ELECTRICAL CONNECTIONS
All installation procedures involving electric power connection should only be performed by a trained, certified electricians.
FIG. 4 Electric Power Connections - Electrical Control Panel
WARNING:
WATER HEATER IS EQUIPPED FOR OPERATION ON ONE VOLTAGE ONLY. Check the rating plate on the front of the control panel access for the correct voltage and phase. DO NOT use this water heater with any other voltage other than the voltage specified on the rating plate. Failure to use the correct voltage can cause problems that can result in death, serious bodily injury or property damage.
CAUTION
DO NOT CONNECT THE WATER HEATER TO AN IMPROPER SOURCE OF ELECTRICITY!
The appliance, when installed, must be electrically grounded in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements, with the latest edition of the National Electrical Code, NFPA No. 70. When the appliance is installed in Canada, it must conform to the CAE C22.1, Canadian Electrical Code, Part 1 and/or local Electrical Codes.
1.Use copper conductors only. All wiring between the appliance and field installed devices shall be made with copper wire suitable for at least 167°F (75°C) temperature rating. If the wiring from an old water heater installation was aluminum, replace the old wire with copper wire.
2.The factory internal wiring is attached to a terminal block inside the unit. The branch circuit is connected to the terminal block through an opening provided on the top of the water heater electrical access panel.
3.Line voltage wire exterior to the appliance must be enclosed in approved conduit or approved metal clad cable.
4.To avoid serious damage, DO NOT energize the appliance until the system is full of water. Ensure that all air is removed from the storage tank and piping before beginning initial operation. Operation of a water heater without a completely filled tank may result in serious damage to the appliance and heating element burn out.
5.The water heater should be connected with a separate grounded branch circuit with over current protection and disconnect switch. The water heater should be grounded in accordance with national and local codes. A ground terminal is provided for ground connection only.
6.Provide the appliance with proper overload protection in the branch circuit. It is suggested that the electrician size the branch circuit at 125 percent of the heater ampere rating and further increase wire size as necessary to compensate for voltage drop in long runs. Branch circuit voltage drop should not exceed 3% at the heater.
7.Voltage applied to the heater should not vary more than +5% to
8.A wiring diagram is provided with the water heater for the electricians use.
CAUTION
Never turn on the electric power or attempt to use this electric water heater unless it is completely full of water. Water must flow from the hot water faucet before turning electrical power "ON." Operation of a water heater without a completely filled tank may result in serious damage to the appliance and heating element burn out.
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