Hitachi RAS-19SH4 Instruction Manual page 25

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.
Note
G 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:
Indoor
Outdoor
MEMO
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Minimum
Dry bulb °C
21
Wet bulb °C
15
Dry bulb °C
21
Wet bulb °C
15
– 25 –
Cooling
Maximum
32
23
43
26
Heating
Minimum Maximum
20 27
12 19
2 21
1 15