Installation Guide

16 • Residen al Electric Water Heater Use and Care Guide
INSTALLATION
INSTALLATION
Step 12:
Opera o
n
The water heater is now ready for
normal operation. To keep your
water heater working safely and
efficiently and extend its life, per-
form maintenance according to the
schedule on page 27.
Turn the electric power on at the
circuit breaker panel, or fuse box.
Power to the water heater will allow
the water heater to run a system
diagnostic. This typically takes eight
minutes. Once complete proceed to
the next step. NOTE: If the system
diagnostic yields any codes, refer-
ence the diagnostic codes section
in this manual. Adjust the thermo-
stat to the desired temperature
setting, and the operating mode,
as described under “Adjusting the
User Interface Module/Operational
Modes” section.
Vaca on Mode (ESM)
To save energy, lower the
temperature setting on the
thermostat if you plan to be gone for
an extended time.
Follow the instructions in Step 10
for adjusting the thermostat to a
lower temperature selling before
you leave and to properly raise
the temperature selling when you
return (See page 17 for ESM Mode
Descriptions).
C AUTION! Hydrogen gas builds up in
a hot water system when it is not used
for a long period (two weeks or more).
Hydrogen gas is extremely fl ammable.
If the hot water system has not been
used for two weeks or more, open a hot
water faucet for several minutes at the
kitchen sink before using any electrical
appliances connected to the hot water
system. Do not smoke or have an open
fl ame or other igni on source near the
faucet while it is open.
Need Assistance?
Call our Technical Assistance Hotline at 1-877-817-6750 .
We can help you with installa on, opera on, troubleshoo ng, or maintenance.
Before you call, write down the model and serial number from the
water heater’s data plate.