Please Help!! Question about Heat removal from a "Sealed" room

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Originally Posted by GaGrown

Being an HVAC, Master sheetmetal mechanic. I have seen 1st hand that an air conditioner in a window will raise humidity. Hot and cold air meeting you get condensation on the walls and anything metal or plastic.Making the risk higher to aquire an airborne mold or mildew. The best senario would be to use only the dehumidifier and draw air into your room with a passive vent with a backdraft damper.You keep your sealed room aspect. Use a scrubber and a dehumidifier.

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I copied the following from:
How air conditioners work
There are three main kinds of air conditioning systems. Summer air conditioning will clean, cool, and get rid of moisture from the air. Winter air conditioning will clean, heat, and add moisture to the air. Year-round air conditioning will clean and control the temperature and the amount of moisture in the air throughout the year.

With a sealed room, it will (or should) be only "summertime" in there while the lights are on.

keylime

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Originally Posted by keylime

I copied the following from:
How air conditioners work
There are three main kinds of air conditioning systems. Summer air conditioning will clean, cool, and get rid of moisture from the air. Winter air conditioning will clean, heat, and add moisture to the air. Year-round air conditioning will clean and control the temperature and the amount of moisture in the air throughout the year.

With a sealed room, it will (or should) be only "summertime" in there while the lights are on.

keylime

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But,if you use an air conditioner in the winter it won't work that way! It works in an opposite fashion. Esspecially when there is an HID lamp fixture in operation. Just think about it... When you walk outside,in winter and breathe and blow your breath out you create condensation in the air. Same thing happens on a smaller scale but moisture still accumulates.

My room is a sealed room too. Not using co2 at the moment,but it is ready for it to be used..

You don't need an air conditioner in the winter. Air conditioning will only be used when it gets too warm in the room.

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Originally Posted by keylime

You don't need an air conditioner in the winter. Air conditioning will only be used when it gets too warm in the room.

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That would be why you have an exhaust fan and a passive intake vent with a damper. Your not understanding the principal of this. I wish I could show you hands on what would happen. I have seen this with diasterous problems.

I'm saying this cause you said in the quote "year-round air conditioning". Just letting ya know,what I know! :thumbsup: Just trying to be of some help to you as well as others..

Peace! My Brutha!:smokin:

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Originally Posted by GaGrown

That would be why you have an exhaust fan and a passive intake vent with a damper. Your not understanding the principal of this. I wish I could show you hands on what would happen. I have seen this with diasterous problems.
I'm saying this cause you said in the quote "year-round air conditioning". Just letting ya know,what I know! :thumbsup: Just trying to be of some help to you as well as others..
Peace! My Brutha!:smokin:

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I"m not trying to rub anyone in the wrong way. A sealed room means exactly that. There are no vents ...intake or exhaust. So all you have the the air inside that room (more or less... There is always some heatloss and heatgain) and you want to keep a certain temperature and humidity. The CO2 could come on only if the conditions are perfect.... that is temp is between 73 and 79, humidity is below whatever the dehumidifier is set at. If its too hot in the room, say its 80F, the A/C goes on, and lets say it goes off at 72F. The dehumidifier can run right alongside the A/C and get the humidity out even if the temp is below 72F. IF its above 72F and the humidity is high, then both will run until one shuts off. I suppose there are many ways to skin a cat, but I know for a fact that this will work for a sealed room.

keylime

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Originally Posted by keylime

I"m not trying to rub anyone in the wrong way. A sealed room means exactly that. There are no vents ...intake or exhaust. So all you have the the air inside that room (more or less... There is always some heatloss and heatgain) and you want to keep a certain temperature and humidity. The CO2 could come on only if the conditions are perfect.... that is temp is between 73 and 79, humidity is below whatever the dehumidifier is set at. If its too hot in the room, say its 80F, the A/C goes on, and lets say it goes off at 72F. The dehumidifier can run right alongside the A/C and get the humidity out even if the temp is below 72F. IF its above 72F and the humidity is high, then both will run until one shuts off. I suppose there are many ways to skin a cat, but I know for a fact that this will work for a sealed room.

keylime

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kelime,
You ain't rubbin' me no kinda way! This is a discussion amongst adults..

That would work for a sealed room! But alot is overkill.. With the damper being on the intake you won't compromise anything. Air scrubber on when co2 ain't.Damper opens and freshens the air, lowers the temps and humidity.You have to take into consideration that the hood being used is a sealed one. You then cool your lamp for the whole time the lights are on.You add 300 ppm of co2 by using a passive intake,not your co2 supply.scrubber goes off and co2 emits.A humidistat can be used inline on the scrubber,too.. That would make the scrubber come on when the humidity raises.Set it to what ever ya want.Tryin' to keep it all simple.:thumbsup:

Peace! My Brutha!