Which wires to I hook up to new thermostat?

msbrew · #1 Jul 2, 2007, 05:59 PM

I would be so grateful if someone could help me out. I have an old Janitrol thermostat, just purchased a Lux programmable one. The wiring doesn't all match. I'm having a hard time with the RC and RH, which have a jumper--this is on the new one. Here is the diagram for the old wiring:

Y=yellow
G=green
R=red
O=brown

W2 and E share white wire
C=blue

Here is the letters on the new LUX:

W
Y
G
B
O
RC/RH
C

How would I connect the new one to the old one? I appreciate any info you can give me. By brain isn't working right or something!!

hvacservicetech_07 · Jul 2, 2007, 08:06 PM

I'm pretty sure you have the wrong thermostat, if you have a heat pump the new Lux thermostat will not work. I would also suggest another brand, Lux isn't known to be a good qaulity thermostat, and they don't last long.

labman · Jul 2, 2007, 08:13 PM

You may want to browse through the sticky at the top of the forum. It has some good info on thermostats and heat pumps.

msbrew · Jul 2, 2007, 11:20 PM

Quote:

Originally Posted by msbrew

I would be so grateful if someone could help me out. I have an old Janitrol thermostat, just purchased a Lux programmable one. The wiring doesn't all match. I'm having a hard time with the RC and RH, which have a jumper--this is on the new one. Here is the diagram for the old wiring:

Y=yellow
G=green
R=red
O=brown

W2 and E share white wire
C=blue

Here is the letters on the new LUX:

W
Y
G
B
O
RC/RH
C

How would I connect the new one to the old one? I appreciate any info you can give me. By brain isn't working right or something!!

Thanks for the info. I did figure out that I need a different one. I'll be purchasing a Honeywell tomorrow.

hvacservicetech_07 · Jul 2, 2007, 11:22 PM

Good deal, sometimes paying a little more is a good thing.

acetc · Jul 7, 2007, 01:23 AM

W-WHITE, R-RED, G-GREEN, 0-BROWN, Y-YELLOW, C-BLUE, JUMPER RC-RH
THE O (BROWN) is used for a heat jump to engage the reversing valve in the air conditioning mode. Nothing on the "B" terminal. Mike



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