0-UC 13-FEB 18-2
Page 17
6.2
Earth Wiring
Units must be earthed and no maintenance work should be attempted prior to disconnecting the electrical
supply. Installation of earth wire should be made to earth screw before connecting the live wires. The earth
wire shall be slacked with longer length as shown in below diagram.
WARNING
Please check electrical safety (leakage current, withstand voltage, earth continuity) after connected
to heaters, fuse, and timers.