Nummingtons
Well-Known Member
Hello everyone I am having some real heat issues and I'm not sure why anymore. I have a room that is split down the middle by a wall that I built, obviously one side is my flower room and the other a veg and work area. The flower side is the side that I am having issues with as it has much more wattage running though it.
Here is the set up, the room dimensions are 11ft wide, 5.5ft deep, 8ft tall, I have three 1000 watt 8in vented lights, with 800 cfm exhaust fan. There is also a 1000 watt light running in the veg room. all 4 of the lights are exhausted on the same 8in 800 cfm fan, and all air being pulled through the lights is being pulled directly from a portable AC. There is also a 400 cfm exhaust fan in the flower room that exhausts the hot air out of the flower room to the veg room. So to be clear all 4 lights are on the large fan and the air used to cool them comes from the veg room, there is also a 400cfm fan circulating air out of the flower room and pulling air in from the veg room. The 400 is also puling against a large carbon air filter. As noted before the air being pulled through the lights is from a 7000 BTU portable AC, the ducting is taped to the AC so only cold air can come through the lights. There is also a 10000 BTU AC in the flower area, however that is one of the issues we will get to later. I think this basically covers my set up as confusing as it all sounds now that I am reading it lol, if you have any questions post them and ill try to get back to you quick.
The air inlet to the flower room is low about 6in off the ground, the air being pulled out is all being pulled of the top of the room as the air filter is hung from the sealing. All testing that I have done has been late at night thus the coldest part of the day. I also have a fan speed controller on the 400 cfm fan and have tried slowing the speed to try to keep the cool air in the flower room. In other words I have tried all the "no shit" solutions lol, not trying to be a dick just trying to save everyone some typing.
In so far as temp I have no problem keeping my veg room in the mid 70s the flower room is a different story usually running in the low 90, to real high 80s.
So here are my questions, question one is pretty obvious and is this, if any of you have any idea how I can get my flower room under control please, please, please tell me how to do it. The other is a question about my AC units and will be addressed in the fallowing paragraph.
I hope some of you have experience with with potable AC units, I know a window AC would be way better but to my knowledge you cant hook a window AC up to a carbon air filter which would be a problem for me. So here is the issue, as I mentioned before I have two AC units a 7000 and a 10000, however no mater which one I put in my flower room in starts short cycling. At first I thought it was getting back pressure because I have both exhausts running though a T and then out. This is not the issue I ran both AC units in the flower room by them selves with the exhaust running through the wall by its self and both of them short cycled. If you don't know what short cycling is it is when the AC kicks on for just a few minutes but then shuts down for much longer in order to rest effectively making the unit useless. Neither of the units have this problem when they are operating in the veg room.The only thing I can guess is that the room is too small or the negative pressure some how disrupts the unit. If anyone has any idea why this is happening please fill me in.
Thank you all in advance for your help.
Here is the set up, the room dimensions are 11ft wide, 5.5ft deep, 8ft tall, I have three 1000 watt 8in vented lights, with 800 cfm exhaust fan. There is also a 1000 watt light running in the veg room. all 4 of the lights are exhausted on the same 8in 800 cfm fan, and all air being pulled through the lights is being pulled directly from a portable AC. There is also a 400 cfm exhaust fan in the flower room that exhausts the hot air out of the flower room to the veg room. So to be clear all 4 lights are on the large fan and the air used to cool them comes from the veg room, there is also a 400cfm fan circulating air out of the flower room and pulling air in from the veg room. The 400 is also puling against a large carbon air filter. As noted before the air being pulled through the lights is from a 7000 BTU portable AC, the ducting is taped to the AC so only cold air can come through the lights. There is also a 10000 BTU AC in the flower area, however that is one of the issues we will get to later. I think this basically covers my set up as confusing as it all sounds now that I am reading it lol, if you have any questions post them and ill try to get back to you quick.
The air inlet to the flower room is low about 6in off the ground, the air being pulled out is all being pulled of the top of the room as the air filter is hung from the sealing. All testing that I have done has been late at night thus the coldest part of the day. I also have a fan speed controller on the 400 cfm fan and have tried slowing the speed to try to keep the cool air in the flower room. In other words I have tried all the "no shit" solutions lol, not trying to be a dick just trying to save everyone some typing.
In so far as temp I have no problem keeping my veg room in the mid 70s the flower room is a different story usually running in the low 90, to real high 80s.
So here are my questions, question one is pretty obvious and is this, if any of you have any idea how I can get my flower room under control please, please, please tell me how to do it. The other is a question about my AC units and will be addressed in the fallowing paragraph.
I hope some of you have experience with with potable AC units, I know a window AC would be way better but to my knowledge you cant hook a window AC up to a carbon air filter which would be a problem for me. So here is the issue, as I mentioned before I have two AC units a 7000 and a 10000, however no mater which one I put in my flower room in starts short cycling. At first I thought it was getting back pressure because I have both exhausts running though a T and then out. This is not the issue I ran both AC units in the flower room by them selves with the exhaust running through the wall by its self and both of them short cycled. If you don't know what short cycling is it is when the AC kicks on for just a few minutes but then shuts down for much longer in order to rest effectively making the unit useless. Neither of the units have this problem when they are operating in the veg room.The only thing I can guess is that the room is too small or the negative pressure some how disrupts the unit. If anyone has any idea why this is happening please fill me in.
Thank you all in advance for your help.
