Chapter Ⅱ Installation（5. Installation and Heat Insulation for Pipelines of Water System）
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③ Finally, put the non-metal rod vertically into the water tank and fix it. From bottom to top, the
sequence is #1 detecting electrode, #2 detecting electrode, #3 detecting electrode, #4 detecting
electrode. The distance between each electrode shall be the same and this distance shall be
defined according to the actual size of water tank (it is suggested to keep a distance of at least
300mm between each electrode). The highest point of electrode shall be lower than the overflow
port and the lowest point of electrode shall be higher than the water-getting point.
（8）Installation Notices
① The water level switch must be installed according to the installation manual or wiring
diagram;
② Please install the water level switch vertically and make sure the wire-outlet hole is lower;
③ Do not install the water level switch box in the humid environment to avoid detection failure;
④ During installation and operation, the connector of water level switch wire shall not be dipped
into the water and shall not be hung inside the water tank to avoid failure;
⑤ During installation, the distance between electrode top of detecting electrode and the inner
pot or bottom of water tank should be 100mm above;
5.3.1.2 One-level Water Level Switch
（1） Installation sketch map
The outline sketch map of one-level water level switch is as shown below. When the float of
water level switch contact with the upper end (OFF), signal circuit will be cut off, which means
water level is in high level(used for controlling high water level). when the float of water level
switch contacts with the lower end(ON), signal circuit will be put through, which means water
level is in low level(used for controlling low water level).
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