HTP SSU-119SE - Manual (Page 24)

24
LP-199 REV. 4.15.14
M. ELECTRICAL CONNECTION (SE MODELS ONLY)
Tank must be full before unit is turned on. The heating element will be damaged if energized for even a short period of time while tank
is dry. This damage IS NOT covered by warranty.
Be sure to ground the water heater. The preferred way to ground is with rigid metal conduit between the main panel and the water
heater junction box with approved end fittings (check codes on the use of flexible conduit). If making a separate ground, a green ground
wire is provided in the water heater junction box. Replace the junction box cover and insulation after you have made the wiring
connections.
This unit is factory wired to a junction box on top of the water heater. A 4 x 4 x 2 junction box is located on top of the unit for field wiring
connection. These heaters are equipped and wired as standard 120 volt AC (for point of use heaters) and 240 volt AC (for dual element
heaters). The voltage requirement and dedicated wattage load for the heater is specified on the rating label. A minimum 30 amp circuit
is required to connect the water heater. Consult your local power company to determine if your electrical service is adequate for the
additional load of the heater.
Installation, attachment, or use of any unapproved devices in conjunction with this water heater WILL VOID the warranty. The use of
unauthorized energy saving devices may shorten the life of the water heater and possibly endanger property and life. The manufacturer
disclaims any responsibility for any loss or injury resulting from the use of such unauthorized devices.
Refer to the wiring diagrams below for field connections. 240V electrical installation should be done by a qualified licensed electrician or
by your local electric utility. All wiring must conform to local code and the National Electric Code. Grounding can be accomplished by
using approved conduit and fittings or other approved conductive material. A grounding wire is provided on the junction bracket. This
grounding wire must be used in the installation.
After the water and electrical connections have been made and the tank has been filled with water and purged of air, turn on power to
the heater. The heater is now operational.
Do not use SE model water heaters with any voltage other than shown on the model rating plate. Failure to use the correct voltage
shown on the rating plate could result in property damage, serious personal injury, or death.
Figure 11 – SE Series Electrical Connection Detail