Hitachi RAS-S18CAK Instruction Manual page 21

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:
Outdoor
MEMO
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Indoor Dry bulb °C
Wet bulb °C
Dry bulb °C
Wet bulb °C
– 21 –
Minimum Maximum
21 32
15 23
21 43
15 26