Static pressure [
Pa(in.W.G.
o
10
-2
)]
Airflow rate
Static pressure [
Pa(in.W.G.
o
10
-2
)]
Static pressure [
Pa(in.W.G.
o
10
-2
)]
S
tatic pressure [
Pa(in.W.G.
o
10
-2
)]
S
tatic pressure [
Pa(in.W.G.
o
10
-2
)]
Static pressure [
Pa(in.W.G.
o
10
-2
)]
Airflow rate
Airflow rate
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
1
2
3
4
5
6
0
1
2
3
4
5
6
-150(-60)
-200(-80)
-100(-40)
-50(-20)
0
50(20)
-150(-60)
-200(-80)
-100(-40)
-50(-20)
0
50(20)
-150(-60)
-200(-80)
-100(-40)
-50(-20)
0
50(20)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
-150(-60)
-200(-80)
-100(-40)
-50(-20)
0
50(20)
-150(-60)
-200(-80)
-100(-40)
-50(-20)
0
50(20)
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
0
1
2
3
4
5
6
7
0
1
2
3
4
5
7
6
2 - inlet
2 - inlet
2 - inlet
1 - inlet
1 - inlet
1 - inlet
2 - inlet
1 - inlet
10
20
30
40
[CFM]
Airflow rate
50
100
150
200
Airflow rate
10
20
30
40
50
60
50
100
150
200
[CMM]
[CFM]
[CMM]
[CFM]
[CMM]
[CFM]
[CMM]
50
100
150
200
Airflow rate
[CFM]
[CMM]
50
100
150
200
[CFM]
[CMM]
20
OCH610G
2
PLFY-EP18NEMU-E1
PLFY-EP24/30/36/48NEMU-E
Taking air into the unit
Multifunction ca High efficiency filter
Multifunction ca High efficiency filter
4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
1
PLFY-EP06/08/12/15/18NEMU-E
Taking air into the unit 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 airflow amount Q
<Pa (in.W.G.
o
10
-2
)>
B…Forced static pressure at air condi-
tioner inlet with airflow amount Q
<Pa (in.W.G.
o
10
-2
)>
C…Static pressure of booster fan with
airflow amount Q <Pa (in.W.G.
o
10
-2
)>
D…Static pressure loss increase amount of
fresh air intake duct system for airflow
amount Q
<Pa (in.W.G.
o
10
-2
)>
E…Static pressure of indoor unit with
airflow amount Q <Pa (in.W.G.
o
10
-2
)>
Qa…Estimated amount of fresh air intake
without D
<CMM (CFM)>
How to read curves
Multifunction ca Standard filter
