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Ceiling Radiation Dampers

UL 555C Classified

Ceiling radiation dampers (also called ceiling dampers) protect openings in the ceiling membrane of rated floor/ceiling and roof/ceiling assemblies. These are UL 555C Classified.

CRD-1

Rectangular design.

VIEW CRD-1
https://catalog-api.greenheck.com/api/product/en-us/202

CRD-1 (ETL)

ETL/Intertek listed (C#5005978) and UL tested to limit heat transfer through an opening in the ceiling membrane.

VIEW CRD-1 (ETL)
https://catalog-api.greenheck.com/api/product/en-us/197

CRD-1LP

Low profile for applications with limited blade clearance.

VIEW CRD-1LP
https://catalog-api.greenheck.com/api/product/en-us/199

CRD-1LP (ETL)

ETL/Intertek listed (C#5005978) for use in low-profile applications with limited blade clearance.

VIEW CRD-1LP (ETL)
https://catalog-api.greenheck.com/api/product/en-us/214

CRD-1WJ

Rectangular Design, Wood Joist Applications, UL 555C.

VIEW CRD-1WJ
https://catalog-api.greenheck.com/api/product/en-us/216

CRD-1WT

Features side inlet/outlet for use in wood truss applications.

VIEW CRD-1WT
https://catalog-api.greenheck.com/api/product/en-us/205

CRD-2

Round design.

VIEW CRD-2
https://catalog-api.greenheck.com/api/product/en-us/211

CRD-2 (ETL)

Round design and ETL/Intertek listed (C#5005978).

VIEW CRD-2 (ETL)
https://catalog-api.greenheck.com/api/product/en-us/449

CRD-2WT

Features top inlet/outlet in wood truss application

VIEW CRD-2WT
https://catalog-api.greenheck.com/api/product/en-us/452

CRD-501

Round design, leakage rated.

VIEW CRD-501
https://catalog-api.greenheck.com/api/product/en-us/442

CRD-60

Curtain-type blade design for use with square openings.

VIEW CRD-60
https://catalog-api.greenheck.com/api/product/en-us/445

CRD-60x

Curtain-type design manufactured with an attached insulation skirt.

VIEW CRD-60x
https://catalog-api.greenheck.com/api/product/en-us/552