AbsolutAire AMB24-3-S User Manual
138
I20618 - Subject to change. © Belimo Aircontrols (USA), Inc.
AMB24-3(-S)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
Technical Data AMB24-3(-S)
Power Supply 24 VAC ± 20% 50/60 Hz
24 VDC ± 10%
Power Consumption 2.5 W (0.2 W)
Transformer Sizing 5.5 VA (Class 2 power source)
Electrical Connection 3 ft, 18 GA plenum rated cable
3 ft, 18 GA appliance rated cable (-S)
1/2” conduit connector
Overload Protection electronic throughout 0 to 95° rotation
Control on/off, floating point
Input Impedance 600Ω
Angle of Rotation max. 95°, adjust. with mechanical stop
Torque 180 in-lb [20 Nm]
Direction of Rotation reversible with switch
Position Indication reflective visual indicator (snap-on)
Manual Override external push button
Auxiliary Switch 1 x SPDT, 3A (0.5A) @ 250 VAC
(-S Models) Adj. 0 to 100%, UL listed
Running Time 95 seconds, constant independent of load
Humidity 5 to 95% RH non condensing
(EN 60730-1)
Ambient Temperature -22°F to +122°F [-30°C to +50°C]
Storage Temperature -40°F to +176°F [-40°C to +80°C]
Housing NEMA 2/IP54
Housing Material UL94-5VA
Agency Listings cULus acc. to UL 60730-1/-2-14 and
CAN/CSA C22.2 No.24, CE according
to 73 / 23 / EEC
Noise Level <45dB(A)
Servicing maintenance free
Quality Standard ISO 9001
Weight 2.2 lbs [1000 Kg] AMB24-3
2.4 lbs [1050 Kg] AMB24-3-S
Torque min. 180 in-lb for control of damper
surfaces up to 45 sq ft.
Application
For on/off and floating point control of dampers in HVAC systems. Actuator sizing should be done in accordance with the
damper manufacturer’s specifications.
The actuator is mounted directly to a damper shaft up to 1.05”
in diameter by means of its universal clamp, self-centered
default. A crankarm and several mounting brackets are available for applications where the actuator cannot be direct coupled to the damper shaft.
Operation
The actuator is not provided with and does not require any
limit switches, but is electronically protected against overload.
The anti-rotation strap supplied with the actuator will prevent
lateral movement.
The AMB series provides 95° of rotation and a visual indicator
indicates position of the actuator. When reaching the damper
or actuator end position, the actuator automatically stops.
The gears can be manually disengaged with a button on the
actuator cover.
The AMB24-3… actuators use a sensorless Brushless DC
motor, which is controlled by an Application Specific
Integrated Circuit (ASIC). The ASIC monitors and controls
the actuator’s rotation and provides a digital rotation sensing
(DRS) function to prevent damage to the actuator in a stall
condition. Power consumption is reduced in holding mode.
The AMB24-3-S version is provided with 1 built-in auxiliary
switch. This SPDT switch is provided for safety interfacing or
signaling, for example, for fan start-up. The switching function
is adjustable 0 to 95°. The auxiliary switch is double insulated
so an electrical ground connection is not necessary.
Add on auxiliary switches or feedback potentiometers are
easily fastened directly onto the actuator body for signaling
and switching functions.
Dimensions
(All numbers in brackets are in millimeters.)
D122
O
M
L
©
O
A
H
B
r
r
o
u
t
s
o
h
M
l
e
s
C
s
D
5/16” to 1.05” [8 to 26]
2/5” to 1.05” [10 to 26]
2.2” [56]
3.46” [88]
®
2.49” [63.4]
5.47” [139]
1.18”
[30]
4.3” [109]
2” [50.8]
139
I20618 - Subject to change. © Belimo Aircontrols (USA), Inc.
AM
AMB24-3(-S)
On/Off-Floating Point Control, Non-Spring Return, Direct Coupled, 24 V
AMB24-3 - Typical Specification:
Floating point, on/off control damper actuators shall be electronic direct-coupled type, which require no crankarm and
linkage and be capable of direct mounting to a shaft up to
1.05” diameter. Actuators shall have Brushless DC motor
technology and be protected from overload at all angles of
rotation. Actuators shall have reversing switch and manual
override on the cover. If required, actuators shall be provided with one adjustable SPDT auxiliary switch. Actuators with
auxiliary switches must be constructed to meet the requirements for double insulation so an electrical ground is not
required to meet agency listings. Run time shall be constant
and independent of torque. Actuators shall be cULus listed,
have a 5-year warranty, and be manufactured under ISO
9001 International Quality Control Standards. Actuators
shall be as manufactured by Belimo.
Accessories
K-SA Reversible Clamp
ZG-100 Universal Mounting Bracket
ZG-101 Universal Mounting Bracket
ZG-103 Universal Mounting Bracket
ZG-104 Universal Mounting Bracket
Z-SMA AM/SM to AM Retrofit Mounting Bracket
ZG-NMA Crankarm Adaptor Kit
AV8-25 Universal Shaft Extension
ZG-JSA (-1, 2,3) Jackshaft Adaptors for Hollow Jackshafts
ZS-100 Weather Shield - Steel
ZS-150 Weather Shield - Polycarbonate
ZS-260 Explosion Proof Housing
ZS-300 (-1) (-5) NEMA 4X Housing
Tool-06 8 mm & 10 mm Wrench
PS-100 Actuator Power Supply Simulator
S1A, S2A Auxiliary Switch (es)
P370 Shaft Mount Auxiliary Switch
P…A Feedback Potentiometers
Note: When using AMB24-3… actuators, only use acces-
sories listed on this page.
W259
W260
On/Off
Auxiliary switch of AMB24-3-S
W258
Floating Point or On/Off control
Wiring
®
24 V AC Transformer
1
Line
Volts
a open
a closed
4
2
a
Blk (1) Common
Red (2) +
Wht (3) +
The indication of direction
is valid for switch position 1.
S1
S2
S3
NC
NO
0° to 95°
AMB24-3-S
10
3
4
–
AMB24-3
24 V AC Transformer
1
Line
Volts
The indication of direction
4
2
Blk (1) Common
Red (2) +
Wht (3) +
10
is valid for switch position 1.
Notes:
1
Provide overload protection and disconnect as required.
Actuators may also be powered by 24 VDC.
2
For end position indication, interlock control, fan startup,
3
etc., AMB24-3-S incorporates one built-in auxiliary
switches: 1 x SPDT, 3A (0.5A) @250 VAC, UL listed,
adjustable 0° to 95°.
Meets cULus requirements without the need of an
4
electrical ground connection.
–
AMB24-3
Loading...