Belimo AFB Series - Page 26

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
7
2
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
F
i
gure A
I
n
s
t
alla
t
io
n
I
n
s
tr
uc
t
io
n
s
Mechan
i
cal Installat
i
o
n
position the clamp so that the pointer section o
f
the tab is pointin
g
to 0°
(
see
F
i
g
ure C
)
and the spline pattern of the clamp mates with spline of the actuator.
S
lip the clamp over the spline.
(
Use the same procedure if the “CW” side is out.
)
If
your application requires a mechanical minimum position, read the
R
otatio
n
Limiting, Mechanical Minimum Damper Position
section.
n
4. Lock the clamp to the actuator usin
g
the retainin
g
clip.
5. Veri
f
y that the damper is still in its
f
ull
f
ail-sa
f
e position
.
6. Slide the actuator over the shaft
.
7. P
os
iti
o
n th
e
ac
t
ua
t
o
r in th
e
des
ir
ed
l
oca
ti
o
n
.
8
. Ti
g
hten the two nuts on the clamp usin
g
a 10mm wrench or socket usin
g
6-8
ft-lb of tor
q
ue.
9. Sli
p
the stud of the anti rotation stra
p
into the slot at the base of the actuator.
T
he stud should be
p
ositioned a
pp
roximatel
y
1/16 of an inch from the closed end
of the slot. Bend the stra
p
as needed to reach the duct. Attach the stra
p
to the
d
uct with #8 self tappin
g
screws.
Short Shaft Installation
I
f the shaft extends at least 3/4” from the duct, follow these ste
p
s
:
1. Determine the best orientation for the universal clam
p
on the back of the
actuator. The best location would be where
y
ou have the easiest access to the V
bolt nuts on the clam
p.
2.
E
ngage t
h
e c
l
amp to t
h
e actuator as c
l
ose as poss
ibl
e to t
h
e
d
eterm
i
ne
d
l
ocat
i
on.
3. Lock the clamp in place using the remaining retainer clip
.
4. Verif
y
that the dam
p
er is still in its full fail-safe
p
osition
.
5
.
S
li
de
th
e
ac
t
ua
t
o
r
o
v
e
r th
e
s
h
a
ft
.
6
. P
os
iti
o
n th
e
ac
t
ua
t
o
r in th
e
des
ir
ed
l
oca
ti
o
n
.
7.
Ti
g
h
ten t
h
e two nuts on t
h
e c
l
amp us
i
ng a 10mm wrenc
h
or soc
k
et us
i
ng 6-8
f
t-lb o
f
tor
q
ue.
8
. Sli
p
the stud of the anti-rotation stra
p
into the slot at the base of the actuator.
T
he stud should be
p
ositioned a
pp
roximatel
y
1/16 of an inch from the closed end
of the slot. Bend the stra
p
as needed to reach the duct. Attach the stra
p
to the
d
uct with #8 sel
f
tapping screws
.
9. If damper position indication is required, use the optional IND-AFB pointer. See
F
i
gure A
.
Jackshaft Installation
The AFB, AFX… series actuator is designed for use with jackshafts up to 1.05” in
diameter. In most applications, the AFB, AFX actuator may be mounted in the same
m
anner as a standard damper sha
f
t application. I
f
more torque is required than one
A
FB, AFX actuator can provide, a second AFB, AFX actuator may be mounted to the
j
ackshaft using the Z
G
-102 multiple actuator mounting bracket.
S
ee wiring guid
e
f
or wirin
g
details
.
AF A
C
T
U
AT
O
R
S
WHI
C
H MAY BE
US
ED
O
N
O
NE
S
HAFT
M
o
d
e
l
Maximum
Q
uantity Per
S
ha
f
t
AF
B
2
4-MFT
(
-S
)
, AFX24-MFT
(
-S
)
3
**
AFB24
(
-
S)
, AFX24
(
-
S)
2
*
AFB
UP
(
-S
)
, AFXUP
(
-S
)
2
*
*
Wired in
p
arallel **Wired master-slav
e
MOU
NTIN
G
: I
f
the actuators are mounted on the opposed ends o
f
the sha
f
t, the
a
ctuator direction must be selected carefully. Usually, the direction of rotation is
r
e
v
e
r
sed.
Multiple Actuator Mounting
I
f more tor
q
ue is re
q
uired than one AFB, AFX actuator can
p
rovide, a second AFB, AFX
a
ctuator may be mounted to the shaft using the Z
G
-102 multiple mounting bracket.
NOTE: The manual positioning mechanism cannot be used in multiple actuator
app
lications.
S
pecial Wirin
g
and Additional Information: See wirin
g
g
uid
e
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
C
orrect clamp mountin
g
position if actuator is at
fu
ll f
a
il-
sa
f
e.
C
orrect pointer mountin
g
p
osition if actuator is at
fu
ll f
a
il-
sa
f
e
.
C
orrect clamp mountin
g
position if actuator is a
t
5
° pre
l
oa
d
.
Correct pointer mounting
position i
f
actuator is a
t
5
°
p
reload.
N40103 - 09/11 - Subject to change. © Belimo Aircontrols (USA), Inc.