User`s manual

8
7
*1. Ceiling height of 2.4 m *2. Measuring conditions as specified in Japan Refrigeration and Air Conditioning Industry Association standards (JIS B8330 compliant). Measuring conditions:
Standard ducts, hose length of 5 metres with 5 bends (including indoor connection cuffs) and open to the outdoor air. Airflow volume drops under certain installation conditions and usage
conditions. *3. Assuming that an adult at rest takes into the lungs 0.5 L of air per breath (10 mL/kg and body weight of 50 kg) and takes 20 breaths per minute (0.5 L x 20 breaths x 60 minutes =
600 L). These figures are calculated based on normal food intake and maximum lung activity and number of breaths. Actual results may differ due to factors such as type of activity and
temperature.
FTXR28/42/50E
24m
3
/h
32m
3
/h
Ururu Sarara uses a powerful fresh air supply ventilation method. This two-stage air purifying process, involving both the
outdoor and indoor units, rapidly introduces fresh air from outdoors into the room.
During fresh air supply ventilation operation, outdoor air is taken in by the outdoor unit, warmed by the indoor unit during heating
operation and cooled during cooling operation, and supplied to the room. Unlike conventional ventilation fans, this system
prevents hot or cold air from entering through gaps under doors and the like.
Fresh air supply ventilation lets you freshen the air in the room without opening the windows.
Fresh
air supply
ventilation
Powerful ventilation from fresh air, with the
windows closed.
Large air volume
of 32 m
3
/h
(32,000 L /h)
Large ventilation air volume
Ururu Sarara's fresh air supply ventilation
function is powerful enough to completely
replace the air in a room*
1
measuring
approximately 26 m
2
in two hours. It can
quickly ventilate spaces like a living room,
where the whole family gathers, by pumping
in plenty of fresh air. You can use Ururu
Sarara as a replacement for a conventional
ventilation fan.
Fresh Air Supply Ventilation Volume*
2
Setting
Normal
High
Eliminates pollen, dust, and odours. Only pure air is supplied.
The actual air volume may be reduced under certain installation conditions and room usage conditions.
The amount of air a person breathes in an hour is about 600 L*
3
.
When the whole family is gathered in the living room, you want to make sure there
is plenty of fresh air.
Indoor unit
Air supply
filter
Fresh air
How Fresh air supply ventilation works
Plenty of clean, fresh air is
introduced into the room.
OdoursPollen Dust
Outdoor unit
Heat catalyst
Unpleasant
odours and
pollen
A heat catalyst
effectively
eliminates odours.
During heating operation
Cold air from outdoors is warmed by the
indoor unit's heat exchanger before being
supplied to the room.
Cold air from outdoors enters the room,
lowering the overall temperature.
Drafts
Fresh air supply ventilationUsing a ventilation fan or opening the windows