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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 (38°C).
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.
General Information
"UL CLASSIFIED (see complete marking on
product)"
"UL CLASSIFIED to Canadian safety standards
(see complete marking on product)"
Standard 555C (Listing #R13446)
These installation instructions show recommended
installation procedures. These or other installation
methods may be followed subject to the approval of the
authority having jurisdiction.
The CRD-300WT series dampers are classified to
function as a heat barrier in air handling penetrations
through fire resistive membrane ceilings. They are
intended to maintain the fire resistive integrity of the
ceiling. They can only be installed in conjunction with
the SP fan models shown and cannot be installed
alone.
NOTE: Motors for fan models used in conjunction with
CRD shall be equipped with thermal cut-off fuse
control.
2
485180 SP-AP0511W/L & CRD Installation
Damper Installation to a SP Fan
1. General: The fan/damper assemblies described in
these instructions, when installed as shown, provide
appropriate protection for approved floor/ceiling
designs rated up to one hour.
2. System Components: All system components
(ducts, duct drops, hanger wires, sleeves, and diffuser
pan) must be constructed of steel. The diffuser core
may be non-ferrous. Grilles may be non-metallic.
Flexible duct (if used) must be Class 1 or Class 0
type, bearing the UL listing mark. Maximum length of
flex duct shall not exceed 14 feet. The installations
and air devices shown in these instructions illustrate
general arrangement only. Installations must also
incorporate any specific requirements in the FRD (UL
Fire Resistance Directory). Note that both "Design
Information - General" and individual ceiling/floor or
ceiling/roof design listings apply.
3. Ceiling Penetrations: Ceiling penetration should
be located within ceiling tiles, panels, or gypsum
without necessitating cuts in the ceiling suspension
main runners, cross tees, or trusses. If required, a
maximum of one runner or cross tee may be cut
to enable proper damper location and installation.
Each cut end shall be supported by a minimum 12
SWG vertical hanger wire. a
be maintained between the air inlet/outlet and
the cut end of the runner or cross tee. Cutting of
wood trusses in combustible ceiling designs is not
permitted.
UL Classified
SP Fan Size
1 Hour Com-
bustible
SP-AP0511W
CRD-300WT
SP-AP0511WL
⁄
in. clearance must
1
2
CRD Model
Width
Height
(in.)
(in.)
10
⁄
10
⁄
3
3
8
8
®
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