Hitachi RPC-1.5FSR Technical Catalogue page 6

DANGER
● Do not perform the installation work, refrigerant piping work, drain pump, drain piping and electrical wiring
connection without referring to our installation manual. If the instructions are not followed, it may result in
a water leakage, electric shock or fire.
● Use the specified refrigerant (R410A or R32) to the outdoor unit in the refrigerant cycle.
Do not charge the unit with material other than R410A or R32, such as hydrocarbon refrigerants (propane
or etc.), oxygen, flammable gases (acetylene or etc.) or poisonous gases when installing, maintaining and
moving the unit. These flammables are extremely dangerous and may cause an explosion, fire, and injury.
● Do not pour water into the indoor or outdoor unit. These products are equipped with electrical parts.
If water is poured, it will cause a serious electrical shock.
● Do not open the service cover or access panel for the indoor or outdoor unit without turning OFF the main
power supply.
● Do not touch or adjust safety devices inside the indoor unit or outdoor unit. If these devices are touched
or readjusted, it may cause a serious accident.
● 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.
● Make sure that a refrigerant leak test has been performed. Refrigerant (Fluorocarbon or Difluoromethane)
for this unit is non-toxic, and odorless. If the refrigerant should somehow escape and come into contact
with flame, toxic gas will form. This gas is heavier than air and will settle near floor areas and spread
where it can cause suffocation to those nearby. In addition, difluoromethane is flammable and can cause
fire.
● The installer and system specialist shall secure safety against refrigerant leakage according to the local
regulations or standards.
● Use an ELB (Earth Leakage Breaker).
In the event of fault, there is danger of an electric shock or fire if it is not used.
● Do not install the outdoor unit where there is high level of oil mist, flammable gases, salty air or harmful
gases such as sulfur.
● For installation, firmly connect the refrigerant pipe before the compressor starts operating.
For maintenance, relocation and disposal, remove the refrigerant pipe after the compressor stops.
● Do not perform a short circuit of the protection devices, such as the pressure switch during operation.
It may cause a fire and explosion.
iv
SAFETY SUMMARY
TCI-20007-rev.1