800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA / CARIBBEAN
5
N40067 - 7/11 - Subject to change. © Belimo Aircontrols (USA), Inc.
Wiring for Damper Actuators and Control Valves
On/Off, Spring Return, Electronic Fail-Safe, 24V
Blk (1) Common
Red (2) + Hot
24 VAC Transformer
Line
Volts
2 3 5
Actuators with plenum rated cable do not have
numbers on wires; use color codes instead.
Actuators with appliance cables are numbered.
3
Actuators may also be powered by 24 VDC.
5
Meets cULus requirements without the need of an
electrical ground connection.
Actuators: EFB24(-S) EFX24(-S) AF24(-S) US NFB24(-S) NFX24(-S) LF24(-S) US
TF24(-S) US GKB24-3 GKX24-3 NKQB24-1 NKQX24-1
INSTALLATION NOTES
APPLICATION NOTES
Equipment damage!
Actuators may be connected in parallel. Power
consumption and input impedance must be observed.
2
CAUTION
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. It may also be used to
alert against unsafe practices.
Warnings and Cautions appear at appropriate sections throughout
this manual. Read these carefully.
Hazard Identification
WARNING
Live 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.
On/Off
A
W236_11
Provide overload protection and disconnect as required.
1
On/Off
1 3
24 VAC Transformer
a open
a closed
The indication of direction
is valid for switch position 1.
Blk (1) Common
Red (2) +
Wht (3) +
a
Line
Volts
–
10
5
NKQ
On/Off
1 3
24 VAC Transformer
Blk (1) Common
Red (2) + Hot
Wht (3) +
a
Line
Volts
–
5
GK
Y input
1
Refer to page 26 for auxiliary switch (-S models) wiring.
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