Part #470318
Installation Instructions
Invensys 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.
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.
®
Item No. Part No. Qty. Description
1A
1B
1C 380708 Actuator MA-405 120V
1D 380722 Actuator MA-405-500 120V
1E 380713 Actuator MA-318 24V
1F 380721 Actuator MA-318-500 24V
1G 380709 Actuator MA-418 120V
1H 380723 Actuator MA-418-500 120V
2 650766 1 Actuator Mounting Bracket
3 415034 3 1/4-20 X .75 HH ZP MS
4 415455 3 1/4-20 X Spinlock Nut ZP
5 812097 4 Crankarm Assembly
6 416010 4 #10-32 X 1 Threadstud SS
7 451554 6 Ball Swivel 1/4-20 SS
8 656473 3 5/16 Dia. Rod Galv. 16” Long
9 415991 4 #10-32 SS Keps Nut
10 451576 2 1/2” X 7/8” Shaft Collar
11a* 607797 1 1/2” Dia. Rod - 22”
11b** 607796 1 1/2” Dia. Rod - 16”
12 451582 2 1/2” Flgd. Ball Brg. NO. PA-641-4
* Drive Arrangement 21-1FBC-2
** Drive Arrangements 11-1FBC-2, 21-2FHC-2, 11-2FVC-2 and 11-3FVC-2
380712
380720
Actuator MA-305 24V
Actuator MA-305-500 24V
1 Required
per Unit
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.
Copyright © 2007 Greenheck Fan Corporation
Invensys Actuator, Part #470318
August 2007
Greenheck Fan Corporation reserves
the right to make product changes.