Intellitouch/screenlogic insufficient delay

[ewsb]

I have added the automated bypass to my master temp and intellitouch controlled Pentair system.

While everything works well when heat is called for: ie the bypass valve activates and starts allowing water to flow to the heater before the heater starts, when the temp is reached or the intellitouch turns off the heater , the heater starts its cooldown and then the intellitouch removes power from the heater before the heater is able to reset the bypass valve.

Is there any way to increase the delay time for the heater to cooldown before power is disconnected?

 

[ajw22]

Where is the bypass actuator connected to? MasterTemp board or IntelliTouch PCB?

Pentair says MasterTemp heaters do not need a cooldown.

No, you cannot change when the IntelliTouch opens the fireman’s switch and shuts down the MasterTemp.

 

[ewsb]

Mastertemp board.
The initellitouch manual says it runs for 5 mins after turning off the demand for heat but that seems to only relate to the pump and not the power to the heater. Given this is all pentair euqipment installed as per pentair bypass instructions is seems like they forgot something in the design.

I imagine I could connect the bypass actuator somehow to the intellitouch but not sure how. It would have to activate as soon as heat is requested and deactivate 5 minutes after heat is required?

 

[ajw22]

Mastertemp board.

That does not work using the Firemans Switch as you discovered.

It will probably never work using the Firemans switch and someday Pentair will get the board firmware correct for it to work with RS-485 heater control.

Given this is all pentair euqipment installed as per pentair bypass instructions is seems like they forgot something in the design.

I don't think it was ever designed to work with the Fireman's switch and the IntelliTouch. To Pentair the IntelliTouch is now an obsolete system.

The BYP-VLV on the MasterTemp was designed to work with the IntelliCenter and RS-485 control. And even there it still does not work correctly.

I imagine I could connect the bypass actuator somehow to the intellitouch but not sure how. It would have to activate as soon as heat is requested and deactivate 5 minutes after heat is required?

If you have a valve actuator jack available on your system you can attach it there and associate it with your heater circuit.

The valve will move as soon as the heater shuts off and if you setup the bypass valve the way Penatir instructs water will continue to flow through the heater when it is bypassed for any cool down.

 

[ewsb]

Amazing as they have such a large base of Intellitouch systems out there that they would just leave the folks out there.

I do have a actuator jack available. Is there a way to make the valve actuator only work a minute or so after the heat shuts off? or given I understand that the mastertemp does not need a cool down, I can just let it shut off immediately? I will reread the manual to see how to set up a valve on the intellitouch. I have not done it for 6 or 7 years.

Thanks for the help.

 

[ajw22]

Is there a way to make the valve actuator only work a minute or so after the heat shuts off?

No.

or given I understand that the mastertemp does not need a cool down, I can just let it shut off immediately?

Correct.

From the IntelliCenter Users Guide which I take as the most recent Pentair guidance...



And if you set the bypass valve following these Pentair instructions Pentair MasterTemp Heaters - Further Reading you will have water flow into the heater for cool down after the heater is bypassed anyway.

I will reread the manual to see how to set up a valve on the intellitouch. I have not done it for 6 or 7 years.

@ogdento should be able to help.

 

[ewsb]

I spent 90 minutes with a Pentair "Intellitouch" and "Screenlogic" specialist today and no resolution. You should be able to connect the valve actuator to the valve actuator (A or B) slot on the Intellitouch board and then assign the valve to Pool Heater in the Screenlogic app. We found that the Intellitouch is not sending the instruction to the valve when you do it in that mode. (We tried all the actuator slots - 2 per load center.)

To make sure the actuator is working correctly, I changed the valve assignment (in Screenlogic) to a dummy circuit I created and when that circuit is turned on the actuator correctly turns and then when turned off the actuator correctly resets.

So it appears that Intellitouch doesn't recognize the assignment to the "heater" setting and thus doesn't respond. The Pentair tech was at a loss as to why that might be or how to solve. Any ideas? @ogdento

Many thanks.

 

[ewsb]

Does anyone know if there is a built in delay (not addressable) in the actuator pin signal? The signal seemed to suddenly change poles after 30 mins but I have not been able to replicate that. So maybe just a faulty board - although as noted earlier, I can manually switch the actuator using a feature, but that means I must manually select the feature as I cannot connect the feature to activate automatically when the heater turns on. (Maybe you can but I don't know how to do that)

Regardless, other than replacing/upgrading the Intellitouch board which is probably an expensive option, I have designed a circuit that would work using the relays. However, I need a relay that works the opposite to the standard Intellitouch relays. i.e. the relays i have are normally open and I need a normally closed. My Intellitouch came with OMRON G7L-2A-BUBJ-CB-IN.. Does anyone know of a relay that does that. ie NC rather than NO.

Thanks

 

[ajw22]

Why do you need to replace anything? Just used SPA mode to heat the water. The water goes into your pool.