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24 • Residenal Electric Water Heater Use and Care Guide
Smart Grid Technology
The electric Smart Grid will enable
signicant improvements in electric
power reliability and quality through
reducon of peak power demand,
while providing consumers the
knowledge and ability to manage
their energy consumpon and ulity
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
interrupons, 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 naon has
also led to higher peak ulity costs.
Smart appliances are one way to
help migate this problem. By using
advanced digital communicaon
technologies, smart appliances will
be able to communicate with local
power companies or home energy
systems, and react accordingly to
save energy and money. For example,
during peak demand periods, the
water heater may pause or delay its
power consumpon and thus reduce
the load on the smart ulity grid.
Addionally, 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
ulmately save money.
EcoPort CTA-2045,
Smart Grid Control
(Where Available)
Where available, grid communicaon
adaptors called Universal
Communicaon Modules (UCM)
may be supplied by the local power
company or purchased from leading
retailers. A UCM is a direct digital
thermostat that provides integrated
control of the unit’s thermostat.
Please contact your local power
company for more informaon.
WARNING! Electrical Shock Hazard.
Disconnect power before servicing.
Replace all parts and panels before
operang. Failure to do so can result
in death or electrical shock.
To acvate Smart Grid Control, turn
o electric power to the water heater
at the circuit breaker or fuse box.
Using a non-contact circuit tester,
check the power wires to make
certain the power is OFF. Remove
the cover over the grid connecon
pins and plug in the UCM grid
communicaon adaptor and return
power to the water heater at the
circuit breaker or fuse box (Figure 29).
Remove
Panel
Grid Connection Pins
ENTER
Figure 29 - Accessing EcoPort CTA-2045
communication port.
NOTICE: Use only approved grid
communicaon adaptors. This
will enable the power company to
communicate the peak demand
periods for the water heater’s power
usage.
Aer this connecon is made, the grid
control is automacally enabled. Press
the “Enter” buon to conrm UCM is
present. This acon will be followed
by a solid LED from the grid indicator
(Figure 30).
Enabling this feature will allow
acceptance of the power company
communicaon grid management
requests.
NOTICE: The LED will blink when the
power company has control of the
unit.
ENTER
Pressing the Smart Grid Control
button will enable and/or disable
a request for grid control.
Figure 30 - Smart Grid Control Button
To disable (override) grid control,
press the “Smart Grid Control”
buon (Figure 30). This acon will be
followed by a 72 hour mer. Remove
CTA 2045 UCM. Press the “Enter”
buon to conrm the disconnecon.
The LED will turn o.
NOTICE: If the CTA 2045 UCM is
not removed followed by pressing
the “Enter” buon, the grid will be
enabled automacally once the 72
hour mer has expired.
OPERATION
OPERATION
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