Greenheck ICD Installation Manual

Document Number 468333

®

ICD MODELS

Vertical and Horizontal Mount

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.

RECEIVING AND HANDLING

Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.

Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
100°F(37ºC).

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.

Due to continuing research, Greenheck reserves the right to change specifications without notice.

Pre-Installation Guidelines

The basic intent of a proper installation is to secure the volume control damper into the opening in such a
manner as to prevent distortion and disruption of damper operation. The following items will aid in completing
the damper installation in a timely and effective manner.

1) Check the schedules for proper damper locations within the building. Visually inspect the damper for
damage.

2) Lift or handle damper using sleeve or frame. Do not lift damper using
blades, linkage, actuators, or jackshafting. When handling multiple sections
assemblies, use sufficient support to evenly lift at each section mullion (see
drawing). Do not drag, step on, apply excessive bending, twisting, or racking.

3) Do not install screws in damper frame that will interfere with unexposed blade
linkage and prevent damper blades from opening and/or closing.

4) Damper must be installed into duct or opening square and free of twist or
other misalignment. Damper must not be squeezed or stretched into duct or
opening. Out of square, racked, twisted or misaligned installations can cause

Multi section dampers

excessive leakage and/or torque requirements to exceed damper/actuator
design.

5) Damper and actuator must be kept clean, dry and protected from dirt, dust and other foreign materials prior
to and after installation. Examples of such foreign materials include but are not limited to:

a) Mortar dust
b) Drywall dust
c) Firesafing materials
d) Wall texture
e) Paint overspray

6) Damper should be sufficiently covered as to prevent overspray if wall texturing or spray painting will be
performed within 5 feet (1.50m) of the damper. Excessive dirt or foreign material deposits on damper can
cause excessive leakage and/or torque requirements to exceed damper/actuator design.

7) ACCESS: Suitable access (actuators maintenance, etc.) must be provided for damper inspection and
servicing. Where it is not possible to achieve sufficient size access, it will be necessary to install a
removable section of duct.

Spreader Bar

Attachments

Electrical Guidelines

Electrical and/or pneumatic connections to damper actuators should be made in accordance with wiring and piping
diagrams developed in compliance with applicable codes, ordinances and regulations.

SAFETY CAUTION !

Verify power requirements before wiring

actuator. Greenheck is not responsible for

any damage to, or failure of the unit caused

by incorrect field wiring.

Electrical input may be needed for
this equipment. This work should be
performed by a qualified electrician.

SAFETY DANGER !

Installation - Failure to follow instructions will void all warranties

1, Duct opening or opening square should measure to the inside damper dimension and should be straight and

level.

2. A damper assembly is not restricted to a maximum number of sections, but must not exceed the section

sizes and overall sizes shown below.

Damper Model

ICD-44 48 in. W x 74 in. H

ICD-45 48 in. W x 74 in. H

Maximum

Single Section Size

(1219mm W x 1880mm H)

(1219mm W x 1880mm H)

Maximum

Multi-Section Size

144 in. W x 148 in. H

(3658mm W x 3759mm H)

144 in. W x 120 in. H

(3658mm W x 3048mm H)

6.000
O.C.

MAX.

Figure 1

Figure 2

3. The damper sections must be attached together with #10 x 3/4 inch (19mm) max. sheet metal screws,
1/4 inch (6mm) diameter nuts and bolts, tack or spot welds or 3/16 inch (4mm) diameter steel pop rivets.
Attachments must be spaced a maximum of 6 inch (152mm) on centers and a maximum of 2 inch (51mm)
from corners. Attachments must be made on front face and back face ( air entering and air exiting side) of
damper sections (see Figure 1 & 2).

4. If no holes are present in frame, drill 1/4 inch (6mm) diameter holes at 6 inch (152mm) centers and fasten
frames together with 1/4 inch (6mm) #20 (.03mm) bolts and nuts.

5. Brace at every horizontal mullion and vertically brace at every 8 feet (2.4m) of damper width for strength.
Dampers in high velocity (2000 fpm [610m per second]) may require more bracing. Note: Greenheck
dampers are specifically designed and engineered for structural integrity based on model and conditions.
Attachment, framing, mating flanges, and anchoring of damper assemblies into openings, ductwork, or walls
is the responsibility of the installer. Design calculations for these retaining and supporting members should
be determined by field engineers for that particular installation.

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