Help wiring a thermostat wrong!!!

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Old 02-27-14, 05:05 AM
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Help wiring a thermostat wrong!!!

I have a honeywell RTH 6350 thermostat that i am clearly wiring incorrectly... or programming incorrectly... I have a carrier multi stage furncae (I think based on the amount of wires i have) but also have a heat pump. Not sure on the part number of the furnace but i will add more details later... just wanted to get the conversation going... I moved into this house with no thermostat so i have no wiring labeled... PLEASE help me i have tried wiring my thermostat and clearly am doing it incorrectly.
 
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Old 02-27-14, 05:36 AM
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You will need to find out what terminal the other end of the wire is secured to .
Normally,
R = red
Y1 = Yellow
Y2 = ?
O/B = Orange
W1= white
G= green

Normally, but there is no true standard
 
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Old 02-27-14, 06:12 AM
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Is that a fairly simple process?
 
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Old 02-27-14, 06:23 AM
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I try to use blue for the " common " wire . The old mechanical mercury bulb tstats usually did not require a common . I seem to remember some / all the electronic tstats may / do require it ?

The " common " wire / terminal is the other wire attached to the 24 VAC transformer , usually located in the furnace .

The old tstats some times had a R1 & R2 . One of which was heat and the other cool . Can not remember which was which . Most applications , I jumpered them together and both were connected to the Red .

R = red - 24 VAC " hot "
Y1 = Yellow first stage of cool
Y2 = ? Second stage of cool
O/B = Orange Heat pump change over / reversing valve ( changes from heat pump mode to A/C / cool mode )
W1= white first stage of heat
W2= second stage of heat
G= green inside / furnace fan

God bless
Wyr
 
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Old 02-27-14, 06:42 AM
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Welcome to the forums.

You can't be guessing at the wire colors.

You have to remove the service access cover or blower door and locate where the thermostat wiring connects to the control board. Tells us what color wire is on which terminal.

We are also going to need the model number of your furnace which can be found behind the burner access cover on one of the sides.
 
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Old 02-27-14, 08:14 AM
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After work today I will go home and post where the colors go as well as the furnace model...
 
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Old 02-27-14, 03:39 PM
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Ok I have a FB4ANF030 carrier HVAC unit... Anybody know anything about this?
 
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Old 02-27-14, 03:51 PM
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Looking on the main board the only wires I see connected say R, C, T, and G.... HELP!!!
 
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Old 02-27-14, 03:55 PM
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The main board

This is the main board!! Please help me!!!
 
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Old 02-27-14, 05:34 PM
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Those are not the stat wires are they ?

They look like factory terminated wiring, perhaps for the fan.
 
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Old 02-27-14, 05:38 PM
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I guess they may be for the fan honestly I'm not really sure though... They are the only wires I see going into the unit where would the stat wires be?
 
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Old 02-27-14, 05:41 PM
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Take some pics of the unit from a further out zoom.
then a lil closer so we can get an idea of what your looking at
 
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Old 02-27-14, 05:46 PM
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Ok give me about 5 minutes please
 
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Old 02-27-14, 05:54 PM
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Pictures

Here are the pictures you've requested
 
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Old 02-27-14, 09:02 PM
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middle picture,
there is a group of wires marretted together.
These will be your stat wires (at least as best I can tell)
ID the colors and tell us where they go on the board or if they connect to another wire that runs to your outdoor unit.

There might also be a wiring diagram on the back of that door panel
 
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Old 02-27-14, 10:07 PM
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You have a heatpump with backup electric heating coils. There may be multi stage for the electric coils.

In the area I have highlighted......you'll see orange wirenuts. You need to identify the thermostat cable that goes to the thermostat. Tells us what colors the thermostat wires are connected to.



Link to your manual...... Carrier public documents techlit .pdf
 
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