Belimo ARB24-SR - ARX24-MFT95 Actuators, 0 to 135; Wiring Diagrams; INSTALLATION NOTES; APPLICATION NOTES

61
3.46"
[88]
B
A
Valve Nominal Size Dimensions (Inches [mm])
Valve Body nches DN [mm] A CCV-EXT
B661-B665
2½”
65
7.54” [192]
3.50” [89]
2.00” [50]
B677-B680
3”
80
7.93” [202]
3.75” [96]
2.00” [50]
Wiring Diagrams
Provide overload protection and disconnect as required.
CAUTION Equipment damage!
Actuators and controller must have separate transformers.
Consult controller instruction data for more detailed installation
information.
Resistor value depends on the type of controller and the number of
actuators. No resistor is used for one actuator. Honeywell resistor
kits may also be used.
To reverse control rotation, use the reversing switch.
W ARNIN G L IVE Electrical Components !
During installation, testing, servicing and troubleshooting of this product, it may
be 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.
ARX24-MFT95 Actuators, 0 to 135
Switch A
Switch B
Damper Position
Damper Open
Damper Closed
Dimensions with 2-Way Flanged Valve
1
3
4
O50905 - 05/12 - Subject to change. © Belimo Aircontrols (USA), Inc.
D151_A
The direction of rotation switch is set so tha t the fail safe position and the
position of the damper is closed with no signal at wire R.
1
24 VAC Transformer
Line
1 Common
Volts
2 + Hot
3
A
4
3 W
135
B
4 R
5 B
6 ‘U5’ Output 2-10 VDC
24 VAC Transformer
…MFT95
1
Line
1 Common
Volts
2 + Hot
3
A
4
W 3 W
Line
R
4 R
Volts B
B
5 B
2
Controller
6 ‘U5’ Output 2-10 VDC
… MFT95
Override
S963A
24 VAC
Minimum Position
Transformer
Potentiometer
1
Line
1 Common
Volts
2 + Hot
Series 90
5
Controller
B
R B
W
3 W
R
2
4 R
W
5 B
Shunting
Resistor
3
6 ‘U5’ Output 2-10 VDC
4
…M FT95
B R
W
H205 Change- Occupied
over Controller Contact
1
Line
1 Common
3
Volts
2 + Hot
5
2
3 W
4 R
5 B
6 ‘U5’ Output 2-10 VDC
To other
actuators …MFT95
Wiring multiple actuators to a
Series 90 controller using a
minimum position potentiometer.
1
24 VAC Transformer
Line
1 Common
Volts
2 + Hot
3
2
5
W
W B R 3 W
Series 90
R
4 R
Controller
B
5 B
Series 90 low limit control
6 ‘U5’ Output 2-10 VDC
135 for 0 to 50% control
…MFT95
280 for 0 to 100% control
Low Limit Control
1
24 VAC Transformer
Line
1 Common
Volts
2 + Hot
3
2
5
W
3 W
Series 90
R
4 R
Controller
B
R
W B
5 B
6 ‘U5’ Output 2-10 VDC
Series 90 high limit control - 280
…MFT95
High Limit Control