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  1. HVAC
    I a building my mancave and shop. The mancave is about 500 sqft and includes a full bath, living area, office and kitchen. All are separated by doors. The heat loss/cooling load should allow a mini split 1800 to 2400 btu unit to do the job. For cost reasons, I would prefer a single wall inside...
  2. HVAC
    OK, so error code on my ductless said lack of refrigerant charge. Tech found inconsistant readings cooling vs. heating, etc. With Daikin on the phone, they found bad electrical connection to at least one of the EEV leads. Dakin said to replace EEV (under warranty, so I pay labor). Tech & his...
  3. HVAC
    I have an area of my house that I'd like to install a ductless minisplit system to provide both heat and AC. The house is in the Adirondack Mountains in northern NY where the temp can get down to -40F, though most mid-winter nights are 0F to 20F. Daytime winter highs are usually in the 20's...
  4. HVAC
    I'm putting in a 4 indoor 1 outside minisplit. I have 2 bedrooms where the lines can come out of the house in the same place (one is on the exterior wall, one is coming from an interior) Can I drill just one hole in my brick wall to have both linesets come out in the same hole? I have been...
  5. HVAC
    I have a Fujitsu mini split system which needs a little 410a refrigerant added to it. This particular unit has a very small leak, and needed a top off about 3 years after it was installed. It's now about 3 years after that, and it's not putting out very cold air. The wait to get an AC tech...
  6. HVAC
    I've been seeing the recent rise in popularity and efficency of mini-split heat pump systems for both heating and cooling. I'm interested in trying one out in my house. One thing I've noticed is that manufacturers are really pushing the DIY install angle, either with pre-charged sealed linesets...
  7. Electrical
    I am installing a 115V mini split unit, all new wiring and a disconnect box. The only disconnect I could find for this unit is a 30 amp fusible AC disconnect and I got 25 amp fuses, since the unit is 20 amps. On the disconnect box, it says 30A 240V disconnect. So, if I use 1 line and 1 load...
  8. HVAC
    Hi DIY-ers. I've been researching mini split systems and for just under 1000 sq ft I am seeing 3 zone prices in the range of 10K. I've looked at Fijitsu as well as York. I thought the first estimate was way too high, but estimate 2 is right in that same area +10K. Thats with 1x12K BTU and 2x9K...
  9. HVAC
    I just had the head of a ductless mini-split unit switched from a condensate pump over to a through the wall run to a nearby washer/dryer stack and I am not really pleased with the work. This is probably my favorite part. I really like how they notched the studs of my load bearing wall instead...
  10. HVAC
    Hi I'm self-installing a concealed, ducted mini split. This unit: http://www.mitsubishipro.com/media/255148/sez-kd15na-suz-ka15na_submittal.pdf (Not doing any of the actual hook-up... just siting the unit and running ducts, drain and rough-in of wiring.) My question is about what to run for...
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