Manual do usuário Greenheck Fan SSDFD-155

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Model SSDFD-155
Dynamic Rated Fire Dampers
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1 /2 Hour Fire Resistance Rating
100% Free Area - Sealed for High Pressure Systems
APPLICATION
Model SSDFD-155 is approved for use in walls, floors and
partitions with fire resistance ratings less than 3 hours.
Model SSDFD-155 meets the requirements for fire dampers
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This model carries a 1 /2 hour UL fire damper label. UL
established by:
555 classifies dynamic rated fire dampers for use in HVAC
National Fire Protection Association
syst

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SSDFD-155 Type CR, CO, C, & R Overall Damper Dimensions The following chart show minimum and maximum damper size. Dimensions are in inches (mm in parentheses). D*+2 Type CR Size Limitations O* 1 Type CR Type CO & C Type R* inches (mm) Minimum Maximum Minimum Maximum Minimum Maximum D* Single section 3 25 3 x 3 28 x 25 3 29 Vertical (76) (635) (76 x 76) (711 x 635) (76) (737) W*+2 Type CO *1 With 2 in. (50mm) offset. Sizes adjust with 0 offset & 1 in. (25mm) offset. O* H* W* Maximum Single S