Belimo NFBUP - User Manual

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
69
NFBUP, NFBUP-
S
, NFXUP, NFXUP-
S
On/Off, Sprin
g
Return, 24 to 240 VAC
T
orque min. 90 in-lb, for control of air dampers
A
pp
l
i
cat
i
o
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
a
pplications where the actuator cannot be direct coupled to the damper shaft
.
O
peratio
n
T
he NFB and NFX 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
a
ctuator
.
T
he NFB and NFX series provides 95° of rotation and is provided with a graduated
p
osition indicator showin
g
0° to 95°.
T
he actuator ma
y
be stalled an
y
where in its normal rotation without the need of
m
ec
h
a
ni
ca
l
e
n
d
s
wit
c
h
es.
T
he NFBUP-
S
and NFXUP-
S
versions are provided with two built-in auxiliary switches.
T
hese SPDT switches provide safety interfacing or signaling, for example, for fan start
-
u
p. The switchin
g
f
unction at the
f
ail-sa
f
e position is
f
ixed at +10°, the other switch
function is ad
j
ustable between +10° to +90°. The NFBUP, NFBUP-
S
, NFXUP and
N
FXUP-S actuator is shipped at +5°
(
5° from full fail-safe
)
to provide automatic
c
ompression 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
Technical Data NFBUP, NFBUP-S, NFXUP, NFXUP-S
P
ower supp
l
y 24...240 VA
C
-20%
/
+10%, 50
/
60 Hz
24...125 VDC ±10%
Power consum
p
tio
n
runnin
g
6 W
holdin
g
2.5 W
Trans
f
ormer sizin
g
6 VA @ 24 VAC
(
class 2 power source
)
6.5 VA @ 120 VA
C
9.5 VA @ 240 VA
C
El
ec
tri
ca
l
co
nn
ec
ti
on
NFBUP
..
.
3
ft, 18
G
A appliance cable, 1
/
2" conduit
connec
t
o
r
-S m
o
dels
:
Two 3 ft, 18 gauge appliance cables
w
ith 1/2” conduit connector
s
NFXUP..
.
3
ft [1m], 10 ft [3m] or 16 ft [5m] 18 G
A
a
pp
liance cable, with or without 1/2” conduit
connecto
r
-S m
o
dels
:
two 3
f
t
[
1m
]
, 10 ft
[
3m
]
or
16 ft [5m] appliance cables with or without 1
/
2"
conduit connectors
Overload protectio
n
electronic throu
g
hout 0 to 95° rotation
Contro
l
on/of
f
Tor
q
ue 90 in-lb
[
10 Nm
]
minimu
m
Direction o
f
rotatio
n
spr
i
ng
r
eversible with
C
W
/CC
W mounting
Mechanical an
g
le o
f
rotation 95°
(
ad
j
ustable with mechanical end stop,
3
5° to 95°
)
Runnin
g
tim
e
mo
t
o
r
< 7
5
seco
n
ds
s
pring
20 seconds
@
-4°F to 122°F
[
-20°
C
to 50°
C]
;
< 60 seconds @ -22°F
[
-30°C
]
P
os
iti
o
n in
d
i
ca
ti
on
v
isual indicator, 0° to 95
°
(
0° is full sprin
g
return position
)
Manual overrid
e
5
mm hex crank
(
³⁄
₁
₆
"
Allen
)
, supplied
Humidit
y
max. 95% RH non-condensin
g
A
m
bi
ent temperatur
e
-22°F to 122°F [-30°
C
to 50°
C
]
S
torage temperatur
e
-40°F to 176°F [-40°
C
to 80°
C
]
Housin
g
Nema 2, IP54, Enclosure Type
2
Housin
g
material zinc coated metal and plastic casin
g
A
gency
li
st
i
ngs
†
cULus acc. to UL60730-1A
/
-2-14,
C
AN/CSA E60730-1:02, CE acc. to
2004
/
108
/
E
C
& 2006
/
95
/
E
C
N
o
i
se
l
e
v
e
l <50dB(A) motor
@
75 second
s
≤62dB(A) spring return
S
ervicin
g
maintenance
f
ree
Q
uality standar
d
I
SO
9001
Wei
g
h
t
4.15 lbs
(
1.9 k
g)
, 4.4 lbs
(
2.0 k
g)
with switche
s
† Rated Impulse Voltage 4kV, Type of action 1.AA (1.AA.B for -
S
version),
C
ontrol Pollution Degree 3.
NFBUP-
S
, NFXUP-
S
Auxiliar
y
switche
s
2 x SPDT 3A
(
0.5A
)
@ 250 VAC, UL approve
d
one set at +10°, one ad
j
ustable 10° to 90°
M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.

Summary

Technical Data and Specifications

Power and Electrical Connections

Details power supply, consumption, transformer sizing, and electrical connection types.

Mechanical and Performance Characteristics

Covers torque, rotation angle, running time, and manual override specifications.

Environmental, Housing, and Safety Ratings

Specifies environmental limits, housing details, and agency certifications.

Auxiliary Switches

Details the functionality and specifications of built-in auxiliary switches.

Application and Operation

Application Overview

Describes the intended use for On/Off, fail-safe control of HVAC dampers.

Actuator Operation

Explains spring return operation, rotation, and stall capability.

Dimensions

Accessories and Wiring

Available Accessories

Lists optional accessories for actuator mounting and extension.

Wiring Diagrams and Notes

Provides wiring instructions and diagrams for different configurations.

Safety Warnings

Highlights critical safety precautions for electrical work.

Belimo NFBUP Specifications

General

Servicing	maintenance-free
Protection class	IP54
Supply Voltage	AC 24 V
Transformer Sizing	10 VA
Electrical Connection	3 ft [1 m], 18 GA appliance cable, 1/2” conduit connector
Overload Protection	electronic overload protection
Operating Range	0 to 95°
Direction of Rotation	Reversible
Running Time (Motor)	75 s
Agency Listings	CE
Ambient Temperature Range	32°F to 122°F [0°C to 50°C]
Storage Temperature Range	-30°C to +80°C
Humidity	5 to 95% RH, non-condensing
Mounting position	any position