Mitsubishi PCA-RP35KAQ Service Manual page 13

5-2. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
PCA-RP35/50KAQ
■
PCA-RP50KAQR1
PCA-RP35/50KAQR2
PCA-RP35/50KAQR2-ER
50
0
-50
-100
-150
-200
-250
-300
0 1
Airflow rate[m³/min]
■
PCA-RP100/125/140KAQ
PCA-RP100/125/140KAQR2
PCA-RP100/125/140KAQR2-ER
50
0
-50
-100
-150
-200
-250
-300
0 1
Airflow rate[m³/min]
OCH491D
2 3 4
2 3 4
■
PCA-RP60/71KAQ
PCA-RP60/71KAQR1
PCA-RP60/71KAQR2
PCA-RP60/71KAQR2-ER
50
0
-50
-100
-150
-200
-250
-300
0
How to read curves
Duct characteristics
Curve in the
at site
1
graphs
0
Q
2
Q
3
Q
Qa
13
1 2 3
Airflow rate[m³/min]
Q ... Designed amount of fresh air intake
<m
A ... Static pressure loss of fresh air
intake duct system with airflow
amount Q
B ... Forced static pressure at air conditioner
inlet with airflow amount Q
C ... Static pressure of booster fan with
airflow amount Q
D ... Static pressure loss increase amount
of fresh air intake duct system for
airflow amount Q
E ... Static pressure of indoor unit with
airflow amount Q
Qa ... Estimated amount of fresh air
intake without D <m
4
/min>
3
<Pa>
<Pa>
<Pa>
<Pa>
<Pa>
/min>
3