HVAC / Thermostat / Temperature
rcc421
| Posted in General Questions on
We live in the piedmont area of NC. We have a 2016 built green home. Our HVAC is a LG mini split and of course, we have a ERV . We currently have the thermostat set at around 64; however, the temperature can get up to 70ish. This makes sense when the sun warms up the house later in the day; however, it can get up to 70 around 5am! If I set the thermostat around 70, it can get up to mid 70s. I guess what I am saying is that it seems impossible to regulate. Any suggestions as to what is going on?
Thank you.
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Replies
Rhonda,
A lot of people report the problem you describe. Sometimes, it's a symptom that occurs when a ductless minisplit head is installed too close to the ceiling. Other times, it's just a glitch of the unit design.
Fixing it often involves buying a wall-mounted thermostat compatible with the unit -- and that's expensive. The low cost solution is just to set your thermostat lower. If you are now setting the thermostat to 64 degrees, try 60 degrees.
Try different control setups. Minisplits allow more room temperature variation than regular HVAC. Try setting the fan to a lower speed and or changing the direction of the vanes and see how it works out. I have found I have to get each unit set to what I want from them to be happy with room temperature
LG makes wired thermostats for their mini-splits, some for ~$100. Some are dedicated for mini-duct or ceiling cassettes. With the model number of your wall coil unit you can see which (if any) would be compatible.
Thank you all for your replies. We are ducted. We have a wall mounted thermostat. The fan is on low. I think Keith may be correct in the temperature variations.