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Old 07-25-2019, 03:39 PM
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dewilson58 dewilson58 is offline
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Quote:
Originally Posted by biker1 View Post
Does your neighbor have a special vacation setting whereby the system ignores the temperature setpoint and only turns on when the relative humidity setpoint is exceeded? If so, this sounds a bit strange. I would expect (want) the system to run when either the temperature setpoint or the relative humidity setpoint is exceeded. Setting the temperature setpoint in the low 80s and the relative humidity setpoint around 50-60% would be reasonable.

Why? Relative humidity is exponentially related to temperature and is also limited on how high it can go with hot temperatures. If the temperature in the house gets hot enough, you may never exceed the relative humidity set point. For example, if the temperature in the house was to reach 95F then the relative humidity will probably never exceed 60%. In this situation, the system will never come on but there could be a fairly high absolute moisture level (the dew point) in the house.



Good Post.