Question on Jandy TrueClear

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dimago

Member
Mar 3, 2024
14
FL
Pool Size
7500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Truclear / Ei
How do you guys have your Salt system set up? I have that yellow dial with pins to turn on and off the Salt system, but since we installed the iAquaLink system, I don't use the pins anymore and the TrueClear when the pump is running it is chlorinating and when the pump is off it shows Standby.

The yellow dial is still running, so I would like to understand how should be this set up.

- Yellow dial not running at all anymore?
- Salt system to become On when the pump is on and off (display showing nothing) when the pump is off?

Because like I said as today the Salt system shows Standby when pump is off and I was wondering if the system should be connected to the pump or somewhere else to be turned off, maybe my tech guy installed this not using the best approach?

Any advise?

Thanks!
 
By "yellow dial" do you mean a timer like an intramatic timer? Can you show pics of the entire system? If you switched over to Aqualink, you no longer need the timer.
 
PoolGate said:
By "yellow dial" do you mean a timer like an intramatic timer? Can you show pics of the entire system? If you switched over to Aqualink, you no longer need the timer.
Click to expand...
yes the timer to control the Salt to be On/Off. Attaching some pics @PoolGate

So what happened my Salt system stopped working 2 days after we installed the new iAquaLink system. This is the second time this TrueClear (first one was almost a year ago) fails and this time I got a new one. The warranty pool guy told me that the TrueClear should be turned off when the pump is not working, and that I would need to rewire to the relay (i'm not that expert).

The way that the iAquaLink guy installed, he kept the TrueClear to that yellow timer (see pics), but without the pin to On/Off, so the TrueClear is always on with power (my understanding). So, when the pump is running, it shows Chlorinating (see pics), and when the pump is off, it shows Standby 0% (see pics). If that turn that orange lever on the dial timer to the left it shuts down the TrueClear system.

I guess when the pump is off, it should somehow turn that TrueClear completely off, right? Like the pool warranty guy said?!

Note that yellow timer was only to control the TrueClear, that had never controlled the pump.

Thanks!


breaker.pngchlorinating.jpgdial-timer.jpgiaqua.jpgstandby.jpg
 
Last edited:
For safety purposes the SWG is typically connect with the pump circuit so that without the pump it cannot get power. It looks like you have a variable speed pump, however. Do you know if that pump has relay outputs for a SWG? Can you post the pump model? If so, that is where your SWG should be connected to. The SWG uses its own internal flow switch to determine if it can run. It isn't the end of the world if your pump and SWG aren't running at the same time, however. To be clear, that isn't recommended. The issue is that the SWG creates hydrogen gas as a byproduct of chlorine production. Without flow, the hydrogen gas can accumulate in your pool plumbing and there are cases where a spark has ignited it, resulting in a plumbing explosion. In order for that to happen, your pump would need to be off AND the SWGs flow switch has failed AND a spark is introduced. An unlikely series of events, but possible.

That SWG can increase the chlorine level in your pool by 15 per day if the pump is running 24x7 and the SWG is set at 100%. At 75%, the pump can increase chlorine by 11. Again, if the pump is running 24x7. How often do you run your pump? Many people run the pump 24x7 at a low RPM like 1500 and create a little chlorine all day long. If you did that (pump running 24x7), you would need to run the SWG at @ 25% to maintain sanitary conditions in your pool. That assumes you are using @ 3-4 parts chlorine per day. You do need to figure out how much chlorine you need. This is done by daily testing of chlorine until you have a handle on your pool usage. For instance, I run my SWG @ 53% with the pump running 24x7. That maintains a FC of around 8 for me. If it gets too high, I just adjust (or turn off) the SWG until it levels out. You'll get a feel for it.

TruClear Production Amount PER DAY with pump running 24 hour and set to 100% - .93lbs or 14.88 ounces of chlorine gas.
14.88 ounces of chlorine gas in 7500 gallons of water increases the free chlorine by 15. This is the equivalent of adding 1.3 gallons of 8.25% bleach or 1.1 gallons of 10% bleach to your pool each day.

As for the timer, not sure what use it has at the moment. Your installer may have just removed all the circuits from it and it is not doing anything. Turn it off and see if anything goes off. If not, leave it off. If so, leave it on. You do not need the timer.
 
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PoolGate said:
For safety purposes the SWG is typically connect with the pump circuit so that without the pump it cannot get power. It looks like you have a variable speed pump, however. Do you know if that pump has relay outputs for a SWG? Can you post the pump model? If so, that is where your SWG should be connected to. The SWG uses its own internal flow switch to determine if it can run. It isn't the end of the world if your pump and SWG aren't running at the same time, however. To be clear, that isn't recommended. The issue is that the SWG creates hydrogen gas as a byproduct of chlorine production. Without flow, the hydrogen gas can accumulate in your pool plumbing and there are cases where a spark has ignited it, resulting in a plumbing explosion. In order for that to happen, your pump would need to be off AND the SWGs flow switch has failed AND a spark is introduced. An unlikely series of events, but possible.

That SWG can increase the chlorine level in your pool by 15 per day if the pump is running 24x7 and the SWG is set at 100%. At 75%, the pump can increase chlorine by 11. Again, if the pump is running 24x7. How often do you run your pump? Many people run the pump 24x7 at a low RPM like 1500 and create a little chlorine all day long. If you did that (pump running 24x7), you would need to run the SWG at @ 25% to maintain sanitary conditions in your pool. That assumes you are using @ 3-4 parts chlorine per day. You do need to figure out how much chlorine you need. This is done by daily testing of chlorine until you have a handle on your pool usage. For instance, I run my SWG @ 53% with the pump running 24x7. That maintains a FC of around 8 for me. If it gets too high, I just adjust (or turn off) the SWG until it levels out. You'll get a feel for it.

TruClear Production Amount PER DAY with pump running 24 hour and set to 100% - .93lbs or 14.88 ounces of chlorine gas.
14.88 ounces of chlorine gas in 7500 gallons of water increases the free chlorine by 15. This is the equivalent of adding 1.3 gallons of 8.25% bleach or 1.1 gallons of 10% bleach to your pool each day.

As for the timer, not sure what use it has at the moment. Your installer may have just removed all the circuits from it and it is not doing anything. Turn it off and see if anything goes off. If not, leave it off. If so, leave it on. You do not need the timer.
Click to expand...

Yes, it is a VSP. This is the model VSFHP165AUT (Jandy VS FLOPRO).
That time/yellow the Salt TrueClear is connected looks like. If I turn that orange lever to off it shuts down the power of that. Since I've removed the pins, the timer is not doing anything, but the TrueClear has always power and when the pump is off it shows Standby.

So, the SWG if I'm understanding correctly, should be connected with the pump, so when the pump is off, the SWG should not display anything (like Standby), it should be really off, right?

To connect the SWG with the pump correctly, is this something I could do by myself? I'm sending couple more pics.

Thanks!
 

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Is there a four wire RS-485 cable between your Truclear and your Jandy VS pump that enables Flow Monitoring? With this connection no timer for the TruClear is required.

Jandy TruClear SWG - Further Reading

www.troublefreepool.com www.troublefreepool.com


Jandy_Truclear_to_FloPro_Pump_RS-485_Connect.png

The Jandy TruClear Installation Manual says:

The power pack must be interlocked/interconnected with the pool pump motor power source to ensure that the chlorinator only operates when the pool pump is operating. The flow sensor feature of the Jandy TruClear is intended to be used as a backup only and should not be used as the sole source of flow detection.

The Jandy TruClear chlorination system with Firmware Revision F or later, can monitor the state of the Jandy Variable Speed Pump so that the TruClear does not operate if the Jandy Variable Speed Pump is not running.

A four wire RS-485 cable is connected between the TruClear Power Pack and the Jandy VS Pump to ensure that the chlorinator only operates when the pool pump is running. With this connection no timer for the TruClear is required.

Once connection has been made, the TruClear User Interface (UI) should display “Standby #”.
 
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ajw22 said:
Is there a four wire RS-485 cable between your Truclear and your Jandy VS pump that enables Flow Monitoring? With this connection no timer for the TruClear is required.

Jandy TruClear SWG - Further Reading

www.troublefreepool.com www.troublefreepool.com


Jandy_Truclear_to_FloPro_Pump_RS-485_Connect.png

The Jandy TruClear Installation Manual says:

The power pack must be interlocked/interconnected with the pool pump motor power source to ensure that the chlorinator only operates when the pool pump is operating. The flow sensor feature of the Jandy TruClear is intended to be used as a backup only and should not be used as the sole source of flow detection.

The Jandy TruClear chlorination system with Firmware Revision F or later, can monitor the state of the Jandy Variable Speed Pump so that the TruClear does not operate if the Jandy Variable Speed Pump is not running.

A four wire RS-485 cable is connected between the TruClear Power Pack and the Jandy VS Pump to ensure that the chlorinator only operates when the pool pump is running. With this connection no timer for the TruClear is required.

Once connection has been made, the TruClear User Interface (UI) should display “Standby #”.
Click to expand...

My TrueClear UI/Display, when the pump is not working, it shows "Standby" - Please see some of the pics above.

This is exactly my concern = When the pump is OFF, shall I see that "Standby" (is this ok?) or shall the TrueClear be No Display at all?
 
dimago said:
My TrueClear UI/Display, when the pump is not working, it shows "Standby" - Please see some of the pics above.

This is exactly my concern = When the pump is OFF, shall I see that "Standby" (is this ok?) or shall the TrueClear be No Display at all?
Click to expand...

If you have the four wire RS-485 cable between your Truclear and your Jandy VS pump that enables Flow Monitoring then Standby is the correct display.

See the TruClear manual.
 
ajw22 said:
If you have the four wire RS-485 cable between your Truclear and your Jandy VS pump that enables Flow Monitoring then Standby is the correct display.

See the TruClear manual.
Click to expand...

I see that cable coming from the TrueClear and connected to the AquaLink panel.

So there is no damage/harm to the TrueClear device to stay on "Standby" while pump is not running. So my case here it will be on Standby from 5:00 PM to 10 AM.
 

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dimago said:
So there is no damage/harm to the TrueClear device to stay on "Standby" while pump is not running. So my case here it will be on Standby from 5:00 PM to 10 AM.
Click to expand...

No. The pump and Truclear are communicating to keep things safe.
 
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JamesW said:
Normally, the SWG is powered from the Filter Pump Relay Load Terminals.
Click to expand...

I understood from another pool guy came by, that it should be connected to the relay. If you see my picture from some posts above where I have the AquaLink panel opened, I guess it is where the power should be connected...
 
ajw22 said:
No. The pump and Truclear are communicating to keep things safe.
Click to expand...
Ok, yeah that's my understanding they should communicate and smart enough to know things, but the way that other pool guy came by he said it should turn on and off with the pump.
 
dimago said:
Ok, yeah that's my understanding they should communicate and smart enough to know things, but the way that other pool guy came by he said it should turn on and off with the pump.
Click to expand...

Everyone advising you of that does not read the Jandy TruClear Installation manual.
 
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PoolGate said:
Sounds like it is running 7 hours a day at 75% which is an addition of 3 parts FC. How are you testing your water?

Pool Care Basics
Click to expand...
It is now 75% because I was almost a week without the system. I'm testing using regular strips, but bought that Taylor K-2006C. I tested today with the strips (Taylor comes tomorrow) and only thing low was muriatic acid, so I added a little.
 
dimago said:
Ok, yeah that's my understanding they should communicate and smart enough to know things, but the way that other pool guy came by he said it should turn on and off with the pump.
Click to expand...

This is archaic thinking back in the days of single speed pumps and the only way you turned them off was to yank their power.
 
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