Vegan4life
Well-Known Member
What silencer do you have?
Fan controllers and variacs
- Thread starter Maximus the green
- Start date
Vegan4life
Well-Known Member
My exhaust is located on ceiling of my grow shed, Carbon filter, exhaust fan, silencer then a 90 degree turn up and through the roof. Pic of silencer that I have below
The input at the top of my tent seems to be the loudest. Inside actually like the sound needs a s turn or something somewhere.
hum from fan or controller ? controller good. fan bad. - sort of. never fan under any circumstance.
dunno what you mean by noisy airflow. only thing that can cause that is real shitty exhaust vent tubing with a lot of obstruction. that is what air flow noise is, other than the equipment. if so, clean up your venting.
edit: i also hard mount my fans but isolate them. hard mounting usually translates in to more vibration being broadcast, which generally leads to a noisier situation. i hard mount and still have no real issues.
shop for a decent matched fan with controller. stick with a good brand name. something strikes me as off. not sure i trust your seller.
- Thread starter
- #25
Maximus the green
420 Member
I'm not sureWhat silencer do you have?
Just looks metallic in colour, no real distinguishing feature. Cost me £45
I will take photos very soon and upload it all
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- #26
Maximus the green
420 Member
Yes it's the fan that's sort of buzzing or vibrating like u say, I have hung it with the adjustable carabena cord (not sure of the true name).
I have read with these SMS smart controllers u do get a sort of hum. I thought this was normal with these. I hope this isn't dangerous?!
Next time I will surely go for higher quality but I'm stuck with this for the time being
well it's not great. i can't judge if it is correct for your fan type and controller or not. as a rule if it's loud enough that it concerns you, then look for another solution. buzzing is usually a sound produced by resistance. resistance creates heat.
ideally you want a controller that ultimately changes the pitch of sound the fan makes, not adds a new one.
ideally you want a controller that ultimately changes the pitch of sound the fan makes, not adds a new one.
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- #28
Maximus the green
420 Member
Yes I would of thought that too. The buzzing doesnt sound like it's doing the fan any good. This is what I was hoping the variac would do. With that there is no hum, but no variation in fan speed either
what type of a fan do you have ?
- Thread starter
- #30
Maximus the green
420 Member
It's an RVK fan with SMS controller on but I've hard wired the fan through the variac. I had to cut the plug off of the kettle lead to wire into it. It's the fantronix 1.5 amp variac
lol. i meant type of motor and fan design. squirrel, impeller, rotator etc.. there are numerous fan types. it also helps to know if the fan motor runs needle or roller bearings, or is a brushless etc.. i'm not familiar with the brand.
to short it out you want an impeller design running rollers. they lend themselves to a control the best. i run both types.
this fan is in my veg space
impeller design, roller bearing, has a great fan control - quiet even under control.
this one is mounted in my flower space
much bigger. will move more air, cage design, needle bearing. we run this one full out and don't bother with a controller. i could do it, but the fan design is not the best for it.
- Thread starter
- #32
Maximus the green
420 Member
Oh ok lollol. i meant type of motor and fan design. squirrel, impeller, rotator etc.. there are numerous fan types. it also helps to know if the fan motor runs needle or roller bearings, or is a brushless etc.. i'm not familiar with the brand.
to short it out you want an impeller design running rollers. they lend themselves to a control the best. i run both types.
this fan is in my veg space
impeller design, roller bearing, has a great fan control - quiet even under control.
this one is mounted in my flower space
much bigger. will move more air, cage design, needle bearing. we run this one full out and don't bother with a controller. i could do it, but the fan design is not the best for it.
I will have to get back to u on that one Haha
Your setup looks great.
I dream of the day I can dedicate separate rooms to mother, veg and flower....
It's on the cards for me I'm sure but for now my little tent will have to do lol
But I will look into the details of what I have as I am very new to all this
I really appreciate the help aswell it's awesome!!
I've defo come to the right place
i dream of the day i can do it under one address ..
i have very interesting motoring experiences at some time during my grows ....
both of those fans were online purchases. stick with a decent brand name that comes with a controller, and you'll be fine. for this app you want good gear.
with some research, knowledge, and experience, you could diy a perfectly acceptable solution. with a guess, some wire cutters, and the hydro dude's advice, you could burn the block and be looking at 15 in the klink.
also there are two general types of control for a fan. do not mix. they run on different principles, and have to be matched to the type of fan motor.
- Thread starter
- #35
Maximus the green
420 Member
I checked the fan and it isn't hot at all to the touchi dream of the day i can do it under one address ..
i have very interesting motoring experiences at some time during my grows ....
both of those fans were online purchases. stick with a decent brand name that comes with a controller, and you'll be fine. for this app you want good gear.
with some research, knowledge, and experience, you could diy a perfectly acceptable solution. with a guess, some wire cutters, and the hydro dude's advice, you could burn the block and be looking at 15 in the klink.
Would it be hot to the touch if it was a danger do u think??
it's partly a function of time.
keep an eye on it. what you've done is add a voltage transformer to a piece of equipment that did not come equipped with it. so the fan is asking for A and you are delivering B
most controllers are a potentiometer transformer, with a linear potentiometer, which control a specific type of motor, be it fan or otherwise.
bottom line - the more noise, the more you take your chances.
edit: if you like safe - buy a fan that comes matched with a controller. otherwise run the fan full out.
keep an eye on it. what you've done is add a voltage transformer to a piece of equipment that did not come equipped with it. so the fan is asking for A and you are delivering B
most controllers are a potentiometer transformer, with a linear potentiometer, which control a specific type of motor, be it fan or otherwise.
bottom line - the more noise, the more you take your chances.
edit: if you like safe - buy a fan that comes matched with a controller. otherwise run the fan full out.
Is there a schematic diagram on the controller you can post a pic of?
- Thread starter
- #38
Maximus the green
420 Member
- Thread starter
- #39
Maximus the green
420 Member
These are the fan and the controller I have at the moment
The hum is too load to crank it up but i dont think its overly bad. I think i just need to find a new location if I'm honest lol
The hum is too load to crank it up but i dont think its overly bad. I think i just need to find a new location if I'm honest lol
