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User Guide
Please read this instruction carefully before installation and operation of the water heater and keep this
instruction well for further reference.
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Only professional installers acknowledged by A.O.SMITH are permitted to install the heat pump water
heater. If the water heater is installed with self-prepared installation materials or by un-authorized
personnel, A.O.SMITH will not be responsible for all losses incurred thereby, including but not limited
to pipeline leakage, fall or improper installation that may affect normal operation and performance of
water heater.
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The heat pump water heater is for residential application. Therefore, it may affect life expectation if it is
used for commercial application.
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After installation and operation of the heat pump water heater, users should inspect the system regularly
and make necessary maintenance according to operation conditions. If any abnormality occurs, please
stop operation immediately, and contact local authorized dealer for repair to ensure the normal, safe, and
reliable operation of the water heater.
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The anode rod is a consumable part and it is generally suggested to check and replace the anode rod
every 2 or 3 years. Users could contact the local authorized dealer for check and replacement to extend
life expectation of water heater.
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Prior to any maintenance or repair of the heat pump water heater, please cut off power supply.
Unauthorized personnel are not permitted to adjust and repair the heater.
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In case the water heater is subject to dry heating, the generated steam or burning water might lead to
serious scald. Therefore, it is necessary to fill the water heater with water. If dry heating occurs, cut off
the power and water supply at once, stop the operation, contact local authorized dealer, and carry out
inspection or repair by our company recommended professional installers.
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In case of any component soaked by water, the water heater is not permitted to use until checked by
authorized service staff.
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Main components of the storage electrical heater are protected by insulation material to ensure safety use.
Any damaged power cords should be replaced by authorized service staff.
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The pressure relief valve, equipped on the heat pump water heater, is forbidden to change installation
position or be blocked. Discharge pipe is required to connect the valve and down toward floor drain.
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Water, including hot water, out of the heat pump water heater is not permitted for drinking.
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Electricity for the heat pump water heater should be supplied by independent branch of circuit, of which
electricity meter, breaker, maximum current need to be checked by professional electrician in advance.
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Power socket should be located at a dry place, and power cord should not be pu shed or pulled with wet
hand to avoid the danger of electric shock.
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Damaged electric wire, aged, loose and unfixed socket are not suggested to be used because of the
danger of electric shock, short circuits, fires, etc. Please ensure power cord and socket could be
connected well.
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A. O. SMITH water Heater Company Ltd reserves the rights to explain all provisions mentioned above.
CAUTION:
Failure to follow instructions in the user guide may cause fire disaster, which would be a threat
to life and property security.
WARNING:
Heat pump water heater is not permitted for use without reliable ground wire circuit for power
socket. In case of indicator lighted up for “ground wire circuit fault”, please immediately stop
using, pull plug and contact local authorized dealer. Well-drained floor drain is essential to
prevent the damage to surroundings or downstairs in case of leakage of heater or joint.
