Greenheck Multi-blade Fire & Combination Fire Smoke Dampers Installation Booklet (826249) - Manual (Page 21)

Figure 2 cont....
Type B2- Vertical Mount, Duct Terminates
Flange Method
Type B2 - Horizontal Mount Below Floor/Wall, Duct
Terminates Flange Method
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
maximum Damper
Wood Stud
Masonry or
Concrete
Flange
Steel
Stud
7 1/2 in. (191mm)
maximum
Factory Supplied
Thermal Blanket
Flange
Masonry or
Concrete
Damper
Type B2- Vertical Mount, Thru Duct with
Two Retaining Angles
Type B2 - Horizontal Mount Above Floor/Wall,
Thru Duct with Two Retaining Angles
Type B2 - Horizontal Mount Below Floor/Wall, Thru
Duct with Two Retaining Angles
Wood
Stud
Masonry or
Concrete
7 1/2 in.(191mm)
Maximum
Retaining
Angle
Retaining
Angle
Damper
Factory Supplied
Thermal Blanket
Metal
Stud
Damper
Masonry or
Concrete
Retaining
Angle
Retaining
Angle
Factory Supplied
Thermal Blanket
7 1/2 in. (191mm)
maximum
7 1/2 in. (191mm)
maximum
Retaining
Angle
Retaining
Angle
Damper
Masonry or
Concrete
Factory Supplied
Thermal Blanket
21