Horizon FCJJ-16 User Manual

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Step 4: 
There will be two times more Hydrogen gas produced than oxygen and so watch the hydrogen 
tank (D) for bubbles coming out of the notches at the bottom of the gas container (F). The bubbles 
indicate that the gas container (F) is full.
Step 5: 
Disconnect the solar panel (A) from the reversible fuel cell (C) by removing the banana plug cables 
(B) from the solar panel’s banana plug sockets.
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b. The reversible fuel cell (C) is now ready to have the solar panel placed in the sun  light and 
connected.  
Step 1:
Step 2:
Look closely at the reversible fuel cell (C), bubbles will be created and formed inside. The gases 
begin to collect in the gas containers, Hydrogen in the Hydrogen tank (D) and Oxygen in the 
Oxygen tank (E), displacing the water in the gas canisters causing the water level in the 
Hydrogen tanks (D) and Oxygen tank (E) to rise.
Step 3:
The solar panel (A) is converting energy from the sun into electrical energy, and is sending 
electricity to the reversible fuel cell (C). With electricity, the reversible fuel cell (C) is acting as an 
electrolyzer and is able to separate water (H2O) into oxygen (O2) and hydrogen (H2).
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Insert the red banana plug cable (B) into the red banana socket and the black banana plug cable 
(B) into the black socket on the solar panel. Attach the other ends to the reversible fuel cell (C) 
being careful to match up the banana plug color with the reversible fuel cell’s banana plug socket. 
If you cross the wires, i.e. have a red banana plug cable inserted into a black banana plug socket 
and a black banana plug cable inserted into a red banana plug socket, the reversible fuel cell (C) 
could be permanently damaged.