Chore-Time Chore-Tronics 3 Control - Page 44

Control Setup Chore-Tronics® 3 Control
44
MT2398C
On a very hot day it would be possible for the water to be running continuously and the temperature to be
in the "Cool Pad Range". A more moderate day might result in the water running a very small amount of
time in order to keep the temperature within the "Cool Pad Range". Similarly, on a low humidity day the
amount of water required to keep the temperature within the "Cool Pad Range" would be less than for a
high humidity day. The Control will adjust the water as required to keep the temperature in the "Cool Pad
Range". If it is desired to not allow the water to run continuously, then the Max water allowed (Item 4,
Below) value should be changed so that it is less than the repetition rate value.
1. Select the Control Tab.
2. Measure the number of seconds it takes for water to start
coming out of the holes in the pad system's top distribution
pipe after turning on the COOL PAD manual toggle switch.
This should be entered as the "Water pre-fill time" (Item 2,
right) and is likely to be different for the different system
manufacturers. This amount of time is added to the water
run time each repetition because the top distribution pipe
drains out during the off time of the on-off cycle.
Important!! The parameters that determine exactly how the
COOL PAD function reacts are programmed in two separate
screens, (Setup/Outdputs/Ventilation/Coolpad and Ventilation Set-
ting/CoolPad). Chore-Time strongly recommends that the factory default settings be used, un-
less poor control of temperature during pad operation is noticed. Chore-Time also recommends
that CTB service personnel is contacted before changing the settings.
2
3. Measure the number of seconds it takes for water to start
dripping out the bottom of a dry pad after the COOL PAD
manual toggle switch is turned to the on position. This amount of time should be entered as the "Time
to wet dry pad" (Item 3, above). This will be less than the time to make the pad completely soaked.
When the actual water on time reaches this "Time to wet dry pad" value, the next step is to run the
water continuously, assuming that the temperature is above the Cool Pad Range at the next temperature
3
4
4. If water running on the pad continuously is not
desired, then the "Max water allowed" value
(Item 4, right) should be changed so that it is less
than the repetition rate time. Once the temperature
decreases back below the Cool Pad Range, the ac-
tual water on time will return to the "Time to wet
dry pad" value again. From there the water on time
changes in the normal way, with 5 second changes
every 20 minutes, depending on the temperature
check points.
5
5. The "Actual water on time" is for information
only. Showing the value makes it possible to cre-
ate a graph of it's variations if you have the PC
connection (C-Central). The "Flush cool pad", (Item 5, previous page) is a feature that allows you
to run the water continuously at a time of day each day for the duration you specify. This will guar-
antee that at least once a day the pad will be flushed to keep it as clean as possible and help lengthen
the pad life. Leaving dashes for the settings disables this feature. Flushing the pad in the night will
have the advantage of causing very little unwanted temperature drop.