Sanyo 24KHS72 AC/HP DIY install project - Page 7

AC_Hacker · 10-27-09, 12:01 AM

Quote:

Originally Posted by Xringer

My wife thinks the indoor unit is way too big..

I wasn't able to do it, because my house is so small, but if you can locate the indoor unit center over a window or door, it'll pretty much dissappear.

The output of the indoor unit is pretty much unobtrusive, but you don't want it wafting right on you, where you spend most of your time.

Quote:

Originally Posted by Xringer

Why isn't there a mesh screen back here to keep the leaves off the coil??

Good idea. The fins are so thin that it would be very easy to damage them with a vacuum tool.

Mine has been in operation nearly a year and it could use a bit of cleaning.

Regards,

-AC_Hacker

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NiHaoMike · 10-27-09, 10:27 AM

Quote:

I think (guessing here...) that it's advisable to let a couple of hours pass after the unit has been turned to the upright position, before you power it up. I have heard this before... I don't know if this is refrigeration folk lore, or if it is really specified practice. It seems reasonable to me, as I would think that it would allow time for the refrigerant and lubricant to settle into their proper places. For me, the unit was in the upright position for couple of weeks, due to other demands.

Doesn't matter as much now. It does need to be upright for operation, but that's it.

And use compressed air to clean the coils.

AC_Hacker · 10-27-09, 12:02 PM

Quote:

Originally Posted by NiHaoMike

And use compressed air to clean the coils.

The fins on the inside unit are extremely thin... almost like foil.

The fins on the outside unit are somewhat thicker, but not by much. They are thinner than air conditioner fins I have encountered.

It would be possible for powerful compressed air to damage these fins. Use compressed air at your own risk...

-AC_Hacker

Xringer · 10-27-09, 05:59 PM

Quote:

Originally Posted by AC_Hacker

The fins on the inside unit are extremely thin... almost like foil.

The fins on the outside unit are somewhat thicker, but not by much. They are thinner than air conditioner fins I have encountered.

It would be possible for powerful compressed air to damage these fins. Use compressed air at your own risk...

-AC_Hacker

Yeah, they do look super fragile. If I used air, I would regulate it down really low.
And, it seems like you would have to blow it backwards, from the fan side.

Funny thing happened today at the AC supply place, I looked up about
8 feet up on a high rack and saw a bunch of CPS micron meters just like yours.
They were in bubble packs, just hanging there! I missed seeing them
the other day and the staff missed telling me they were in stock.
Too bad I ordered that Fieldpiece gauge on-line!

Got some flex conduit and some small parts today but ran into a snag this afternoon on the wiring.
My wire is 12-2 and not the 12-3 that I need for this.. The code for 230
here is black, white, red & copper-ground for this kind of app.
Seems so dumb, since regular 12-2(Plus bare copper) would work fine
and be easier to install..Double grounds is a waste of good copper.

At least I got the box out there before the rain got bad..

This Duck box looks like it's made to allow the rain water to leak in and drain out the bottom..
I hope it never fills up..

NiHaoMike · 10-27-09, 09:06 PM

Quote:

Originally Posted by AC_Hacker

The fins on the inside unit are extremely thin... almost like foil.

The fins on the outside unit are somewhat thicker, but not by much. They are thinner than air conditioner fins I have encountered.

It would be possible for powerful compressed air to damage these fins. Use compressed air at your own risk...

-AC_Hacker

I have used compressed air to clean motherboards. Just keep a distance and it should work great.

Xringer · 10-28-09, 04:07 PM

Not much doing today. It's been raining all day, so we took a run to Home Depot and
got 25 feet of 3-12 cable and an outdoor security light fixture.

The wiring from the breaker box to the outdoor Service Disconnect box is done.
It's tied into a linked pair of 20 Amp breakers. (Taped over until Commissioning Day).

This afternoon I picked up the Mini-Duct parts. It looks like good quality stuff.

Tomorrow the rain should stop and I can get this project moving!

Xringer · 10-29-09, 06:20 PM

Decided to put the hole in the wall a little lower, so it would be easier
for my wife to remove the filter/cover for cleaning.

The hole went between 2 studs that were about 4" apart. My Stud-Finder worked very well this time.

Installed the bottom half of the SlimDuct.

Screwed on the mounting panel.

Installed the 4 conductor onto the indoor terminal. Needs small lugs, and a strain relief for the cable.

Hung the indoor unit on the wall. My wife had a problem getting the line-set,
cable and drain hose, to go in, they were too big. It was the foam.

Very tight fit. Should have split the foam sleeve and taped it tight.
I hope that drain hose isn't smashed flat.!.

Carefully bent the line set down, using a short wooden dowel.

A shot from down the hall.

My hope is to push warm air down this hall to rooms on his end of the house.
If this works, I just might save a bundle on heating oil..

Daox · 10-29-09, 07:54 PM

Wooo, nice. Its not quite as big as I thought it was going to be. How much does that indoor unit weigh?

Xringer · 10-29-09, 08:45 PM

Quote:

Originally Posted by Daox

Wooo, nice. Its not quite as big as I thought it was going to be. How much does that indoor unit weigh?

25.6 Pounds per the spec.. It feels heavier to me. (But, I'm old).

http://sanyohvac.com/assets/document..._submittal.pdf

When you aren't used to seeing something Height 11-23/32” ♦ Width:41-15/16” ♦ Depth: 8-19/32”
Hanging on your living room wall, it does look a tad on the BIG side..

The outdoor unit is not only larger than it looks in pictures, it's heavy too..

I heard it's going to be warm on Saturday, so I may take tomorrow off
and do the line-set install when it's nice out!

As soon as the line-set is in place, I'm hauling out the out-door unit and
hooking it up, so I can start doing some pressure testings.
I'll do the liquid soap thing and also see if it will hold 100 PSI over night.

It turns out the Climate Doctors are having a 3 day shipping delay!
Money spent on US Postal Service - Priority Mail wasted?

When I get that micron gauge, I can start checking the vacuum.

If all goes well, I'll start get an AC tech over here to open the little bag with the allen wrench..

~~~~
Hey! AC_Hacker!
Got some tips on bending 5/8" copper tube without kinking it?
I was thinking using a 5 gallon bucket as a mandrel..

AC_Hacker · 10-29-09, 09:52 PM

Quote:

Originally Posted by Xringer

Hey! AC_Hacker!
Got some tips on bending 5/8" copper tube without kinking it?
I was thinking using a 5 gallon bucket as a mandrel..

Don't know if you're serious, but conduit benders aren't too expensive, and they do a good job of bending without kinking. I used one to bend 10 feet of soft copper into a helix. Worked great.

Your install looks very good. Very much like mine only about 2x bigger... even the wires are bigger.

Great job of documenting your progress... best on the web!

I'm very interested to hear what your AC tech has to say about your work. I'm also interested to know what he charges you for his allen wrench expertise.

Regards,

-AC_Hacker

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10-29-09, 06:20 PM	#67
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	Drilling! Decided to put the hole in the wall a little lower, so it would be easier for my wife to remove the filter/cover for cleaning. The hole went between 2 studs that were about 4" apart. My Stud-Finder worked very well this time. Installed the bottom half of the SlimDuct. Screwed on the mounting panel. Installed the 4 conductor onto the indoor terminal. Needs small lugs, and a strain relief for the cable. Hung the indoor unit on the wall. My wife had a problem getting the line-set, cable and drain hose, to go in, they were too big. It was the foam. Very tight fit. Should have split the foam sleeve and taped it tight. I hope that drain hose isn't smashed flat.!. Carefully bent the line set down, using a short wooden dowel. A shot from down the hall. My hope is to push warm air down this hall to rooms on his end of the house. If this works, I just might save a bundle on heating oil..

10-29-09, 07:54 PM	#68
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	Wooo, nice. Its not quite as big as I thought it was going to be. How much does that indoor unit weigh? __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

10-28-09, 04:07 PM	#66
Xringer Lex Parsimoniae Join Date: Feb 2009 Location: Woburn, MA Posts: 4,918 Thanks: 114 Thanked 250 Times in 230 Posts	Not much doing today. It's been raining all day, so we took a run to Home Depot and got 25 feet of 3-12 cable and an outdoor security light fixture. The wiring from the breaker box to the outdoor Service Disconnect box is done. It's tied into a linked pair of 20 Amp breakers. (Taped over until Commissioning Day). This afternoon I picked up the Mini-Duct parts. It looks like good quality stuff. Tomorrow the rain should stop and I can get this project moving!