PRECAUTIONS
PRECAUTIONS
Safety considerations
The installation, servicing and maintenance
of air conditioning equipment may be
hazardous due to the pressure which the
refrigerant gas exerts on the interior, and
its electrical components. Only specialized
and professionally qualified personnel may
install, repair or perform servicing work on
air conditioning equipment. Non-specialized
people may only perform basic
maintenance work such as: cleaning the
coils and cleaning and/or replacing the
filters.
All other types of maintenance work may
only be performed by specialized
personnel. To perform such work, the
installer must follow the safety standards
applicable, and must wear safety goggles,
clothing and gloves suitable for this
purpose. Appropriate protection must be
used during welding work; a fire
extinguisher must always be kept close to
hand.
For your safety, read these instructions
through carefully and respect all of the
labels marked WARNING below.
WARNING or CAUTION contained in this
manual or attached to the housing of the
unit.
Consult your local regulations applicable
with respect to electrical installations for
special requirements.
Recognize the safety information
The symbol “ ” indicates a safety alert.
When you see this symbol, it is because
there is a potential risk of material
damage or personal injury. Understand
the meaning of the words DANGER,
WARNING AND CAUTION. These words
are used in conjunction with the alert
symbol.
DANGER means situations with a severe
risk to injury to people, including the risk
of death. The word WARNING means
situations which could result in personal
injury, including death. The word
CAUTION indicates unsafe practices
which could result in minor personal injury
or material damage.
!
WARNING
!
• Do not attempt to interconnect units from
different manufacturers without first
consulting your Carrier representative or
an engineer specializing in air conditioning.
The incompatibility between the indoor and
outdoor unit and its control devices could
cause serious problems for both units and
invalidate the manufacturers’ warranty
coverage. Carrier accepts no liability and
will cancel the product warranty if these
installation instructions are not followed as
indicated, or if the wiring is changed.
Consult your preferred Carrier
representative for further details.
• Before installing, modifying or performing
servicing work on the system, check that
the electrical power supply to the unit has
been switched off. Check that there is not
more than one power switch. Check and
label each switch present with the
appropriate wording. Electric shocks can
cause personal injury, and even death. If
the power supply cable is damaged, it
must be replaced only with an authorized
Carrier spare part by its network of
authorized dealers.
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