Hitachi SRW-0J Instruction Manual page 4

SAFETY PRECAUTIONS
WARNING
Never modify the unit.
Otherwise, there is a danger of electric shock and/or injury.
CAUTION
Avoid locations of high temperatures, high humidity, dew condensation, dust, corrosive gases,
explosive gases, combustible gases, coolant mist and sea damage etc. Install indoors, to avoid
direct sunlight and the unit should be well ventilated.
Otherwise, there is a danger of electric shock and/or injury.