User guide

User Instructions
Please read the instructions carefully before the installation or operation of the water heater.
This user guide is meant for your future reference and is applicable for the following models.
 EWSH 15
 EWSH 25
 EWSH 15 - LHS
 EWSH 25 - LHS
Please refer the invoice or the product nameplate for identifying the model name. Please follow
the instructions accordingly.
• Only A. O. Smith recommended professional installers will install the A. O. Smith water
heater for you. In case of improper installation of the water heater by unauthorised
personnel, A. O. Smith will not be responsible.
• The water heater is forbidden to install vertically or alter the inlet and outlet side
configurations.
• The above products come in a default wall mounting configuration. Please refer the
instructions to convert this to a floor mounting configuration. Alternatively dial our
Customer Care No. 1.800.103.2468 for instructions and installation.
• If the user installs the water heater manufactured by our company by themselves or do it
by using the self prepared installation materials, our company will not be liable for any
adverse effects on normal operation and service performance of the water heater,
including but not limited to pipeline leakage, fall or improper installation thereof and
harmful effects on or damage to the body of the water heater as well as all losses
incurred thereby.
• After installation and operation of the water heater, users should inspect the water
heater regularly and make necessary maintenance according to the service conditions.
If any abnormality occurs, stop the operation of the water heater immediately and dial
our Customer Care No. 1.800.103.2468 for repair to ensure the normal, safe and reliable
operation of the water heater.
• Prior to any maintenance or repair of the water heater, please ensure to cut off the
power. Those installers who are not recommended by A. O. Smith should not adjust or
repair the water heater.
• This water heater is equipped with relief valve. For the sake of safe operation, the
mounting position of the valve should not be changed without permission and the
blockage of valve drain outlet is strictly prohibited. The discharge pipe must be provided
for the relief valve, mounted downwards continuously and should not be knotted in the
middle. The discharge pipe shall be directly connected to the floor drain.
• Before installing the water heater, confirm that the power of water heater matches its
electric meter capacity and power wire.
• This water heater should be earthed reliably. It is prohibited to connect the earth wire to
neutral wire or tap water pipe.
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Caution: Failure to follow the instructions provided in the user guide may lead to risk of
fire and could cause property damage and / or personal injury or death.
Warning: Power-on and operation will be permitted only after reliable grounding is
provided for the power socket. The water heater is strictly forbidden for use in
circumstances where no safe grounding or well-drained floor drain is provided.
In the installation area, it should be ensured that the water leakage of the water
heater or joints may not cause damage to the articles in adjacent region or lower
portion of the building.