C Wire Rules
#1
01-04-14, 09:32 PM
C Wire Rules
I thought I would be more specific to see if this helps. Can I connect multiple wires to the C (common) terminal at the furnace. I was also wrong and it looks like I have a Common wire to the AC right now outside. Looks like I have room on the screw though to connect the thermostat to common as well. Let me know if anyone out there knows what the rule is here.
#2
01-04-14, 10:13 PM
Group Moderator
Yes.... you can put more than one wire on a screw terminal. If you run a C wire to the thermostat you will end up with at least two wires on the C terminal. That is perfectly acceptable. You probably already have two wires on the Y terminal.
