Hitachi AirCore 700 Operation Installation Maintenance Manual page 9

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Do not install the unit in places where silicon gas is present. Any silicon gas deposited on the surface
of the heat exchanger will repel water. As a result, the condensate water will splash out of the
collection tray and into the electrical box. Water leaks or electrical faults may eventually be caused.
•
Do not install the unit in a place where the current of expelled air directly affects animals or plants as
they could be adversely affected.
•
This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety. Children
should be supervised to ensure that they do not play with the appliance.
NOTES:
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The air in the room should be renewed and the room ventilated every 3 or 4 hours.
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The indoor unit should be positioned where the unit and interunit wires (outdoor to indoor) are at
least 3.3ft (1m) away from any televisions or radios. (The unit may cause interference with the picture
or sound.) Depending on the radio waves, a distance of 3.3ft (1m) may not be sufficient to eliminate
the noise.
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Dismantling the unit, treatment of the refrigerant, oil and additional parts must be done in
accordance with the relevant local, state, and national regulations.
•
As maximum allowable pressure is 4.15MPa, minimum allowable pressure is 2.21MPa, the wall
thickness of field-installed pipes should be selected in accordance with the relevant local, state, and
national regulations.
Explanation of symbols displayed on the indoor unit or outdoor unit
WARNING
CAUTION
CAUTION
CAUTION
Precuations for R32
This air conditioner uses R32 flammable refrigerant. Air conditioner with R32 refrigerant, if not be
treated carefully, may cause serious harm to the human body or surrounding things. Please read the
following instructions carefully before installing, using and maintaining.
WARNING
!
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Do not use means to accelerate the defrosting process or to clean, other than those recommended by
the manufacturer.
•
The appliance shall be stored in a room without continuously operating ignition sources (for example:
open flames, an operating gas appliance or an operating electric heater).
•
Do not pierce or burn the refrigerant system to avoid the leakage.
•
Be aware that refrigerants might not contain an odour.
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Do not charge R32 into system other than those designated for R32.
Do not charge R32 system with oil other than those designated for R32.
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Do not use a reclaim cylinder other than an R32 reclaim cylinder.
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Be sure to only use refrigerant piping approved for use with R32 refrigerant. The use of unapproved
piping may result in explosive rupture.
•
The pipe-work shall be securely mounted and guarded from physical damage.
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The national gas regulations shall also be observed when field-installed refrigerant pipes are
These symbols show that appliance uses a flammable refrigerant. If the
refrigerant is leaked and exposed to an external ignition source, there is
a risk of fire.
This symbol shows that the operation manual should be read carefully.
This symbol shows that a service personnel should be handling this
equipment with reference to the installation manual.
This symbol shows that information is available such as the operating
manual or installation manual.
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1. Safety Summary