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30A DELUXE OVER TEMP

I live in florida, you all know the temperature here is closer to hell than any other place. So even in my garage it gets hot especially the Controller, and it is only drawing 13.4 amps per leg on 220 volts.

Is it possible to add a small fan?

and what is the best place to put it and where would it be the air intake?

The only problem it will no longer be water proof.


Btw.... even with power applied but not charging, openevse indicates 65C.... and my Flir shows the display driver cooking, so my guess is the temp is real and the chip is running hot... we'll see.

Yes, it is likely the IO expander that controls the display is the issue. The temperature sensor is on the display module as well, it is part of the RTC clock chip. The sensor and IO chip are just a few mm from one another. 

True. My thermal photo shows it being hot,hot,hot!

What is the maximum temperatur the Open V4 can tolerate? usually mine stay around 32 c (not charging), but some time with a hot day, rise to 65c (charging at 26amp) this is normal?


If it is too hot, they reduce the power itself?

The OpenEVSE v4 controller will tolerate temperatures to about 90C before its power supplies shuts down (internal PS temperature of 142C).


Temperature monitoring and throttling will slow down charging at 65C and shutdown if temperature exceeds 72C. 


On my own "Advanced Series" station (see graphs below) at 32A (7.68kw) my normal temperature rise is 16C over the starting enclosure temperature. It is very hot where I live, my enclosure temperatures during the hottest months of the summer run from 34C - 44C.




WELL... some VERY good news to report!
I received the new display today, Thursday 8-9.
My charger has been on all day with an ambient temp of about 100F, and all closed up.
The charger was reporting about 60C just sitting there asleep, so I used this as a baseline reading.
I changed the display, using extremely careful ESD procedures, and powered it up.
First, I looked at the chip with my Flir, and NO SIGNS OF HOT SPOTS!!!!!
This was a GREAT result!
Then I closed it up and powered it up in the same location, and after about 30 minutes the temp was ONLY 33C!!!!
This is more like it, and I thank you for helping out!!!
It's nice when things work out!
I am going to leave it on like I normally do, and see what the temperature stabilizes at, although I am sure it won't be NEAR 60C.
I did take a look with my Flir after it had been on a while, and the chip was about 95F (35C), ambient temp, with NO hot spots!

 

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