Installation / Operation Instruction Manual

11
Electrical Connections
Before any electrical connections are made, be sure that the water
heater is full of w ater and that the manual shut-off valve in the cold
water supply line is open. If the heating elements are not completely
immersed in water at all times, they w ill be damaged (burned-out) if
energized for even a short period of time. The w arranty does not cover
burned-out heating elements. Check the rating plate and w iring diagram
before proceeding. This electric water heater w as built and wired in
accordance with the INTERTEK testing approvals requirements. The
temperature-limiting device is of the manual reset, trip-free type and has
been factory installed to interrupt all ungrounded power supply
conductors in the event of thermostat failure. The plumbing supplier in
your area ordered this w ater heater wired at the factory to comply w ith
existing area codes, but local utility codes may require or allow other
circuitry. Consult your local pow er company to determine the correct
electrical hook-up in order to meet local utility and building codes and in
order to obtain the most economical rates. All electrical connections to
elements, thermostats, and contactors (certain models) have been made
at the factory. DO NOT alter any of the internal w iring. Wiring
connections may loosen during shipment. Check all connections for
tightness.
To make the w iring connections to a power supply, follow the steps
below.
A) Open cover door of the control box.
B) Bring the power leads from an adequately fused disconnect switch
(not furnished with the water heater due to varying state and local
codes) and connect to the terminal block. Where long runs, local
ordinances or utility company necessitates, an increase in size may be
required.
C) This water heater must be properly grounded. A ground lug is
provided within the electrical control box for connection to a properly
sized ground. (See wiring diagram for minimum required ground size.
Wiring diagram is located on the inside door of the control box)
D) Close cover door of the control box.
Heating Elements
To replace heating elements, disconnect pow er to the w ater heater,
drain tank and replace element. To remove a heating element, use a 1
1/2’’ screw type element wrench available from most supply houses.
Do not over-tighten the new element, as this w ill cause distortion in the
new element gasket. Once the element has been replaced, follow the
instructions ‘‘To Fill The Water Heater’’. It is imperative that the water
heater is full before power is restored to the heating elements.