Hitachi RAC-D10EX2 Instruction Manual page 18

TWO WAY AIR EXCHANGE OPERATION
• Operate the fresh air in and exhaust by operating the two way air exchange fan.
• The fresh air in and exhaust can be operated in combination by configuring the Two Way Air Exchange Operation
while the air conditioning operates.
• The fresh air in and exhaust cannot be operated simultaneously.
WARNING
• If the fresh air in/exhaust function is insufficient when the air conditioning is utilized in a sealed room or
simultaneously with a heating appliance, open a window often or ventilate with a ventilating fan.
• If ventilation is insufficient, oxygen deficiency may cause asphyxiation.
• When the humidity inside the room is HIGH (more than 70%), do not use the fresh air in operation.
Dew condensation may be the cause of failure.
(Please refer to page 32, Understanding The Operating Mechanism)
Press the button.
• The device beeps when it has received the signal
and the two way air exchange starts. By pressing
the button, the display changes as on the right.
• The OPERATION and the "Two Way Air Exchange"
lamps on the indoor unit indicators turns on.
• Although the ventilated air is deodorized by the
Nano-Titanium Disinfecting Deodorizing/Dust
Collecting Fresh Air In Filter, the odor of the
1
ventilated air may enter the room according to the
environment where the filter is utilized. If there is
concern regarding any odors, please stop the
device.
• Operate the exhaust for about 10 minutes every 2
hours during fresh air in to prevent dew
condensation on the two way air exchange fan and
hose and to prevent dust from plugging the hose.
• It is recommended that the self clean operation is
configured to dry the inside of the two way air
exchange hose (Refer page 30).
Press the
STOP Press the
turns off. (During HEAT, COOL and DEHUMIDIFY operation)
(START/STOP) button.
button. Until Fresh Air In or Exhaust on the remote controller
– 18 –
Turns off
(Stop)