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
Let me answer one issue at a time:
Installation- you thermostat is going to have 4 or 5 wires and is 24vac. It should be a matter of marking the wires are you remove them from old thermostat and connect them to same terminal on new thermostat. The connections will be labeled C, G, Y, B, W, R or R1 and R2 with jumper. just look at the letters on new thermostat and male sure you have same as old thermostat BEFORE disconnecting. I believe there is also a switch on back of new thermostat to switch between gas and electric heat, so pick correct one. Basically the green wire powers the fan, the blue or yellow powers AC compressor, white is for heat, and red is your power wire. You can make AC work by just putting red and blue wire together in case something happens and you need AC while you resolve it, although it will keep cooling till you disconnect.
Temperature difference: the temperature on the thermostat is only the temperature AT the thermostat. So if your thermostat is saying it's 75, then it's 75 just right there and another section of house can be much warmer if it less insulated or gets less air. When you noticed temperature difference, were the thermostats in same location. Also, most thermostats have a calibration adjustment you can use if it is off. In a nutshell, since the temp on thermostat is not exact temp for whole house anyway, just adjust thermostat over next day or so to find the temp that works best for you and go with that. In my old house, the thermostat was in a small hallway that would stay pretty cold so I had to set it to 70 just to keep my den around 75. There are ways to increase or decrease airflow to different areas if you have warm or cools spots also,
Final thing I wanted to point out is that Goodman is a terrible unit, I had 17 of these systems installed at one of my properties between 2006 to 2008. Since they have given so many issues, I have been replacing them as they break and am down to 2 units. They supposedly revamped the company in 2005 and offered the new units with good warranties and got the AC installers to push them so they can make more money as the Goodman units were much cheaper. None of the big companies push them anymore after all the issues they have had. I stay with Trane\ American Standard (same company) and haven't had any issues!
Male sure to have your unit serviced yearly to make sure coil is clean, freon is not leaking out, compressor is not overheating, and that there are no hot spots on evaporator coil.
Let me answer one issue at a time:
Installation- you thermostat is going to have 4 or 5 wires and is 24vac. It should be a matter of marking the wires are you remove them from old thermostat and connect them to same terminal on new thermostat. The connections will be labeled C, G, Y, B, W, R or R1 and R2 with jumper. just look at the letters on new thermostat and male sure you have same as old thermostat BEFORE disconnecting. I believe there is also a switch on back of new thermostat to switch between gas and electric heat, so pick correct one. Basically the green wire powers the fan, the blue or yellow powers AC compressor, white is for heat, and red is your power wire. You can make AC work by just putting red and blue wire together in case something happens and you need AC while you resolve it, although it will keep cooling till you disconnect.
Temperature difference: the temperature on the thermostat is only the temperature AT the thermostat. So if your thermostat is saying it's 75, then it's 75 just right there and another section of house can be much warmer if it less insulated or gets less air. When you noticed temperature difference, were the thermostats in same location. Also, most thermostats have a calibration adjustment you can use if it is off. In a nutshell, since the temp on thermostat is not exact temp for whole house anyway, just adjust thermostat over next day or so to find the temp that works best for you and go with that. In my old house, the thermostat was in a small hallway that would stay pretty cold so I had to set it to 70 just to keep my den around 75. There are ways to increase or decrease airflow to different areas if you have warm or cools spots also,
Final thing I wanted to point out is that Goodman is a terrible unit, I had 17 of these systems installed at one of my properties between 2006 to 2008. Since they have given so many issues, I have been replacing them as they break and am down to 2 units. They supposedly revamped the company in 2005 and offered the new units with good warranties and got the AC installers to push them so they can make more money as the Goodman units were much cheaper. None of the big companies push them anymore after all the issues they have had. I stay with Trane\ American Standard (same company) and haven't had any issues!
Male sure to have your unit serviced yearly to make sure coil is clean, freon is not leaking out, compressor is not overheating, and that there are no hot spots on evaporator coil.
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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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