Playing around with a Hayward 2 speed pump.

Jump to latest Follow Reply
This is what I had in mind:

1629918769238.png

The red and blue feeding your current pump are connected to the 220v input. Doesn't matter which goes to which.
 
  • Like
Reactions: willygee
willygee said:
Thank you JW and Mas985...but initially would like to start with toggle. I use the intermatic as a manual on and off switch to my current tristar.
Click to expand...
Most if not all of your runtime will likely be on low speed anyway. I rarely run on higher speeds.
 

Enjoying this content?

Support TFP with a donation.

Give Support
  • Like
Reactions: willygee
 
We all know water starvation can kill pumps and motors. I just pulled a perfect running 13 year old Hayward 1.5hp 240vac single speed motor(my backup motor now) and installed a gifted 1.5hp Hayward 2 speed. Playing around with a Hayward 2 speed pump.
Install went very well. Toggle on end of motor switches Hi/Lo. Run dry, water starvation is what kills pumps so i would like to go preemptive.
Hi psi right now is 15psi( 10 psi fresh clean cartridge filter) and Lo is 2psi. I would like the system to shut down w/ 1psi and it appears this spa heater switch might accomplish this. It also has dual contacts that i'm thinking could interrupt both legs going to the pump. I could tee off my cartridge pressure gauge for install. I can see a bypass reset circuit to get things running again. Any automated timing through my Intermatic could be morphed in later.
Another thought as i don't know how a spa heater dry run switch works (resistive?) would it work for an inductive motor load?

PS..flow switch set up using a HVAC DPST with push to test also on my doodle pad.
 

Attachments

  • hERGADPDT.PNG
    hERGADPDT.PNG
    66.8 KB · Views: 5
How does the pump start with no pressure to close the switch?

I don’t think that pressure switch contacts will last long with the motor amperage. You need to use an HVAC relay controlled contactor.
 
You must log in or register to reply here.
Thread Status
Hello , This thread has been inactive for over 60 days. New postings here are unlikely to be seen or responded to by other members. For better visibility, consider Starting A New Thread.
Top Bottom
Back
Jump to latest Follow Reply