Heat Exchange Ventilation And Normal Ventilation - Fujitsu UTZ-BD035B Technical Manual

4-1-3. HEAT EXCHANGE VENTILATION AND NORMAL
VENTILATION
 HEAT EXCHANGE VENTILATION
Stale indoor air to be ex-
hausted (EA)
Outdoor
Fresh external
air (OA)
 NORMAL VENTILATION
Outdoor
Fresh external
air (OA)
Stale indoor air to be
exhausted (EA)
 ATTENTION
 When the heating function is on during winter, do no use "normal ventilation." The dew condensation will take place in the
unit, which may result in stains on the ceiling, etc.
Fresh external air to be
supplied indoors (SA)
Indoor
Total heat
exchanger
Stale indoor air
(RA)
Fresh external air to be
supplied indoors (SA)
Indoor
Total heat
exchanger
Stale Indoor air
(RA)
External air is heat-exchanged with indoor air, and supplied
indoors after the temperature is made closer to the room
temperature
External air is let in without heat-exchange with indoor air.
- (01-19) -