Aprilaire 60 Humidistat Wiring Question


  #1  
Old 12-01-22, 01:38 PM
J
Member
Thread Starter
Join Date: Mar 2008
Posts: 68
Received 0 Likes on 0 Posts
Aprilaire 60 Humidistat Wiring Question


I am replacing an existing Humdistat. There are two wires connected to the R and C terminals on the furnace panel that run to the old Humdistat.
Per the diagram above, I connected the wires running from the furnace to the R and C terminals on the new Humdistat. I connected the two solenoid wires to the two H terminals. I connected the two wires from the outside temp sensor to the OAT terminals. No other connections are made.

The R and G wires show 24 volts. The Humidstat powers on and call dealer for service light flashes. My multimeter shows no voltage on the two H terminals, even when humidity is set to high and I hear the click. Tried reversing the R and G wires and no joy. Also tried turning the humidity control knob to the far right to reset and still no joy. Any suggestions? Thanks!
 
  #2  
Old 12-01-22, 03:04 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Jersey
Posts: 71,614
Received 3,321 Likes on 2,983 Posts
The HH terminals are just a switch. They are not powered.
Plus you need a wire to turn the humidistat on automatically.
This is the diagram that I use for my installations.
 
  #3  
Old 12-03-22, 08:32 AM
J
Member
Thread Starter
Join Date: Mar 2008
Posts: 68
Received 0 Likes on 0 Posts
Awesome! Thanks so much!
 
 

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