Wiring a Condensate Pump


  #1  
Old 04-26-21, 07:51 AM
R
Member
Thread Starter
Join Date: May 2012
Posts: 4
Received 0 Votes on 0 Posts
Wiring a Condensate Pump

I am installing a new Little Giant condensate pump on my gas hot air furnace. The old one did not have wires. I read that I should install the wires from the condensate pump in serial to the yellow wire coming from the thermostat. When I look at the low voltage wires attached to the furnace there are 2 wires going to the Y terminal. How can I tell which one to use? TIA
 
  #2  
Old 04-26-21, 08:19 AM
A
Member
Join Date: Jun 2012
Location: USA
Posts: 1,697
Received 54 Votes on 48 Posts
More common to wire into the R so that the entire system shuts down. Wiring to Y would only shut down the outside condenser - the furnace wouldn't shut down.
 
  #3  
Old 04-26-21, 12:13 PM
R
Member
Join Date: Oct 2016
Posts: 2,141
Received 120 Votes on 114 Posts
If you have a condensing furnace you should wire it in to the 24V hot as to shut the whole system down if the condensate overflows.
 
  #4  
Old 04-26-21, 12:41 PM
Geochurchi's Avatar
Member
Join Date: Nov 2012
Location: United States
Posts: 5,049
Received 91 Votes on 86 Posts
Hi, at the furnace control board you should see an R terminal, remove the wire from that presumably a Red wire and wire nut it to one of the control wires from the pump, the other wire from the pump will connect to the R terminal.
Geo 🇺🇸
 
 

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