Mitsubishi Electric PCFY-P40VKM-E Technical & Service Manual page 14

4-5. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
PCFY-P40VKM-E
PCFY-P40VKM-ER1
50
0
-50
-100
-150
-200
-250
-300
0 1
Airflow rate[m³/min]
PCFY-P100, 125VKM-E
PCFY-P100, 125VKM-ER1
50
0
-50
-100
-150
-200
-250
-300
0 1
Airflow rate[m³/min]
OCH449A
2 3 4
2 3 4
PCFY-P63VKM-E
PCFY-P63VKM-ER1
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
E ... Static pressure of indoor unit with
3
Qa ... Estimated amount of fresh air
Q
Qa
14
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