THCFarmer.com
121,132 Members Log In Register
Log In Register

Grow Room A/C

  • Thread starter Thread starter CannabisJohn
  • Start date Start date
  • Tagged users Tagged users None

Grow Room A/C

CannabisJohn 2,370 Replies 417,876 Views
Page 44 of 119 · Replies 861–880 of 2,371
#861
with these inverter mini splits is a 3 ton the largest available? Does the line set have a maximum span from condenser to coil? Running two splits may be my best n safest option.
 
#862
I believe that a couple of 2 ton inverter style mini splits will be your most economical (or whatever sizes you need). In residential split systems it will be too expensive for inverter equipment. 2 speed equipment is not the same. You need compressor to be variable speed to be good. The air handler being variable speed really doesn't do low load conditions.
 
#863
dieseldawg2480 said:
with these inverter mini splits is a 3 ton the largest available? Does the line set have a maximum span from condenser to coil? Running two splits may be my best n safest option.
Click to expand...

In a single zone unit 3 ton is the biggest. Line set max distance is set by the manufacturer of the unit. You have to see their specs for each unit. How far are you talking?
 
#864
dieseldawg2480 said:
thanks! yeah a decade or more back the residential r-22 days. when recovery was just started to get regulated. is when I worked for the fam doing furnace n ac cleanings and installs. I can put it together and take them apart. I know nothing about sizing and the new technology they have today 410a etc.
Click to expand...

Sizing a/c units with R410A vs R22 is no different. A ton is a ton. For our grows I use 6000 btus per 1 kw of unvented lighting which is a bit of overkill but that covers anything else in the room. The actual number used by engineers is 3413 btus per kw. This does not cover any additional heat loads or construction of the room.
 
#865
CannabisJohn said:
In a single zone unit 3 ton is the biggest. Line set max distance is set by the manufacturer of the unit. You have to see their specs for each unit. How far are you talking?
Click to expand...
I took a look at the specs of the Mitsubishi mr slim and my line set length is well in range. thx
 
#866
I have a question about cooling the DIY window AC box's I see around quite a bit now.

I built one myself as a supplemental to my mini split.

I am wondering if I should leave the fan exhausting the box I built around the coils (675cfm 8" max fan) on 24/7 or if its ok to just let it cycle on and off with the AC unit?

It is currently being controlled by my Sentinel CHHC-4.

The AC is a 12000BTU window unit I stuck through the wall (rigid insulation).
 
#867
Smokeyjojackson said:
I have a question about cooling the DIY window AC box's I see around quite a bit now.

I built one myself as a supplemental to my mini split.

I am wondering if I should leave the fan exhausting the box I built around the coils (675cfm 8" max fan) on 24/7 or if its ok to just let it cycle on and off with the AC unit?

It is currently being controlled by my Sentinel CHHC-4.

The AC is a 12000BTU window unit I stuck through the wall (rigid insulation).
Click to expand...

Cycling is fine.
 
#868
CannabisJohn said:
In a sealed room it may be enough a/c but in your case I think not. I would do minimum of 8000 btu unit
Click to expand...
Hey CannabisJohn, curious to know what you think my ac needs would be with a room that is running 8000watts in the evening strictly? The size of the room is as of yet undetermined but I would venture a guess at 500-600 sq ft
 
#869
thoughtworks said:
Hey CannabisJohn, curious to know what you think my ac needs would be with a room that is running 8000watts in the evening strictly? The size of the room is as of yet undetermined but I would venture a guess at 500-600 sq ft
Click to expand...

3-4 tons.
 
#870
Is there stand alone versions that would fit my needs? I'm considering getting gavita pro 1000 x 8 without air cooled hoods to optimize my lumens.
 
#875
thoughtworks said:
Something that could handle cooling the room on its own and isnt hanging out of a window
Click to expand...

You could do a regular house split system for 4 tons or a ductless mini split if 3 tons is enough. Both have an indoor and outdoor unit that are connected by wire and piping.
 
#876
@5-6000 btu/9-kw On the low end 45,000 to 54,000 high end btu's total. Whats ur opinion on a 5 ton mobile home (RV) ac being able to handle this size load? Will this style of AC work? thx! D-dawg
 
#877
dieseldawg2480 said:
@5-6000 btu/9-kw On the low end 45,000 to 54,000 high end btu's total. Whats ur opinion on a 5 ton mobile home (RV) ac being able to handle this size load? Will this style of AC work? thx! D-dawg
Click to expand...

Should work just fine if installed properly.
 
#878
Hi John. Let me start off by saying I'm a huge fan!

Last night I just sectioned off a garage with an insulated dry wall...wall. I would estimate the room to be 10'x12'. For the summer only gonna run 1 1k gavita on a mover since I live in so cal and temps push in the low 100's. I was thinking since the rooms insulated I can get away with a 12,000 btu window unit. I would estimate the room to be, give or take, 120 sq ft.

Truth be told. Trying to take the cheap way out since I already have the window system.

Edit: actually after reading through the thread a bit I think it's a yes.
 
Last edited:
#879
ronvmpc said:
Hi John. Let me start off by saying I'm a huge fan!

Last night I just sectioned off a garage with an insulated dry wall...wall. I would estimate the room to be 10'x12'. For the summer only gonna run 1 1k gavita on a mover since I live in so cal and temps push in the low 100's. I was thinking since the rooms insulated I can get away with a 12,000 btu window unit. I would estimate the room to be, give or take, 120 sq ft.

Truth be told. Trying to take the cheap way out since I already have the window system.

Edit: actually after reading through the thread a bit I think it's a yes.
Click to expand...
Thanks for the compliment. That size unit should be enough for at least 2 lights.
 
Page 44 of 119 · Replies 861–880 of 2,371
Back
Top Bottom