Engineering Manual

88
Static pressure [Pa(in.W.G.×10
-2
)]
Static pressure [Pa(in.W.G.×10
-2
)] Static pressure [Pa(in.W.G.×10
-2
)]
Static pressure [Pa(in.W.G.×10
-2
)]
Static pressure [Pa(in.W.G.×10
-2
)]
2 - inlet
1 - inlet
Air flow rate
-200(-80)
-150(-60)
-100(-40)
-50(-20)
50(20)
0
2 - inlet
1 - inlet
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
Static pressure [Pa(in.W.G.×10
-2
)]
0 0.2 0.4 0.6 0.8 1 1.2 1.4 [CMM]
-150(-60)
-100(-40)
-50(-20)
0
50(20)
10 20 30 40
[CFM]
Air flow rate
2 - inlet
1 - inlet
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
Air flow rate
2 - inlet
1 - inlet
0
-200(-80)
-150(-60)
-100(-40)
-50(-20)
50(20)
10 20 30 40 50 60 [CFM]
Air flow rate
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 [CMM]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
Air flow rate
0 1 2 3 4 5 6 [CMM]
50 100 150 200
[CFM]
0 1 2 3 4 5 6 [CMM]
50 100 150 200
[CFM]
0 1 2 3 4 65 7 [CMM]
50 100 150 200 [CFM]
0 1 2 3 4 65 7 [CMM]
50 100 150 200 [CFM]
2
PLA-A24 · A30 · A36 · A42EA7
Multifunction casement + Standard filter Multifunction casement + High efficiency filter
Taking air into the unit
Taking air into the unit
3. Fresh air intake amount & static pressure characteristics
1
PLA-A12 · A18EA7
Multifunction casement + Standard filter Multifunction casement + High efficiency filter
Q
0
B
A
C
1
Curve in the
graphs
Duct characteristics
at site
Q
A
E C
2
Q
Qa
A D
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.×10
-2
)>
B
…
Forced static pressure at air condi-
tioner inlet with air flow amount Q
<Pa(in.W.G.×10
-2
)>
C
…
Static pressure of booster fan with
air flow amount Q
<Pa(in.W.G.×10
-2
)>
D
…
Static pressure loss increase amount
of fresh air intake dust system for air
flow amount Q
<Pa(in.W.G.×10
-2
)>
E
…
Static pressure of indoor unit with air
flow amount Q
<Pa(in.W.G.×10
-2
)>
Qa
…
Estimated amount of fresh air intake
without D
<CMM(CFM)>
How to read curves