wiring diagram for a starter pump relay


  #1  
Old 04-26-21, 04:53 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
wiring diagram for a starter pump relay

sprinkling pump, 220 volt from house and into relay where do I hook up the 220 11/2 hp motor? then what wires go to controller? I have the two wires for the 24v going to relay and then black and white wires coming from transformer inside the controller, where are they wired in to relay?
 
  #2  
Old 04-26-21, 09:14 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
Typically an A/C contactor makes a good relay.

The two coils wires go to the controller. One goes to C and the other is pump or whatever yours is labeled.
If you have a specific relay..... I need the make and model or a picture of it for detailed help.
How-to-insert-pictures.
 
  #3  
Old 04-27-21, 08:48 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
PSR-22 Hunter irrigation start pump relay. Source is 220 volt. I have it hooked to left side as we look at it. The yellow wires are attached to 24v side of controller. The pump motor wires from a 220 volt 1 1/2 HP sprinkler pump are both black wires and are on the right side of the relay. Two more wires black and white come from the transformer in the controller and are currently attached to motor side of relay. I don't know if that is correct.

 
  #4  
Old 04-29-21, 09:55 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
Yes.... source/line goes on the left side and motor/load goes on the right side.
The extra two terminals or wires on the side need 24vAC to operate relay.

If your sprinkler controller has common and 24v motor control terminals..... the two relay wires will connect directly there. No transformer is required as the power will come from the controller.

If your sprinkler controller has a dedicated switch for the pump....... then you would put the 24v transformer in series with the relay and controller.

 
  #5  
Old 04-29-21, 11:29 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
so the black and white wire coming from the transformer in the controller they hook up to where?
 
  #6  
Old 04-29-21, 05:32 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
You have a sprinkler controller and you have a pump relay.
The transformer in the sprinkler panel runs the controller.
Some relay panels have an internal transformer.

Which transformer are you referring to ?
You need switched 24vAC to the relay.
 
  #7  
Old 04-30-21, 05:05 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
I have a hunter x core with internal transformer. It has black and white wires for 120vac and 2- 24vac wires.
 
  #8  
Old 04-30-21, 08:39 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
From the manual......
2. Connect a common wire to the C (Common) terminal inside the controller and connect the remaining wire from the pump start relay to the P (Pump) terminal.

The two transformer wires go to the 24vac location.
The pump relay goes to C and P terminals.


X Core owners manual (pdf)
 
  #9  
Old 05-02-21, 05:08 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
I thought that paragraph referred to the 24 v wires from the controller to the relay. Where does the controller get its AC power?
 
  #10  
Old 05-02-21, 07:54 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
If you have the "indoor" model..... you should have a separate plug in wall adapter as shown in the picture. If you have the outdoor model... there will be an internal transformer and a means to connect 120v to the controller.

The red arrow is 24v in and the blue arrow is switched 24v out for the pump.

 
  #11  
Old 05-03-21, 10:29 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
so the outdoor model i have with the internal trans former has a black and a white 14 gauge wire coming directly out of the internal transformer with separate white and red 18 gauge wires for the 24 volt connection to the yellow wires in the relay. without connecting these black and white wires to something I don't get AC power to the controller. Could the internal transformer receive the 240 volt house source power from the left side of the relay where the 240 volt source power is hooked in?
 
  #12  
Old 05-03-21, 01:15 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
You have the outdoor version of the controller. That means there is a self contained transformer. The input/primary of the transformer connects to the incoming power. The low voltage leads are supposed to connect to the 24v terminals.

I'm not sure what the confusion is here. The relay still connects to C and P on the controller.
 
  #13  
Old 05-12-21, 06:03 AM
W
Member
Thread Starter
Join Date: May 2019
Posts: 33
Received 0 Votes on 0 Posts
The feed to the transformer did confuse me because the connection from house through the controller does go to 220 volt side of the relay. The internal transformer was burned out all along, so i had no AC power on the controller. I upgraded to a new controller and rectified this whole problem. I thank everyone for they're input and my education how 220 and 120 works.
 
  #14  
Old 05-12-21, 10:37 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 62,192
Received 1,529 Votes on 1,412 Posts
Good job. Thanks for letting us know how you made out.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: