Safety Precaution; Precautions During Installation - Hitachi TAW-270NH2A Bedienungsanleitung

To learn how to used the sanitary hot water heat pump correctly and prevent personal injury and damage to
property, the user must read through the "Safety Precautions" before operating the sanitary hot water heat pump.
Pay special attention to instructions preceded by the
Q Precautions in this manual
This manual uses the following signal words and symbols, which are categorized according to the degree of injury
or damage that could occur from incorrect use when signal words or instructions are ignored.
Type and Degree of Injury and Damage
WARNING
CAUTION
Q After reading the precautions, store the operation manual in a location where it can be easily accessed by anyone
using the unit.
WARNING
CAUTION
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SAFETY PRECAUTION

This symbol indicates a potentially
hazardous situation, which if not avoided,
could result in death or serious injury.
This symbol indicates a potentially
hazardous situation, which if not avoided,
may result in minor injury (or property
damage).

PRECAUTIONS DURING INSTALLATION

O Installation of the unit must be performed by the sales agent or other
authorized personnel
Installation by the user could lead to water leakage, electric shock hazards
or fi re.
O
Connect the unit to ground
O
Have your sales agent or other authorized personnel connect the unit
to ground
Ground connections must not be made to gas pipes, water pipes, lightning
rods or telephone ground connections.
An improperly made ground connection may cause damage or short-circuits
that could result in electrical shock and fi re.
O
Do not modify the unit
Modifi cations could lead to water leakage, breakdowns, electrical shocks and
fi re.
O Install an earth leakage circuit breaker
Failure to install an earth leakage circuit breaker may lead to an electric
shock hazard.
O
Install a pressure-relief valve
Failure to install a pressure-relief valve may lead to tank damage.
O
Provide proper drainage of water resulting from dehumidifi cation
Drainage problems could cause water to drip from the outside unit and onto
furniture.
O
Supply the unit with tap water (French hardness (Th) 15 to 20°F, PH7)
Do not use well water, water from a hot spring or ion exchanged water.
If the hardness of the water exceeds (TH) 25°F, install a demineralizer to
lower hardness to 15 – 20°F.
O
Do not connect the unit to other than specifi ed power source
Connecting the unit to an unspecifi ed power source may cause overheating
and fi re.
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WARNING and CAUTION symbols.
Pictorial Examples
Make sure to connect earth line
Indicates a prohibited action
Indicates a mandatory action
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