ERICO Bottom-Mount Duct Bracket Narrow User Manual
INSTRUCTION SHEET
CADDY® ROD LOCK
Bottom-Mount Duct Bracket, Narrow
Part Number
CRLD37BNEG
CRLDM8BNEG
CRLDM10BNEG
*Note: (4) screws are required for non-duct application.
**CRLD37BNEG (3/8") and CRLDM10BNEG (M10) were verified by
the SMACNA Testing and Research Institute to be acceptable
alternatives to the duct hanger systems prescribed in the
ANSI
/SMACNA HVAC Duct Construction Standards (HVAC-DCS)
®
3rd edition, Chapter 5, Tables 5-1 and 5-1M.
Article
Number
N/A
390024
390025
Rod Size
3/8"
M8
M10
Load Rating for
general applications*
( 3.0 safety factor)
1,400 lbs [6,200N]
650 lbs [2,900N]
1,400 lbs [6,200N]
Duct Height
Rectangular Duct Application
Max. Half of Duct
Perimeter***
P/2 = 30"
P/2 = 72"
P/2 = 96"
P/2 = 120"
P/2 = 168"
P/2 = 192"
***P/2 = (Duct Height) + (Duct Width)
3/8", M8, M10 Threaded Rod **
L = 10ft [3m]
--
-- --
-- --
"L" Dimension
"L" Dimension
L = 8ft [2.4m]
L = 5ft [1.5m]
3/4" [19mm]
Typical
Duct Width
+1-1/2" [38mm]
Step 0:
Rotate lock nut counter clockwise
until reaches stopping position.
Step 1:
Lift duct into place.
Hold in desired position.
WARNING:
ERICO products shall be installed and used only as indicated in ERICO product instruction sheets and training materials. Instruction sheets are available at
1.
www.erico.com
ERICO products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specified load ratings.
2.
All instructions must be
3.
Improper installation, misuse, misapplication or other failure to completely follow ERICO's instructions and warnings may cause product malfunction, property
4.
damage, serious bodily injury and death.
Products that are manufactured using spring steel components shall be used only in a non-corrosive indoor environment.
5.
All pipe supports, hangers, intermediate components and structural attachments must ONLY be used as described herein and are NEVER to be used for any
6.
other purpose.
NOTE: All load ratings are for static conditions and do not account for dynamic loading such as wind, water or seismic loads, unless otherwise noted.
The customer is responsible for:
a. Conformance to all governing codes.
b. The integrity of structures to which the products are attached, including their capability of safely accepting the loads imposed, as evaluated by a qualified
engineer.
c. Using appropriate industry standard hardware as noted above.
SAFETY INSTRUCTIONS:
All governing codes and regulations and those required by the job site must be observed.
Always use appropriate safety equipment such as eye protection, hard hat, and gloves as appropriate to the application.
ANSI is a registered trademark of American National Standards Institute.
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO International Corporation.
and from your ERICO customer service representative.
completely
Duct Width
Maximum open position
Step 2:
Install Duct Bracket by
pushing on to threaded rods.
followed to ensure proper and safe installation and performance.
TECHNICAL SUPPORT:
www.erico.com
CFS482_E
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© 2013, 2014 ERICO International Corporation.
INSTRUCTION SHEET
Step 3:
Position duct for assembly
Previously installed duct
Step 3-3:
Complete duct joint for:
Flange connection
or
Slip & Drive connection.
Step 4 (Option #1):
Install screws if no gap is present on sides.
No gap present if
bracket is pushed
toward side of duct
New duct
Step 3-1:
Tighten lock nut
Step 3-2:
Fine adjust duct height by wrench:
Clockwise = duct down
Counter-clockwise = duct up
First, install two (2) self-drilling screws
(included) to side surface of each bracket
Step 4 (Option #2):
Install screws if gap is present on sides.
Gap present if
bracket is pushed
toward side of duct
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO International Corporation.
Second, install two (2) self-drilling
screws (included) on the bottom
surface of each bracket
Install four (4) self-drilling screws (included)
on the bottom surface of each bracket.
TECHNICAL SUPPORT:
www.erico.com
CFS482_E
2 OF 2
© 2013, 2014 ERICO International Corporation.
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