Wiring for Damper Actuators and Control Valves

1 Wiring forDamper Actuators and Control ValvesJuly 2011800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN2N40067 - 7/11 - Subject to change. Belimo Aircontrols (USA), : 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 fl exible read the controller manufacturer s installation literature carefully before making any connections.

2 Follow all instructions in this literature. If you have any questions, contact the controller manufacturer and/or (s)Belimo Actuators require a 24 VAC Class 2 transformer. The actuator enclosure cannot be opened in the fi eld, there are no parts or components to be replaced or repaired. EMC Directive: 2004/108/EC Software Class A: Mode of Operation Type 1 Low Voltage Directive: 2006/95/ECExample: 3 AF Actuators Supplied, 16 Ga. wire (refer to table on page 3)350 ft. (allowable wire length) 3 Actuators = 117 ft. maximum wire runCAUTION: 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 rectifi cation.

3 Some controllers use full wave rectifi cation. 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 rectifi 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 Polarity on the secondary of the transformer is strictly followed. This means that all No.

4 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 transformersMultiple Actuators positioned by the same Control signal may be powered from multiple transformers provided the following rules are followed:1. The transformers are properly All No. 1 wires from all Actuators are tied together and tied to the negative leg of the Control signal. See Wiring type and wire installation tipsFor most installations, 18 or 16 Ga. cable works well with Belimo Actuators . Review job requirements and determine whether a plenum or appliance rated cable is appropriate.

5 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 length for actuator installationKeep power wire runs below the lengths listed in the following tables. 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 Transformer SizingActuator SeriesVoltage Required VA Per ActuatorEFB, EFX2416 AFB, AFX2410AF2410 NFB, NFX249LF247TF245 GMB247 AMB / ARB246 NMB246 LMB / / GKR2421NK2422 AHK2420 General Wiring InstructionsWiring for Damper Actuators and Control Valves800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN3N40067 - 7/11 - Subject to change.

6 Belimo Aircontrols (USA), Size vs. Length of Run for Damper Actuators and Control Valves *Belimo Actuators and auxiliary switches are designed as a IEC protection class II, double insulated, and do not require an independent ground wire to earth, unless otherwise indicated in this document24 Distance between Actuator and Supply (feet)2017520020025080020025025011007018 1452202503254501101053253753754501150375 4504501200125162253503905007001651605006 0060070012006007007001400200143605506008 0011002752608009259253001255090010001125 1175440420112511501150500110 Distance between Actuator and Supply (feet)2017515017525035040018110265215375 3253753253003254506007501616541534557550 0575500450500700100011251427565054590080 0900800700800112511501175124401050895115 011251150112511251125220 Distance between Actuator and Supply (feet)2017515017525032540018801202152203 2537532530032545060075016125200345350500 5755004505007001000112514200300545550800 9008007008001125150011751231047589590011 251150112511251125wiregaugewiregaugewire gaugeVAVAVA800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN4N40067 - 7/11 - Subject to change.

7 Belimo Aircontrols (USA), Size vs. Length of Run for SY Series ActuatorsThe NEC mandates that 24 VAC over 100 VA power requires CLASS 1 Wiring conduit. Local codes may vary. Do NOT mix CLASS 1 & CLASS 2 circuits in the same conduit. Generally, 24 VAC Actuators over 100 VA should be changed to 120 VAC Distance between Actuator and Supply (feet)1892555516144878743401423314014070 6512357214214107991060636436418216889055 4354327125024 VACSY1SY2SY3SY4SY5SY6SY7SY8SY9SY10SY11SY 12 AmpsAmpsAmpsAmpsAmpsAmpsAmpsAmpsAmpsAmps AmpsAmpswire Distance between Actuator and Supply (feet)1815157587585835054212371892371892 5318916238111901190916794661372298372298 3972981438461923192314791282106860148160 1481641481125882294129412262196116349197 3591973598073510100005000500038463333277 8156312501563125016671250814925746374635 74149754146233218662332186624881866110 VACSY1SY2SY3SY4SY5SY6SY7SY8SY9SY10SY11SY 12 AmpsAmpsAmpsAmpsAmpsAmpsAmpsAmpsAmpsAmps AmpsAmpswire Distance between Actuator and Supply (feet)

8 1850513030303025252165189494775894775894 7689167937476247623968340129761488119014 8811901488108214128217692769264105495480 8240419232404192324041748121960811765117 6598048403735336762941367629413676267410 3333320000200001666714286125006250500062 5050006250454584975129851298512487621322 18657932874639328746393286784220 VAC800-543-9038 USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN5N40067 - 7/11 - Subject to change. Belimo Aircontrols (USA), for Damper Actuators and Control Valves On/Off, Spring Return, Electronic Fail-Safe, 24 VBlk (1) CommonRed (2) + Hot24 VAC TransformerLine Volts235 Actuators with plenum rated cable do not have numbers on wires; use color codes with appliance cables are may also be powered by 24 cULus requirements without the need of anelectrical ground : 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 NOTESAPPLICATION NOTESE quipment damage!

9 Actuators may be connected in parallel. Power consumption and input impedance must be observed. 2 CAUTIONI ndicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe and Cautions appear at appropriate sections throughout this manual. Read these IdentificationWARNINGLive 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 overload protection and disconnect as required.

10 1On/Off1324 VAC Transformera opena closed The indication of direction is valid for switch position (1) CommonRed (2) + Wht (3) +aLineVolts 105 NKQOn/Off1324 VAC TransformerBlk (1) CommonRed (2) + Hot Wht (3) +aLineVolts 5 GKY input1 Refer to page 26 for auxiliary switch (-S models) USA866-805-7089 CANADA203-791-8396 LATIN AMERICA / CARIBBEAN6N40067 - 7/11 - Subject to change. Belimo Aircontrols (USA), (1) NeutralBlk (2) HotWht NBlk HLine Volts2120 VAC230 VACUP models and TF120(-S) US uses L instead of H on #2 120 VAC, 230 VAC and UP Actuators use appliance (-S) US can be supplied with both 120 VAC and 230 cULus requirements without the need of anelectrical ground : EFB120(-S) EFX120(-S) AFBUP(-S) AFXUP(-S) AF120(-S) US/AF230(-S) US NFBUP(-S) NFXUP(-S) LF120(-S) US/LF230(-S) US TF120(-S) USINSTALLATION NOTESAPPLICATION NOTESE quipment damage!