Cook Manufacturing Film Camera RCG User Manual

RCG / RCGH / RCA  
Galvanized and Aluminum Roof Curbs  
INSTALLATION, OPERATION, AND MAINTENANCE MANUAL  
This  
publication  
contains  
the  
installation  
When installing the roof curb, if the fan or gravity hood  
is to be installed at a later time, cover the curb to protect  
it from the elements. This includes covering the  
insulation, attentuators if applicable, and dampers.  
Curbs with liners need to be covered, as the liner is not  
weatherproof.  
instructions for galvanized and aluminum roof curbs.  
Hurricane roof curbs and lab exhaust roof curbs have  
special instructions.  
Cook roof curbs are designed for use with Cook  
units. For uses other than the intended design, it is  
responsibility of the engineer of record to determine  
suitability of the roof curb.  
Moisture can get trapped in the insulation and cause  
mold.  
Knockdown Curb Assembly Instructions:  
1. Place knockdown curb pieces on a flat surface with  
knockdown plates facing each other. Units with multiple  
splits will be identified near the knockdown plates. Be  
sure to match identification marks.  
2. Secure knockdown plates together at each split  
location with bolts and nuts in all holes provided in  
knockdown plates. If curb comes with an angle brace,  
install the brace with the uppermost bolt and nut on the  
knockdown plates.  
All of the publications mentioned above can be obtained  
from Loren Cook Company by phoning 417.869.6474,  
extension 166; by FAX at 417.832.9431; or by e-mail at  
For information and instructions on special equipment,  
contact Loren Cook Company at 417.869.6474.  
Receiving and Inspection  
Immediately upon receipt of a RCG / RCGH / RCA unit,  
carefully inspect it for damage and shortage.  
3. Caulk seams at all knockdown split locations.  
(See back page for drawing)  
Record on the Delivery Receipt any visible sign of  
damage.  
Handling  
Maintenance  
This roof curb does not require maintenance under  
normal use.  
Lift the roof curb by strap through the center.  
Storage  
If the unit is stored for any length of time prior to  
installation, cover the curb to protect it from the elements.  
This includes covering the insulation, attentuators if  
applicable, and dampers. Curbs with liners need to be  
covered, as the liner is not weatherproof.  
Moisture can get trapped in the insulation and cause  
mold.  
Installation  
CAUTION  
The attachment of roof mounted fans to the roof  
curb as well as the attachment of roof curbs to the  
building structure must exceed the structural  
requirements based on the environmental loading  
derived from the applicable building code for the  
site. The local code official may require variations  
from the recognized code based on local data. The  
licensed engineer of record will be responsible for  
prescribing the correct attachment based on  
construction materials, code requirements and  
environmental effects specific to the installation.  
Attachment methods vary depending on the job  
requirements and should be made per local code & / or local  
conditions, per the engineer of record.  
RCG / RCGH / RCA  
 

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