Wiring Lux TX9000TS - http://www.hvacmechanic.com/ Forums


Original message

Ricva94

96.228.41.144

"Wiring Lux TX9000TS" , posted Tue 22 Jul 16:49:user profileedit/delete messagepost reply


Hi all,
I am trying to replace my old Honeywell stat with Lux TX9000TS but ran in to wiring problem

On an old Honeywell I have

W1
W2
G
R
B
Y2
Y1

On a TX9000TS I have

W
Y
G
B
O
RC
RH
C

Does anyone know what goes where?
Please help me solve my wiring problem.

Thank you

[this message was edited by Ricva94 on Tue 22 Jul 16:53]

 

Replies:

Houston204



98.196.66.53

"Re(1):Wiring Lux TX9000TS" , posted Wed 23 Jul 00:34user profileedit/delete messagepost reply


Your new stat does not have W2 and Y2. If you were using these terminals you need a different stat. (multistage stat)



Post the model number of your old stat to verify the function of B.(possibly common C )

"Tip of the Day" Remember to remove power first.

 

 

ricva94

209.158.216.33

"Re(2):Wiring Lux TX9000TS" , posted Wed 23 Jul 07:35user profileedit/delete messagepost reply


Honeywell T874B1019
All terminals is connected but 'O' terminal

Thanks

 

 

Houston204



98.196.66.53

"Re(3):Wiring Lux TX9000TS" , posted Thu 24 Jul 23:09user profileedit/delete messagepost reply




I recommend a Honeywell RTH7400 or RTH7500.
option 170 = 8
Use conventional terminal identification.(not the posted color codes though, use your color existing color code)

"Tip of the Day" Remember to remove power first.