2
INSTALLATION AND SETUP
1
Get to know your Energy Smart
®
Electric water heater controller.
With your new electric water heater controller, you can:
• Monitor and control your water heater with a smart
phone, tablet, or computer over your home’s wireless
(WiFi) network.
• Receive alerts when you’re low on hot water.
• Create custom water heating schedules that are
controlled by your computer or other device through
your home’s WiFi network.
Reset Button
Beeper
Status LED
Figure 1.
MAC
Address
Label
2
Review the requirements.
To get started, you will need:
• A working wireless (WiFi) network router with Internet
access.
• A personal computer, smart phone, or tablet computer
connected to your home’s WiFi network.
• One of the following water heater models:
ES2H40HD045V, ES2J40HD045V, ES2H50HD045V,
ES2J50HD045V, ES2J65HD045V, ES2H80HD045V,
ES2J80HD045V, ES40R92-45D, ES40R123-45D,
ES50R92-45D, ES50R123-45D, ES80H123-45D.
• One #2 Phillips screwdriver.
Read and follow all of the instructions, cautions, and
warnings in your water heater’s use and care guide.
WARNING! Even if the water heater’s temperature
control is set to a relatively low temperature, hot
water can scald. Install thermostatic mixing valves at
each point-of-use to reduce the risk of scalding.
3
Install the Controller.
WARNING! Working on an energized circuit can result
in severe injury or death from electrical shock. Turn power
off before performing this installation. Check wires with a
non-contact circuit tester to make sure power is off.
tep 2:
Remove access cover.
Discard screws.
Longer screws
provided.
Do NOT remove
junction box covers.
Connection Pins
Figure 2.
tep 1: Turn power off at source (circuit breaker).
are installed as described in step 4 above. Screws
must be installed to prevent equipment damage.
Step 4:
Secure controller
with the longer
screws (2). The
longer screws are
provided with the
controller.
Cover
Access
Port
Controller
Step 3: Plug controller
into water heater.
WARNING! Do not turn power on unless screws
Step 5: Turn water heater’s power back on according
to its use and care guide.
Step 6: Watch the water heater’s display screen for
the Grid icon to appear (Figure 3). This may
take a minute or so after power has been
turned on.
Step 7: Activate the screen by touching any button,
then releasing it.
Step 8: If the screen is locked, touch and hold the
Lock button for at least 5 seconds. The Lock
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