Sunsynk for dummies

**Isetech** · 15-Jan-23, 07:11 AM

Yip this is the place you want to be if you are new to Sunsynk products and trying to find your way through the maize information on the WWW.

I will try keep the information as simple as possible.

This thread is not for the installer who have already completed 50 plus installation.

We will start with the absolute basics, like how to switch on a 5.3 kwh susnsynk battery. It is simple but if you dont know how, you going to do it wrong.

What you should see on the front panel of the inverter and at what point you must switch on the AC power.

All those silly things that once you have installed a few of these units will become second nature.

**Isetech** · 15-Jan-23, 07:23 AM

Lets get started:

Where to buy a Sunsynk product, just google search, where you buy the product makes no difference because the support is international. All that really matters is the price. ARB offer good prices to contractors/installers. I contacted an online store and told them I was an installer, the price I received was way cheaper than advertised all over the WWW.

Once you buy your Sunsynk product, its a good idea to register on this site as an installer or just a Sunsynk Customer. I have a customer who has full access and manages his own system. They will send your anything you require to keep your system operational. As an installer you can upgrade your profile to an advanced installer.

https://www.sunsynk.org/

**Isetech** · 15-Jan-23, 07:27 AM

It may be a little early to log into Sunsynk.net, just in case I forget to mention it. This is where you will create plants and control your devices.

I am going to keep these threads short so that it is easier to reference at a later stage.

**Isetech** · 17-Jan-23, 07:46 AM

Like anything it takes time to figure it all out. I have watched most of the training videos, have all the installer and product manuals and I have completed a number of Sunsynk installations, that is why I started this thread to help others who are starting out and to share the silly mistakes I have made.

For example, not waiting for the normal light to switch on, such a simple silly thing, but if you dont do it you pretty screwed. Its like a computer, you have to wait for the system to "boot up".

Like not checking the top left corner for the "on" indicator.

Not checking the Libms that there is communication.

Dont do it and you going to have problems. This stuff is repeated over and over in the videos.

This is the right place for anyone who wants to ask that question, that's how I learn, I ask the stupid questions until I understand what it is I need to know and I am going to keep asking.

I failed N4 maths, got a whole 14 %, why because I didnt ask the questions when I got stuck, I went back and did it again asking all the questions not matter how stupid it made me look, I only got 80 %, I should have asked more questions.

**Isetech** · 30-Jan-23, 08:07 PM

If you are starting out like me and not a master installer, this is the place you want to visit. We are going to go into a lot of details, from the basic setting, like the time and site name all the way to whatever challenges I face while installing Sunsynk equipment. Hopefully it will save you the frustration of trying to figure out these silly things. the challenges you face when you are a small fish in a big pond.

At the rate things are going at the moment, it is not going to take me long to get to 100 installs. Hopefully by then I will be able to answer technical questions for people struggling to get started.

**Isetech** · 15-Jan-23, 07:53 AM

You have installed your inverter and battery, connected the AC changeover panel and combiner box, the fuse isolator for the battery and the cabling to and from the DB. if you want me to go into more detail about the installations, let me know. We can go into details about the cable selection and why we select specific cables.

Its time to switch on your 5.3 kwh Sunsynk battery connected to your 5 KVA Sunsynk inverter.

The battery terminal cover should be off and you would have noticed a rocker switch where you plugged in the battery terminals. You switch on the rocker switch. Then you press and hold the button the front of the battery and hold it in for 3 seconds. the lights on the battery will come on.

At this point the inverter should still be switched off, the DC isolator (for solar) and the AC power must be off.

This is the tricky part, once you switch on the inverter you have to wait for quite awhile for the "normal" light to turn on (green). This is a very important stage which I have in the past not done, just because I didnt know any better.

While you waiting for the normal light to switch on, it is a good time to check all the settings and make the required adjustments.

Go through each step and makes sure you press ok after making any adjustments. But more important check each and every parameter.

For example: The frequency was defaulted at 60 hz and you need to change it to 50 hz, make sure you check all the parameters on that screen, the inverter might not reset the limits automatically and you gonna make an absolute fools of yourself in front of the customer as you try contact technical support and waste hours to find it was such a simple error on your part. You would think the inverter would be smart enough to do this automatically, but hey we live and learn. You dont want to become the cricket or squeaking wheel

Check every single setting twice if you have to, press ok and then go back and make sure the inverter updated the setting.

**Isetech** · 18-Jan-23, 07:39 AM

Another free tip:

Be very careful of where you purchase products, especially online.

Make sure that the company you are going to purchase the product from has in in stock. I almost got caught a couple of weeks back when I purchased about R50k worth of solar panels. I was told the company had stock, but decided to drive, pay and collect. It turns out the company didnt actually have the product and I would have to wait 6 weeks once I paid in full

**Isetech** · 03-Feb-23, 06:10 PM

Living and learning,

I didn't know that the 125-500 VDC for a the mppt is 500 VDC max for each MPPT, in other words you can install 8 panels with a 50 VOC (400VDC) per MPPT.

Still trying to wrap my head around the 8 kva unit 2 + 2 string, I sort of have it figured out, but need to spend a little more time to make sure.

**Isetech** · 15-Jan-23, 08:26 AM

Once the normal light switches on (green), you have made sure the BMS is communicating with the inverter, now you switch on the AC power. (this is a very important step)

If you adjusted the grid the red fault light could switch on and a fault code will appear, it doesnt mean there is a fault it could just be because you adjusted the setting after the normal light switched on.

What you should see is the battery needle on the display should be indicating that the battery is charging by the amount you set under battery charge. If the battery doesnt start charging there is a problem, its doent mean the battery or inverter is faulty, it could just be a setting which is not correct.

Check all the settings again, especially your grid settings.

**Isetech** · 28-Jan-23, 08:23 AM

If you plan to buy a Sunsynk product, a few things you might want to consider consider before splashing out R100/200/300K (please feel free to correct me if this is not true)

Apparently Sunsynk plan to stop selling product directly to the public.

An installer can lock you out of your own system if you dont pay his bill or get into a disagreement.

As an end user you will not be assisted if you contact Sunsynk technical, you have to request assistance from your installer, this is going to get interesting. Lets hope your installer is still around in 2 years time. Just imagine trying to claim on your 10 year warranty in 8 years time, there will only be a fraction of installer still in business.