Important: Only a new temperature and pressure relief valve should be used with your water heater. Do not use an old or existing valve as it may be damaged or not adequate for the working pressure of the new water heater. Do not place any valve between the relief valve and the tank.
The Temperature & Pressure Relief Valve:
!Must be connected to an adequate discharge line.
!Must not be in contact with any electrical part.
!Must not be rated higher than the working pressure shown on the data plate of the water heater.
The Discharge Line:
!Must terminate a maximum of 6 inches above a floor drain or external to the building.
!Must be capable of withstanding 250°F (121°C) without distortion.
!Must be installed to allow complete drainage of both the valve and discharge line.
!Must not be smaller than the pipe size of the relief valve or have any reducing coupling installed in the discharge line.
!Must not be capped, blocked, plugged, or contain any valve between the relief valve and the end of the discharge line.
Solar Installation
If this water heater is used as a solar storage heater or as a backup for the solar system, the water supply temperatures to the water heater tank may be in excess of 120°F. A tempering valve or other temperature limiting valve must be installed in the water supply line to limit the supply temperature to 120°F.
Note: Solar water heating systems can often supply water with temperatures exceeding 180°F and may result in water heater malfunction.
Electrical Requirements
WARNING
Electric Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electric shock.
WARNING
Fire Hazard
Use 10 gauge solid copper wire.
Use a UL approved strain relief.
Connect ground wire to green ground screw.
Failure to do so can result in death, fire, or electrical shock.
If you lack the necessary skills required to properly install the electrical wiring to this water heater, do not proceed, but have a qualified electrician perform the installation.
When making the electrical connections, always make sure:
!The electrical supply has the proper overload fuse or circuit breaker protection.
!Wire sizes and connections comply with all applicable codes.
!Wiring is enclosed in approved conduit (if required by local codes).
!The water heater and electrical supply are properly grounded.
Figure 6 and the wiring diagram can be found on the next page. Always reference the wiring diagram for the correct electrical connection. The wiring diagram can also be found on the inside of the junction box cover.
When installing the electrical wiring to the water heater:
1.Shut off the power to the unit.
2.Be sure tank is completely filled with water before making any electrical connections.
3.Remove junction box cover that is secured by 3 screws. Place the cover aside and view the wiring diagram on the inside.
4.Connect the electrical supply to the water heater in accordance with the local utility requirements and codes. A standard 1/2 inch opening has been made in the junction box for the conduit connections. Use approved conduit with copper wires only or Romex.
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