Install Instructions

ManualsBrandsBelimo ManualsDampersSpring Return Fail-Safe, On/Off Damper Control Actuator, Direct Coupled - 24 VAC/DC (No Aux Switch)

Table Of Contents

800-543-9038 USA 866-805-7089 CANADA 203-791-8396 LATIN AMERICA

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Quick-Mount Visual Instructions for Mechanical Installatio

Quick-Mount Visual Instructions

1. Rotate the damper to its

ailsa

e position

If the shaft rotates counterclockwise, mount the “CCW” side of the actuator out

If it rotates clockwise, mount the actuator with the “

W” side out

2. I

the universal clamp is not on the correct side o

the actuator, move it to the correct side

or ease o

installation

3. Slide the actuator onto the shaft and tighten the nuts on the V-bolt with a 10mm 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 self-tapping screws

NOTE: Read the “Standard Mounting” instructions, on the next page, for more detailed information

Dimensions (Inches [mm])

CCW

min. 3 1/2” [90]

min. 3/4” [20]

CCW CW

35° ... 95°

/4"

[

6.35 mm

]

[

6.35 mm

]

[

6.35 mm

]

[

6.35 mm

]

Summary of content (10 pages)

PAGE 1
Installation Instructions 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 for ease of installation. 3.
PAGE 2
Installation Instructions K7-2 Universal Clamp M40024 - 05/10 - Subject to change. © Belimo Aircontrols (USA), Inc.
PAGE 3
Installation Instructions Mechanical Installation Determining Torque Loading and Actuator Sizing Mechanical Operation Damper torque loadings, used in selecting the correct size actuator, should be provided by the damper manufacturer. If this information is not available, the following general selection guidelines can be used. The actuator is mounted directly to a damper shaft up to 1.05” in diameter by means of its universal clamp.
PAGE 4
Installation Instructions Mechanical Installation 4. 5. 6. 7. 8. 9. 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 Figure C) and the spline pattern of the clamp mates with spline of the actuator. Slip the clamp over the spline. (Use the same procedure if the “CW” side is out.
PAGE 5
Installation Instructions Mechanical Installation Rotation Limitation The angle of rotation limiter, which is built into the actuator, is used in conjunction with the tab on the universal clamp or IND-AFB position indicator. In order to function properly, the clamp or indicator must be mounted correctly. See Figure A. The rotation limiter may not work in certain mounting orientations using the ZG-118 mounting bracket. Limiting the damper rotation must be accomplished by adjusting the crank arm linkage.
PAGE 6
Installation Instructions Mechanical Installation Manual Override Auxiliary Switches The NFB, NFXX series actuators can be manually positioned to ease installation or for emergency positioning. The NFB, NFX series actuators may be ordered with 2 built-in SPDT auxiliary switches used for safety interfacing or signaling, for example, for fan start-up. The switch position near the fail-safe position is fixed at 10°. The other is adjustable between 10° and 90° of rotation.
PAGE 7
Installation Instructions Non-Direct Mounting Methods KH AFB Crank KH-AFB C k arm Including Retaining Ring CAUTION:: The retaining clip supplied with the clamp is nott used to mount the KH-AFB crank arm. The KH-AFB crank arm is used in non-direct coupled mounting applications. The KH-AFB may also be used to simultaneously direct couple to a damper shaft and provide an additional crank arm connection to a second damper.
PAGE 8
Installation Instructions Electrical Operation General Control Accuracy and Stability The NFB, NFX series actuators utilize both DC Motors and brushless DC motor technology. The NFB, NFX uses this motor in conjunction with an Application Specific Integrated Circuit (ASIC). In the On/Off versions of the NFB and NFX, the ASIC monitors and controls the actuator’s rotation and a digital rotation sensing function to prevent damage to the actuator.
PAGE 9
Installation Instructions General Wiring Instructions 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.
PAGE 10
Startup and Checkout Instructions For NFB24-MFT, NFX24-MFT + P-100… NFB24-MFT, NFX24-MFT + P-100… Electrical Check-Out Procedure STEP Expected Response Does Not Give Expected Response Go To Step… Gives Expected Response Go To Step… 1. Control signal is applied to actuator. Actuator will move to its “Control Signal” position. Actuator operates properly Step 7. No response at all Step 2. Operation is reversed Step 3. Does not drive toward "Control Signal Position" Step 4. 2. Check power wiring.