7-5. Fresh air characteristics
¢
Circular flow cassette type and Cassette type
Airflow volume—Static pressure of fresh air intake characteristics
98
49
0
10
8
6
4
2
0
0 3.5 7.1 11.0 14.1 17.7 21.2 24.7
Duct static pressure
Airflow
Duct static pressure (mmAq)
Duct
Inside Diameter
Circular flow cassette type: Ø3-3/4 in (95 mm)
Cassette type: Ø2-3/4 in (70 mm)
Static pressure required to take in fresh air
Duct Fan
Pa
0.39
0.20
0
inWG
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 m³/min
CFM
I
nstallation
Duct flange *2
Flexible duct *2
Fan *2
Flexible duct *2
Insulation *1
*1: In case of fresh-air intake, remove the insulation.
*2: Locally-purchased parts
Fresh-air inlet position
For the fresh-air inlet position, refer to "Circular flow cassette type" on page 04-
30 and "Cassette
type" on page 04-33.
7-5. Fresh air characteristics - (04-166) - 7. Fan performance curve
INDOOR
UNITS
INDOOR
UNITS
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