Solar hot water, me too

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Murphy's friend

Guru

Joined: 04/10/2019
Location: Australia
Posts: 678
Posted: 07:25am 06 Mar 2023      

Thanks Mike, I'm looking forward to get my hot water heater ready, still a while before I finish the power cable for it (requires ripping up pavers & digging a trench).

Now, the eagle eyed of post scrutinisers here might have noticed there is an error in my schematic. Unfortunately it missed my double checking.

As shown, the controller only supplies solar power to a connected GTI while the heater is on.
What is wanted is the opposite.
Just remove the connection from the 12V relay coil to its center contact.
Then, connect that center contact directly to 12V.
Fixed