Budley Doright
Well-Known Member
Try running the fan at a lower speed. I don't get how humidity can go higher with AC on?? Slower fan will dehumidify more.
The hot weather
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Big smo
Well-Known Member
Not sure why this made a difference but I switched my Ac from auto to cool and the water is now dumping out of the back. Humidity hit 86% then the Ac kicked on and it lowered it to 74%. Still high but the dehumidifier will need to run a lot less and then the Ac will too. My rooms pretty big and it's filled with plants. Currently 30 and 13 are a few feet tall. I'm watering 30 gallons every 2 days so the high humidity makes sense.
Budley Doright
Well-Known Member
Typically dry mode is just a lower fan setting and it is allowed to over cool. You may have issues with your AC, possibly a charge issue. If you run it on dry mode again check the coil behind the filter and see if there is ice.
Big smo
Well-Known Member
There isn't any ice but there is water on it. Out of the back its dumping a lot of water. Could it be that there is to much plant volume inside the room?
Big smo
Well-Known Member
I'm sitting here watching the levels change. Humidity hit 80% and temps 85 then the Ac kicks in and lowers the humidity to 71%and temps to 80 then it shuts off. Then both numbers raise again. So the Ac is doing something but just seems like not enough. I'm also running co2 that's why temps are a little on the high side but I'm struggling without a dehumidifier. Once I run that the Ac seems to run non stop.
Budley Doright
Well-Known Member
How long is the run time between cycles?
Budley Doright
Well-Known Member
It sounds like your AC is actually a tad large for your room. The longer the cycle the more humidity removed and yours isn't on long.is your blower on low?
Big smo
Well-Known Member
It was thanks to the advice here. Now it's on dry mode. I went out back to check and see if I could see any water dripping and noticed the fan was in about 1/2" of water so I drilled a couple small holes and pitched it a little more. I could see the water running out from the front section. Again I dropped the temp a few degrees to hopefully allow it to run a little longer. Sure it's more cost effective then running both.
ThaMagnificent
Well-Known Member
I got a 5x9 tent in my basement and my humidity is my big problem too with leds. My t5 veg tent is 50s lights on but jumps up to high 60s lights off. I bought a 70pint dehumid. Should i stick it inside the flower tent or leave it outside?
Budley Doright
Well-Known Member
It's not going to do much outside the tent.
Budley Doright
Well-Known Member
The water was sitting in the outside part? Lots of units use that water to help cool the condenser coil by splashing it against it. If you have water dripping inside it just needs to be tilted slightly. Keep in mind that dry mode will actually allow for 3-4 degrees of over cool as well, and again it's just slowing the fan down and longer cycles. The dehumidifier is adding heat as well, great for heating in winter though as it's cheaper per btu than resistive heat. This is why I shut the thing down in the summer and head outside lol. I'm a refrig. Mechanic and even I threw in the towel lol. I run chilled water but have no AC, it would look rather suspicious running one in a garden shed lol.
Big smo
Well-Known Member
I really appreciate your help. Everything makes perfect sense and was a huge help. Unfortunately I just started indoor growing a few months ago and need to push through to get some of this massive investment back. I'm also in a shed but this place is well equipped 20x20 100amp service, running water and even a tile floor. I have read tons on humidity and think I'll push my luck at the high numbers until late flower. It's humid but it fluctuates and is in a very clean environment.
Thc247
Well-Known Member
always run your lights through the night and bring cold air in from out side this is what helps me keep my temps within perfect range if i have lights on during the hot parts of the day i can really generate some heat in there however i havnt had temps above 28 for a while now as i use a controller
Big smo
Well-Known Member
In the summer running outdoor air is a little to warm here even without lights. I'm running some autos now and shut my lights down between 12-5 pm. Seems to be helping a ton. After summer I'll ditch the co2 and do the outdoor air again.
Big smo
Well-Known Member
Yes the water was sitting in the outside of the Ac. It was actually interfering with the fan in the back of the unit. That's why I drilled the hole and once I did I noticed the watering then funneling down towards the back. It seems like it was being held up. I will have to check the size when I get home and also check if there is a visible seer number. What would you recommend for a 10x20 space. I'm running 18 Cree cobs. 600 watts of Cree monos, 315 ceramic, and some t5's. East coast so the summer is warm. Ge at depot doesn't have a dry mode but the shit lg does. 179-239$ 6000 and 8000 btu
Budley Doright
Well-Known Member
The fan splashes the water up on to the coil on some units, mine does that. As for sizing I have no clue, I wouldn't worry about the dry mode thing, again it's just low speed fan with over cool. Each watt produces appr. 3.14 btu's depending on efficeincy but no ideal about COB? I don't deal with window units other than my bedroom lol. My ductless is modulating as most are so runs long and slow, ramping up as required. Try googling sizing app for grow room perhaps
. Sorry if you said it but what size u have now? SEER is just the effiency rating not size btw. But yes oversizing is sometimes worse than under sizing for short cycling and humidity control.