Mitsubishi Electric PLFY-P32VBM-E Service Manual page 15

5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
l l PLFY-P32 · P40 · P50 · P63 · P80VBM-E
Multifunction casement + Standard filter
50
0
-50
-100
-150
-200
0 1 2
Airflow rate [m
Taking air into the unit
50
0
-50
-100
-150
-200
0 1 2
Airflow rate [m
2 2 PLFY-P100 · P125VBM-E.UK
Multifunction casement + Standard filter
50
0
-50
-100
-150
-200
0 2
Airflow rate [m
Taking air into the unit
50
0
-50
-100
-150
-200
0 2
Airflow rate [m
2 - inlet
1 - inlet
3 4 5
3 /min]
3 4 5
3 /min]
2 - inlet
1 - inlet
4 6 8
3 /min]
4 6 8
3 /min]
.UK
(1)
Multifunction casement + High efficiency filter
50
0
-50
-100
-150
-200
0 1
6
How to read curves
Duct characteristics
Curve in the
at site
1
graphs
0
Q
2
Q
6
3
Q
Qa
Multifunction casement + High efficiency filter
50
0
-50
-100
-150
-200
0 2
15
2 - inlet
1 - inlet
2 3 4
Airflow rate [m /min]
3
Q ... Planned amount of fresh air intake
A ... Static pressure loss of fresh air
intake duct system with airflow
amount Q
B ... Forced static pressure at air condi-
tioner inlet with airflow amount Q
C ... Static pressure of booster fan with
airflow amount Q
D ... Static
pressure
amount of fresh air intake duct sys-
tem for airflow amount Q
E ... Static pressure of indoor unit with
airflow amount Q
Qa ... Estimated amount of fresh air
intake without D
2 - inlet
1 - inlet
4 6
Airflow rate [m 3 /min]
5 6
<m /min>
3
<Pa>
<Pa>
<Pa>
loss increase
<Pa>
<Pa>
<m 3 /min>
8