Hitachi AirCore 700 Installation & Maintenance Manual page 6

1. Safety Summary
WARNING
!
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Assure that the maximum operating pressure is checked when connecting to Indoor UNIT.
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This unit shall only be connected to an appliance suitable for the same refrigerant and must only be
connected to the appliance that have been confirmed as complying to corresponding requirements of
IEC 60335-1 and IEC 60335-2-40.
•
Only qualified personnel licensed or certified in their jurisdiction must carry out the installation work.
Installation must be done in accordance with this installation manual. Improper installation may result
in water leakage, electric shock, or fire.
•
Pipe work and installation shall be in compliance with national codes (ASHRAE15 or IRC).
•
Use only specified accessories and parts for installation work. Failure to use specified parts may result
in water leakage, electric shock, fire, or the unit falling.
•
Install the air conditioner or heat pump on a foundation strong enough that it can withstand the weight
of the unit. A foundation of insufficient strength may result in the unit falling and causing injuries.
•
Take into account strong winds, typhoons, or earthquakes when installing. Improper installation may
result in the unit falling and causing accidents.
•
Make sure that a separate power supply circuit is provided for this unit and that all electrical work is
carried out by qualified personnel licensed or certified in their jurisdiction according to local, state, and
national regulations. An insufficient power supply capacity or improper electrical construction may
lead to electric shock or fire.
•
Make sure that all wiring is secured, that specified wires are used, and that no external forces act on the
terminal connections or wires. Improper connections or installation may result in fire.
•
When wiring, position the wires so that the electrical wiring box cover can be securely fastened. Improper
positioning of the electrical wiring box cover may result in electric shock, fire, or the terminals overheating.
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Before touching electrical parts, turn off the unit.
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The circuit must be protected with safety devices in accordance with local and national codes, i.e. a
circuit breaker.
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Securely fasten the outdoor unit terminal cover (panel). If the terminal cover/panel is not installed
properly, dust or water may enter the outdoor unit causing fire or electric shock.
•
Do not use any sprays such as an insecticide, lacquer, hair spray or other flammable gases within
approximately 1 meter from the system.
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If the circuit breaker or fuse is often activated, stop the system and contact your service contractor.
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Check that the ground wire is securely connected. If the unit is not correctly grounded, it leads electric
shock. Do not connect the ground wiring to a gas piping, water piping, lighting conductor or ground
wiring for telephone.
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Connect a fuse of specified capacity.
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Before performing any brazing work, check to ensure that there is no flammable material around. When
using the refrigerant be sure to wear leather gloves to prevent cold injuries.
•
Perform the electrical work according to Installation Manual and all the relevant regulation and
standards. If the instructions are not followed, an electrical shock and fire may occur due to insufficient
capacity and inadequate performance.
•
Ensure that the wiring terminals are tightened securely with the specified torques. If not, generating fire
or an electric shock at the terminal connection part may occur.
•
When a fire occurs, cut off the power supply immediately.
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