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1. Connect ground wire first. Connect the ground first, then to green grounding terminal provided under motor canopy (see Figure 5) identified as GRD. Make ground connection to this terminal. Do not connect motor to electrical power supply until unit is permanently grounded; otherwise serious or fatal electrical shock hazard may be caused. 2. For best ground connection, connect to a grounded lead in the service panel or to a metal underground water pipe or well casing at least 10 ft. long. If pl