Hitachi RAS-18CH5 - Operating Environment and Temperature Limits; Power Supply Network Requirements; Recommended Operating Temperature Ranges

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Please note:
On switching on the equipment, particularly when the room light is dimmed, a slight brightness fluctuation
may occur. This is of no consequence.
The conditions of the local Power Supply Companies are to be observed.
CAUTION: (Model RAS-24CH5/RAC-24CH5)
This unit is intend for operating at a power supply network with a system impedance of maximum 0.18+j0.11
Ohm at the house main power supply connection point.
The user has to make sure, that the unit will be operated only at a power supply network under this
condition. The power supply company will be able to inform you about the connection conditions.
CAUTION: (Model RAS-18CH5/RAC-18CH5)
This unit is intend for operating at a power supply network with a system impedance of maximum 0.18+j0.12
Ohm at the house main power supply connection point.
The user has to make sure, that the unit will be operated only at a power supply network under this
condition. The power supply company will be able to inform you about the connection conditions.
Minimum Maximum Minimum Maximum
Indoor
Dry bulb °C2132 2027
Wet bulb °C1523 1219
Outdoor
Dry bulb °C21 43 2 21
Wet bulb °C15 26 1 15
Note
● Avoid to use the room air conditioner for cooling operation when the outside temperature is below
21°C (70°F).
The recommended maximum and minimum operating temperatures of the hot and cold sides
should be as below:
Cooling Heating