Co2 EXPERTS WANTED!!

[AppleFarmer]

I'm having an issue with my growroom design...(specifically Co2 realated) maybe someone can help me sort out....

I just finished construction on an 8x8x8 room. I m tring to go as sealed as possible. So I have a 6in inline fan cooling 2000 watts. I have a portable ac(9,000btus) that I HAVE to use to cool and here inlies the problem. The ac is physically located in the room with its exhausts going to a hole in the cieling via 4in ducting so naturaly its taking air from inside the room out...Co2 enriched air. This is not good.

I thought about hooking up some sort of relay that would shut the ac off while the Co2 is doing its thing. The problem here is after the ac is turned off, you have to physically turn it back on and reset all of the perameters.
I am using a 20lb tank and a greenair regulator...this baby will drain fast trying to keep up with what is exhausted.

This ones boggling my brain boys...HELP
Af

 

[irie-i]

is a your regulator the same as a CO2 moniter?

 

[Guest]

Two options:

1. Buy a split system A/C

2. Duct a window A/C from one room to another.

Both methods will increase positive pressures in the grow room but you will not get CO2 sucked out. It will be blown out due to pressure but slower than having it sucked out......comprende amigo ?

Google a split system or let me find a link to some bros who sell turn key split A/C systems.

http://www.igshydro.com/cart.php?target=category&category_id=1018

 

[Indica Jones]

Is that a portable a/c unit? I see the intake/exhaust hose, where is the exhaust hose?

 

[guineapig]

on first analysis i fear that a 6 inch inline fan might not be capable of the kind of exhausting power you'll need.....but i could be wrong......so you do not have glass lenses which would keep the co2 from being sucked out, right?

and what kind of greenair regulator? a fancy electronic one or an old-school manual gauge?

i love atmospheric questions......-guineapigz

 

[AppleFarmer]

My room is 95% sealed, this includes the hoods, for the exception of this 'lil problem.
I just moved the ballasts out of the room and am retesting inside for temperture, maybe the 6in inline can take care of it...I think the fan is doing a great job, I can touch the hood and it feels cool.
I suppose if this turns into a bigger issue, I could sell the ac then cool each hood individualy with bigger fans.
What do ya think?

irie-i-
I use the old school green air regulater. I have my room fully together which I'll post pics of when I get a camera.(soon)

Indica Jones-
I have a 4in hose taking the hot exhaust out through a hole in the cieling. There is no intake hose, the intake is in the room.
peace
Af

 

[Rellikbuzz]

and what kind of greenair regulator? a fancy electronic one or an old-school manual gauge?

I believe he's referring to his tank gauges/regulator, not a co2 monitor like, I believe, your thinking. It doesn't look from the pics like he has a PPM monitor. I'm guessing that he's using a chart to calculate the flow rate of his regulator, based on the cu ft of his grow room, to estimate his PPM's. Might want to clarify that, bro!

 

[irie-i]

i push cool air from outside the room through the lights (w/ glass) and out again. if theres any leaks, cool air will leak into the room, nothing leaks out.

ive heard the matador CO2 moniter is the "cutting edge" for control. it can keep your room at whatevef CO2 you want it at (1500-1800 ppm) and disables the CO2 in the dark.

presently i have my CO2 on a repeat cycle timer that activates the burner (greenair cd6) for the prescribed amount of time to fill the room, and activates exhaust/intake fans for the rest of the hour. i am learning that perhaps this is old technology and i am wasting my CO2. this is why exactly i have become interested in sealing my room.

the split system a/c seems rather space consuming, and where i live noone has a/c units outside. do all portable a/c's exhaust hot air?

 

[Guest]

if it were me
i'd shitcan that portable ac and install a 10.000 btu window unit
home depot for about $200
also vent the inlet side of your lights with outside air
greenair has a cdds-2 fuzzy logic controller/cdm6000 sensor combined with the cd-6
burner that will keep that room at 1500ppm for 20 days burning 20lbs/5 gals of propane
also sears has a nice 70 pint dehumidifier for under $300

fwiw

 

[AppleFarmer]

I'm starting to lean towards your school of thought dogstool. The only problem with the window unit is I'm trying to keep this as stealth as it can be. As of right now you can hear a gently whooshing sound from the inlines.
Moving the ballast out of the room seems to be a good choice(when is it not?) I'll have a better gauge when I can get back to the room later today and check the temp.

Thanks to all who have helped.
peace
Af

 

[AppleFarmer]

NEW SHOTS

NEW SHOTS

As promised new shots of the room.

 

[AppleFarmer]

Anyone tell me what the max temperature should be with c02 enrichment?
As of now with the ballasts out of the room the temp inside is between 88 and 92.
Af

 

[irie-i]

92 is high but okay with co2, but bugs breed fast in the higher temps. before i had aircools i couldnt use co2 because of that. your a/c doesnt cool it below 88?i thought window unti too, but same problem. it really compromises the stealh. do all portable a/c exhaust co2 and stinky air?

 

[AppleFarmer]

These are the temps with out the ac on. All would be perfect if the ac were running, except for the Co2 being exhausted out!
Af

 

[Guest]

applefarmer, get more use out of your inline by losing all the duct, put the inline closer to light, and lose all the extra ducting, and i bet you get alot cooler temps, your creating drag w all the excess ducting,,,,,,i have same setup, and just let the co2 roll on a timer, and bring in constant fresh air, works fine,,,,,,,peace peebs

 

[guineapig]

i'm sorry if i am missing my brain this morning....but how is the CO2 being exhausted out by the air conditioner? i think i might have an innovative solution for you which combines AC and CO2 flow in a series of tubes which direct cool co2-filled air upwards from the floor of the room through the plants.......and then possibly exhausted by
the vent fans or recycled somehow.......there is a brand new ed rosenthal article
which talks about this concept.......

i feel that more attention should be paid to the "indoor atmosphere and microclimate".....it is more important than many people realize.....

-kind regards from yer pal the guineapig

 

[AppleFarmer]

If you notice GP there is an exhaust at the back of the Ac...its taking some of the air from inside and running it past the compressor to expel the heat it creates out of the room.
What really started this whole dilemia for me was when I was testing out the room and went ontop of it to check the exhaust for the lights and the ac...the ac exhaust was really blowing the air out. I was like...Fuck!
Now here I am...
af

 

[irie-i]

perfect bitches what are your yeilds? are you exhausting?

 

[Guest]

hers a few thoughts... oh ya a/c in pic 95 bucks. i bumped my ppms up can run arround 80-83, a/c even has remote!

 

[AppleFarmer]

If it were only that easy...I can't bring myself to put a hole in the wall...it would kill my stealth.
It is the easiest solution though.
peace
Af