-
137
-
1.2.8 Characteristics of fan
(2) Satellite ducted type (FDUM)
3-spot blower
internal resistance
Sta
nd
ard
H
ig
h
Sta
nd
ard
M
ed
iu
m
Sta
nd
ard
L
ow
Square duct blower
internal resistance
2-spot blower
internal resistance
• External static pressure table
How to interpret the blower characteristics table
Example : Case of FDUMA252R
2-spot blowout.....................
Internal resistance increases more than
the standard 3-spot blowout.Approx.
14Pa at 17m
3
/min
Square duct blowout...........
Internal resistance decreases more than
the standard round duct (ø200 3-spot).
3Pa at 17m
3
/min. (External static
pressure increases in reverse.)
Model
Duct specs.
1 spot
closing
Standard
Stan-
dard
High
speed
(4)
Stan-
dard
High
(4)
speed
Stan-
dard
High
speed
(1)
Square duct
Air flow
(m
3
/min)
FDUMA252
FDUMA302
FDUMA402
FDUMA502,602
14
18
20
28
34
-
35
30
50
50
-
70
65
80
75
50
50
50
60
60
85
85
85
90
85
50
55
55
65
65
90
90
90
95
95
FDUMA202
Unit : Pa
40
20
0
–20
14
13
16
18
20
–10
Static pressure (Pa)
Air flow (m
3
/min)
3-spot blower
internal resistance
Sta
nd
ar
H
ig
h
Standard
M
edium
Standard Lo
Square duct blower
internal resistance
2-spot blower
internal resistance
3-spot blower
internal resistance
Sta
nd
ard
H
ig
h
Standard
M
edium
Standard Low
internal resistance
2-spot blower
internal resistance
FDUMA252R
13
14
18
20
100
120
20
0
-10
-20
80
60
40
Air flow(m
3
/min)
Lower
limit
16
Static pressure (Pa)
Hig
h s
pe
ed
·U
pp
er lim
it
Standard·Upper limit
High spee
d·Low limit
High spee
d·High
High speed
·Medium
H
igh spee
d·
Low
Standard
·L
ow
Standard
·Medium
Standa
rd·High
FDUMA202R
100
120
80
60
40
20
0
-20
10
12
14
15.5
Air flow(m
3
/min)
Lower
limit
Upper
limit
[Standard]
2-spot blower internal resistance
Square duct blower internal resistance
High spee
d·
Upper lim
it
Standard
·Upper limi
t
High speed
·Low limit
High speed
·High
High speed
·Medium
High speed·
Low
Standard·Low
Standard
·Medium
Standa
rd·High
Static pressure (Pa)
[Standard]
3-spot blower internal resistance
2-spot blower internal resistance
Square duct blower internal resistance
Upper
limit
Notes (1) 1 spot closing: Round duct flange at center is removed and shield with a
special panel (option).
(2) Standard: ø200 duct are installed at all blowout holes.
(3) Square duct: All round ducts are removed and replaced with special
square duct flanges (option).
(4) When using the high speed setting, turn the dip switch SW9-4 on the
indoor PCB to the ON position.
(When setting from the remote controller, select “Hi CEILNG 1”)
