1. The sensor is 2-4 core thin wire.
2. Solenoid valve (2 cores)
3. Electric heating (3 cores). However, there are special cases such as cable (2 cores) and pump lines (2 cores or 3 cores). The hot water in the solar energy flows into the electric water heater, and the heating time of the electric water heater becomes less, which saves the electricity bill.
The electrically heated water tank must be reliably grounded, even on wet ground, the ground wire angle must be driven below 2 meters. Dry ground should be under 4 meters, subject to wetlands. Lightning protection wires instead of ground wires are absolutely not allowed. However, it can be replaced by the main ground wire of the building, and the grounding wire is thinner, with only one core.
Extended Profile:
Where the control is placed, the line is connected. One line pipe is solar water heater to controller, and the other is from solenoid valve to controller. The solenoid valve to the controller can put a three-branch pipe.
From the tank to the controller, it is best to use two four-split pipes. Because there are more wires, there are electric heating wires, probe wires, electric heating belt lines, etc. If the pump is installed, there should also be a pump line.
