Nest thermostat installation help
#1
04-14-17, 05:15 AM
Nest thermostat installation help
Hello all
Im trying to install my thermostat and there is one wire that I am not sure where to insert it in the Nest thermostat. I contacted the company and they said I would need to hire a pro to complete the job, but I am trying to save money and get it done myself. Can someone help me and tell me what I can do with the wire?
The wire in question is the X2 wire shown in the picture
Im trying to install my thermostat and there is one wire that I am not sure where to insert it in the Nest thermostat. I contacted the company and they said I would need to hire a pro to complete the job, but I am trying to save money and get it done myself. Can someone help me and tell me what I can do with the wire?
The wire in question is the X2 wire shown in the picture
#3
04-14-17, 07:30 AM
Member
It appears you have a heat pump. Is that correct?
If that's the case I would suggest using a different thermostat, like something from Honeywell.
If that's the case I would suggest using a different thermostat, like something from Honeywell.
#4
04-14-17, 10:42 AM
Group Moderator
Welcome to the forums.
G -----> green -----> G
B -----> blue ------> C*
R -----> red -------> Rc
Y -----> yellow ----> Y1
W ----> black -----> *
X2 ---> white -----> AUX/W2
O ----> orange ----> O/B
The white and black wires were connected backwards on the old stat but since they were jumpered.... it didn't make any difference. Many times the white and black are combined
at the air handler and that may be true here.
Turn power OFF to air handler (inside unit) before doing any wiring.
This assumes you have a Trane heat pump system.
G -----> green -----> G
B -----> blue ------> C*
R -----> red -------> Rc
Y -----> yellow ----> Y1
W ----> black -----> *
X2 ---> white -----> AUX/W2
O ----> orange ----> O/B
The white and black wires were connected backwards on the old stat but since they were jumpered.... it didn't make any difference. Many times the white and black are combined
at the air handler and that may be true here.
Turn power OFF to air handler (inside unit) before doing any wiring.
This assumes you have a Trane heat pump system.
#5
04-23-17, 08:13 PM
We actually need to know what he has for his aux heat before we can make a wiring/setup recommendation. If it's not done right, a Nest can actually cause costs to RISE with a heat pump setup.
So what kind of setup do you have? It's obviously a heat pump. Is it single or dual stage heat? Is it dual-fuel with a gas furnace or do you have electric coils for your emergency heat?
So what kind of setup do you have? It's obviously a heat pump. Is it single or dual stage heat? Is it dual-fuel with a gas furnace or do you have electric coils for your emergency heat?
