Greenheck Fan Corporation - Products

Ceiling Radiation Dampers

Models are available in round or rectangular shapes with butterfly type blades or a curtain blade.

Model CRD

All models have been tested and are labeled in accordance with UL 555C, for protection of ceiling openings in floor/ceiling assemblies with fire resistance ratings of 3 hours or less. Models CRD-1 and CRD-2 are also Warnock Hersey listed for installation in 3-hour, non-combustible wood stud gypboard ceilings.

Downloadable Greenheck Literature
Viewable with the Adobe Acrobat Reader
(Click here for more information or to download the Acrobat reader)

UL Life Safety Damper Products Interactive Guide with Subittals (pdf)(30.11M)
UL Life Safety Damper Products Interactive Guide with Submittals

Installation, Operation and Maintenance Manuals:

Ceiling Radiation Damper (#453343) (175k)

Ceiling Radiation Damper; Warnock Hersey (#460637) (60k)

CRD-3XX and CRD-7XX Series for SP fans (#452832) (113k)

Specification Sheets:

Rectangular, Butterfly Style (CRD-1) (474k)

Rectangular, Butterfly Style, Warnock Hersey (CRD-1) (476k)

Rectangular, Low Profile Butterfly Style (CRD-1LP) (517k)

Rectangular, Low Profile Butterfly Style, Warnock Hersey (CRD-1LP) (488k)

Round, Butterfly Style (CRD-2) (531k)

Round, Butterfly Style, Warnock Hersey (CRD-2) (517k)

Rectangular, Curtain Blade Style (CRD-60) (475k)

Rectangular, Curtain Blade, Type B (CRD-60B) (475k)

Rectangular, Curtain Blade, with Insulation Skirt (CRD-60X) (462k)

Accessories:

Quilted Thermal Blanket (QB-24) (78k)

Mineral Wool Thermal Blanket (TB-24) (67k)

Volume Controller for CRD Series (156k)

Application Information:

UL Life Safety Damper Products Interactive Guide (30.57M)