Safety Summary - Hitachi DXF-2.0A1 Operation Installation Maintenance Manual

1 Safety Summary

● This product is for specified use with incombustible refrigerant R410A. Use refrigerant R410A in
the refrigerant cycle. Do not charge oxygen, acetylene or other flammable and poisonous gases
into the refrigerant cycle when performing a leakage test or an air-tight test. These types of gases
are extremely dangerous and can cause an explosion. It is recommended that compressed air,
nitrogen or refrigerant be used for these types of tests.
● Do not pour water into the indoor or outdoor unit. These products are equipped with electrical
parts. If poured, it will cause a serious electrical shock.
● Do not touch or adjust safety devices inside the indoor or outdoor units. If these devices are
touched or readjusted, it may cause a serious accident.
● Do not open the service cover or access panel for the indoor or outdoor units without turning OFF
the main power supply.
● Refrigerant leakage can cause difficulty with breathing due to insufficient air. Turn OFF the main
switch, extinguish any naked flames and contact your service contractor, if refrigerant leakage
occurs.
● The installer and system specialist shall secure safety against refrigerant leakage according to
local regulations or standards.
● Use an ELB (Electric Leakage Breaker). In the event of a fault, there is danger of an electric shock
or a fire if it is not used.
● Do not install the outdoor unit where there is a high level of oil mist, flammable gases, salty air or
harmful gases such as sulphur.
● This product is designed for indoor or outdoor installation. All wires should be protected from
outdoor environment.
● Do not perform installation work without referring to this Installation Manual. If the instructions
are not followed, it may result in a water leakage, electric shock or fire.
● Secure the sufficiently strong foundation when installing. If not, it may lead to falling of the unit
and injury.
● Do not install where generation or flowing of flammable gas may be detected. It may cause a fire.
● Do not step or put any material on the product.
● When using refrigerant, wear leather gloves to prevent cold injuries.
● Check the refrigerant leakage. The refrigerant R410A is incombustible, non-toxic and odorless of
HFC gas. However, if leakage occurs and gas fills a room, it may cause difficulty with breathing
due to insufficient air.
● Ask the electrical shop where the qualified electrical engineer is provided for electrical work to
avoid an electrical shock and fire disaster.
● Perform electrical work according to Installation Manual and use all relevant regulations and
standards. If not, it may cause an electrical shock or fire.
● Fix the cables securely with the cord clamp. External forces on the connectors may lead to a fire.
● Power supply is turned OFF before electrical wiring work or a periodical check is performed.
● Protect the wires and electrical parts from rats or other small animals. If not, rats may gnaw at the
unprotected parts and at the worst, a fire may occur.
● Place the expansion valve box cable away from the power source cable to avoid malfunction.
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