Hitachi RPIZ-0.8HNATNQ Operation Installation Maintenance Manual page 5

DANGER
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Please don't perform installation works such as refrigerant piping connection, drain pipe connection, and wiring
connection. Violations may result in system leakage, electrical failure or fire. In the case of fire, please turn off the
power immediately; please don't touch electrical parts with the hands, or electric shock may arise.
● Do not pour water into the indoor or outdoor unit. This machine is an electric product that may develop serious
electric failure when exposed to water.
●
Do not open the service cover of indoor or outdoor units without turning OFF the main power supply; otherwise, this
may bring about serious safety accident.
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Do not touch or adjust safety devices inside the indoor or outdoor units. If they are touched or readjusted, serious
accident may arise.
● Refrigerant R410A is non-flammable, non-toxic, and odorless, and may produce toxic gases when exposed to open
flame. Since this refrigerant gas is heavier than air, it may result in lack of oxygen, thereby leading to breathing
difficulties when the area near the ground is filled with this gas. If that's the case, please turn off the main switch
immediately, cut off the power supply, and open the doors and windows for ventilation. Put out any open flame, and
contact your service dealer. Performing leak detection and gas tightness test with oxygen, acetylene or other
flammable and toxic gases may cause explosion, so nitrogen is recommended for this test.
● The standards for safe refrigerant leakage in construction and system operation are determined based on local
regulations or standards.
● Use ELB with medium or higher sensing speed (ELB with an operating time of 0.1 seconds or less), or electric
shock or fire may arise.
● For installation, the refrigerant piping must be firmly connected before the operation of compressor. For repair, the
refrigerant piping must be moved, handled and removed after the stop of compressor.
● Please don't short-circuit the protective device (e.g., the pressure switch, etc.) during operation, since this may
cause fire or explosion.
WARNING
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Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within approximately one (1)
meter from the system.
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If the earth leakage breaker (ELB) is frequently activated, please stop the system and contact your local dealer or
customer services.
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Make sure the ground wire is securely connected. The improper grounding of machine may lead to electrical failure.
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Please don't connect the ground wire to gas pipes, tap water pipes, lightning rods or phone ground wires.
Make sure there are no flammable materials around during brazing operation. Please wear leather gloves to prevent
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frostbite when filling refrigerant.
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Prevent rats or other small animals damaging the wiring and electrical components. Bitten unprotected parts may
cause a fire.
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Firmly fix the connection wires. The external force of terminal may result in looseness of terminal that may cause a
fire.
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Make sure the air conditioner is installed with enough strength of fixation; otherwise, the air conditioner may fall or
topple over, which may bring about machine damage or personal injury.
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Please follow the installation instructions and related regulations and standards for electrical construction; otherwise,
electrical failure or fire may occur due to inadequate capacity or inconsistent specifications.
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Never fail to use specified wiring and select correct wiring, since failure to do so may cause electrical failure or fire.
Please make sure the outdoor unit is not covered with snow or ice before use.
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This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
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The A-weighted emission sound pressure don't exceed 70 dB(A) .
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or
●
mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning
use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children without supervision.
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