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REPLACE FURNACE TRANSFORMER AL 01-06-2007
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Posted by AL on January 6, 2007, 5:53 pm


I AM REPLACING A BAD TRANSFORMER IN MY FURNACE THE NEW ONE IS A LITTLE
DIFFERNET DESIGN. I HAVE CONNECTED THE BLACK 120V AND WHIT COMMON FROM
THE TRANSFORMER. MY PROBLEM IS WITH THE SECONDARY 24 VOLT WIRING
FROM THE TRANSFORMER IS GREEN AND RED FROM MY THERMOSTAT I HAVE RED
AND WHITE (NO AC) FROM THE GAS VALVE I HAVE RED AND YELLOW HOW DO I
CONNECT THE REMAINING WIRES.

THANKS FOR ANY HELP


Radiant Heat 468x60
Posted by RBM on January 6, 2007, 6:13 pm


Connect the Red and Green secondary wires the same way the secondary wires
were connected on the old transformer. It doesn't matter if the colors are
different or reversed, (although I've never seen red and green used)


>I AM REPLACING A BAD TRANSFORMER IN MY FURNACE THE NEW ONE IS A LITTLE
> DIFFERNET DESIGN. I HAVE CONNECTED THE BLACK 120V AND WHIT COMMON FROM
> THE TRANSFORMER. MY PROBLEM IS WITH THE SECONDARY 24 VOLT WIRING
> FROM THE TRANSFORMER IS GREEN AND RED FROM MY THERMOSTAT I HAVE RED
> AND WHITE (NO AC) FROM THE GAS VALVE I HAVE RED AND YELLOW HOW DO I
> CONNECT THE REMAINING WIRES.
>
> THANKS FOR ANY HELP
>



Posted by on January 7, 2007, 9:47 am


On Sat, 6 Jan 2007 18:13:55 -0500, "RBM" <rbm2(remove
this)@optonline.net> wrote:

>Connect the Red and Green secondary wires the same way the secondary wires
>were connected on the old transformer. It doesn't matter if the colors are
>different or reversed, (although I've never seen red and green used)

It's close to Christmas, thus the red and green !!!

>
>
>>I AM REPLACING A BAD TRANSFORMER IN MY FURNACE THE NEW ONE IS A LITTLE
>> DIFFERNET DESIGN. I HAVE CONNECTED THE BLACK 120V AND WHIT COMMON FROM
>> THE TRANSFORMER. MY PROBLEM IS WITH THE SECONDARY 24 VOLT WIRING
>> FROM THE TRANSFORMER IS GREEN AND RED FROM MY THERMOSTAT I HAVE RED
>> AND WHITE (NO AC) FROM THE GAS VALVE I HAVE RED AND YELLOW HOW DO I
>> CONNECT THE REMAINING WIRES.
>>
>> THANKS FOR ANY HELP
>>
>


Posted by RBM on January 7, 2007, 9:57 am


I think the ones I usually get have purple and yellow wires. I'll try buying
some in December


> On Sat, 6 Jan 2007 18:13:55 -0500, "RBM" <rbm2(remove
> this)@optonline.net> wrote:
>
>>Connect the Red and Green secondary wires the same way the secondary wires
>>were connected on the old transformer. It doesn't matter if the colors are
>>different or reversed, (although I've never seen red and green used)
>
> It's close to Christmas, thus the red and green !!!
>
>>
>>
>>>I AM REPLACING A BAD TRANSFORMER IN MY FURNACE THE NEW ONE IS A LITTLE
>>> DIFFERNET DESIGN. I HAVE CONNECTED THE BLACK 120V AND WHIT COMMON FROM
>>> THE TRANSFORMER. MY PROBLEM IS WITH THE SECONDARY 24 VOLT WIRING
>>> FROM THE TRANSFORMER IS GREEN AND RED FROM MY THERMOSTAT I HAVE RED
>>> AND WHITE (NO AC) FROM THE GAS VALVE I HAVE RED AND YELLOW HOW DO I
>>> CONNECT THE REMAINING WIRES.
>>>
>>> THANKS FOR ANY HELP
>>>
>>
>



Posted by Colbyt on January 6, 2007, 6:32 pm



>I AM REPLACING A BAD TRANSFORMER IN MY FURNACE THE NEW ONE IS A LITTLE
> DIFFERNET DESIGN. I HAVE CONNECTED THE BLACK 120V AND WHIT COMMON FROM
> THE TRANSFORMER. MY PROBLEM IS WITH THE SECONDARY 24 VOLT WIRING
> FROM THE TRANSFORMER IS GREEN AND RED FROM MY THERMOSTAT I HAVE RED
> AND WHITE (NO AC) FROM THE GAS VALVE I HAVE RED AND YELLOW HOW DO I
> CONNECT THE REMAINING WIRES.
>
> THANKS FOR ANY HELP
>

Please turn of the caps next time.

Next time mark them as you take them off. Makes the job a lot easier. :)

The hot 24 side of the transformer goes to the thermostat. The neutral 24
side goes to the neutral side of the gas valve.

The return wire from the thermostat connects to the + side of the gas valve.

Colors don't matter. They should but sometimes don't. You have to read the
markings on the transformer and the valve.

If your system was wired with color coding in mind red = red and green =
yellow. They just used a two wire cable to the thermostat, both of those
wires are really red.

Colbyt



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