To get email notification when someone adds to a thread you're following, click on the star in the thread's header and it will turn yellow; click again to turn it off. To edit your profile, click on the gear.
The Wall has a powerful search engine that will go all the way back to 2002. Use "quotation marks" around multiple-word searches. RIGHT-CLICK on the results and choose Open Link In New Window so you'll be able to get back to your results. Happy searching!
In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.

L8124 to l8148 wiring question

TommyDTommyD Posts: 15Member
I am in the process of switching boiler controllers on my Utica furnace. I am switching from a n L8124 to an L8148A and all of the terminals line up except one.... On the current L8124 there is a red wire from my amtrol boiler mate that is going to a terminal labeled ZR. Does anyone have a suggestion on what thermal this should go to on the L8148 as there is no Z terminals at all???



Thanks in advance for the advice.



TomD
· ·

Comments

  • billtwocasebilltwocase Posts: 2,025Member ✭✭✭
    control

    Did you replace this to mainly make the boiler cold start? That could have been done by removing a wire without changing the control. You need to attach the ZR to the temp block terminal. There should be 2 screw terminals. One has a blue wire, the other a red wire. It should be the red wire that you want to piggy back it with. I may be 50% right, but been a long time. That is a lousy control you are upgrading to. If you do this, make sure the HI limit shuts the burner off. If it is not right terminal, it will go into steam
    · ·
This discussion has been closed.

Welcome

It looks like you're new here. If you want to get involved, click one of these buttons!