Fujitsu AJ 126LELDH Series Design & Technical Manual page 428

 How to read curve
a
Curve in
the graphs
0
Q
Q:
Designed amount of fresh air intake (m
A: Static pressure loss of fresh air intake duct system with airflow amount Q (Pa)
B: Forced static pressure at air conditioner inlet with airflow amount Q (Pa)
C: Static pressure of booster fan with airflow amount Q (Pa)
D: Static pressure loss increase amount of fresh air intake duct system for airflow amount Q
(Pa)
E: Static pressure of indoor unit with airflow amount Q (Pa)
Qa:
Estimated amount of fresh air intake without D (m
 Installation
*1: Remove the 4 screws
*2: Locally purchased parts
NOTES:
• When taking in the fresh air, insulation is required to prevent product malfunction due to con-
densation.
• Temperature conditions
– Condensation may form on the product when the outside air temperature is low and the tem-
perature and humidity surrounding the product are high. Do not intake the air of below 0 °C
into the Fresh air intake kit.
– Do not take fresh air at a temperature that exceeds the upper limit of the operation tempera-
ture range of the outdoor unit.
7-6. Fresh air characteristics
Duct characteristics b
at site
Q
Fresh air inlet position *1
Flexible duct *2
- (04-248) -
3
/h)
3
/h)
Round duct and the screws *2
c
Q
Qa
7. Fan performance curve