12
2 - inlet
1 - inlet
2 - inlet
1 - inlet
2 - inlet
1 - inlet
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
0
1
2
50
100
150
200 [CFM]
3
4
5
6[CMM]
2 - inlet
1 - inlet
Air flow rate
Static pressure [Pa(in.W.G.
%
10
-2
)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
0
1
2
50
100
150
200 [CFM]
3
4
5
6[CMM]
Static pressure [Pa(in.W.G.
%
10
-2
)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
0
1
2
50
100
150
200 [CFM]
3
4
5
6[CMM]
Air flow rate
Static pressure [Pa(in.W.G.
%
10
-2
)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
0
2
50
100
150
200
250
[CFM]
4
8
[CMM]
6
Air flow rate
Static pressure [Pa(in.W.G.
%
10
-2
)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
0
50(20)
0
2
50
100
150
200
250
[CFM]
4
8
[CMM]
6
Air flow rate
Static pressure [Pa(in.W.G.
%
10
-2
)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
50(20)
0
2
50
100
150
200
250
[CFM]
4
8
[CMM]
6
Air flow rate
Static pressure [Pa(in.W.G.
%
10
-2
)]
2
PLFY-P36NBMU-E, PLFY-P36NBMU-ER1, PLFY-P36NBMU-ER2
Multifunction ca Standard filter
Multifunction ca High efficiency filter
Taking air into the unit
Taking air into the unit
5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
1
PLFY-P12 · P18 · P24 · P30NBMU-E, PLFY-P12 · P18 · P24 · P30NBMU-ER1
PLFY-P12 · P18 · P24 · P30NBMU-ER2
Multifunction ca High efficiency filter
Multifunction ca Standard filter
Q
0
B
A
C
1
Curve in the
graphs.
Duct characteristics
at site
Q
A
EC
2
Q
Qa
AD
3
Q…Designed amount of fresh air intake
<CMM (CFM)>
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q <Pa (in.W.G.
o
10
-2
)>
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
<Pa (in.W.G.
o
10
-2
)>
C…Static pressure of booster fan with air
flow amount Q <Pa (in.W.G.
o
10
-2
)>
D…Static pressure loss increase amount
of fresh air intake duct system for air
flow amount Q <Pa (in.W.G.
o
10
-2
)>
E…Static pressure of indoor unit with air
flow amount Q <Pa (in.W.G.
o
10
-2
)>
Qa…Estimated amount of fresh air
intake without D <CMM (CFM)>
How to read curves
OCH421B
