Issue hook up Nest Power Connector tp a 2006 Taco SR506 Switching Relay

[usernamenh]

I have been trying to connect a Nest power connector to this control board and I have not been able to find where to connect the "C" wire for the constant power. Does anyone have any insight?

Thank you in advance

[Patrick_Caezza]

The green terminal block just below the transformer is 24Vac and the bottom terminal can be used to create the needed C wire.

If there is a spare wire in each of the thermostat cables you can use it to supply the C wire to each thermostat.

If there is no spare wire, you will need to use the Google Nest Power Connector and wire it like this.

[usernamenh]

I do have a power connector. The C wire goes to which terminal? A or B?

Thank you

[Jayubba]

B terminal 

[Patrick_Caezza]

Like Jayubba posted. Connect to the B terminal

[usernamenh]

I went ahead and installed the Power Connector as per the directions. I still do not have the Nest powered. Could the Power Connector be bad? I attached some photos.

[usernamenh]

****UPDATE*****

I have solved the issue.

[Markjosephp]

Hello folks.

I wanted to ensure that everything was covered here.

Thanks for the help here, @Patrick_Caezza and @Jayubba.

@usernamenh, I appreciate you posting and updating us on your efforts to address your concern and find a fix. Please let us know if you have any other questions or concerns.

Thanks,

Mark

[Jake]

Hey there,

With the issue being resolved, I am going to go ahead and lock the thread in 24 hours. Let me know if you have any further questions from here, as I would be happy to review.

Best regards,

Jake