How to power/interlock Circupool Universal40 from IntelliFlo VSF?

[AtlasAirborne]

I picked up a Circupool SWG, without realising that the built-in flow switch was insufficient to safely control the SWG.

What's the typical approach here for someone who doesn't have an automation controller?

Is it possible to tap a signal off the pump? Is a timer sufficient? Any recommended (accurate/reliable) timers?

 

[mknauss]

Take a look at how this member handled it.

Low Budget DIY Automation

When we built the pool, I decided against full automation for a variety of reasons including cost, the proprietary nature of available devices, and the fear an expensive system would quickly become obsolete and unsupported. I've seen a few forums members using Raspberry PI and Arduino...

www.troublefreepool.com

 

[AtlasAirborne]

Thanks mknauss.

Before I go that route though, I'm seeing some suggestion that some SWGs may have error-state detection if the unit is activated with no flow (ie a second interlock).

Additionally, the Circupool installation manual advises constant power (with SWG control driven purely by the flow switch) when installed with VSF pumps. Presumably this would not be recommended if a flow switch failure were sufficient to destroy the unit?

I might have to send them an email to check...

 

[mknauss]

Your choice. See Explosion near the SWG

 

[AtlasAirborne]

Per Circupool, a second interlock is provided by the salinity detection - salinity will fall below the lower bound and halt generation before a dangerous condition occurs, should the flow switch fail closed under zero-flow.