Hayward Solar Controller

FLPoolDIY

Well-known member
Aug 29, 2016
102
Land O Lakes, FL
#1
I'm looking for suggestions on which Hayward solar controller to go with. I have the Hayward ecostar pump so, I decided that going with the Hayward solar controller would be the best option to keep the equipment the same.
 

Protlost

Well-known member
Mar 12, 2017
74
Orange County, CA
#2
Good question that I'm curious about as well. I have a non functional FAFCO controller right now. It looks like the Hayward GLC-2P-A kit is pretty complete.




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pooldv

Mod Squad
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Aug 10, 2012
24,993
DFW, TX
#3
I am not that familiar with Hayward equipment but according to this the GL-235 solar controller can change the speed on the ecostar pump.
Comparing Variable Speed Pool Pumps | Solar Southwest Florida

Which is what you want. I run my Intelliflo VS pump at 1100 rpm on solar standby and it only uses 150 watts. When solar heat is available my Solartouch solar controller opens the solar valve and ramps the pump speed up to 1950 rpm. When solar heat is not available it closes the valve and the pump goes back to 1100 rpm.
 

FLPoolDIY

Well-known member
Aug 29, 2016
102
Land O Lakes, FL
#4
Pooldv thanks for the link. That's what I was looking for. I don't need anything fancy, just automation for solar to maximize swim season in Central FL.

Is there anyone who has been using the GL-235 on this site that can provide some feedback from their experience?
 

pooldv

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Aug 10, 2012
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DFW, TX
#5
Isaac-1 has been using one for a long time and plenty of other folks. It is the most common Hayward solar controller.
 

Brentr

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LifeTime Supporter
Oct 18, 2009
2,559
Jacksonville, FL
#7
I will be following this as I too would like to replace my one speed pump with a variable speed pump. I too have the GL-235 which works great however I would like to integrate a VS pump with the least cost involved. Please keep us informed.:cheers:
I'll be ordering one in the next few days. I'm sure I'll have some questions on the installation and know just the place to ask them.... TFP
 

pooldv

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Aug 10, 2012
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DFW, TX
#9
Here is how my Pentair Solartouch works with my Intellifo VS pump. I expect that the GL-235 will be similar so hopefully this will help with figuring it out.

I set the pump internal timer to turn on at 8am at 1100 rpm (speed 1) for solar standby. It only uses 150 watts at 1100 rpm. The Solartouch monitors water temp and solar panel temp and when solar heat is available it will open the solar valve and changes the pump to speed 2 (1950 rpm). After solar heat is no longer available it closes the valve and the pump returns to speed 1. Then the pump's timer turns itself off at 10p.

I have learned that running the pump overnight will cool the pool a degree or two more than it would if the pump is off overnight.

Then if your pool gets too hot during summer you can run solar cooling at night to cool the pool. Then I run 10p to 8a for cooling.
 

Brentr

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Oct 18, 2009
2,559
Jacksonville, FL
#10
FLpoolDIY I contacted Jason Szumlanski, Principal Solar Designer, Florida Solar Design Group. He is the person in the link that PoolDV sent in the earlier part of this thread. This is what he suggested
"Brent,

I would go with the Pentair Superflo VS or the Hayward Ecostar if your budget allows. If you get the Superflo you will need the communications cable sold separately.

​This would qualify as a moderate to advanced control wiring job, so hire someone who knows what they are doing unless you are confident you can do it yourself.​ The communication cable is Pentair Digital Input Kit 353129Z. "