New heater install confusion

billy20o9

New member
Dec 10, 2022
3
Pasadena, TX
So I recently installed a Pentair 400kBTU heater on an existing pool I had installed roughly two years ago.

During the build we decided to go with just a pool , no spa or heater. Fast forward we wanted to get more use out of it so decided to have this heater installed but what’s not making sense is the length of time it’s taking to heat up.

Pool is roughly 16,300Gallons, in the shape of a rectangle with a small tanning ledge on one side. I realize I’m trying to heat the entire pool but even then it’s going on 2 1/2 days and it’s maintain 78-80 degrees. The SP is plugged into the Pentair Easy touch panel at 104 but awhile ago after looking around I noticed the heater was off for atleast the 30 mins I was outside. So I looked at the local panel on the heater and the SP was 79, which leads me to my question.

I was told to adjust the temp on the panel, which is what I was doing but if I’m calling for a significant increase (104) and the heater isn’t on is that strange? I also increased the temp on the heater panel temporarily and it kicked right on. So could something be setup wrong and it’s only wanting to maintain the temp on the actual heater and not through the panel like I was original told?

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Welcome to TFP.

Temperature at the heater needs to be set to 104F and left there when it is controlled by the EasyTouch. Adjust the desired water temperature on the EasyTouch and not the heater.
 
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Low gas pressure will cause the heater to run lean. It will not generate the rated BTUs with less gas.

Did you have your gas meter sized appropriately and are you sure the regulator is correct?
 
Come to find out the temp SP on the heater was 78, when I was increasing the panel temp it wasn’t doing anything above 78! Cranked the temp up on the Heater itself to 104 then within 4-5 hours it wasn’t doing anything toasty!

Thanks for the help
 
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While we are talking…

You lack a required check valve between the heater output and your tablet chlorinator to prevent acidic water from backflowing into the copper heat exchanger and damaging it when the pump is off.

Even with the check valve the acid will eventually cause the check valve to leak and get into the heater, damaging it.

We recommend tab chlorinator be replace with a SWG. We also recommend a Heater Bypass - Further Reading be installed.

Also, check if the gas sediment trap is properly installed.

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