Air Compressor On/Off switch Question

[charger0926]

I have read several threads on wiring a on/off toggle type switch but a question remains.

Here are a few pics of my set up and I would like someone to show me which set of wires I need to splice into to install a toggle switch to turn on/off the compressor at the pressure switch.

I believe I am correct on what I think but need some verification

Thanks for any help

 

[pattenp]

There is only one wire at the pressure switch being switched. What set are you referring to? I take it that you want to add a toggle switch inline with the pressure switch?

 

[joe_padavano]

I just assembled a Frankenpressor with exactly the same motor and a very similar mag starter. Just run the on/off switch in series with one of the pressure switch wires. Either one, doesn't matter. I will be mounting the switch next to the light switch for my shop.

 

[OccupantRJ]

On your 4th picture of the pressure switch, simply cut one of those red wires and put a switch in the gap you create. This will override the pressure switch.

 

[matt_i]

I have read several threads on wiring a on/off toggle type switch but a question remains.

Here are a few pics of my set up and I would like someone to show me which set of wires I need to splice into to install a toggle switch to turn on/off the compressor at the pressure switch.

I believe I am correct on what I think but need some verification]

In simplicity you would just need to lift one wire off the pressure switch. Connect that wire to one pole of the toggle. Connect the other pole of the toggle back to the pressure switch terminal that just became vacant.

I have a diagram somewhere but feeling lazy.

Pressure Switch -- Toggle -- Overload dry contact -- relay coil are all in a series arrangement in any order. Hot and neutral must be connected at the two far ends, if 120vac control voltage. Or it would be 240L1 and 240L2 if using 240vac control voltage.