4 1/4" Vertical Mount Fire Damper 2633-36X24 Step Down Ceiling Diffuser HVL Series Engineering/Performance Data

HVL Series Engineering/Performance Data

Blades parallel to shortest dimension

102C - corner

2-way reversible door on rectangular sizes

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4 1/4" Vertical Mount Fire Damper 2633-36X24 Step Down Ceiling Diffuser HVL Series Engineering/Performance Datah3. Standard Features * 2633 Square or rectangular out of airstream fire damper for vertical mount only. * 2634 Square or rectangular Spring actuated (6) out of airstream fire damper for horizontal or vertical mount. * UL and California State Fire Marshall approved * 4 1 4" standard frame style * Maximum dimension 60w, 52h * Interlocking steel roll formed blade (3) with roll formed frames (1) * Blade lock (5) * Damper manufactured from corrosion