Typical solar water heater configuration with evacuated tubes.
Typical solar water heater configuration for flat plate collectors.
Technical help
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General install
Only copper tube should be used for the install of the solar loop, do not use pex pipe.
Normal pipe insulation is a fire hazard only use high temperature insulation.
Only use metal pipe clips on the solar loop.
Solar water heaters run very high temps so you need to keep this in mind when installing a unit.
Keep all things that could melt or get damaged away from the solar loop.
If you are finding that the hot water you gained in the day has lost all its heat through the night then your system may require a new check valve, your check valve has more than likely failed and convection will take over at night and all the heat will rise to the solar collectors.
If your system seems to be running fine but the temperatures you are getting in your water heater is very low then your flow rate is set wrong.
Try turning your pump speed down or adjust your flow gauge to a lower setting.
The reason for this is because the transfer liquid is passing through the heat exchanger to fast to transfer the heat.
System running at night.
If you find your system is running at night then its more than likely because the computer in the solar water heating system is reading that the outside temperature is near freezing.
If its not freezing temperatures outside then you may have a faulty sensor (t1) try changing it for a new sensor and check your glycol freeze protection.
This will is a very simple fix.
I haved been pushing buttons on the controller and now it wont function.
If you have been pushing buttons on the controller and its locked you out the system, just push and hold the recovery button and all factory presets will be returned to the system.
Lost system pressure.
If your system looses all its pressure and the gauge reads below 1 bar then you may have a leak some where. check all your joints are secure and not leaking.
Dont waste glycol by just refilling the system again, check it by filling it with air and use soapy water to check all your joints.
If you have condensation inside the solar collector and its more than likely the solar collector is at the end of its lifespan or its damaged from the install.
All solar collectors are pressure tested before they leave us for customers.
Filled system but pressure does not read.
If you have filled your system with glycol and the gauge still reads zero, this does not mean the gauge is faulty.
Remove the the black cover on the pressure expansion tank on the top of the unit.
There is a air valve under the cover and you just put a bicycle pump onto it and repressure the system right there, you only need around 1.5 bar if the system is cold.
There is a bladder inside the expansion tank so you are not putting air into the glycol mixture.
For how to videos please click here.
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