Page 1
TF Series Spring Return Direct Coupled Actuator
Minimum 18 in-lb torque
L For damper areas up to 4.5 sq-ft*
Applications
Cost effective quality and performance
for a range of applications including:
s #LASSROOM5NIT6ENTILATORS
s &AN#OIL5NITS
s %CONOMIZER5NITS
s !IRHANDLERS
s #ONTROL$AMPERS
s 6!64ERMINAL5NITS
All Actuators
have BDCM
TF Series – At A glance
TF24 US (p. 96)
Torque: 18 in-lb
Power supply: 24 VAC/DC**
120 VAC
230 VAC
Control signal: On/Off
floating point
proportional 2 to 10 VDC
Multi-Function
Running time motor: <75 sec
< 30 sec
95 sec constant
Adj. 75 to 300 sec***
spring: <25 sec
External direction of rotation switch
Plenum rated cable
Appliance cable
Conduit fitting
Built-in auxiliary switch
General wiring ...............................(p. 113) Installation instructions ...........(p. 108-111)
Start-up and checkout .............(p. 114)
*Based on 4 in-lb/ft2 damper torque loading. Parallel blade. No edge seals. **Note: TF24-3 (-S) US is only 24 VAC. ***Default 150 seconds
LLLLLLLLLL
LL LLLLL
LLLLL
LLLL
LLLLLLLLLL
LLLLL L L
LLLLLLLLLL
TF24-S US (p. 96)
LLLLL
TF120 US (p. 98)
LLL
LLL
TF120-S US (p. 98)
TFC120-S US (p. 100)
L
TF24-3 US (p. 102)
LL
LLLL
LLLLL
LLL
TF24-3-S US (p. 102)
TF24-SR US (p. 104)
LL
TF24-SR-S US (p. 104)
TF24-MFT US (p. 106)
L
L
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
94
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
Page 2
A CLOSER LOOK…
L
Easy-to-adjust mechanical stop to limit damper rotation.
L
Cut labor costs with simple direct coupling.
Actuator Centers on 1/2” shaft.
L
Clockwise or counterclockwise fail-safe
mounting for fail-safe.
L
Compact size with the shortest shaft-center to edge
distance in the industry - 0.77”.
L
True mechanical spring return – the most reliable fail-safe.
L
Single line voltage model for on/off application has
100 to 240V (-15/+10%), 50/60 Hz supply power.
TF Series Spring Return Direct Coupled Actuator
L
Check damper position easily with clear position indicator.
L
Don’t worry about actuator burn-out.
Belimo is overload-proof throughout rotation.
L
Need to change control direction?
Do it easily with a simple switch (modulating actuators).
L
Built-in auxiliary switch is easy to use, offers feedback
or signal for additional device.
L
Microprocessor-controlled brushless DC motor
increases actuator life span and reliability, provides
constant running time (modulating actuators).
L
Rugged housing withstands rough handling in the
mechanical room.
L
3 ft. standard cable and conduit connector
(not shown) eases installation.
The Belimo Difference
L
Customer Commitment.
Extensive product range. Application assistance.
Same-day shipments. Free technical support. Five year warranty.
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
L
Low Installation and Life-Cycle Cost.
Easy installation. Accuracy and repeatability.
Low power consumption. No maintenance.
L
Long Service Life.
Components tested before assembly. Every product tested before shipment.
30 years direct coupled actuator design.
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
95
Page 3
TF24(-S) US
On/Off, Spring Return Fail-Safe, 24V
Technical Data TF24(-S) US
Power supply 24VAC ± 20%, 50/60Hz
Power consumption running 2 W
Transformer sizing 5 VA (class 2 power source)
Electrical connection
(-S models have 2 cables)
Overload protection electronic throughout 0 to 95° rotation
Angle of rotation max 95°, adjust. with mechanical stop
Torque min. 18 in-lb [2 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°
Running time motor < 75 sec (0 to 18 in-lb)
(nominal) spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
Humidity 5 to 95% RH non-condensing
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 type 2 / IP42, UL enclosure type 2
Housing material UL94-5VA
Agency listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA
Noise level (max) running < 50 db (A)
spring return 62 dB (A)
Servicing maintenance free
Quality standard ISO 9001
Weight TF24 1.4 lbs (0.6 kg)
TF24-S 1.5 lbs (0.7 kg)
† Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
TF24-S US
Auxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL Approved
24VDC ± 10%
holding 1.3 W
3 ft, 18 GA appliance cable
1/2” conduit connector
(0° spring return position)
< 60 sec @-22°F [-30°C]
E60730-1:02, CE acc. to 2004/108/EC (and
2006/95/EC for -S versions)
adjustable 0° to 95°
Torque min. 18 in-lb, for control of air dampers
Application
For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should
be done in accordance with the damper manufacturer’s specifications. Control is
On/Off from an auxiliary contact, or a manual switch.
The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in
diameter by means of its universal clamp, 1/2” shaft centered at delivery. A
crank arm and several mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0° to 90°.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode.
The TF24-S US versions are provided with 1 built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 0° and 95°.
SAFETY NOTE
Screw a conduit fitting into the actuator’s bushing. Jacket the actuator’s
input and output wiring with suitable flexible conduit. Properly terminate the
conduit in a suitable junction box.
Dimensions (Inches [mm])
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
6.28"
4.5"
[114]
[159.5]
0.43" [11]
0.2"
[5.2]
Standard:
1/4" to 1/2"
1/4" to 5/16"
3.0"
[76.2]
0.77" [19.5]
D096
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
96
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Page 4
TF24(-S) US
On/Off, Spring Return FailS-Safe, 24 V
Accessories
Tool-06 8mm and 10 mm wrench
KH-TF Crankarm for up to 1/2” round shaft
ZG-TF2 Crankarm adaptor kit for TF
ZG-TF112 Mounting bracket, kit for TF
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
NOTE: When using TF24 US and TF24-S US actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams, Please See Belimo Wiring Guide (pg 349).
Typical Specification
On/Off spring return damper actuators shall be direct coupled type which
require no crankarm and linkage and be capable of direct mounting to a shaft
up to a 1/2” diameter and center a 1/2” shaft. The actuators must be designed
so that they may be used for either clockwise or counterclockwise fail-safe
operation. Actuators shall be protected from overload at all angles of rotation.
If required, 1 SPDT auxiliary switch shall be provided having the capability of
being adjustable. Actuators with auxiliary switch must be constructed to meet
the requirements for Double Insulation so an electrical ground is not required
to meet agency listings. Actuators shall be cULus listed certified, have a 5 year
warranty, and be manufactured under ISO 9001 International Quality Control
Standards. Actuators shall be as manufactured by Belimo.
Wiring Diagrams
Provide overload protection and disconnect as required.
1
CAUTION Equipment damage!
2
Actuators may be connected in parallel.
Power consumption must be observed.
Actuators may also be powered by 24 VDC.
3
For end position indication, interlock control, fan startup, etc., TF24-S
4
US incorporates a built-in auxiliary switch: 1 x SPDT, 3A (0.5A) @250
VAC, UL Approved, adjustable 0 to 95.
Meets cULus requirements without the need of an electrical ground
connection.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
W567_08
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
On/Off wiring for TF24 US
W238_08
On/Off wiring for TF24-S US
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
97
Page 5
TF120(-S) US
On/Off, Spring Return Fail-Safe, 100 to 240 VAC
Technical Data TF120(-S) US
Power supply nominal 100 to 240 VAC, 50/60 Hz
tolerance 85 to 265 VAC, 50/60 Hz
Power consumption running 2.5 W
holding 1.3 W
Transformer sizing 5 VA (class 2 power source)
Electrical connection
(-S models have 2 cables)
Overload protection electronic throughout 0 to 95° rotation
Electrical protection actuators are double insulated
Angle of rotation max 95°, adjust. with mechanical stop
Torque min. 18 in-lb [2 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°
Running time motor < 75 sec (0 to 18 in-lb)
Humidity 5 to 95% RH non-condensing
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 type 2 / IP42, UL enclosure type 2
Housing material UL94-5VA
Agency listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA
Noise level (max) running < 50 db (A)
spring return 62 dB (A)
Servicing maintenance free
Quality standard ISO 9001
Weight TF120 1.4 lbs (0.6 kg)
TF120-S 1.5 lbs (0.7 kg)
† Rated Impulse Voltage 4kV, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
3 ft, 18 GA appliance cable
1/2” conduit connector
(0° spring return position)
spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
< 60 sec @-22°F [-30°C]
E60730-1:02, CE acc. to 2004/108/EC (and
2006/95/EC for -S versions)
Torque min. 18 in-lb, for control of air dampers
Application
For On/Off, fail-safe control of dampers in HVAC systems. Actuator sizing should
be done in accordance with the damper manufacturer’s specifications. Control is
On/Off from an auxiliary contact, or a manual switch.
The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in
diameter by means of its universal clamp, 1/2” shaft centered at delivery. A
crank arm and several mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0° to 90°.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode. The
actuator is double insulated so an electrical ground connection is not necessary.
The TF120-S US versions are provided with 1 built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 0° and 95°.
SAFETY NOTE
Screw a conduit fitting into the actuator’s bushing. Jacket the actuator’s
input and output wiring with suitable flexible conduit. Properly terminate the
conduit in a suitable junction box.
Dimensions (Inches [mm])
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
6.28"
4.5"
[114]
[159.5]
0.43" [11]
0.2"
[5.2]
Standard:
1/4" to 1/2"
1/4" to 5/16"
3.0"
[76.2]
0.77" [19.5]
D096
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
TF120-S US
Auxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL Approved
adjustable 0° to 95°
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
98
Page 6
TF120(-S) US
On/Off, Spring Return Fail-Safe, 100 to 240 VAC
Accessories
Tool-06 8mm and 10 mm wrench
KH-TF Crankarm for up to 1/2” round shaft
ZG-TF2 Crankarm adaptor kit for TF
ZG-TF112 Mounting bracket, kit for TF
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
NOTE: When using TF120 US and TF120-S US actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams, Please See Belimo Wiring Guide (pg 349).
Typical Specification
On/Off spring return damper actuators shall be direct coupled type which
require no crankarm and linkage and be capable of direct mounting to a shaft
up to a 1/2” diameter and center a 1/2” shaft. The actuators must be designed
so that they may be used for either clockwise or counterclockwise fail-safe
operation. Actuators shall be protected from overload at all angles of rotation.
If required, 1 SPDT auxiliary switch shall be provided having the capability of
being adjustable. Actuators must be constructed to meet the requirements
for Double Insulation so an electrical ground is not required to meet agency
listings. Actuators shall be cULus listed and have a 5 year warranty, and
be manufactured under ISO 9001 International Quality Control Standards.
Actuators shall be as manufactured by Belimo.
Wiring Diagrams
Provide overload protection and disconnect as required.
1
CAUTION Equipment damage!
2
Actuators may be connected in parallel.
Power consumption must be observed.
For end position indication, interlock control, fan startup, etc., TF120-S
4
US incorporate one built-in auxiliary switch: 1 x SPDT, 3A (0.5A)
@250 VAC, UL Approved, adjustable 0° to 95°.
Meets cULus requirements without the need of an electrical ground
connection.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
100 to 240 VAC
N L1
H L2
1 Neutral
2 Hot
W568
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
On/Off wiring for TF120 US
On/Off wiring for TF120-S US
TF120 US
2
W218_08
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
99
Page 7
TFC120-S US
On/Off, Spring Return Fail-Safe, 100-240 VAC
Technical Data TFC120-S US
Power supply nominal 100 to 240 VAC, 50/60 Hz
tolerance 85 to 265 VAC, 50/60 Hz
Power consumption running 3 W
holding 1.5 W
Transformer sizing 6 VA (class 2 power source)
Electrical connection Two 3 ft, 18 GA appliance cable
1/2” conduit connector
Overload protection electronic throughout 0 to 95° rotation
Electrical protection actuators are double insulated
Angle of rotation max 95°, adjust. with mechanical stop
Torque min. 18 in-lb [2 Nm]
Direction of rotation reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°
(0° spring return position)
Auxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL Approved
adjustable 0° to 95°
Running time motor < 30 sec (0 to 18 in-lb)
spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
< 60 sec @-22°F [-30°C]
Humidity 5 to 95% RH non-condensing
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 type 2 / IP42, UL enclosure type 2
Housing material UL94-5VA
Agency listings† cULus acc. to UL60730-1A/-2-14,
CAN/CSA E60730-1:02, CE acc. to 2004/108/
EC, and 2006/95/EC
Noise level (max) running < 56 db (A)
spring return 63 dB (A)
Servicing maintenance free
Quality standard ISO 9001
Weight 1.5 lbs (0.7 kg)
† Rated Impulse Voltage 4kV, Type of action 1.AA.B, Control Pollution Degree 3.
Torque min. 18 in-lb, for control of air dampers
Application
For On/Off fast running, fail-safe control of dampers in HVAC systems. Actuator
sizing should be done in accordance with the damper manufacturer’s
specifications. Control is On/Off from an auxiliary contact, or a manual switch.
The actuator is mounted directly to a damper shaft from 1/4” up to 1/2” in
diameter by means of its universal clamp, 1/2” shaft centered at delivery. A
crank arm and several mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0° to 90°.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode. The
actuator is double insulated so an electrical ground connection is not necessary.
The TFC120-S US versions are 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 between 0° and 95°.
SAFETY NOTE
Screw a conduit fitting into the actuator’s bushing. Jacket the actuator’s
input and output wiring with suitable flexible conduit. Properly terminate the
conduit in a suitable junction box.
Dimensions (Inches [mm])
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
6.28"
4.5"
[114]
[159.5]
0.43" [11]
0.2"
[5.2]
Standard:
1/4" to 1/2"
1/4" to 5/16"
3.0"
[76.2]
0.77" [19.5]
D096
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
100
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
Page 8
TFC120-S US
On/Off, Spring Return Fail-Safe, 100-240 VAC
Accessories
Tool-06 8mm and 10 mm wrench
KH-TF Crankarm for up to 1/2” round shaft
ZG-TF2 Crankarm adaptor kit for TF
ZG-TF112 Mounting bracket, kit for TF
ZG-TF113 Mounting bracket, kit for TF
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
NOTE: When using TFC120-S US actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams, Please See Belimo Wiring Guide (pg 349).
Typical Specification
On/Off spring return damper actuators shall be direct coupled type which
require no crankarm and linkage and be capable of direct mounting to a shaft
up to a 1/2” diameter and center a 1/2” shaft. The actuators must be designed
so that they may be used for either clockwise or counterclockwise fail-safe
operation. Actuators shall be protected from overload at all angles of rotation.
If required, 1 SPDT auxiliary switch shall be provided having the capability of
being adjustable. Actuators must be constructed to meet the requirements
for Double Insulation so an electrical ground is not required to meet agency
listings. Actuators shall be cULus listed and have a 5 year warranty, and
be manufactured under ISO 9001 International Quality Control Standards.
Actuators shall be as manufactured by Belimo.
Wiring Diagrams
Provide overload protection and disconnect as required.
1
CAUTION Equipment damage!
2
Actuators may be connected in parallel.
Power consumption must be observed.
For end position indication, interlock control, fan startup, etc., TFC-
4
20-S US incorporate one built-in auxiliary switch: 1 x SPDT, 3A (0.5A)
@250 VAC, UL Approved, adjustable 0° to 95°.
Meets cULus requirements without the need of an electrical ground
connection.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
W564_08
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
On/Off wiring for TFC120-S US
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
101
Page 9
TF24-3(-S) US
On/Off, Spring Return Fail-Safe, Reversible, Floating Point, 24V
Technical Data TF24-3(-S) US
Power supply 24 VAC ± 20%, 50/60 Hz
Power consumption running 2.5 W
holding 1 W
Transformer sizing 4 VA (class 2 power source)
Electrical connection
(-S models have 2 cables)
Overload protection electronic throughout 0 to 95° rotation
Input impedance 1000 7 (0.6w) control inputs
Electrical protection actuators are double insulated
Angle of rotation max 95°, adjust. with mechanical stop
Torque 18 in-lb [2 Nm]
Direction of rotation spring reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°
Running time motor 95 sec constant, independent of load
Humidity 5 to 95% RH non-condensing
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 type 2 / IP42, UL enclosure type 2
Housing material UL94-5VA
Agency listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA
Noise level (max) running < 35 db (A)
spring return 62 dB (A)
Servicing maintenance free
Quality standard ISO 9001
Weight TF24-3 1.4 lbs (0.6 kg)
TF24-3-S 1.5 lbs (0.7 kg)
† Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
3 ft, 18 GA plenum rated cable
1/2” conduit connector
motor reversible with built-in switch
(0° spring return position)
spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
< 60 sec @-22°F [-30°C]
E60730-1:02, CE acc. to 2004/108/EC,
(and 2006/95/EC for -S versions)
Torque min. 18 in-lb, for control of air dampers
Application
For modulation or On/Off 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 from 1/4” up to 1/2” in
diameter by means of its universal clamp, 1/2” shaft centered at delivery. A crank
arm and several mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.
Control is floating point from a triac or relay, or On/Off from an auxiliary contact
on a fan motor contactor, controller, or manual switch.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close-off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0 to 95°.
The TF24-3(-S) US uses a brushless DC motor which is controlled by an
Application Specific Integrated Circuit (ASIC) and a microprocessor. The
microprocessor provides the intelligence to the ASIC to provide a constant
rotation rate. The ASIC monitors and controls the brushless DC motor’s rotation
and provides a digital rotation sensing function to prevent damage to the
actuator in a stall condition. The actuator may be stalled anywhere in its normal
rotation without the need of mechanical end switches.
Power consumption is reduced in holding mode.
The TF24-3-S US version is provided with 1 built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 0° and 95°. The auxiliary
switch in the TF24-3-S US is double insulated so an electrical ground is not
necessary.
Dimensions (Inches [mm])
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
6.28"
4.5"
[114]
[159.5]
0.43" [11]
0.2"
[5.2]
Standard:
1/4" to 1/2"
1/4" to 5/16"
3.0"
[76.2]
0.77" [19.5]
D096
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
TF24-3-S US
Auxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL Approved
adjustable 0° to 95° (double insulated)
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
102
Page 10
TF24-3(-S) US
Line
Volts
The indication of direction is valid
for switch position CW.
Blk ( 1) Common
Red (2)
~
Wht (W3) ~
Or (W4) ~
24 VAC Transformer
TF24-3 (-S) US
b
CCW
CW
stop
a
(3) (4)
stop stop stop
Installation Side
Direction of Rotation Switch
x
x
x
x
x
x
x
x
xx
x
x
xx
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
CW
CCW
Switch
Positions
CCW
CW
a
b
7
Blk (1) Common
Red
(2) ~ Hot
Wht
(W3) ~
Or (W4) ~
ComHot
Controller
Line
Volts
TF24-3 (-S) US
The indication of direction
is valid for switch position CW.
2
24 VAC Transformer
7
Blk (1) Common
Red
(2) ~ Hot
Wht
(W3) ~
Or (W4) ~
ComHot
Controller
Line
Volts
TF24-3 (-S) US
The indication of direction is valid for switch position CW.
2
3
4
24 VAC Transformer
7
Blk (1) Common
Red
(2) ~ Hot
Wht
(W3) ~
Or (W4) ~
ComHot
Controller
Line
Volts
TF24-3 (-S) US
The indication of direction is valid for switch position CW.
2
4
24 VAC Transformer
Line
Volts
24 VAC Transformer
7
On/Off, Spring Return Fail-Safe, Reversible, Floating Point, 24V
Accessories
Tool-06 8mm and 10 mm wrench
KH-TF Crankarm for up to 1/2” round shaft
ZG-TF2 Crankarm adaptor kit for TF
ZG-TF112 Mounting bracket, kit for TF
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
NOTE: When using TF24-3(-S) US actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams, Please See Belimo Wiring Guide (pg 349).
Typical Specification
Floating point, On/Off spring return damper actuators shall be direct coupled
type which require no crankarm and linkage and be capable of direct mounting
to a shaft up to a 1/2” diameter and center a 1/2” shaft. The actuators must be
designed so that they may be used for either clockwise or counterclockwise
fail-safe operation. Actuators shall have an external direction of rotation switch to
reverse control logic. Actuators shall use a brushless DC motor and be protected
from overload at all angles of rotation. If required, 1 SPDT auxiliary switch shall
be provided having the capability of being adjustable. Actuators with auxiliary
switch 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 certified,
have a 5 year warranty, and be manufactured under ISO 9001 International Quality
Control Standards. Actuators shall be as manufactured by Belimo.
Wiring Diagrams
Installation Side
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
xx
x
x
x
x
xx
xx
x
x
x
x
xx
xx
x
x
CCW
Switch
Positions
a
(3) (4)
b
CW
Direction of Rotation Switch
CCW
CW
CW
stop
stop stop stop
CCW
Floating Point control
for TF24-3(-S) US
Auxiliary switch
of TF24-3(-S) US
S1
NC
S2
S3
NO
TF24-3-S US
W240
W241
5
0° to 95°
W242
2
3
4
5
7
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
CAUTION Equipment damage!
Actuators may be connected in parallel.
Power consumption must be observed.
The Common connection from the actuator must be connected to the
Hot connection of the controller.
The actuator Hot must be connected to the control board Common.
For end position indication, interlock control, fan startup, etc., TF243-S US incorporates one built-in auxiliary switch: 1 x SPDT, 3A (0.5A)
@250 VAC, UL Approved, adjustable 0° to 95°.
Actuators with plenum rated cable do not have numbers on wires; use
color coded instead. Actuators with appliance rated cable use numbers.
TF24-3-S US has an Orange wire #5 instead of #4.
Meets cULus requirements without the need of an electrical ground
connection.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
Triac source
W243
Triac sink
W244
Triac sink with separate transformers
103
Page 11
TF24-SR(-S) US
Proportional Damper Actuator, Spring Return Fail-Safe, 24 V for 2 to 10 VDC, or 4 to 20 mA Control Signal.
Torque min. 18 in-lb, for control of air dampers
Application
For proportional modulation 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 from 1/4” up to 1/2” in
diameter by means of its universal clamp, 1/2” shaft centered at delivery. A
crank arm and several mounting brackets are available for applications where the
actuator cannot be direct coupled to the damper shaft.
The actuator operates in response to a 2 to 10 VDC, or with the addition of a
500 7 resistor, a 4 to 20 mA control input from an electronic controller or
positioner.
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close-off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0 to 95°.
The TF24-SR (-S) US uses a brushless DC motor which is controlled by an
Technical Data TF24-SR(-S) US
Power supply 24 VAC ± 20% 50/60 Hz
Power consumption running 2 W
Transformer sizing 4 VA (class 2 power source)
Electrical connection
(-S models have 2 cables)
Overload protection electronic throughout 0 to 95° rotation
Operating range Y 2 to 10 VDC, 4 to 20mA
Input impedance 100 k7 (0.1 mA), 500 7
Angle of rotation max 95°, adjust. with mechanical stop
Torque 18 in-lb [2 Nm]
Direction of rotation spring reversible with cw/ccw mounting
Position indication visual indicator, 0° to 95°
Running time motor 95 sec constant, independent of load
Humidity 5 to 95% RH non-condensing
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 type 2 / IP42, UL enclosure type 2
Housing material UL94-5VA
Agency listings† cULus acc. to UL60730-1A/-2-14, CAN/CSA
Noise level (max) running < 35 db (A)
spring return 62 dB (A)
Servicing maintenance free
Quality standard ISO 9001
Weight TF24-SR 1.4 lbs (0.6 kg)
TF24-SR-S 1.5 lbs (0.7 kg)
† Rated Impulse Voltage 800V, Type of action 1.AA (1.AA.B for -S version), Control Pollution Degree 3.
24 VDC ± 10%
holding 1 W
3 ft, 18 GA plenum rated cable
1/2” conduit connector
motor reversible with built-in switch
(0° spring return position)
spring < 25 sec @-4°F to 122°F [-20°C to 50°C]
< 60 sec @-22°F [-30°C]
E60730-1:02, CE acc. to 2004/108/EC (and
2006/95/EC for -S versions)
Application Specific Integrated Circuit (ASIC) and a microprocessor. The
microprocessor provides the intelligence to the ASIC to provide a constant
rotation rate and to know the actuator’s exact fail-safe position. The ASIC
monitors and controls the brushless DC motor’s rotation and provides a digital
rotation sensing function to prevent damage to the actuator in a stall condition.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode.
The TF24-SR-S US version is provided with 1 built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 0° and 95°. The auxiliary
switch in the TF24-SR-S US is double insulated so an electrical ground in not
necessary.
Dimensions (Inches [mm])
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
4.5"
[114]
[159.5]
Standard:
1/4" to 1/2"
1/4" to 5/16"
3.0"
[76.2]
0.77" [19.5]
6.28"
0.43" [11]
0.2"
D096
[5.2]
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
TF24-SR-S US
Auxiliary switch 1 x SPDT 3A (0.5A) @ 250 VAC, UL Approved
adjustable 0° to 95° (double insulated)
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
104
Page 12
TF24-SR(-S) US
Proportional Damper Actuator, Spring Return Fail-Safe, 24 V for 2 to 10 VDC, or 4 to 20 mA Control Signal.
Accessories
Tool-06 8mm and 10 mm wrench
KH-TF Crankarm for up to 1/2” round shaft
ZG-TF2 Crankarm adaptor kit for TF
ZG-TF112 Mounting bracket, kit for TF
ZS-100 Weather shield (metal)
ZS-150 Weather shield (polycarbonate)
NOTE: When using TF24-SR (-S) US actuators, only use accessories listed on this page.
For Actuator Wiring Information and Diagrams, Please See Belimo Wiring Guide (pg 349).
Typical Specification
Spring return control damper actuators shall be direct coupled type which
require no crankarm and linkage and be capable of direct mounting to a shaft
up to a 1/2” diameter and center a 1/2” shaft. The actuator must provide
proportional damper control in response to a 2 to 10 VDC or, with the addition
of a 500 7 resistor, a 4 to 20 mA control input from an electronic controller or
positioner.The actuators must be designed so that they may be used for either
clockwise or counterclockwise fail-safe operation. Actuators shall use a brushless DC motor controlled by a microprocessor and be protected from overload
at all angles of rotation. Run time shall be constant, and independent of torque.
If required, 1 SPDT auxiliary switch shall be provided having the capability of
being adjustable. Actuators with auxiliary switch must be constructed to meet
the requirements for Double Insulation so an electrical ground is not required
to meet agency listings. Actuators shall be cULus listed certified, have a 5 year
warranty, and be manufactured under ISO 9001 International Quality Control
Standards. Actuators shall be as manufactured by Belimo.
Wiring Diagrams
24 VAC Transformer
Line
Volts
Control Signal
2 to 10 VDC
(–)
(+)
2 to 10 VDC control of TF24-SR(-S) US
Auxiliary switch of TF24-SR-S US
6
Blk (1) Common
Red (2) + Hot
Wht (3) Y Input, 2 to 10V
TF24-SR US
3
1
2
W245
W246_08
W247_08
CAUTION Equipment damage!
2
Up to 4 actuators may be connected in parallel. With 4 actuators wired
to one 500 7 resistor, a +2% shift of control signal may be required.
Power consumption must be observed.
Actuator may also be powered by 24 VDC.
3
Only connect common to neg. (–) leg of control circuits.
5
Actuators with plenum rated cable do not have numbers on wires; use
6
color codes instead.
For end position indication, interlock control, fan startup, etc., TF24-
7
SR-S US incorporates one built-in auxiliary switch: 1 x SPDT, 3A
(0.5A ) @250 VAC, UL Approved, adjustable 0° to 95°.
Meets cULus requirements without the need of an electrical ground
connection.
The ZG-R01 500 7 resistor converts the 4 to 20 mA control signal to
2 to 10 VDC.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
4 to 20 mA control of TF24-SR(-S) US
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
105
Page 13
TF24-MFT US
Proportional damper actuator, Spring Return Fail-Safe, Multi-Function Technology
s 4ORQUEMININLB
s #ONTROLTO6$#$EFAULT
s &EEDBACKTO6$#$EFAULT
Application
For proportional modulation of dampers in HVAC systems. Actuator sizing should
be done in accordance with the damper manufacturer’s specifications.
Default/Configuration
Default parameters for 2 to 10 VDC applications of the TF24-MFT US actuator are
assigned during manufacturing. If required, custom versions of the actuator can
be ordered. The parameters noted in the Technical Data table are variable.
These parameters can be changed by three means:
s0RESETCONFIGURATIONSFROM"ELIMO
s#USTOMCONFIGURATIONSFROM"ELIMO
s#ONFIGURATIONSSETBYTHECUSTOMERUSINGTHE-&40#TOOLSOFTWAREAPPLICATION
Operation
The TF series actuators provide true spring return operation for reliable fail-safe
application and positive close-off on air tight dampers. The spring return system
provides consistent torque to the damper with, and without, power applied to the
Technical Data TF24-MFT US
Power supply 24 VAC, ± 20%, 50/60 Hz
24 VDC, ±10%
Power consumption running 2.5 W
holding 1 W
Transformer sizing 4 VA (Class 2 power source)
Electrical connection 3 ft, 18 GA, plenum rated cable
1/2” conduit connector
Overload protection electronic throughout 0 to 95° rotation
Operating range Y* 2 to 10 VDC
4 to 20 mA (w/500 7, 1/4 7 resistor) ZG-R01
Input impedance 100 k7 for 2 to 10 VDC (0.1 mA)
500 7 for 4 to 20 mA
1500 7 for PWM, Floating point and
On/Off control
Feedback output U* 2 to 10 VDC, 0.5 mA max
Torque min 18 in-lb (2 Nm)
Direction of rotation* spring reversible with cw/ccw mounting
motor reversible with built-in switch
Mech. angle of rotation* max 95°, adjust with mechanical stop
Running time motor* 150 sec constant independent of load
spring <25 sec @-4°F to 122°F [-20°C to 50°C]
<60 sec @-22°F [-30°C]
Angle of Rotation Adaptation* Off (Default)
Override control* Min. (Min Position) = 0%
- ZS (Mid. Position) = 50%
- Max. (Max. Position) = 100%
Position indication visual indicator, 0° to 95°
Humidity 5 to 95% RH, non-condensing
Ambient temperature -22 to 122° F (-30 to 50° C)
Storage temperature -40 to 176° F (-40 to 80° C)
Housing NEMA 2, IP42, UL enclosure type 2
Housing material UL 94-5VA
Noise level (max) <35 dB (A)
spring return <65 dB (A)
Agency listings cULus acc. to UL60730-1A/-2-14,
CAN/CSA E60730-1:02,
CE acc. to 2004/108/EC
Quality standard ISO 9001
Servicing maintenance free
Weight 1.4 lbs. (0.6 kg)
* Variable when configured with MFT options
† Rated Impulse Voltage 800V, Type of action 1.AA, Control Pollution Degree 3.
actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0 to 95°.
The TF24-MFT US uses a brushless DC motor which is controlled by an
Application Specific Integrated Circuit (ASIC) and a microprocessor. The
microprocessor provides the intelligence to the ASIC to provide a constant
rotation rate and to know the actuator’s exact fail-safe position. The ASIC
monitors and controls the brushless DC motor’s rotation and provides a digital
rotation sensing function to prevent damage to the actuator in a stall condition.
The actuator may be stalled anywhere in its normal rotation without the need of
mechanical end switches. Power consumption is reduced in holding mode.
SAFETY NOTE
Screw a conduit fitting into the actuator’s bushing. Jacket the actuator’s
input and output wiring with suitable flexible conduit. Properly terminate the
conduit in a suitable junction box.
Dimensions (Inches [mm])
Standard:
1/4" to 1/2"
1/4" to 5/16"
®
D191
0.68" [16.7]
3.30"
[83.72]
2.40"
[61]
6.28"
[159.5]
3.0"
[76.2]
0.77" [19.5]
4.5"
[114]
0.43" [11]
0.2"
[5.2]
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
106
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
Page 14
Proportional damper actuator, Spring Return Fail-Safe, Multi-Function Technology
Wiring Diagrams
Provide overload protection and disconnect as required.
1
CAUTION Equipment damage!
2
Actuators may be connected in parallel if not mechanically mounted to the
same shaft. Power consumption and input impedance must be observed.
Actuators may also be powered by 24 VDC.
3
The ZG-R01 500 7 resistor may be used.
WARNING Live Electrical Components!
During installation, testing, servicing and troubleshooting of this product, it maybe
necessary to work with live electrical components. Have a qualified licensed electrician
or other individual who has been properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical safety precautions when exposed to live
electrical components could result in death or serious injury.
TF24-MFT US
®
W024_08
Standard Wiring
Override to Zero PositionOverride to 10V PositionOverride control to min, mid, max, positions
W025_08
Standard Wiring
Override to Zero PositionOverride to 20 mA Position
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
4 to 20 mA control signal
2 to 10 VDC control signal
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
107
Page 15
Installation Instructions
ZDB-TF
min 3/4”
[20]
min 3/4”
[20]
ZDB-TF
Quick-Mount Visual Instructions for Mechanical Installation
Quick-Mount Visual Instructions
1. Rotate the damper to its failsafe position. If the shaft rotates counterclockwise, mount the “CCW” side of the actuator out. If it rotates clockwise,
mount the actuator with the “CW” side out.
2. If the universal clamp is not on the correct side of the actuator, move it to the
correct side.
3. Slide the actuator onto the shaft and tighten the nuts on the V-bolt with an
8mm wrench to 6-8 ft-lb of torque.
4. Slide the anti-rotation strap under the actuator so that it engages the slot
at the base of the actuator. Secure the strap to the duct work with #8 selftapping screws.
NOTE: Read the “Standard Mounting” instructions, on page 92, for more
detailed information.
Dimensions (Inches [mm])
Standard
Mounting
min. 3-5/16”
[80]
1/4” to1/2”
[6-12]
min 3-5/16”
[84]
Preliminary Steps
1. Belimo actuators should be mounted indoors in dry, relatively clean environment free from corrosive fumes. If the actuator is to be mounted outdoors,
a protective enclosure must be used to shield the actuator. (See Mechanical
Accessories Section)
2. For new construction work, order dampers with extended shafts. Instruct
the installing contractor to allow space for mounting and service of the
Belimo actuator on the shaft.
3. For standard mounting, the damper shaft must extend at least 3 1/2" from
the duct. If the shaft extends less than 3 1/2", the actuator may be mounted
in its short shaft configuration.
Short Shaft
Mounting
min. 3/4”
[20]
1/4” to 1/2”
[6-12]
108
min 3-5/16”
[84]
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
Page 16
Mechanical Operation
The actuator is mounted directly to a damper shaft up to 1/2” in diameter by
means of its universal clamp. A crank arm and several mounting brackets are
available for applications where the actuator cannot be direct coupled to the
damper shaft.
The TF series actuators provide true spring return operation for reliable failsafe application and positive close-off on air tight dampers. The spring return
system provides consistent torque to the damper with, and without, power
applied to the actuator.
The TF series provides 95° of rotation and is provided with a graduated position
indicator showing 0 to 95°.
The TF…-S versions are provided with 1 built-in auxiliary switch. This SPDT
switch is provided for safety interfacing or signaling, for example, for fan startup. The switching function is adjustable between 0° and 95°.
Standard Mounting / Airtight Damper Procedure
1. See Figure B. Manually move the damper to the fail-safe position (a)
(usually closed). If the shaft rotated counterclockwise ( ), this is
a CCW installation. If the shaft rotated clockwise (
installation. In a Left Hand installation, the actuator side marked “CW”
faces out, while in a CW installation, the side marked “CCW” faces out. All
other steps are identical.
2. The actuator is usually shipped with the universal clamp mounted to the
“CW” side of the actuator. To test for adequate shaft length, slide the
actuator over the shaft with the side marked “CW” (or the “CCW” side if
this is the side with the clamp). If the shaft extends at least 1/8” through
the clamp, mount the actuator as follows. If not, go to the Short Shaft
Installation section.
3. If the clamp is not on the correct side as determined in step #1, re-mount
the clamp as follows. If it is on the correct side, proceed to step #5. Look
at the universal clamp. If you are mounting the actuator with the “CCW”
side out, position the clamp so that the pointer section of the tab is pointing
to 0° (see Fig. C) and the spline pattern of the clamp mates with spline of
the actuator. Remount the stroke limiter to this side then slip the clamp
over the spline. (Use the same procedure if the “CW” side is out.)
4. See Remounting the Stroke Limiter after the section Short Shaft Mounting
with IND-TF Position Indicator.
5. Lock the clamp to the actuator using the retaining clip.
6. Verify that the damper is still in its full fail-safe position. (a)
7. Mount the spring return actuator to the shaft. Tighten the universal clamp,
finger tight only.
8. Mount the anti-rotation strap at the base of the actuator. Do not tighten the
screws.
9. Remove the screw from one end of the mounting bracket and pivot it away
from the actuator.
10. Loosen the universal clamp and, making sure not to move the damper
shaft, rotate the actuator approximately 5° in the direction which would
open the damper.
11. Tighten the universal clamp to the shaft.
12. Rotate the actuator to apply pressure to the damper seals (b) and re-engage
the anti-rotation strap (c).
13. Tighten all fasteners.
), this is a CW
Installation Instructions
Mechanical Installation
min 3-5/16”
[84]
FIGURE B – Standard Mounting (Dimensions in Inches [mm])
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
FIGURE C – Universal Clamp
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109
Page 17
ZDB-TF
min 3/4”
[20]
Installation Instructions
Mechanical Installation
Short Shaft Mounting with
IND-TF Position Indicator / Airtight Damper Procedure
If the shaft extends at least 3/4” from the duct, follow these steps:
1. (See Figure D) Move damper blades to the fail-safe position (a).
2. Determine the best orientation for the universal clamp on the back of the
actuator. The best location would be where you have the easiest access to
the V bolt nuts on the clamp.
3. Engage the clamp to the actuator as close as possible to the determined
location.
4. Lock the clamp to the actuator using the retainer clip.
5. Mount the spring return actuator to the shaft. Tighten the universal clamp,
finger tight only.
6. Mount the anti-rotation strap at the base of the actuator. Do not tighten the
screws.
7. Remove the screw from one end of the mounting bracket and pivot it away
from the actuator.
8. Loosen the universal clamp and, making sure not to move the damper
shaft, rotate the actuator approximately 5° in the direction which would
open the damper.
9. Verify that the damper is still in its full fail-safe position.
10. Tighten the universal clamp to the shaft.
11. Rotate the actuator to apply pressure to the damper seals (b) and reengage the anti-rotation strap (c).
12. Tighten all fasteners.
13. Use IND-TF accessory if position indication is needed.
Remounting the Stroke Limiter
1. Remove the stroke limiter by
inserting a small screwdriver, like
the one shown, and gently prying
upward. This procedure takes
very little force. See Figure 1.
2. While holding the back eye-let,
unscrew the end-stop so that eyelet separates from the end-stop.
3. Flip the limiter over, so the teeth
point the other direction. Replace
the eye-let and end-stop.
4. Flip the actuator over to the
opposite side (this reverses the
spring return direction of the
actuator). Replace the stroke
limiter assembly by inserting
the first two teeth as shown in
the orange circle. Then press
the stroke limiter into place
by pushing downward on the
adjustable stop.
5. Replace clamp and retaining clip.
FIGURE 1
FIGURE D – Standard Mounting (Dimensions in Inches [mm])
110
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA
Page 18
Installation Instructions
Mechanical Installation
Operational Information for TF Actuators
Initialization of the TF24-SR (-S) US
When power is applied, the internal microprocessor recognizes that the
actuator is at its full fail-safe position and uses this position as the base
for all of its position calculations. This procedure takes approximately
15 seconds. During this time you will see no response at the actuator.
The microprocessor will retain the initialized zero during short power
failures of up to 25 seconds. When power is applied during this period,
the actuator will return to normal operation and proceed to the position
corresponding to the input signal provided. For power failures over 25
seconds, the actuator will be at its fail-safe position and will go through
the start up initialization again.
Motor position detection TF24-SR (-S) US
Belimo brushless DC motors eliminate the need for potentiometers for positioning. Inside the motor are three “Hall Effect” sensors. These sensors
detect the spinning rotor and send pulses to the microprocessor which
counts the pulses and calculates the position to within 1/3 of a revolution
of the motor.
Overload protection
The TF, On/Off actuators are electronically protected against overload. The
TF, On/Off actuator have an internal current limiter which maintains the
current at a safe level which will not damage the actuator while providing
adequate holding torque.
The TF24, modulating, actuators (TF24-SR (-S) US, TF24-3 US) are
protected against overload by digital technology located in the ASIC. The
ASIC circuitry constantly monitors the rotation of the brushless DC motor
inside the actuator and stops the pulsing to the motor when it senses a
stall condition. The motor remains energized and produces full rated
torque during stall conditions. The actuator will try to move in the direction of the stall every 2 minutes, for a period of 32 minutes. After this, the
actuator will try again every 2 hours.
Mechanical Angle of Rotation Limiting
The TF actuators are provided with an adjustable stop to limit the rotation of the
actuator. This function works in conjunction with the universal clamp or the
optional position indicator. The adjustable stop is needed when rotation of less
than 95° is required. The TF actuator can be indefinitely stalled, in any position,
without harming the actuator.
37...100%
Using the Universal Clamp
1. Loosen the end stop fastening screw using a #2 Phillips screwdriver.
2. Move the stop block so the bottom edge of the block lines up with the number
corresponding to the desired degrees of rotation. (example: 45 degrees of
rotation = .5)
3. Lock the block in place with the fastening screw.
4. Check the actuator for proper rotation.
Using the IND-TF Position Indicator with Adjustable Stop
NOTE: preferred method if short shaft mounting is used.
1. With the actuator in its fail-safe position, place the IND-TF Position Indicator
so that it points to the 0 degree position.
2. Loosen the end stop fastening screw using a #2 Phillips screwdriver.
3. Move the stop block so the bottom edge of the block lines up with the number
corresponding to the desired degrees of rotation (example: 45 degrees of
rotation = .5).
4. Lock the block in place with the fastening screw.
5. Check the actuator for proper rotation.
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
Direction of Rotation Switch
TF24-3 (-S) US and TF24-SR (-S) US actuators have a direction of rotation
switch on the cover labeled “CW-CCW”. Switch position indicates start point.
For the TF24-SR, with the switch in position “CW”, the actuator rotates clockwise with a decrease in voltage or current. With the switch in position “CCW”,
the actuator rotates counterclockwise with a decrease in voltage or current.
The TF24-3 (-S) US and TF24-SR (-S) US actuators rotate clockwise when the
switch is in the “CW” position and power is applied to wire #3. When power is
applied to wire #4 the actuator rotates counter clockwise.
Rotating the direction of rotation switch to “CCW” reverses the control logic.
During checkout, the switch position can be temporarily reversed and the actuator will reverse its direction. This allows the technician a fast and easy way to
check the actuator operation without having to switch wires or change settings
on the controller.
placed back to its original position.
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When the check-out is complete, make sure the switch is
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Page 19
Installation Instructions
Mechanical Installation
Auxiliary Switches
The …-S model actuators are equipped with an adjustable auxiliary switch used
to indicate damper position or to interface additional controls or equipment.
Switching positions can be set over the full 0 to 95° rotation simply by setting a
switch on the actuator.
1. Set desired switch position.
(Example 60%)
2. As the actuator rotates, the switch
indicator moves from .6 (60%)
toward 0 (0%).
0
.2
.4
S2
S1
S3
.6
S2
S1
.8
1
S3
Switch Rating
Voltage Resistive load Inductive load
250 VAC 3 A 0.5 A
Control Accuracy and Stability
TF24-SR US actuators have built-in
brushless DC motors which provide
better accuracy and longer service life.
The TF24-SR US actuators are designed with a unique non-symmetrical
deadband. The actuator follows an increasing or decreasing control signal with a 80 mV resolution. If the signal changes in the opposite direction, the actuator will not respond until the control signal changes by 200
mV. This allows these actuators to track even the slightest deviation very
accurately, yet allowing the actuator to “wait” for a much larger change in
control signal due to control signal instability.
TF Actuator responds to a 80 mV signal when
not changing direction from stop position.
Satisfied
Control Position
80 mV
Minimum
Control Resolution
Non-Direct Mounting Methods
ZG-TF2 Crankarm Adaptor Kit
KG6
TF Actuator responds to a 200 mV signal when
reversing direction from stop position.
Minimum Reversed
Control Deadband
Prior to Normal Control
SH8
KG6
Dimensions (Inches [mm])
200 m
3.15"
[81]
V
1.59"
[40.5]
Control Position
Satisfied
[19.5]
[18]
0.43"
[11]
0.77"
0.71"
0.43"
[11]
TF_install
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112
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Page 20
Installation Instructions
General Wiring
WARNING The wiring technician must be trained and experienced with
electronic circuits. Disconnect power supply before attempting any wiring
connections or changes. Make all connections in accordance with wiring
diagrams and follow all applicable local and national codes. Provide disconnect
and overload protection as required. Use copper, twisted pair, conductors only.
If using electrical conduit, the attachment to the actuator must be made with
flexible conduit.
Always read the controller manufacturer's installation literature carefully
before making any connections. Follow all instructions in this literature. If
you have any questions, contact the controller manufacturer and/or Belimo.
Transformers
The TF24 . . actuator requires a 24 VAC class 2 transformer and draws a
maximum of 5 VA per actuator. The actuator enclosure cannot be opened in the
field, there are no parts or components to be replaced or repaired.
– EMC directive: 89/336/EEC
– Software class A: Mode of operation type 1
– Low voltage directive: 73/23/EEC
CAUTION It is good practice to power electronic or digital controllers from a
separate power transformer than that used for actuators or other end devices.
The power supply design in our actuators and other end devices use half wave
rectification. Some controllers use full wave rectification. When these two
different types of power supplies are connected to the same power transformer
and the DC commons are connected together, a short circuit is created across
one of the diodes in the full wave power supply, damaging the controller. Only
use a single power transformer to power the controller and actuator if you know
the controller power supply uses half wave rectification.
Multiple Actuators, One Transformer
Multiple actuators may be powered from one transformer provided the following rules are followed:
1. The TOTAL current draw of the actuators (VA rating) is less than or equal to
the rating of the transformer.
2. Polarity on the secondary of the transformer is strictly followed. This means
that all No. 1 wires from all actuators are connected to the common leg on
the transformer and all No 2 wires from all actuators are connected to the
hotleg.
Mixing wire No. 1 & 2 on one leg of the transformer will result in
erratic operation or failure of the actuator and/or controls.
Multiple Actuators, Multiple Transformers
Multiple actuators positioned by the same control signal may be powered from
multiple transformers provided the following rules are followed:
1. The transformers are properly sized.
2. All No. 1 wires from all actuators are tied together and tied to the negative leg
of the control signal. See wiring diagram.
Wire Length for LF... Actuators
Keep power wire runs below the lengths listed in the table in Figure A. If more
than one actuator is powered from the same wire run, divide the allowable wire
length by the number of actuators to determine the maximum run to any single
actuator.
Example for TF24-SR US: 3 actuators, 16 Ga wire
550 Ft ÷ 3 Actuators = 183 Ft. Maximum wire run
TF24(-S) US / TF120(-S) US Maximum Wire Length
Wire Size Max. Feet. Wire Size Max. Feet
12 Ga 1300 Ft. 18 Ga 575 Ft.
14 Ga 1175 Ft. 20 Ga 300 Ft.
16 Ga 900 Ft. 22 Ga 150 Ft.
TF24-3(-S) US Maximum Wire Length
Wire Size Max. Feet. Wire Size Max. Feet
16 Ga 1125 Ft. 20 Ga 400 Ft.
18 Ga 725 Ft. 22 Ga 200 Ft.
TF24-SR(-S) US Maximum Wire Length
Wire Size Max. Feet. Wire Size Max. Feet
12 Ga 1800 Ft. 18 Ga 450 Ft.
14 Ga 1100 Ft. 20 Ga 275 Ft.
16 Ga 700 Ft. 22 Ga 125 Ft.
FIGURE A
Wire Type and Wire Installation Tips
For most installations, 18 or 16 Ga. cable works well with the TF24… actuators.
Use code-approved wire nuts, terminal strips or solderless connectors where
wires are joined. It is good practice to run control wires unspliced from the
actuator to the controller. If splices are unavoidable, make sure the splice can
be reached for possible maintenance. Tape and/or wire-tie the splice to reduce
the possibility of the splice being inadvertently pulled apart.
The TF24… proportional actuators have a digital circuit that is designed to ignore most unwanted input signals (pickup). In some situations the pickup may
be severe enough to cause erratic running of the actuator. For example, a large
inductive load (high voltage AC wires, motors, etc.) running near the power or
control wiring may cause excessive pickup. To solve this problem, make one or
more of the following changes:
1. Run the wire in metallic conduit.
2. Re-route the wiring away from the source of pickup.
3. Use shielded wire (Belden 8760 or equal).
ground. Do not connect it to the actuator common.
Ground the shield to an earth
Brushless DC Motor Operation
Belimo's brushless DC motor spins by reversing the poles of stationary
electromagnets housed inside rotating permanent magnets. The electromagnetic poles are switched by a microprocessor and a special ASIC (Application
Specific Integrated Circuit) developed by Belimo. Unlike the conventional DC
motor, there are no brushes to wear or commutators to foul.
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
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113
Page 21
Startup and Checkout
Instructions For TF24-SR(-S) US
TF24-SR(-S) US Electrical check-out procedure
STEP Procedure Expected Response
1. Remove power to reset actuator.
Re-apply power.
Apply control signal to actuator.
2. Check power wiring. Correct any
problems. See Note 1.
3. Turn reversing switch to the correct
position. Make sure the switch is
turned all the way left or right.
4. Make sure the control signal positive
(+) is connected to Wire No 3 and
control signal negative (-) is connected to wire No. 1. Most control
problems are caused by reversing
these two wires. Verify that the
reversing switch is all the way CCW
or CW.
5. Check input signal with a digital volt
meter (DVM). Make sure the input
is within the range of the actuator.
For TF24-SR US this is 2 to 10 VDC
or 4 to 20 mA. Note: The input signal must be above the 2 VDC or 4
mA to have the actuator move.
6. Loosen the nuts on the V-bolt and
move the damper by hand from fully
closed to fully open.
7. Check damper torque requirement. Torque requirement is actuator’s
8. Actuator works properly. Test
controller by following controller
manufacturer's instructions.
Actuator will move to its “Control
Signal” position.
Power supply rating should be > the
total power requirement of the
actuator(s). Minimum voltage of
19.2 VAC or 21.6 VDC.
Actuator will move to its “Control
Signal” position.
Drives to “Control Signal” position. Actuator operates properly Step 8. Step 5.
Input voltage or current should be
±1% of what controller's adjustment
or programming indicate.
Damper will go from fully closed to
fully open.
minimum torque.
Gives Expected Response
Go To Step…
Actuator operates properly Step 8. No response at all Step 2.
Power wiring corrected, actuator
begins to drive Step 1.
Actuator operates properly Step 8. Does not drive toward “Control
Controller output (actuator input) is
correct. Input Polarity Correct
Step 6.
Damper moves
properly Step 7.
Defective Actuator.
Replace Actuator - See Note 2.
Operation is reversed Step 3.
Does not drive toward "Control
Signal Position" Step 4.
Power wiring corrected, actuator still
does not drive Step 4.
Signal Position” Step 4.
Reprogram, adjust repair or replace
controller as needed Step 1.
Find cause of damper jam and repair.
Move damper back to the fully
closed position and tighten the nuts
Step 1.
Recalculate actuator requirement and
correct installation.
Does Not Give
Expected Response
Go To Step…
NOTE 1 Check that the transformer(s) are sized properly.
s )FACOMMONTRANSFORMERISUSEDMAKESURETHATPOLARITYISOBSERVEDONTHESECONDARY4HISMEANSCONNECTALL.OWIRESTOONELEGOFTHETRANSFORMER
and all No. 2 wires to the other leg of the transformer.
s )FMULTIPLETRANSFORMERSAREUSEDWITHONECONTROLSIGNALMAKESUREALL.OWIRESARETIEDTOGETHERANDTIEDTOCONTROLSIGNALNEGATIVE
s #ONTROLLERSANDACTUATORSMUSTHAVESEPARATE6!#6$#POWERSOURCES
NOTE 2 If failure occurs within 5 years from original installation date, notify Belimo and give details of the application.
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114
K20901 - 01/09 - Subject to change. © Belimo Aircontrols (USA), Inc.
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