4-5 Ton AC recommendation

[Aeroknow]

I wouldn’t even consider the ceiling cassette. They are made to be hung above and even with the ceiling. Totally would have to rig it up to be hing up tight surface mounted to your ceiling. Imo, not an option.

Put a charcoal filter and fan standing up(scrubber) in all four corners and you’ll be golden.

 

[Apalchen]

When I first walk in the door there is a few ft of area all the way across I plan to leave open just so I can get around and maybe keep water there. So anyways would it be alright to mount it there in that area or should it be further down the room in between the lights?

 

[Renfro]

I have quite a few installs under my belt. I’ve never pressure tested with nitrogen. Although that is what professionals will do, that I am not lol.
I have confidence in my connections. Not once have i lost refrigerant. Pull vacuum. If it holds for a couple hrs, most of us self installers say it’s ok, and it is.

I’m from the trades. Got a union plumber brother with hvac friends. They even say you don’t have to.
But of course they do on installs. Over kill in my opinion.

The reason for the pressure test is a vacuum pulls fittings together and the pressure test pushes them apart. It also makes for a deep vacuum since you are purging all the air (moisture) with the nitrogen and then pulling a vacuum.

 

[Aeroknow]

When I first walk in the door there is a few ft of area all the way across I plan to leave open just so I can get around and maybe keep water there. So anyways would it be alright to mount it there in that area or should it be further down the room in between the lights?

As long as the back of the handler isn’t obstructed, and like i was saying, it aint blowing directly on your DE commercial fixtures, you’ll be good. Looks like you fixtures are hung down perfect.

 

[Renfro]

When I first walk in the door there is a few ft of area all the way across I plan to leave open just so I can get around and maybe keep water there. So anyways would it be alright to mount it there in that area or should it be further down the room in between the lights?

Thats fine, the air should circulate in the room, you don't want to blast some plants directly.

 

[Aeroknow]

The reason for the pressure test is a vacuum pulls fittings together and the pressure test pushes them apart. It also makes for a deep vacuum since you are purging all the air (moisture) with the nitrogen and then pulling a vacuum.

I know. But i’ve never had a problem not pressure testing with nitrogen. ALLOT of other people don’t either. Nice shiny flare, little nylog, never have had a problem.

 

[Renfro]

To hang a ceiling mount you should use strut channel. Then you can locate some bolts that will have nuts and washers on them already (loose) and you can lift the unit up and slide it onto those bolts then tighten them up. The bolts would have a nut above and below the part on the air handler, this allows you to set an angle and have it tilt slightly back for condensate drainage to go to the pump.

 

[Apalchen]

I have plenty of fans moving air and that's a super easy place to mount it so that's what I'll do. About the carbon scrubbers what fans and filter size u recommend for that purpose. I have some 10 Inch 1000 CFM fans and 10x40 can lite filters set up for what will now be a back up exhaust. So I'll need to purchase some more.

Are back draft dampers effective for keeping smell in if I place them on my exhuast and intakes.

 

[Renfro]

This shows how i did mine

 

[Apalchen]

This shows how i did mine

View attachment 4549874

How does the head unit hook to the bolts were they threaded holes for them already?

 

[Renfro]

They have a little condensate pump in there so it will pump it up hill a little bit (not sure what it's rated for on head height) but I only needed it to pump up a little to get to where it goes downhill. Works great. Here is a few shots of how I setup the drain

 

[Renfro]

How does the head unit hook to the bolts were they threaded holes for them already?

With the side covers off the unit you can see there are two slots on each side, so you can slide it on the hanging bolt thats already located. Does that make sense?

 

[Apalchen]

Also I'm building and roof for the units do you think a couple 4x4 post with 2 rows of unistrut is sufficient for mounting it outside ?

 

[Apalchen]

With the side covers off the unit you can see there are two slots on each side, so you can slide it on the hanging bolt thats already located. Does that make sense?

Yes I got ya. If you take the side covers off there are slots and I assume you put the bolts down through the slots and used a washer and nut inside the unit to hook to the bolt. Is that what you mean?

 

[Renfro]

Yes I got ya. If you take the side covers off there are slots and I assume you put the bolts down through the slots and used a washer and nut inside the unit to hook to the bolt. Is that what you mean?

You already have the nut on the hanging bolt, then you slide the slot on above the nut and then it will hang while you tighten the nuts

 

[Renfro]

Also I'm building and roof for the units do you think a couple 4x4 post with 2 rows of unistrut is sufficient for mounting it outside ?

Lost me there, no clue what you mean.

 

[Apalchen]

The outside units, the weather here is nuts in winter I don't want the units right on the ground even though I'm adding like a lean too roof to keep the snow off them. I was thinking instead of buying a stand or something I could just put 2 4x4 posts say 4 ft apart and run some unistrut in between the two post and mount the outside units up ok those so they will be off the ground.

 

[Renfro]

Well I will let you figure that out, obviously it needs to be strong and you need some clearance on the back side to a wall. Wind can really get a hold of these tall condensers so bolt it down thru it's 4 feets with some 3/8". One really tight way would be to grab concrete post forms, set them in the ground about 18 inches and pour some concrete footers with level tops to bolt it down on, but that gets expensive probably. They do make wall mount brackets for condensers that are steel. That would probably be the cheap way to get it done.

 

[Renfro]

If I remember right my condenser units were about 200 pounds.

 

[Apalchen]

If I was gonna add some cmh and eventually some led lighting in maybe as side lighting does a 1000 watts of those produce the same amount of btu as 1000 watts of de hps? I'm still controlling my temps fine with fans atm and was considering maybe going with the 5 ton unit instead so I could add plenty of lights. It's not really that much more and I mean more is good right? Lol

Or let me ask this might be a stupid question but can I not just mount a full size air handler to my ceiling and leave it open just blowing as long as I have plenty of air movement I can get 4-5 ton heat pump split systems cheaper but don't want to mess with duct work want the AC up and going pretty soon unless someone better at math than me could design an easy duct system Im sure I can build it. Still need to see how hard the low ambient parts are to install on those units as well.