<V>2.0 C02 Room - Floor Plan and Pics

[yukino_asano]

Hello,

finally figured out how to get the best of both worlds without having an outrageous amount of ducting

the best of both worlds being.

c02 injection during lights on and in out air during lights off.

wanted to share so hopefully will help others out in understanding how controlled enviroment agriculture aka a sealed room works


started with in and out air to control temps.

I now been using c02 with a air conditioner in my grow room and saw an excellent improvement.

Made a new floor plan and been implementing some changes.

Since I started with in and out air I left my carbon filter and exhuast fan in place. This is usefull for for exhuasting air when the lights are off.

I also added a y to the ducting for my hoods, and then added a motorized duct damper. This in combination with other duct dampers with allow the air ducting circuit to also provide air flow at night time when I am not venting the hoods.

this way you get a sealed room with ac controlled temps when lights are on then when the lights are off the exhuast fan is taking air in via the hood circuit.

well here are some pics to help explain.

the floor plan to help you get a bird eye view of what is going on. (please ignore carbon filter after exiting hoods. isnt needed with well sealed hoods)

sentinel controller, it "sniffs" the amount of c02 in the room and controls the tanks

Duct damper: this prevents c02 from being wasted via the duct work, see floor plan menu for placement of duct dampers.
open closed dampers pics

Air intake

carbon scrubber and dehumidifier

Air conditioner (18,000 btu window unit set to recirculate, on 24/7)

motorized duct damper, this is on a timer. opens while lights are off.

few more pics of different views








so please share any info or questions.

looking forward to going into flower with this new setup

peace

[B]-YuKINO[/B]

 

[hazy]

is that ac blowing through your hoods?

 

[yukino_asano]

is that ac blowing through your hoods?

no, hoods have there own circuit. Air comes in from the outside on one side of the room then is exhuasted on the other side of the room.

I guess i shoulda have explained the ducting coming off the ac.

the ac is ducted to different parts of the top of the room.

this helps distribute the cold air with the hot air. (since hot air rises)

This also help to get the cold air away from the thermostat sensor and allows the room to run a little hotter.

Hope that helps.

Thanks for visiting.

 

[mikecar312]

you use 1 6" vortex to cool 4 hoods? that looks like a lot of ducting. do you feel that its enough?

also, that a/c ducting works well for you?

 

[yukino_asano]

you use 1 6" vortex to cool 4 hoods? that looks like a lot of ducting. do you feel that its enough?

also, that a/c ducting works well for you?

Thanks for asking.

probably not optimal, but it works for now. Will probably eventually add one more 6" to cool the hoods.

Due to my overkill AC, My temps are fine with one fan, but will probably cooler with 2 fans. ( I could use it a little hotter!!)

This setup was all working with 4" ducting. Now I have upgraded to 6" with better sealed hoods. Now ac runs on lower setting.

On another room.

Was setup with one fan exhuasting 4-600's, then ac didnt arrive in time and had some plants in the room. Temps were getting too high.

Added a 2nd exuast fan for the hoods and that lowered the temps.

therefore determining it was optimal to have 2 exhaust fans for the hoods.

Length and shape of ducting also plays a part in this.

::::::::::::::::::::::::::::::::
yes the ac ducting works for a few things.

Please note: it needs holes if it goes upwards (case cant be seen in photos)
without holes in the ducting there was moisture buildup due to condensation.

The heat from the hoods combined with the cold air was creating moisture.

I then drilled some holes in the ducting.

The other factors it is helping with is cold air blowing directly on the plants.

If the AC is facing the plants directly it freezes them. Not good!

The goal is to have consistent temps everywhere in the room

The cold air also isn't blowing directly on the AC;'s temp sensor and that allows me to run slightly warmer temps and the ac isnt working as hard.

:::::::::::::::::::::::::::::::::::::::::::

Would not want to steer anyone wrong with not enough fans for there hoods.
Can always add a 2nd one if it is too hot.

i like to "dry run" the room then determine if more is needed.

-YuKINO

 

[GroTreesAllDay]

looks like 2 20 lb co2 tanks??? How long does it take to burn through each tank? and what ppm's are you trying to maintain on the sensor??

 

[clowntown]

 

[yukino_asano]

looks like 2 20 lb co2 tanks??? How long does it take to burn through each tank? and what ppm's are you trying to maintain on the sensor??

yes 2 - 20 lb tanks

Well how long the tanks lasts:

depends on a few things

size of plants
ppm I am keeping

at 1500 ppm takes about a week for a tank.

I keep 800-1000 ppm in veg, then go up to 1500 in flower.

 

[DiscoBiscuits]

Hey man very interested in setting up a sealed grow for my next round and had a couple questions for you. Do you feel you really need the air exchange at night? I thought that was the whole point of a sealed room to keep outside air and pathogens out, and I thought exchanging air wasn't necessary with CO2 supplementation?

I love the set up tho! especially those duct dampers; heh may incorporate some of those just for shits and giggles!

 

[yukino_asano]

Hey man very interested in setting up a sealed grow for my next round and had a couple questions for you. Do you feel you really need the air exchange at night? I thought that was the whole point of a sealed room to keep outside air and pathogens out, and I thought exchanging air wasn't necessary with CO2 supplementation?

I love the set up tho! especially those duct dampers; heh may incorporate some of those just for shits and giggles!

Well you can get away with out having it. I feel it is helpfull for optimal plant performance and more control over the enviroment.

When the lights go off there isn't as much heat to make the ac work to remove moisture.

You may need an extra de-humdifier during night time.

Yes exchanging air is not nessecary with c02 supplementation.

But then lights are off, there isnt any c02 supplementation and exchanging air is beneficial.

The extra circuit is also usefull if you have a heat issue.

You can open the intake and exhuast along with ac for more control.

The entire room is technically still sealed because there is a hepa filter on the intake. That way still get the benefits of as sealed room.

You can build a sealed room and add duct dampers later.

I did a few runs without the intake exhuast and did fine.


Hope that helps.

-Peace

 

[DiscoBiscuits]

Awesome and I see your point. How does your fan, the one thatcontinually recirculates thru the carbon filter and emergency exhaust, with tthe duct damper work when it's closed i don't see how it's exhasusting back into the room without a lotta backpressure ....... Also any advice on making that ac truly sealed so it doesn't suck air or air flow out seeming a lot of people having problems with that...

 

[yukino_asano]

Awesome and I see your point. How does your fan, the one thatcontinually recirculates thru the carbon filter and emergency exhaust, with tthe duct damper work when it's closed i don't see how it's exhasusting back into the room without a lotta backpressure ....... Also any advice on making that ac truly sealed so it doesn't suck air or air flow out seeming a lot of people having problems with that...

There are 2 seperate fans with carbon filters

1 fan attached to a carbon filter than scrubs the air. This does not have a back draft damper. This is on 24/7 and cleans the air.

This duct damper ensures the air flows in one direction.

If you view the floor plan, Imagine the air coming in one side of the diagram (hepa filter intake) and being exhuasted out the other side.

Hope that covers your question??

Best option is to get a dual ac, or a mini ductless.

I didn't have enough $$ so I have the window unit for now.

For a window unit.
Get a auto restart ac with re-circulating option.

Take it apart and seal it up, insulate the hoses.

That will help.

Sears sells decent units.

Better to go a little overkill on btu's.

 

[i_score]

now that a grow room, man i wish i had skills like that to make me one grow that was just as tight and clean as yours, of course it tooke alot of efort so ill take my hat of!!
hare you going to grow your plants in coco??
peace

 

[yukino_asano]

now that a grow room, man i wish i had skills like that to make me one grow that was just as tight and clean as yours, of course it tooke alot of efort so ill take my hat of!!
hare you going to grow your plants in coco??
peace

Thanks!

I plant them in the coco... lol j/k

I am not sure what you meant?

Hand water and then Top Drip to Waste in Pots.

The water from the pots drains into the trays, which then drains into a res underneath. In each res is a pump with tubing that runs the waste water into the drain.