Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Condensate pump activation.

Options
kcopp
kcopp Member Posts: 4,432
I have a steam system where am replacing the whole boiler.
The new boiler is a 24v gas system. Old boiler was a oil set up.
There is a condensate pump that is activated by the lwco.
Old system was 120V new one is 24V... can I use a Taco sr501 relay to activate the condensate pump?
Wiring is a bit different than just using a VXT feeder.
thanks.

Comments

  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,529
    Options
    No reason not to. Just make sure the relay you use is rated for the horsepower of the condensate pump motor preferably larger.

    You technically making a boiler feed pump, condensate pumps work off a float switch, You might want to wire the contacts of your new relay and the condensate pump float switch (if you have one) in series using the float switch as a low water cutoff for the condensate pump. Don't want to run it dry
    kcopp
  • kcopp
    kcopp Member Posts: 4,432
    Options
    So what wires from the TT am I hooking up to? A (alarm) and 2 ( neutral) ?
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,529
    Options
    SR501-4

    TT on the relay to the NO contacts on the lwco to start the feeder

    120 volt power to H & N on the relay

    jumper from H on the relay to 3 on the relay

    Neutral (same wire as N on the realy) to the condensate pump motor

    Hot wire from 4 on the relay to the condensate pump motor
    kcopp