MPI Working Temperature

After a year using an MPP Solar MPI 4K inverter recently I've installed the solar panels so I'm producing solar electricity since few days, today I notice that the Maximum temperature component is 52 centigrades while charging at 17A and a load level of 10%, and the inner temperature is only 31, never seen so high temperature the time I've use it without charging from solar so I supose it must be some part of the DC/DC converter.

Is this temperature normal? Anyone using this devices can tell me the working temperature its inverter reaches.

Regards

The manual states 0 degrees to 55 degrees Celcius.

Mine runs at 50 degrees right now.

Its pretty normal. Just make sure you have good enough ventilation around the inverter.

SiverNodashi said:

The manual states 0 degrees to 55 degrees Celcius.

Mine runs at 50 degrees right now.

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Hi, I've checked the manualand 55 is the maximumoperating temperature of the environment.

daromer said:

Its pretty normal. Just make sure you have good enough ventilation around the inverter.

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Yes a lot of free space around and the garage where is located is on a basement of 50 m2 and 4 m high, last summer whe had an historical maximum temperature of 47 in the shadow, bad for the panels , but the basement is usually cool.

Thank you both

Now that I have rapsv8 running, I added some graph and I'm really worried about the temperature, the MPI is programmed to not run the fans while charging the battery as you can see at 15:20 when the inverter has to take some power from battery and the fans starts to work the temperature decreased drastically.


I supose mpp solar knows what they do, but having some components running at 60C can not be good.

The unit is installed in a semi basement where no more than 30C is reached today.

Should I install some aditional fan for the months of July and August? or a way to start internal fans manually or by termostat? I hope the guys at mpp solar had included some overtemperature rutine in the firmware, if they did it, there is a trigger level too high.

Regards

Wow, 60C. Add a small 12V computer power supply size fan to give some additional air circulation and that should drop 10C from your readings... just run it 24x7 as they are only 2-5W and save on the hassle of external control. With no fan the convection airflow will be very little so even a small fan will have an impact.

completelycharged said:

Wow, 60C. Add a small 12V computer power supply size fan to give some additional air circulation and that should drop 10C from your readings... just run it 24x7 as they are only 2-5W and save on the hassle of external control. With no fan the convection airflow will be very little so even a small fan will have an impact.

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Yeah, I have the MPI 5.5kw hybrid and I noticed the fans exhausting down thru the bottom. Thinking hot air rises I decided to turn the fans around so they suck air in at the bottom then I installed 4 PC muffin fans on the top (which exhaust air out) where the 4 filters are. I have them running all the time 24/7 from a 12v P/S and the temp holds around 35 deg C.
Does anyone know anything about the fan circuitry in the MPI inverters.
Cheers.

Fans blowing down through equipment by manufacturer design is just wrong, unless the internal circuit layout has the transformer and switching at the bottom (closes to connection points), in which case the top of the case (furthest from the incomming connections) is then the cool spot... reversing the fans will then heat up the rest of the components. Not ideal but with the extra airflow the overall temperature will be lower. Thinking about it if the fans are not on permanently the convection will bake the top of the case and then switch the fans on... add fans...