Small Control Panel Build

[skepace]

Light to show when the element has power and when the pumps are turned on. What might I be missing?

 

[jeffmeh]

You also want a SPDT NO contactor and a swith to operate to be able to shut off main power to the panel (or go with a P-J e-stop, but I prefer the former). Add another set to be able to turn your element off without relying on the SSR not to leak or fail on.

You want some type of GFCI, either an inline cord, spa panel, or breaker.

You may want an alarm buzzer triggered by the PID, and perhaps some type of switch to disable it.

If you are going to add a timer, you may want another switch to disable the alarm buzzer.

That about covers it, but when you have the entire list of components post it for a final review and comment.

 

[skepace]

You also want a SPDT NO contactor and a swith to operate to be able to shut off main power to the panel (or go with a P-J e-stop, but I prefer the former). Add another set to be able to turn your element off without relying on the SSR not to leak or fail on.

You want some type of GFCI, either an inline cord, spa panel, or breaker.

You may want an alarm buzzer triggered by the PID, and perhaps some type of switch to disable it.

If you are going to add a timer, you may want another switch to disable the alarm buzzer.

That about covers it, but when you have the entire list of components post it for a final review and comment.

Would a reset button work on the PID? Isn't there an alarm on the PID already?

 

[jeffmeh]

The PID may have some type of visual blinking for an alarm, but it it common to use something like this to get audio and a more striking visual. http://www.auberins.com/index.php?main_page=product_info&cPath=7_33&products_id=215

Yes, you can stop the alarm on the PID. However, it is common to use some type of switch to shut the audible alarm off while hitting the multiple buttons on the PID to stop the alarm. Kal has a on/off rotary switch. BadNews has a momentary switch that he has to hold while he resets the PID, which has the advantage that you cannot "forget" that you silenced the alarm. I have considered a normally closed, illuminated pushbutton that would only be illuminated when the alarm has been disabled, as a visual clue that it has been disabled.

 

[skepace]

Guess I need to figure out which box I am going to use and see how much space I have.