TFB24 Installation Operation Manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
1
65
T
orque min. 22 in-lbs, 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 from 1/4” u
p
to 1/2” in diameter
b
y means of its universal clamp, 1/2” shaft centered at delivery. A crank arm and
s
everal mounting brackets are available for applications where the actuator cannot be
d
irect cou
p
led to the dam
p
er shaft.
Op
eratio
n
T
he TF series actuators provide true sprin
g
return operation for reliable fail-safe
a
pplication and positive close off on air ti
g
ht dampers. The sprin
g
return system
p
rov
id
es cons
i
stent torque to t
h
e
d
amper w
i
t
h
, an
d
w
i
t
h
out, power app
li
e
d
to t
h
e
a
ctuator.
T
he TF series provides 95° of rotation and is provided with a
g
raduated position
i
n
di
cator s
h
ow
i
ng 0° to 90°.
T
he actuator may be stalled anywhere in its normal rotation without the need of
mec
h
an
i
ca
l
en
d
sw
i
tc
h
es.
P
ower consumpt
i
on
i
s re
d
uce
d
i
n
h
o
ldi
ng mo
d
e.
T
he TF-S versions are provided with one built-in auxiliary switch. This SPDT switch is
p
rovided
f
or sa
f
ety inter
f
acing or signaling,
f
or example,
f
or
f
an start-up. The switching
f
unction is ad
j
ustable between 0° and 95°
.
S
AFETY NOTE
Screw a conduit fi tting into the actuator’s bushing. Jacket the actuator’s input and
output wiring with suitable fl exible conduit. Properly terminate the conduit in a
suitable
j
unction box.
Dimensions (Inches [mm])
0.43" [11]
0.77" [19.5]
4.5"
[114]
0.2"
[5.2]
6.28"
[159.5]
3.0"
[76.2]
3.30"
[83.72]
2.40" [61]
0.68" [16.7]
Standard:
1/4" to 1/2"
1/4" to 5/16"
D
096
TFB24
(
-S
)
, TFX24
(
-S
)
On/Off, Sprin
g
Return, 24
V
Technical Data TFB24(-S), TFX24(-S)
P
ower suppl
y
24VAC ± 20%, 50/60Hz
24VDC ± 10%
P
ower consum
p
tion runnin
g
2W
holdin
g
1.
3
W
Transformer sizing 5 VA
(
class 2 power source
)
E
lectrical connectio
n
TFB24..
.
3 ft, 18 GA appliance cable, 1/2” conduit
connecto
r
-S m
o
dels: two 3
f
t, 18
g
au
g
e appliance cables
with 1/2" conduit connector
s
TFX24... 3 ft [1m], 10 ft [3m], or 16 ft [5m], 18 G
A
appliance or plenum cables, with or without 1/2”
conduit connecto
r
-S m
o
dels: two 3 ft
[
1m
]
, 10 ft
[
3m
]
or 16 ft
[5m] appliance cables with or without 1/2"
con
d
uit connector
s
Overload protectio
n
electronic throughout 0 to 95° rotation
A
n
g
le of rotatio
n
max 95°, ad
j
ust. with mechanical sto
p
Torqu
e
22 in-lbs
[
2.5 Nm
]
minimu
m
Dir
ec
ti
o
n
o
f r
o
t
a
ti
on
reversible with cw/ccw mountin
g
P
osition indicatio
n
visual indicator, 0° to 95°
(
0° sprin
g
return position
)
R
unning tim
e
m
oto
r
< 7
5
sec
(
nominal
)
sprin
g
< 25 sec @-4°F to 122°F
[
-20°C to 50°C
]
< 60 sec
@
-22°F [-30°
C]
H
umidit
y
5 to 95% RH non-condensin
g
A
mbient temperatur
e
-22°F to 122°F
[
-30°C to 50°C
]
Stora
g
e temperatur
e
-40°F to 176°F
[
-40°C to 80°C
]
H
ousin
g
NEMA type 2 / IP42, UL enclosure type
2
H
ousin
g
materia
l
U
L94-5VA
Ag
ency listin
g
s
†
cULus acc. to UL60730-1A/-2-14
,
CAN/CSA
E60730-1:02, CE acc. to 2004/108/EC
(
and
2006/95/EC for -S versions
)
N
oise level (max) runnin
g
< 50 db (A
)
spring retur
n
62 dB
(
A
)
S
ervicin
g
m
a
int
e
n
a
n
ce
fr
ee
Quality standard ISO 9001
Weigh
t
1.4 lbs (0.6 kg), 1.5 lbs (0.7 kg) with switc
h
† Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
TFB24-S, TFX24-
S
A
uxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL approved
adjustable 0° to 95°
N40103 - 09/11 - Subject to change. © Belimo Aircontrols (USA), Inc.