Hayward OmniLogic Doesn't Match Test Results

[ajw22]

My point was that it can become a problem in some cases, so the poster needs to be aware of when it can be a problem and what options are available for making the system work.

For pools over about 86 degrees, the high amp shutdown can become a problem when the heater turns on even if the salinity is in the "Normal" recommended range.

Note that in DFW, the posters location, pool water can get hot enough without a heater to cause the high amp shutdown.

This is a general problem with the Hayward SWG system and as you pointed out there are adjustments that can be made for when the problem is encountered.

 

[JamesW]

High Amp Shutdown with High Water Temperatures
The Aquarite has a design flaw where the high amp shutdown will happen at normal salinity when the water temperature is above about 90 degrees.[44]

AquaRite, ProLogic, and AquaPlus all shut down at 8.0 amps. Some software revisions shut down at 10 amps, but we are not sure which revisions use 10 vs. 8. Most software revisions shut down at 8.0 amps.[45]

At "normal" salinity levels of 3,200 ppm, the amperage begins to approach or exceed 8.0 amps at about 92 degrees.

This can be a problem for warmer pools, especially when the cell is downstream from a gas heater where the temperature exiting the heater can be up to 16.8 degrees Fahrenheit higher than the inlet temperature.

To stay below the 8.0 amp limit, you have to maintain the salinity below about 2,800 ppm. The system will work down to 2,400 ppm, but it will give a constant "Low Salinity" warning at 2,700 ppm. Trying to keep the salinity exactly at 2,800 to avoid getting a low salinity warning or a high amp error is difficult.

To avoid the low salinity warning and the high amp shutdown, you can change a T-15 the cell type to T-9. This will make the salinity read higher than actual so that you can operate at an actual salinity of 2,400 to 2,800 ppm without the low salinity warning all the time.

You would try to keep the amperage between about 6 to 7 amps maximum.

You would make sure that the amperage was always below 8.0, even when the heater was on.

Hayward Aquarite SWG - Further Reading

www.troublefreepool.com

https://www.troublefreepool.com/wik...igh_Amp_Shutdown_with_High_Water_Temperatures

 

[JamesW]

Control panel reading not matching manual reading.

I just installed a new T-Cell15 yesterday. The old one failed testing at the pool store. It's the enhanced cell, the 940, but uses the same setup as the T-Cell15. My reading with a Taylor test kit was 3000PPM. The pool store showed 2800PPM. So we're close. But the control panel shows 2400PPM and...

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