Securing The Damper/Sleeve Assembly To Ceiling Openings - Greenheck CFSD Series Installation, Operation And Maintenance Manual

Securing the Damper/Sleeve Assembly to Ceiling Openings

Corridor damper and sleeve assemblies must be installed in fire rated ceiling openings using retaining angles on
each side of the ceiling as described below:
Installation of Configurations 1 & 2.
• Retaining angles must be a minimum of 20 ga. (1 mm) steel and have a minimum of 1
mm) legs on the ducted side of the installation and 1 in. x 2
register side.
• The 1 in. x 2 ⁄ in. (25 mm x 64 mm) angle may be mounted with the 2
1
2
Retaining angles
(See Section 3)
2 in. x 4 in. wood
or 2 in x 2 1/2 in.
steel studs
1 in. x 2 1/2 in. 16 ga.
angles either inside or
outside of sleeve
Configuration 1
Actuator in airstream only
Allows access to the actuator through the grille or
diffuser
Installation Configuration 3
• Retaining angles must be a minimum of 20 ga. (1 mm) steel with 1
• Retaining angle must be attached to the sleeve using:
- Tack or spot welds
- #10 sheet metal screws
- ⁄ in. (6 mm) bolts and nuts
1
4
- ⁄ in. (5 mm) steel pop rivets
3
16
The angles must be attached to all four sides of the sleeve with butt joints at
each corner. A minimum of two attachments are required on each side, top
and bottom. The angles may be attached to each other at the corners.
• Retaining angles must cover the clearance space between the sleeve and
the ceiling opening.
4 CFSD Series
7 1/2 in.
(191mm) max.
Grille (supplied by others)
Opening lined with UL
rated 5/8 in. gypsum
board (wood studs only)
1
⁄ in. (25 mm x 64 mm) legs on the diffuser, grille or
1
2
⁄ in. (64 mm) leg inside or outside the sleeve.
1
2
Retaining angle
(See Section 3)
2 in. x 4 in. wood
or 2 x 2 1/2 in.
steel studs
1 in. x 2 1/2 in. 16 ga.
angles either inside
or outside of sleeve
Configuration 2
Actuator in airstream or out of airstream
⁄ in. x 1 ⁄ in. (38 mm x 32 mm) legs.
1 1
2 4
Retaining angle
(See Section 3)
2 in. x 4 in. wood
or 2 x 2 1/2 in.
steel studs
Opening lined with UL
rated 5/8 in. gypsum
board (wood studs only)
Actuator in airstream or out of airstream
Actuator can be installed either above or
below ceiling construction
⁄ in. x 1 ⁄ in. (38 mm x 32
1
2 4
Grille (supplied by others)
Opening lined with UL
rated 5/8 in. gypsum
board (wood studs only)
Retaining angle
(See Section 3)
Configuration 3
®