the room is about 10 x 25 x 7.5 with 6000w in aircooled hoods (600w bulbs, 2 hoods per 6" fan), ballast are in the room too. i need to bring the room from 85-88 degrees down to 75 degrees. i am in north east USA. will a 24k btu ductless minisplit mounted in the middle of the room work sufficient or should i go with the 36000 BTU model? thanks
Will a DIY MrCool 24,000 BTU minisplit be enough?
- Thread starter jronnn
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bryan oconner
Well-Known Member
these are all air cooled then your good to go . i cool a room that is a 20/20 with 24000 btu and the room is NOT air cooled with 6000 watts and it has a co2 burner . can get it down to 75 when its 90 out side . the 36000 will turn on and off to many times.
damn that things a beast, how do you run your exhaust fan with the a/c running? do you have your exhaust fan on a low setting or timer or something or do you not run an exhaust fan at all because the co2? i dont use c02 so im trying to see how i can make it so my vent doesnt suck all the cold air out but so i can still get fresh airthese are all air cooled then your good to go . i cool a room that is a 20/20 with 24000 btu and the room is NOT air cooled with 6000 watts and it has a co2 burner . can get it down to 75 when its 90 out side . the 36000 will turn on and off to many times.
bryan oconner
Well-Known Member
i am not air cooled . these are open wing reflectors in this room . so the heat from the lights go right into the room with fans blowing on top of the plants to keep the top of the plants cool . i just cut a hole into the wall and threw in a window ac unit .. in your situation you will have to poke 2 holes . one sucking air in from out sided. and the other will push air out . so the air in your room will not change . i just wanted to use open wing reflectors in this room it can easily spread a 1000w to a 4/4 area . actually will cover a 5 foot square i needed. so this is what you will be doing .https://s-media-cache-ak0.pinimg.com/736x/af/28/7b/af287bd55f26104c9b8912669f0c88f3.jpg this is what i am doing .https://theweedscene.com/wp-content/uploads/compact-metal-halide-grow-lights-01.jpg not my plants pictured.
bryan oconner
Well-Known Member
your good 24000. where are you buying this mini split and brand ? you get what you pay for with a mini split . and no matter what if your planning on putting this unit in your self . you will have to hook a vacuum pump to the lines to get out air and moisture its critical .
word i really hope so but thats why i picked this one, someone reccomended it, its specifically made to be a DIY plug n play minisplit. it comes with 25' precharged line... mount it, connect the line and wire it to the electric box and its good to go. i really dont trust myself with the refrigerant and im certainly not spending any extra money to have an hvac guy install oneyour good 24000. where are you buying this mini split and brand ? you get what you pay for with a mini split . and no matter what if your planning on putting this unit in your self . you will have to hook a vacuum pump to the lines to get out air and moisture its critical .
bryan oconner
Well-Known Member
trust me on this . you will have to . have the hvac guy stop over and hook his vacuum pump to the unit . if you dont it will kill the unit ! and void the warranty .
bryan oconner
Well-Known Member
so what model are you set on ? and did you look into the seer ratings ? and noise levels makes a major difference on your e bill
Dr.Nick Riviera
Well-Known Member
so you are running 10, 600 watt air cooled lights,correct? the math is 3500 btu's per 1000 watt air cooled and 4-4500 per open hood, you could do it with a 18000 btu unit, but I would probably get the 24word i really hope so but thats why i picked this one, someone reccomended it, its specifically made to be a DIY plug n play minisplit. it comes with 25' precharged line... mount it, connect the line and wire it to the electric box and its good to go. i really dont trust myself with the refrigerant and im certainly not spending any extra money to have an hvac guy install one
if you get charged lines, no need for a vacuum or hvac guy
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bryan oconner
Well-Known Member
Dr.Nick Riviera
Well-Known Member
sorry dude, i got an HVAC contractors license and over 20 yrs experience. Ideal and others make units charged so YOU DO NOT NEED AN HVAC GUY OR VACUUM. but thanks for your input,derp!!!so the unit is charged the lines do not come attached to the machine already and the indoor unit. there is air in the lines .
bryan oconner
Well-Known Member
i am not a professional hvac for housing . i am a professional in the automotive field . i installed 3 mini split units for my personal self my lines were not charged . i could pull the caps off the lines and blow through them if i wanted . that is why i hooked up my vacuum pump before opening the valves on the unit . i have never seen lines that had freon charged in them thanks for the info dr nick next unit i buy ill look for them to save some work .
the one in the title, MRCOOL DIY 24000 btu. this one here http://www.homedepot.com/p/MRCOOL-DIY-24-000-BTU-2-Ton-Ductless-Mini-Split-Air-Conditioner-and-Heat-Pump-230V-60Hz-DIY-24-HP-230A/207085061?cm_mmc=Shopping|THD|G|0|G-BASE-PLA-D26P-AirCirculation|&gclid=CIaZ4pLg09ECFVSBswodqoYCaQ&gclsrc=aw.dsso what model are you set on ? and did you look into the seer ratings ? and noise levels makes a major difference on your e bill
yes sir and i want to get something extra so it isnt on full blast so the 24k is definitely what im going to go for, i just hope it will still be good in the summer and yes the lines on the MRCOOL come charged alreadyso you are running 10, 600 watt air cooled lights,correct? the math is 3500 btu's per 1000 watt air cooled and 4-4500 per open hood, you could do it with a 18000 btu unit, but I would probably get the 24
if you get charged lines, no need for a vacuum or hvac guy
bryan oconner
Well-Known Member
so are you telling this guy all mini split units lines are charged ? most i have seen are not charged lines ... thanks for your input dr . ...AFAIK . just read your directions they are easy to install .so you are running 10, 600 watt air cooled lights,correct? the math is 3500 btu's per 1000 watt air cooled and 4-4500 per open hood, you could do it with a 18000 btu unit, but I would probably get the 24
if you get charged lines, no need for a vacuum or hvac guy
Dr.Nick Riviera
Well-Known Member
Is your reading comprehension bad too? I said, "if you get a unit with charged lines", he seems to know the difference.so are you telling this guy all mini split units lines are charged ? most i have seen are not charged lines ... thanks for your input dr . ...AFAIK . just read your directions they are easy to install .
if he gets a unit without charged lines, he still can do it himself, he'll just need to buy some tools.