Installation Guide

Residen al Electric Water Heater Use and Care Guide • 19
Smart Grid Technology
The electric Smart Grid will enable
signifi cant improvements in electric
power reliability and quality through
reduc on of peak power demand, while
providing consumers the knowledge
and ability to manage their energy
consump on and u lity costs.
According to the Department of
Energy (DOE), since 1982 the growth
in peak electricity demand has
exceeded power transmission growth.
This has caused more frequent
blackouts and service interruptions,
as well as an increase in the costly
reserve capacity the power grid
requires to meet higher peak
demands. The increased demand for
electrical power across the nation has
also led to higher peak utility costs.
Smart appliances are one way to
help mitigate this problem. By using
advanced digital communication
technologies, smart appliances will
be able to communicate with local
power company or home energy
management systems, and react
accordingly to save energy and money.
For example, during peak demand
periods the water heater may pause
or delay its power consumption
and thus reduce the load on the
smart utility grid. Additionally, smart
appliances will also communicate with
consumers to let them know how
much energy they are consuming.
This will eventually allow consumers
to control their appliances, manage
energy usage, and to ultimately save
money.
Home Automa on,
Smart Grid Control
(Where Available)
Where available, Grid Communica on
Adaptors may be supplied by the
local power company or purchased
from leading retailers. Please contact
your local power company for more
informa on.
To ac vate Smart Grid Control, remove
the cover over the grid connec on pins
and plug in the grid communica on
adaptor. See Figure 24. NOTE: use only
approved grid communica on adaptors.
This will enable the power company to
communicate the peak demand periods
for the water heater’s power usage.
A er this connec on has
been made, simply press the
“Grid Enabled” bu on to
enable and/or disable a
request for grid control. See Figure 25.
Enabling this feature will allow
acceptance of the power company
communica on of grid management
requests. Disabling this feature will allow
the water heater to ignore grid
management requests.
NOTE: Smart Grid will be disabled when
the Energy Smart® Module (ESM) is
disconnected from the junc on box
wiring harness (see page 17).
WARNING! Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before
opera ng.
Failure to do so can result in death or
electrical shock.
Grid Connection
Pins
Junction Box
Grid
Communication
Adaptor
(May Be Supplied By Power Company)
(May Differ in Appearance)
Figure 24 - Smart Grid Connection
F
LOCK
GRID
Pressing this button will
enable and/or disable a
request for Smart Grid Control
ENTER
Figure 25 - Smart Grid Control
INSTALLATION