electric fireplace 240 volts image
pumpkin
I have kind of new A/C unit (from 2007 - Goodman). I just purchased new thermostat from honeywell RTH230B (my old thermostat is off like 2-3 degree - it shows that temp. in the house is 76 and other in the house thermometers show it is 74 and A/C still runs + it fells cool in the house). anyways the one what I purchased is 15 min do it yourself :D but it's says
" works with most heating and cooling systems and gas fireplaces. It is not compatible with multi-stage heating/cooling, heat-pump systems, or electric baseboard heat (120 - 240 volts). - it says that if the old thermostat was mounted onto electrical box it was probably powered by 120/240) so how do I know if it was or not?! what could happen if I install this one and it was?!
Thanks
Answer
Do you have a voltmeter? Measure across you wires. In the US you got a 24 volt control voltage system, if it residential. Look at where the wires are going to on your old t-stat. The screws are marked with letters like ,,,
RH - This wire comes from the 24VAC transformer on the heating system.
RC - This wire comes from the 24VAC transformer on the air-conditioning system.
W - This wire comes from the relay that turns on the heating system.
Y - This wire comes from the relay that turns on the cooling system.
G - This wire comes from the relay that turns on the fan.
Before you disconnect anything write down what colored wires are connected to what screws and their markings. Then look at your new one and look for the same labeled screws. After you have compared them and understand where your going connect what to where and have written notes, then you can disconnect the old one and connect the new one. Don't mix anything up or you'll need a serviceman to straighten it out. Check out the links below before you start. Good luck, SS
Do you have a voltmeter? Measure across you wires. In the US you got a 24 volt control voltage system, if it residential. Look at where the wires are going to on your old t-stat. The screws are marked with letters like ,,,
RH - This wire comes from the 24VAC transformer on the heating system.
RC - This wire comes from the 24VAC transformer on the air-conditioning system.
W - This wire comes from the relay that turns on the heating system.
Y - This wire comes from the relay that turns on the cooling system.
G - This wire comes from the relay that turns on the fan.
Before you disconnect anything write down what colored wires are connected to what screws and their markings. Then look at your new one and look for the same labeled screws. After you have compared them and understand where your going connect what to where and have written notes, then you can disconnect the old one and connect the new one. Don't mix anything up or you'll need a serviceman to straighten it out. Check out the links below before you start. Good luck, SS
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Title Post: need help before installing new A/C thermostat!?
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Rating: 100% based on 99998 ratings. 5 user reviews.
Author: Unknown
Thank FOr Coming TO My Blog
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