未接地的
1.All of piping, storage tank that need static grounding must be firmly grounded.
3.SINGLE PHASE GROUNDED LINE DETECTION FOR POWER NETWORK WITH ARC SUPPRESSION COIL GROUNDING
6.This water heater is supplied with a flexible, grounded power cord that connects to a standard three-wire, grounding-type receptacle.
8.Connect the ground jumper that is connected to the ground lug,to ground post that is located on the sub-base.
