Mitsubishi Electric PCA-M100KA/PUHZ-ZRP100YKA Service Manual page 20

4-2. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
■
PCA-M35KA
PCA-M50KA
50
0
−50
−100
−150
−200
−250
−300
0 1
Airflow rate[m³/min]
■
PCA-M100KA
PCA-M125KA
PCA-M140KA
50
0
−50
−100
−150
−200
−250
−300
0 1
Airflow rate[m³/min]
OCH659
2 3 4
2 3 4
■
PCA-M60KA
PCA-M71KA
50
0
−50
−100
−150
−200
−250
−300
0 1
Airflow rate[m³/min]
How to read curves
Duct characteristics
Curve in the
at site
1
graphs
Q ... Designed amount of fresh air intake
0
A ... Static pressure loss of fresh air
Q
B ... Forced static pressure at air conditioner
2
C ... Static pressure of booster fan with
D ... Static pressure loss increase amount
Q
3
E ... Static pressure of indoor unit with
Qa ... Estimated amount of fresh air
Q
Qa
16
2 3 4
<m /min>
3
intake duct system with airflow
amount Q <Pa>
inlet with airflow amount Q <Pa>
airflow amount Q <Pa>
of fresh air intake duct system for
airflow amount Q <Pa>
airflow amount Q <Pa>
intake without D <m /min>
3