5.Ground the water heater by connecting the grounding wire from the electrical service ground to the (green) ground screw located in the junction box. Note: Only use 10 gauge wires for electrical connections and a 30 ampere double pole breaker.
6.Connect the red and black wires to the incoming power leads.
7.Replace cover and secure with screws.
Figure 6
Field Wiring
240V - 30A Service
Junction Box 
Cover
Wiring Diagram
240 Volts Only
Installation Checklist
Water Heater Location
!Centrally located with the water piping system.
!Located indoors and in a vertical position.
!Protected from freezing temperatures.
!Provisions made to protect the area from water damage.
!Drain pan installed and piped into an adequate drain.
!Sufficient clearance to service the water heater.
Water System Piping
!Temperature and pressure relief valve properly installed with a discharge line plumbed to an open drain and protected from freezing.
!All piping properly installed and free of leaks.
!Water heater completely filled with water.
!Closed system pressure buildup precautions installed.
!Tempering valve installed per manufacturer’s instructions.
Electrical Connections
!Wiring and connections comply with all applicable codes.
!Water heater and electrical supply are properly grounded.
!Proper overload fuse or circuit breaker protection installed.
8