Belimo AFB Series User Manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
49
T
orque min. 180 in-lb, for control of air damper
s
A
pp
licatio
n
F
or On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should be
d
one in accordance with the damper manufacturer’s specifications. Control is On/Off
f
rom an auxiliary contact, or a manual switch.
T
he actuator is mounted directl
y
to a dam
p
er shaft u
p
to 1.05” in diameter b
y
means
o
f its universal clamp. A crank arm and several mountin
g
brackets are available for
app
lications where the actuator cannot be direct cou
p
led to the dam
p
er shaft
.
Operatio
n
T
he AFB and AFX series actuators provide true spring return operation for reliable fail-
s
afe application and positive close off on air ti
g
ht dampers. The sprin
g
return system
p
rovides constant tor
q
ue to the dam
p
er with, and without,
p
ower a
pp
lied to the
ac
t
ua
t
o
r
.
T
he AFB and AFX series provides 95° of rotation and is provided with a
g
raduated
p
osition indicator showin
g
0° to 95°
.
T
he actuator may be stalled anywhere in its normal rotation without the need of
m
echa
n
ical
e
n
d
s
w
i
t
ches.
T
he AFB24-
S
and AFX24-
S
versions are provided with two built-in auxiliary switches.
T
hese SPDT switches are provided for safety interfacing or signaling, for example, for
f
an start-up. The switching
f
unction at the
f
ail-sa
f
e position is
f
ixed at +10°, the other
s
witch function is ad
j
ustable between +10° to +90°. The AFB24, AFB24-
S
, AFX24 and
A
FX24-
S
actuator is shipped at +5°
(
5° from full fail-safe
)
to provide automatic
compression against damper gaskets for tight shut-off
.
Dimensions (Inches [mm])
K7-2 (supplied)
1/2" Centered
(Default)
3/4" Centered
(Field Selectable)
1.05" Centered
(Field Selectable)
WAFBNFBDi
m
AFB24, AFB24-S, AFX24, AFX24-
S
On/Off, Sprin
g
Return, 24
V
Technical Data AFB24, AFB24-S, AFX24, AFX24-S
P
ower su
pply
24 VA
C
± 20% 50
/
60 H
z
24 VD
C
+20%
/
-10%
Power consumption runnin
g
5 W
holdin
g
2.5 W
Transformer sizin
g
7.5 VA
(
class 2 power source
)
Electrical connectio
n
AFB24..
.
3 ft, 18 GA appliance cable, 1/2" conduit
connecto
r
-
S
models: two 3 ft, 18
g
au
g
e appliance cables
with 1/2” conduit connector
s
AFX
24..
.
3
ft
[
1m
]
, 10 ft
[
3m
]
or 16 ft
[
5m
]
18
G
A
appliance or plenum cables, with or without 1
/
2”
conduit connector
-
S
m
o
dels: two
3
f
t [1m], 10
f
t [3m] or
16 ft [5m] appliance cables, with or without 1/2"
co
n
du
it
co
nn
ec
t
o
r
s
O
verload protectio
n
electronic throu
g
hout 0 to 95° rotation
C
ontro
l
on
/
of
f
Tor
q
ue 180 in-lb
[
20 Nm
]
minimu
m
Direction o
f
rotatio
n
sprin
g
reversible with CW/CCW mountin
g
M
echanical an
g
le o
f
rotatio
n
95°
(
ad
j
ustable with mechanical end stop, 35° to
95°
)
R
unn
i
n
g
t
i
me
mo
t
or
< 75 secon
ds
sprin
g
20 seconds
@
-4°F to 122°F [-20°
C
to 50°
C
];
< 60 seconds @ -22°F
[
-30°C
]
Posi
t
io
n
i
n
dica
t
ion
v
i
sua
l
i
n
di
cator
,
0° to 95
°
(
0° is
f
ull sprin
g
return position
)
M
anua
l
overr
ide
5 mm
h
ex cran
k
(
³⁄
₁₆
"
All
en
)
, supp
li
e
d
Humidity max. 95% RH non-condensin
g
Ambient temperatur
e
-22°F to 122°F
[
-30°
C
to 50°
C]
S
tora
g
e temperature -40°F to 176°F
[
-40°
C
to 80°
C]
H
ous
i
n
g
N
ema 2,
IP
54,
E
nc
l
osure
T
ype
2
Housin
g
materia
l
zinc coated metal and plastic casin
g
A
g
ency listin
g
s
†
cULus acc. to UL60730-1A/-2-14,
C
AN
/CS
A E60730-1:02,
C
E acc. to
2
00
4
/
1
08/
E
C
&
2
006/95/
E
C
Noise level <50dB(A) motor
@
75 seconds
≤62dB(A) spring return
S
ervicing maintenance
f
re
e
Q
uality standar
d
I
SO
9001
Wei
g
h
t
4.6 lbs
(
2.1 k
g)
; 4.9 lbs
(
2.25 k
g)
with switches
† Rated Impulse Volta
g
e 800V, Type of action 1.AA
(
1.AA.B for -S version
)
, Control Pollution De
g
ree 3.
A
FB24-
S
, AFX24-
S
Auxiliary switches 2 x
S
PDT 3A (0.5A)
@
250 VA
C
, UL approve
d
one set at +10°, one adjustable 10° to 90
°
N40103 - 09/11 - Subject to change. © Belimo Aircontrols (USA), Inc
.

Belimo AFB Series Specifications

General

Brand	Belimo
Model	AFB Series
Category	Controller
Language	English