Model DFD-M150

APPLICATION

Model DFD-M150 is approved for use in walls, floors and partitions with fire resistance ratings less than 3 hours. This model carries a 11/2 hour UL fire damper label. UL 555 classifies dynamic rated fire dampers for use in HVAC systems that are operational in the event of fire.

Model DFD-M150 has also been tested in accordance with BS476 to 4 hours at Warrington Fire, UK, and is approved for fire partitions of 4 hours or less where British Standards are required.

CONSTRUCTION

Galvanized steel (in gauges required by UL listing R-13317)

INSTALLATION

All fire damper installations require the use of sleeves, angles and methods described in Greenheck Fire Damper Installation Instructions #452763, included with every damper shipment. Sleeves can be field fabricated or factory furnished as a complete damper/sleeve assembly. See Factory Sleeve Option below for details.

Dynamic Rated Fire Dampers

11/2 Hour Fire Resistance Rating (UL555)

4 Hour Fire Resistance Rating (BS476)

Model DFD-M150 meets the requirements for fire dampers established by:

National Fire Protection Association

(NFPA Standards 80, 90A & 101)

Underwriters Laboratories Standard 555 (Listing #R-13317)

BOCA National Building Codes

ICBO Uniform Building Codes (UBC Standard 43-7)

SBCCI Standard Building Codes New York City (MEA listing #260-91-M)

California State Fire Marshall (Listing #3225-981:102 for use in walls)

British Standard BS476

Tested to 4 hours at Warrington Fire, UK

“UL CLASSIFIED (see complete marking on product)” “UL CLASSIFIED to Canadian safety standards (see complete marking on product)”

Standard 555 (Listing #R13317)

		Features:
		• Stainless steel closure springs
		• Fusible links (69° C for BS476, 74°C standard
		for UL, 100°C available)
	*O	for UL, 100°C available)
H*		• Can be mounted horizontally or vertically.
H*

94mm

94mm	TYPE A

TYPE B

* These dimensions are furnished approximately 6mm undersize.

FACTORY SLEEVE OPTION

DFD-350 Fire Dampers are available in factory furnished sleeves. Sleeves are galvanized steel and are available in 1.0mm - 1.5mm thicknesses and lengths up to 914mm.

“K” dimension specifies location of damper within the sleeve. Minimum is 102mm, maximum is “L” less 102mm, which allows for mounting angle installation and duct connection at each end of sleeve. If “K” dimension is not specified, it will be provided as one half of “L” dimension (damper centered in sleeve).

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