Mini-split AC with inverter compressor?
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  1. #1
    Join Date
    Jun 2008
    Posts
    100

    Mini-split AC with inverter compressor?

    Are there any with the variable speed compressor, like the "IQ drive" with central AC's?
    Laura

  2. #2
    Join Date
    Mar 2001
    Location
    North Carolina
    Posts
    428

  3. #3
    Join Date
    Nov 2007
    Location
    Tucson AZ
    Posts
    166

    Fujitsu for high SEER

    The mini split units from Fujitsu have SEER ratings as high as 21, and EER for heating as high as 14.5

    Good units, I have one in my home. It is very quiet when cooling or heating, and it is very quick to blow hot or cold air almost the instant you turn it on.

  4. #4
    Join Date
    Dec 2004
    Posts
    34
    X2 On the Fujitsu
    Be Careful, The Toes You Step On Today May Be Conected To The A$$ You Have To Kiss Tomorrow.

  5. #5
    Join Date
    Jun 2008
    Posts
    100
    Quote Originally Posted by obxtech View Post
    I think so. I found something that says the compressor speed modulates and it's an inverter compressor.

  6. #6
    Join Date
    Aug 2008
    Location
    Burlington , Mass
    Posts
    465
    I've installed many Fujitsu RMLQ mini splits. They are the most efficient units I've seen. Upon a call for cool or heat, they start at a low rpm and the longer they run the faster they go. I think its about a 12 minute run time to go from start to full speed. The theory behind the low speed start is to keep the start amperage way down and this is where the savings come into play. The compressors are run on a DC voltage provided by the Invertor


    I installed 2 9,000btu units on a first level of a 2 story home. The owners have OIL fired hot water heat. He did not buy any oil during the 2007-08 winter season. He heated his first floor with these 2 units and used a ceramic heater in each of the 3 bedrooms on the second level.

    We did have some 14 degree days here and the heat pumps kept the house at the setting of 70 degrees and were cycling. I'm sure it could have pulled 72 or 74 with ease.


    He told me his electric bill only increased 150.00/mo over his normal bill, and said its is far less than what he would have spent on oil.

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