All things Sunsynk (Deye, Inge, etc...)

[Mike Hoxbig]

Where are you getting the inverter temperature readings from?

 

[DrJohnZoidberg]

View attachment 1496527

Ok, same values I'm using but just getting mine from the graph:

 

[TheJman]

Ok, same values I'm using but just getting mine from the graph:

View attachment 1496539

Sheesh, your guys are running almost 20 degrees cooler!

Question though, do your inverters have internal fans? Or do you have any cooling on it?

 

[starmage]

Brand new 5Kw Sunsynk install and this is what mine usually looks like - unit is installed inside the house (not a cupboard or anything). This is in Centurion.

 

[DrJohnZoidberg]

Sheesh, your guys are running almost 20 degrees cooler!

Question though, do your inverters have internal fans? Or do you have any cooling on it?

My 8kw Sunsynk has 3 fans that are quite loud and kick on pretty often when charging or powering bigger loads.

I don't have any separate cooling, my garage stays relatively cool (this sensor is in the area where the inverter draws fresh air from).

 

[B-1]

Brand new 5Kw Sunsynk install and this is what mine usually looks like - unit is installed inside the house (not a cupboard or anything). This is in Centurion.

View attachment 1496591

No fans?

 

[starmage]

No fans?

I dont think so, as its whisper quiet.

 

[TheJman]

Brand new 5Kw Sunsynk install and this is what mine usually looks like - unit is installed inside the house (not a cupboard or anything). This is in Centurion.

View attachment 1496591

Okay so we're in the same boat - the new 5kw's don't have internal fans.

I'm going to look at setting something up to try bring the temp down though

 

[TheJman]

No fans?

Nope, they removed the fans from the new ones - don't get why.

My installer says I shouldn't be worried about the heat on the inverter.

My very very basic understanding of technology and heat is that heat adds to degradation, so figure a simple setup of either a small desk fan or something a bit more tech like a sensor that turns the fan on and off based on temp.

 

[sgs]

70 degrees isn't crazy hot for this type of electronics, but the cooler they can run, the better in the long run for the lifespan of e.g. capacitors. I'm sure even at 70 degrees they'd last the length of their warranty period, so from the manufacturer's point of view, they don't need the fans...

On my 5kW I initially I hung one of those USB desk fans under the inverter. Then I purchased 2x 5V ball-bearing PC fans, glue-gunned them to the garage wall wall underneath the inverter's heatsink and powered them up from a USB charger, running 24/7. Temps are now in the 40-50 degree range. I call this a cheap hack

There are some 3D printed brackets available for this type of fan install too which would be more "elegant". But on the newer inverters it requires drilling a hole or two in the inverter's heat-sink to mount the bracket. I would prefer not to do that while it is still under warranty...

 

[TheJman]

70 degrees isn't crazy hot for this type of electronics, but the cooler they can run, the better in the long run for the lifespan of e.g. capacitors. I'm sure even at 70 degrees they'd last the length of their warranty period, so from the manufacturer's point of view, they don't need the fans...

On my 5kW I initially I hung one of those USB desk fans under the inverter. Then I purchased 2x 5V ball-bearing PC fans, glue-gunned them to the garage wall wall underneath the inverter's heatsink and powered them up from a USB charger, running 24/7. Temps are now in the 40-50 degree range. I call this a cheap hack

There are some 3D printed brackets available for this type of fan install too which would be more "elegant". But on the newer inverters it requires drilling a hole or two in the inverter's heat-sink to mount the bracket. I would prefer not to do that while it is still under warranty...

Yeah agreed - I don't think it will impact "warranty life", but I feel like following what @Willie Trombone did here https://mybroadband.co.za/forum/threads/all-things-sunsynk-deye-inge-etc.1189126/post-30866213 could be a nice cheap option.

Would be great to be able to run the fans off the battery itself, but they don't draw that much anyway.

 

[Fcon_Vpro]

Sheesh, your guys are running almost 20 degrees cooler!

Question though, do your inverters have internal fans? Or do you have any cooling on it?

I run the same temperature as you. All depends on how much inverting is being done. But I do have heat issues in my garage as my metal doors are west facing and radiate heat

 

[AchmatK]

There are times that my inverter temp goes over 90°.

First spike is when they 4kw geyser switched on and second spike is during loadshedding when the domestic was probably running the dishwasher, washing machine, water pumps and or base loads. Third spike is geyser switching on in the late afternoon.

 

[B-1]

There are times that my inverter temp goes over 90°.

First spike is when they 4kw geyser switched on and second spike is during loadshedding when the domestic was probably running the dishwasher, washing machine, water pumps and or base loads. Third spike is geyser switching on in the late afternoon. View attachment 1496793

Thats pretty wild. Here's my 8kw with 3kw geyser on load and 4kw geyser on nonessentials.

 

[AchmatK]

What are those graphs from - SA?

Yes. Solar assist

 

[AfricanTech]

Word of warning - the quality of these particular units isn't great.

Going to have to go back to get one that works properly (will take my cable tester with me this time).

On the unit I bought, the right port was fine, but the left wasn't - tester showed that the pins were misaligned - instead of 1:1, 2:2, etc I am getting 1:2, 2:3, etc

Grrr

Zero faith in those cheap splitters so dug out the crimpers and rolled my own 'split' cable (fortunately I had two 'back to back' ethernet joiners handy as well). Heatshrink really finished it off nicely.

The first one failed 'cos I didn't leave enough slack so I think one of the CAN wires broke while I was manuevering it into place (tested fine but failed after fitment) but Version 2 works perfectly (well, the battery side anyway - my Solarassist cable hasn't arrived yet...)

Fail:

Success:

Having heard reports that people had issues when using a 'full' cable even though only '1-3' and '4-5' are used, I snipped off the unneeded wires in each connecter.

Tip for getting the wires on to the correct pins, use 'dummy' wires inserted from the top to block the the channels you don't need.

 

[furpile]

I like. I think it's time for me to pull the trigger... though I'm currently staring at another R150k for a new battery and more panels lol.

The way I looked at it was that you are spending ~R150k to R200k another R4k to ensure the system is working properly is worth it. Just another piece of safety equipment in the system. The added convenience is a bonus.

 

[furpile]

There are times that my inverter temp goes over 90°.

First spike is when they 4kw geyser switched on and second spike is during loadshedding when the domestic was probably running the dishwasher, washing machine, water pumps and or base loads. Third spike is geyser switching on in the late afternoon. View attachment 1496793

Maybe do a check on your fans in the 8kW. Mine almost never goes over 55C even when doing 8kW DC conversion. The additional 12V fans always blowing cold air into the inverter seems to have dropped the average temperature from 50C to 45C but the built in fans still come on often so they are not enough.

 

[Mzezman]

Zero faith in those cheap splitters so dug out the crimpers and rolled my own 'split' cable (fortunately I had two 'back to back' ethernet joiners handy as well). Heatshrink really finished it off nicely.

The first one failed 'cos I didn't leave enough slack so I think one of the CAN wires broke while I was manuevering it into place (tested fine but failed after fitment) but Version 2 works perfectly (well, the battery side anyway - my Solarassist cable hasn't arrived yet...)

Fail:

Success:

Having heard reports that people had issues when using a 'full' cable even though only '1-3' and '4-5' are used, I snipped off the unneeded wires in each connecter.

Tip for getting the wires on to the correct pins, use 'dummy' wires inserted from the top to block the the channels you don't need.

Maybe i missed this in an earlier post - any reason why your CT coils are inside the inverter? Is everything in your house on essentials?

 

[acp]

From what I understand this happens when an array outperforms its rated capacity (7.2kWp) in semi-cloudy weather...

Riding the "cloud edge" today