Upgraded to 14,000BTU A/C but still can't get it down to 80F??!

Add an extra 720 CFM fan to exhaust the heat and add the same for intake. I have 2 1OOO HPS Lights in an 8x8x7 gorilla tent. I use no humidifier nor AC.. Bring intake air from a cold room.
 

ajeezy2012

Active Member
Add an extra 720 CFM fan to exhaust the heat and add the same for intake. I have 2 1OOO HPS Lights in an 8x8x7 gorilla tent. I use no humidifier nor AC.. Bring intake air from a cold room.
This room has no intake, and I have 2 6" 400CFM fans on the hood's. Shouldn't it be enough?
 

MrMeanGreen

Active Member
Add an extra 720 CFM fan to exhaust the heat and add the same for intake. I have 2 1OOO HPS Lights in an 8x8x7 gorilla tent. I use no humidifier nor AC.. Bring intake air from a cold room.
What this guy said. Increase your CFM output. Your hoods should be cool to touch and be able to touch the glass without burning. You need to pull that heat away faster from ya bulbs. Also look at your ducting, I find cheap ducting is shite, air leaks and smells.
 

ajeezy2012

Active Member
What this guy said. Increase your CFM output. Your hoods should be cool to touch and be able to touch the glass without burning. You need to pull that heat away faster from ya bulbs. Also look at your ducting, I find cheap ducting is shite, air leaks and smells.
Hmmm..I might have to. I put my hand under the glass and it's too hot. I just called these guys, I spoke to a technical rep, but I didn't get much help at all. The only thing he told me was it takes 4 hours minimum to reach the targeted temp. I just had it on for 3 hours, with lights off, and the temp so far is only at 70.5. I asked him, if my A/C shuts off, then turns back on 15 minutes later, will it have to rinse and repeat for 4 hours before cooling to my assigned temp on the A/C? He said, no, it should cool as cold as you left it last time, which doesn't make sense to me.

Edit:

I just made sure the air-conditioner is working properly, even though it states 64F, the wind blowing out is about 54F...Hrmm, could it be a problem with my CHHC-4 sensor?
 

ajeezy2012

Active Member
Hmmm..I might have to. I put my hand under the glass and it's too hot. I just called these guys, I spoke to a technical rep, but I didn't get much help at all. The only thing he told me was it takes 4 hours minimum to reach the targeted temp. I just had it on for 3 hours, with lights off, and the temp so far is only at 70.5. I asked him, if my A/C shuts off, then turns back on 15 minutes later, will it have to rinse and repeat for 4 hours before cooling to my assigned temp on the A/C? He said, no, it should cool as cold as you left it last time, which doesn't make sense to me.

Edit:

I just made sure the air-conditioner is working properly, even though it states 64F, the wind blowing out is about 54F...Hrmm, could it be a problem with my CHHC-4 sensor?

DING DING DING! A problem with the CHHC-4 Sensor! I had to place it in a different spot than where I had originally put it. Now, temps can be dropped down to 72F with lights on, cooled within 5 minutes from 76. Right now I am running temps at 81-84 after a bit of research and it has no problem bringing it down. I guess I just had to have the sensor in a place with more airflow around it. Damn, I feel like an idiot.

However, much appreciated for everyone's help. I felt a lone with my troubles, but I'm glad you guys were here to help. Thanks again.
 

sogoodtobuy

New Member
Are you using a window unit, portable unit or split? BTU ratings are typically the same, however; insulation and other factors can cause strain on smaller compressors. If it's a permanent setup, you may want to consider a split air conditioner.
 

xxENOCHxx

Member
Minimize the bends in ur ducting as much as possible.. make sure your fans are on the exhaust side ! inline fans are much better at pulling air then pushing it.. Also crazzy thought .. some ducting is actually directional.. did u check that? and if ur ducting is traveling a long distance you may consider a booster fan.. or if u have the $$ larger inline fan
 

Impman

Well-Known Member
I need a split AC but installation is a huge bitch, then wiring it i a bigger bitch. Tchnically you need to be up to code and i sure as shit cant have a AC service up n my grow
 

ajeezy2012

Active Member
Minimize the bends in ur ducting as much as possible.. make sure your fans are on the exhaust side ! inline fans are much better at pulling air then pushing it.. Also crazzy thought .. some ducting is actually directional.. did u check that? and if ur ducting is traveling a long distance you may consider a booster fan.. or if u have the $$ larger inline fan
Ok, thanks for the help big guy.
 

kinddiesel

Well-Known Member
if you have a 8 inch vented hood with a 1 thousand watt that ac would keep up no problem. I know because have 16 of those running and my 3 ac units keep up no problem using co2 water cooled unit, 15 thous btu each unit, and 6 fans, my space is 40 by 40
 

InsaneMJ

Well-Known Member
If you have a portable ac unit you'll need an intake with your room. Because the portables alot of the time only have a single hose for exhaust which causes negative pressure. In turn makes the machine work harder to pump out the air. An thus making it harder to cool down. I realized this early and went with a window unit and stuck it in the wall of my room and caulked it closed. The portables are good as long as its a dual or triple hose unit. You'll be able to see what I'm talkin about if your running a tent because your walls be sucked inward.
 

ajeezy2012

Active Member
If you have a portable ac unit you'll need an intake with your room. Because the portables alot of the time only have a single hose for exhaust which causes negative pressure. In turn makes the machine work harder to pump out the air. An thus making it harder to cool down. I realized this early and went with a window unit and stuck it in the wall of my room and caulked it closed. The portables are good as long as its a dual or triple hose unit. You'll be able to see what I'm talkin about if your running a tent because your walls be sucked inward.
I see this all the time..I know exactly what you're talking about. However, would it be ok to just roll down the zippers at the top to the side a little?

Also, here's the thing guys. I noticed my A/C now is only coming out at 76F. I stated earlier it was 55F with the hygrometer I had, but now the hygrometer is reading at 77F. It still cools down, but I know my A/C has a overheat function I believe and lately my A/C has been having to shut on/off every 4-5 mins continuously for 12 hours, and maybe double the timing for the night cycle. Should I raise the deadband on my CHHC-4 to a greater number that way my A/C is getting a longer rest period? I hope I didn't blow my compressor or anything lol...doubt it, since it has an overheat function I'm guessing it shuts off the motor and compressor when things get too hot.

An ideas?
 
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