HTP EV-80 - Manual (Page 11)

11
LP-04 REV. 4.15.14
PART 4 – HEATER WIRING
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.
Refer to the wiring diagrams below for field connections. To make service connections to the 120 volt model, the white wire must be
connected to the neutral leg. 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.
Figure 5 - Wiring Detail – LP-04-E
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.