How DIY is this Mini-Split?

[JimVonBaden]

http://www.ebay.com/itm/9000-BTU-14...596753?hash=item43f1445791:g:axEAAOSw2GlXHF81

http://media.wix.com/ugd/5303e7_f938241d0ada4a4a94bffa915112bd5c.pdf

I see it needs to have moisture and air vacuumed out, which I can do, but it doesn't mention charging. Does it come precharged, or do I need an AC professional to charge it?

Thanks,

 

[rsanter]

It does not come charged.
You need to install the inside and outside units.
Then you run copper lines between then and have to solder those lines.
Evac and charge the system and you are good to go

Bob

 

[JimVonBaden]

Interesting how the instructions completely leave out the charging part, but demonstrate the evac part. I know some come DIY and charged.

 

[rlitman]

Interesting how the instructions completely leave out the charging part, but demonstrate the evac part. I know some come DIY and charged.

The instructions were written by someone who is not fully fluent in English, but they DO indicate that the unit comes charged. Refer to the bottom of page 18 (the last page):

The biggest length for our connection pipe can be 15m. More 20 g refrigerant is
necessary for per miter if the length is over 7 M

 

[JimVonBaden]

Interesting. I sent an e-mail to the manufacturer to see.

Thanks,

 

[Git]

One of the bullet points:

"Pre charged outdoor unit and pre vacuumed indoor unit"

So you need to pressure test the lines, vacuum and then release the charge

No soldering, it comes with a 16' line set which looks to be flared

 

[Ohmthis]

I've never seen (besides split condensers designed for r22) units not come pre charged for X amount of lineset. On a side note, DO NOT trust the factory flares on the copper lines. Cut them and reflare with an appropriate tool. When pulling your vacuum, it will need to ba a deep one (micron gauge required). You may be better off to install units and run the line set, wire, and drain. Then have a qualified HVAC tech do the mechanicals if you don't have the tools. I don't know what you have so that is not poking at your abilities.

 

[JimVonBaden]

I just heard back from the seller. Yes, they come pre-charged.

Thanks guys. I have an HVAC friend that can assist if needed in the vacuum and final set-up.

 

[captain14]

For your garage? Hopefully you get it soon with the heat wave coming over weekend here.

 

[Trey T]

Looks like typical mini-split that bunch of people on here DIY install .... comes precharged w/ R410a and flared copper connections.

 

[JimVonBaden]

Cheap yes, at $600, but I wont work it too hard, plus it does both cool and heat. If it lasts a few years only I am OK with that.

 

[cory58]

Looks like typical mini-split that bunch of people on here DIY install .... comes precharged w/ R410a and flared copper connections.

Not exactly the same as the Mr. Cool. Installation instructions on this one require vacuuming with a pump.

 

[Fueler]

might want to look a little more. Here is a bigger one for less money.
http://www.ebay.com/itm/12000-BTU-1...ab6a09b&pid=100005&rk=1&rkt=6&sd=291810596753

I do wonder what the anti-cold air feature is. Heat?

 

[k_ross]

might want to look a little more. Here is a bigger one for less money.
http://www.ebay.com/itm/12000-BTU-1...ab6a09b&pid=100005&rk=1&rkt=6&sd=291810596753

I do wonder what the anti-cold air feature is. Heat?

I don't know for sure, but I think that means when you have it in heating mode, when it enters a defrost cycle to clear ice buildup on the outside unit, it won't blow cold air during the defrost cycle.