What Exactly Controls My Air Conditioning Unit?

When you have both a thermostat and a humidistat, it can be difficult to figure out what exactly controls your air conditioning. For example, let’s say you just recently replaced your air conditioner and the new controls will only run the if your air conditioning unit both the temperature and the humidity settings are exceeded. What should you do?

The most common configuration of thermostat and humidistat for controlling air conditioners involves the two working separate controls. The air conditioner turns on if the conditions in the home meet the set points for either the thermostat (i.e. 88 degrees F) or the humidistat (58% relative humidity). You can easily check if you have this type of configuration by:

First, check if temperature alone turns on air conditioner. Set the humidistat to the highest relative humidity requirement (largest RH %) and then set the thermostat cooling setting to the lowest temperature. If the air conditioner turns on after a few minutes, it confirms that the thermostat can control it independently.

Furthermore, check if relative humidity alone turns on the air conditioner. Set the thermostat cooling setting to the highest temperature, and then set the humidistat to the lowest relative humidity requirement (lowest RH %). If the air conditioner turns on after a few minutes, it confirms that the humidistat can control it independently.

If the air conditioner turns on with both of these steps then Romark A/C recommends setting the humidistat at 58 percent relative humidity and your thermostat temperature setting to 88 degrees. However, if the air conditioner fails to turn on either of these two steps, this recommendation is not appropriate and we recommend referring to your manufacturer recommendations. There are various reasons for why this may occur and further research may be required to determine a common control strategy.

In the typical home, air conditioning uses more electricity than anything else—16% of total electricity used.  In warmer regions AC can be 60-70% of your summer electric bill. This is where the savings are folks, not in worrying that you left your cell phone charger plugged in too long. The easiest way to save is to run the AC less often, and to dial the temperature up a degree or two when you do run it.  My tips below show you how to be comfortable at warmer temperatures.  I use these tips myself, and as a result I save hundreds of dollars every summer.  I could take a trip to Las Vegas every year from what I save by not using AC.  Even if you’re determined to not use your AC any less, we’ll cover ways to keep the heat out of your home, and more efficient air conditioners, which can still save you money.

       Overall, you want to make sure that your air conditioning unit and heating system is in fine shape for the upcoming sweating scalp summer season. Make sure everything is in order by scheduling a free energy review.

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