setting and Functions:
To set your clock and various functions please refer to the table of instructions following.
NOTE:
When you first turn on the power to the chlorinator, it will take approximately 5 seconds for the LCD to appear on
the screen.
AM
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