Greenheck NF User Manual

Part #470321

Installation Instructions

Belimo AF/NF Actuator

21-1FBC-2, 11-1FBC-2, 21-2FHC-2,

11-2FVC-2 and 11-3FVC-2 Drive Arrangements

Installation, Operation, and Maintenance Instructions

This manual is the property of the owner, and is required for future maintenance.

Please leave it with the owner when the job is complete.

Drive Arrangement 21-1FBC-2

Drive Arrangement 11-1FBC-2

Note: This drawing depicts how the actuator looks after installation. The louver shown is intended to be a general representation and the actual louver model may vary. Reference the drawing on page 2 for an exploded view and parts list.

Drive Arrangement 21-2FHC-2

Drive Arrangement 11-3FVC-2Drive Arrangement 11-2FVC-2

SAFETY WARNING:

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

Prior to Adjusting

1. Louver MUST BE installed level and square for blades to operate correctly.

2. Install actuator and linkage similar to the drawing on page 1 and make the following linkage adjustments. Place ball swivel at initial location as show below. Adjust crankarm on the actuator so that it is parallel with linkage rod. If unit is “Fail Open” all adjustments will need to be made with the actuator in power on position

Note: At this time the blades should ﬂ op freely.

3. Loosen nut and bolt on actuator crankarm so that crank arm rotates freely by hand.

Adjustment Process

Note: Adjust actuators independently from each other if there is more

than one actuator.

1. With blades closed, rotate crankarm on actuator 1/8 turn toward louver from original starting point. Hold blade with ball swivel in closed position and tighten driver blade ball swivel to drive rod.

2. Rotate crankarm on actuator 1/8 turn back to original position. Tighten nut and bolt on crankarm. This will apply extra pressure to blade seals.

Caution: Before operating louver, make sure the ball swivel on the

crankarm is in the correct location. If the blades are not completely closing, the ball swivel can be adjusted SLIGHTLY. An over adjustment can cause damage to the blades.

Caution: Before operating the louver, make sure the location of the ball swivel

on the crankarm allows the proper travel length.

Item No. Part No. Qty. Description

1C 381598 Actuator AF-230

1D 381599 Actuator AF-230-S

1E 381085 Actuator AF-24

1F 381152 Actuator AF-24-S

1G 381150 Actuator AF-24-SR

1H 381600 Actuator AF-24-MFT

1J 381736 Actuator NF-24-SR

2 822966 1 Anti-Rotation Bracket Assembly

3 712711 1 Actuator Mounting Bracket

4 415455 1 1/4”-20 Nut Serrated Flange

5 451576 2 1/2” x 7/8” Shaft Collar

6 415034 1 1/4”-20x1/2” Serrated Flange Bolt

7 416122 1 Anti-Rotation Pin

8 812097 2 Crankarm Assembly

9a* 607797 1 1/2” Dia. Rod - 22”

9b** 607796 1 1/2” Dia. Rod - 16”

10 451554 4 1/4”-20 Ball Swivel

11 415991 5 Keps Hex Nut SS

12 451582 1 1/2” Flanged Ball Brg. No. PA-651-4

13 416010 4 #10-32x1 Threadstud SS

14 656473 2 5/16 Dia. Rod (16” Long)

* Drive Arrangement 21-1FBC-2 ** Drive Arrangements 11-1FBC-2, 21-2FHC-2, 11-2FVC-2 and 11-3FVC-2

381087

381151

1 Required

per Unit

Actuator AF-120

Actuator AF-120-S

It maybe necessary to adjust the swivel on the crankarm after the initial adjustments are made. This can be done by sliding the swivel in or out on the crankarm.

Sliding the swivel out on the crankarm

will cause the blade to open more.

Sliding the swivel in on the crankarm will

cause the blade to close more.

Belimo AF/NF Actuator, Part #470321

August 2007

Greenheck Fan Corporation reserves

the right to make product changes.