Unscrew all six screws with the Phillips screwdriver, and take the back cover off. (See Fig. 5.6.5) There is another bolt hidden underneath the UL certification label. Please remove the lable to unscrew the bolt. 5. L1 L2 PE Fig. 5.6.5 Unscrew the cable clip, and take out the cable from the bottom hole. (See Fig. 5.6.6) 6. L1 L2 PE Fig. 5.6.6 24