Mini Split AC

[STIHLY DAN]

Of course it will, but the salesman who came out to give a quote said otherwise. It's just funny they don't know how their stuff works. The remote is used to set a point, which is then sensed on the incoming air to the evaporator unit, not by the remote itself. He was telling me the remote was providing feedback, like a real thermostat, which would imply some type of RF (not line of sight) communication. Completely possible of course, but completely wrong.

Other quote still came back high....little lower than the other guys for a 30K Mitsu vs. the 24K Daiken. But, I think I am going to go it alone and call them for the final turn on. Depending on how much I spend, I will likely buy a manifold set and pump. Throw in the micron guage and I could have the whole show ready to go when they arrive. Even with buying the $600 or so in tools, I'm still well over $1K ahead. That's a few loads of gravel, plus everything I need to keep it going in the future, not to mention installing a second system someday in the addition.

The older units had a pin hole to press that would tell the head or the remote to sense temp. Mitsu will cost more than a daikin, but for a do it yourself install Mitsu has an online web page for help.

 

[davem3261]

How big of a room is this going in? I put an 18k Mitsubishi in my parents living room and that room is huge.

 

[bpirger]

Just as an updated....completed the installation of the 2.5 ton Mitsubishi unit yesterday and now have a cooled house. I did the vast majority of the install myself, paid the tech to come out pressure test and evacuate the lines. Everything was fine, no leaks, and so far no problems....been running 24 hours. Saved just about $1800.

Nothing really tricky about it. decided not to buy the pump and gauges....now I have a relationship with a knowledgable guy should any problems arise.

Appears to be cooling the entire house quite well. Nominally 2500 sqft....very open....two floors at the moment (great room covered with "temporary floor"....going on 14 years temporary....until T&G pine hung on ceiling above). 88 outside yesterday, about 65 upstairs (where the unit is high on the wall) and never over 72 down stairs. Just what we wanted I think.

Thanks!

 

[Ashful]

Finalizing install of another two Mitsubishi units on my carriage barn, this Friday! Also using a pro for final setup.

 

[velvetfoot]

Just as an updated....completed the installation of the 2.5 ton Mitsubishi unit yesterday and now have a cooled house. I did the vast majority of the install myself, paid the tech to come out pressure test and evacuate the lines. Everything was fine, no leaks, and so far no problems....been running 24 hours. Saved just about $1800.

Nothing really tricky about it. decided not to buy the pump and gauges....now I have a relationship with a knowledgable guy should any problems arise.

Appears to be cooling the entire house quite well. Nominally 2500 sqft....very open....two floors at the moment (great room covered with "temporary floor"....going on 14 years temporary....until T&G pine hung on ceiling above). 88 outside yesterday, about 65 upstairs (where the unit is high on the wall) and never over 72 down stairs. Just what we wanted I think.

Thanks!

So, you have one fan unit (or whatever it's called) on the second floor?

 

[bpirger]

Yes, just one inside condenser unit on the wall, high up in the peak. It's about 11' up from the upstairs floor (gambrel roof inside....14' peak from the second floor...25' peak from the first floor). Upstairs is mostly open. Downstairs is also mostly open....but it actually does a really decent job everywhere. 30000BTU (2.5 ton) unit...single compressor (HUGE at about 3'x3'x14" thick...compared to what you typically see behind a house) and single indoor head. 5/8x3/8 line set 31' long. Looking forward to hot humid weather just to see how it does when its 95 and 90%.

 

[Ashful]

Surprise... they showed up a few days early.