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Precautions for safety
The manufacturer shall not assume any liability for the damage caused
by not observing the description of this manual.
General
• Before starting to install the Air to Air Heat Exchanger with DX Coil
Unit, read carefully through the Installation Manual, and follow its
instructions to install the Air to Air Heat Exchanger with DX Coil Unit.
• Do not use any refrigerant different from the one specified for
complement or replacement. Otherwise, abnormally high pressure
may be generated in the refrigeration cycle, which may result in a
failure or explosion of the product or an injury to your body.
• Install the Air to Air Heat Exchanger with DX Coil Unit at least 2.5 m
above the floor level since otherwise the users may injure themselves
or receive electric shocks if they poke their fingers or other objects
into the Air to Air Heat Exchanger with DX Coil Unit while it is running.
• Before opening the electrical control cover, inspection cover or
maintenance cover of the Air to Air Heat Exchanger with DX Coil Unit,
set the circuit breaker to the OFF position. Failure to set the circuit
breaker to the OFF position may result in electric shocks through
contact with the interior parts.
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to undertake work at heights using a stand of 50 cm or more
or to remove the electrical control cover, inspection cover or
maintenance cover of the Air to Air Heat Exchanger with DX Coil Unit
to undertake work.
• When working at heights, use a ladder which complies with the ISO
14122 standard, and follow the procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake
the work.
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to carry out the electrical work of Air to Air Heat Exchanger
with DX Coil Unit.
• Under no circumstances must this work be done by an unqualified
individual since failure to carry out the work properly may result in
electric shocks and/or electrical leaks.
• Electrical wiring work shall be conducted according to law and
regulation in the community and Installation manual. Failure to do so
may result in electrocution / short circuit.
WARNING
• When repairing the electrical parts or undertaking other electrical
jobs, wear gloves to provide protection for electricians and from heat.
Failure to wear this protective gear may result in burn.
• Before carrying out the installation, maintenance, repair or removal
work be sure to set the circuit breaker for the Air to Air Heat
Exchamger Unit to the OFF position. Otherwise, electric shocks may
result.
• Place a “Work in progress” sign near the circuit breaker while the
installation, maintenance, repair or removal work is being carried out.
There is a danger of electric shocks if the circuit breaker is set to ON
by mistake.
• When cleaning the filter, heat exchange element or humidifier of the
Air to Air Heat Exchanger with DX Coil Unit, set the circuit breaker to
OFF without fail, and place a “Work in progress” sign near the circuit
breaker before proceeding with the work.
• Before opening the electrical control cover, inspection cover and
maintenance cover of the Air to Air Heat Exchanger with DX Coil Unit,
set the circuit breaker to the OFF position.
• Failure to set the circuit breaker to the OFF position may result in
electric shocks through contact with the interior parts. Only a qualified
installer (*1) or qualified service person (*1) is allowed to remove the
electrical control cover, inspection cover and maintenance cover of
the Air to Air Heat Exchanger with DX Coil Unit and do the work
required.
• Only a qualified installer (*1) or qualified service person (*1) is
allowed to undertake work at heights using a stand of 50 cm or more
or to remove the electrical control box cover, inspection cover or
maintenance cover of the Air to Air Heat Exchanger with DX Coil Unit
to undertake work.
• When working at heights, use a ladder which complies with the ISO
14122 standard, and follow the procedure in the ladder’s instructions.
Also wear a helmet for use in industry as protective gear to undertake
the work.
• When cleaning the filter, heat exchange element or humidifier of the
Air to Air Heat Exchanger with DX Coil Unit, set the circuit breaker to
OFF without fail, and place a “Work in progress” sign near the circuit
breaker before proceeding with the work.
• Do not install the Air to Air Heat Exchanger with DX Coil Unit in a
location that may be subject to a risk of expire to a combustible gas.
If a combustible gas leaks and becomes concentrated around the
unit, a fire may occur.
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+00EH99887601-2_01EN.book Page 3 Thursday, September 15, 2016 5:23 PM
