Greenheck MBD-15 User manual

Document Number 464599
MBD-15
Extension Pin, Manual Quadrant Kit,
and Cable Operator Option
Note: For Dampers Installed In Ducts
Extended control shaft is installed from outside of duct
after damper is installed. Install as shown above.
Crossover blade
axle
DO NOT ATTACH
control shaft here
Tools Required:
5⁄16 in. hex nut driver
3⁄8in. electric drill
1⁄2in. open end wrench
Part Number 828599
No. Qty Description
1 1 Standoff bracket
2 1 Extension pin
3 1 Retaining clip
4 1 1⁄2in. Manual quadrant
5 1 Open and close labels
6 2 Tek screws
7 1 Washer
Table of Contents
Manual Quadrant Installation . . . . . . . . . . . . . 1
Cable Operator with Round Ceiling Cup . . . . . . . 2
Cable Operator with Wall/Ceiling Plate . . . . . . . . 3
Installation Instructions For Manual Quadrant
1
MBD-15
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
®

2MBD-15
Item Qty Description Part Number
1 1 Standoff bracket 651812
2 1 Extension pin 452509
3 1 Retaining clip 451738
4 1 Mounting plate 1036710
5 1 Cable operator 1036540
6 4 #10 Tek screw 415555
7 2 Cap screw 415474
8 2 Nut 415455
9 2 #14 Tek screw 417432
Tools Required:
5⁄16 in. driver
3⁄8in. driver
3⁄8in. electric drill
1⁄2in. drill bit
1⁄4in. bit driver
1⁄8in. hex key
5⁄64 in. hex key
Installation Instructions For Cable Operator and Round Ceiling Cup
Crossover blade
axle
DO NOT ATTACH
control shaft here
Caution
Standoff bracket with the washer is needed to
support the extended control shaft. If not installed as
directed, the extended control shaft may not operate
the damper correctly.
Before Installing Damper in the Duct
1. If damper has more than one blade, determine which blade axle will be driven by the extended control shaft.
Always attach extended control shaft to a blade axle which is directly connected to the main linkage tiebar. DO
NOT attach extended control shaft to a crossover blade axle.
2. Cut hole approximately 1 in. diameter in the duct where damper drive blade axle will be located. Hole must
provide clearance for enlarged portion of the extended control shaft.
After Damper is Installed in Duct
1. Push extended control shaft through the hole in the duct and onto drive blade axle. Retainer clip should “click”
into groove on the drive blade axle and hold shaft into place. Standard control shaft location is the third blade
from the bottom on dampers with three or more blades. Control shaft location is the first blade from the bottom on
dampers with one or two blades.
2. Install the stand off bracket with washer over the extended control shaft and screw bracket to the duct. Make sure
screws do not interfere with damper linkage or blade movement. Assemble manual quadrant to the extension
bracket assembly (screws provided).
3. With the damper either fully open or closed, lock manual quadrant to the extended control shaft so the manual
quadrant can move the damper between open or closed.
Note: Tighten down the bolt on manual quadrant to 250 in. lb. of torque.
4. Set the damper to the desired position and tighten wing nut on the manual quadrant to hold the damper in place.

3
MBD-15
Before Installing Damper in the Duct
1. If damper has more than one blade, determine which blade axle will be driven by the extended control shaft.
Always attach extended control shaft to a blade axle which is directly connected to the main linkage tiebar. DO
NOT attach extended control shaft to a crossover blade axle.
2. Cut hole approximately 1 in. diameter in the duct where damper drive blade axle will be located. Hole must
provide clearance for enlarged portion of the extended control shaft.
After Damper is Installed in Duct
1. Push extended control shaft through the hole in the duct and onto drive blade axle. Retainer clip should “click”
into groove on the drive blade axle and hold shaft into place. Standard control shaft location is the third blade
from the bottom on dampers with three or more blades. Control shaft location is the first blade from the bottom on
dampers with one or two blades.
2. Install the stand off bracket with provided cap screws, nuts, and #14 Tek screws.
3. Attach mounting plate to stand off bracket with (2) #10 Tek screws, as shown.
4. Attach cable operator to mounting plate with (2) #10 Tek screws, as shown.
5. Insert the end of the cable into the coupling on the cable operator. Tighten the set screw.
6. Use 1⁄4in. bit driver to rotate cable until set screws on cable operator gear are orientated such that they are
accessible with a hex key. Tighten set screws.
7. Run the cable to termination point and secure the cable
at 3 ft. intervals and every change in direction. Cables
should be taut or nearly taut with a 4 in. minimum turn
radius. For cable runs longer than 20 ft., use of conduit is
recommended on straight run sections.
8. Attach the mounting bracket to the structural member
such that the bottom of the bracket is flush with the top
of the ceiling. (Illustration A)
9. Drill a 1⁄2in. diameter hole in the ceiling location that lines
up with the centerline of the cable.
10. Use a 1⁄4in. bit driver to balance your damper.
11. Select the appropriate nylon cap to cover the opening,
depending on the ceiling thickness. (Illustration A)
Attach to exposed cable. Illustration A
Crossover blade
axle
DO NOT ATTACH
control shaft here
Tools Required:
5⁄16 in. driver
3⁄8in. driver
3⁄8in. electric drill
1⁄4in. bit driver
1⁄8in. hex key
5⁄64 in. hex key
Item Qty Description Part Number
1 1 Standoff bracket 651812
2 1 Extension pin 452509
3 1 Retaining clip 451738
4 1 Mounting plate 1036710
5 1 Cable operator 1036540
6 4 #10 Tek screw 415555
7 2 Cap screw 415474
8 2 Nut 415455
9 2 #14 Tek screw 417432
Installation Instructions For Cable Operator with Square Wall/Ceiling Plate

Before Installing Damper in the Duct
1. If damper has more than one blade, determine which blade axle will be driven by the extended control shaft.
Always attach extended control shaft to a blade axle which is directly connected to the main linkage tiebar. DO
NOT attach extended control shaft to a crossover blade axle.
2. Cut hole approximately 1 in. diameter in the duct where damper drive blade axle will be located. Hole must
provide clearance for enlarged portion of the extended control shaft.
After Damper is Installed in Duct
1. Push extended control shaft through the hole in the duct and onto drive blade axle. Retainer clip should “click”
into groove on the drive blade axle and hold shaft into place. Standard control shaft location is the third blade
from the bottom on dampers with three or more blades. Control shaft location is the first blade from the bottom
on dampers with one or two blades.
2. Install the stand off bracket with provided cap screws, nuts, and Tek screws.
3. Attach mounting plate to stand off bracket with (2) #10 Tek screws, as shown.
4. Attach cable operator to mounting plate with (2) #10 Tek screws, as shown.
5. Insert the end of the cable into the coupling on the cable operator. Tighten the set screw.
6. Use 1⁄4in. bit driver to rotate cable until set screws on cable operator gear are orientated such that they are
accessible with a hex key. Tighten set screws.
7. Run the cable to termination point and secure the cable at 3 ft. intervals and every change in direction. Cables
should be taut or nearly taut with a 4 in. minimum turn radius. For cable runs longer than 20 ft., use of conduit is
recommended on straight run sections.
8. Fasten ceiling/wall plate to framing at the termination point, aligning the depth so that the box is properly aligned
with the finished surface. (Illustration B)
9. For ceiling mount applications, use a 1⁄4in. bit driver to balance your damper.
10. For wall mount applications, move guide and bushing to
top knockout. Pull the cable out towards you to allow driver
access, then balance damper. Push the cable back in place
once balancing is complete.
11. Install cover plate.
Illustration B
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without notice.
Product warranties can be found online at Greenheck.com, either on the specific product page or in the
literature section of the website at Greenheck.com/Resources/Library/Literature.
Our Commitment
464599 • MBD-15, Rev. 9, October 2022 Copyright 2022 © Greenheck Fan CorporationGFC
®
Phone: [phone] • Fax: [phone] • : 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com