4" vivosun to ac infinity T4 upgrade not working out

tckfui

tckfui

Well-Known Member
Hey guys,
I just replaced my old vivosun 4in inline fan with an ac infinty t4. Since, on paper its the same strength (about 200cfm) and half the noise (28 vs 46 db something like that). I always kept the vivosun below 50% on the dial. temps were stable at 80. I have the ac infinity now setup at 100% and Temps are high 80s and the noise is so loud!



Any idea why this would be? Makes no sense to me. Lung room Temps are consistent 68-72.
Thanks!
 
tckfui

tckfui

Well-Known Member
Reached out to them. Sounds like this fan may have less HP then the vivosun. I have 2 carbon scrubbers for noise purposes which they said each reduce efficiency by 60%. So makes perfect sense why my Temps are up cfm is way down. Recommended I get the 6 inch. Classic upsale!..upscale!... and effective haha
 
tckfui

tckfui

Well-Known Member
dancouture said:
I was saying very loud at 100% and ventilation eficiency at 50-70% compared to the Vivosun fan, but

the reviews online are very good ?.
Click to expand...
Did you end up just sending it back?
I think I'm going to order the t6 and see how that goes. I'm adding a second tent over the weekend so I can do a side by side of the vivosun 4" vs the t6. Also downloaded a db meter (no idea of accuracy) but the vivosun is about 39 db outside the tent and the t4 was about 51 with my setup.
 
tckfui

tckfui

Well-Known Member
Ended up ordering the t6 with their silencer and filter.
Thinking once the flower tent is done I'll hook the t6 up to both of them. In the meantime I'll have the t6 t6 compare to the vivosun 4"
 
D

dancouture

Active Member
I did not returned it, I am using in my Veg. tent/Drying tent that way I can control the amount of ventilation for drynig buds and use it at low speed witch has less noise, but I am not happy with the purchase.
 
tckfui

tckfui

Well-Known Member
Just want to update this. Hate open ended threads
The t6 worked out really well paired with the smart controller! I bought the package deal which came with their old controller which is pretty infuriating since buying both seperate would have only been 10 more...
Most of the time it runs on speed 3 and maxes out at 6. Super quiet when on the low setting.. heck even on the high setting. I wrapped all the ducts with a blanket to help keep things quiet and that really helps a lot! Highly recommended.
I got a new tent from them, the 8x4 only because it had the mounting part for the controller. In hind site I would have gone with a different brand since I never use the controller, just the app. Wish the tent had side bars, but oh well. Was a great deal
I did end up getting a 4x4x6 wye fitting for the fan and ducting it to 2 tents. Works out pretty great. Takes a few days of tuning to get the min setting right for the veg tent (since only 1 tent can have the probe). But I'd put the probe in the flower tent and set the min for the veg tent.

I'd definitely recommend these fans but also definitely recommend over sizing them ad they seem to lack torque compared to other inline fans I've used
 
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