User Manual
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
58
Rotation Limitation
The angle of rotation limiter, ZDB-AF2 U
S
, is used in conjunction
w
ith th
e
t
ab
o
n th
e
u
niversal clamp or IND-AF2 position indicator which comes with the ZDB-AF2 U
S
. In
order to
f
unction properly, the clamp or indicator must be mounted correctly.
See
F
ig
ure
A
.
The ZDB-AF2 US may not work in certain mountin
g
orientations usin
g
the ZG-106 or
Z
G-107 mountin
g
brackets. It will not work with the ZG-108 mountin
g
bracket.
Li
m
i
t
i
n
g
t
h
e
d
amper rotat
i
on must
b
e accomp
li
s
h
e
d
b
y a
dj
ust
i
n
g
t
h
e cran
k
arm
linkage.
The ZDB-AF2 U
S
may be used in 2 ways to control the rotational output of the AF
s
eries actuator. One use is in the application where a damper has a desi
g
ned
r
otation less than 90°. An example would be a 45° or 60° rotating damper. The
ot
h
er app
li
cat
i
on wou
ld
b
e to set a m
i
n
i
mum
d
amper pos
i
t
i
on w
hi
c
h
can
b
e eas
il
y
s
et or chan
g
ed without havin
g
to remove the actuator from the damper.
Damper Rotat
i
on L
i
m
i
t
i
ng
1. Determine the amount o
f
damper rotation required
.
2
. Locate the An
g
le of Rotation Limiter
(
ZDB-AF2 US
)
on the actuator so that its
ed
g
e lines up with the de
g
ree
g
raduation on the actuator face which corresponds
with the re
q
uired rotation. See Fi
g
ure
C
.
3. Find the appropriate cross-hair location through the slot o
f
the limiter. This is the
s
crew mounting location
.
4
. Pierce throu
g
h the label material to allow easy fastenin
g
of the retainin
g
screw
.
5
. Position the limiter back to the desired position, makin
g
sure the locatin
g
“teeth”
on the limiter are en
g
a
g
ed into the locatin
g
holes on the actuator
.
6. Fasten the limiter to the actuator usin
g
the sel
f
tappin
g
screw provided.
7
. Test the damper rotation either manually with the manual crank or apply power
and i
f
required, a control si
g
nal. Re-ad
j
ust i
f
necessary.
Installation Instruction
s
M
echanical Installatio
n
20
30
40
Screw secured at
these cross hairs
20
30
40
Angle of rotation
is now set at 40°.
20
30
40
Secure angle-of-
rotation limiter
Screw
Philips screwdriver
FIGURE
C
– ZDB-AF2 US, Securing the Angle of Rotation Limite
r
M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.