KA2
Smoke Damper
Leakage Class II • Airfoil Blade • 250°F or 350°F • UL Classified Smoke Damper
STANDARD CONSTRUCTION
Frame
Frame Type
Blade
Blade Type
Axle materials
Axle Bearings
Linkage
Blade Seal
Jamb Seal
: 16-GA galvanized steel
: 5½" X ⅞" Galvanized steel Hat Channel
: 20-GA Double skin ( equivalent to 14-GA )
: Airfoil type
: Plated Solid Steel stub
: Oil impregnated bronze
: Plated steel angle & crank plates with stainless steel
pivots; In-jamb type or on-blade type
: Silicone
: Stainless steel
OPTIONS
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Exact Size (no undercut)
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Flange - Front, Rear or Both
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Actuators - 120V, 24V, 230V, Pneumatic
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Right Hand and/or Internal Actuator Mounting Locations (Restrictions Apply)
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Dual Position Indication (IDPI) Switches
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Model SM-501 Flow-Rated Smoke Detector
-
Model 2151 No-Flow Smoke Detector (12” Minimum Damper Height)
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Remote Test Box
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Momentary Test Switch
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Transformers
-
Tab-Lock Retaining Angles - 1 or 2 sets
-
Stainless Steel Bearings
-
Stainless Steel Axles
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Copper Tubing (pneumatic actuator)
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Sleeves of Various Depths and Gauge Thicknesses (restrictions apply)
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No Sleeve or Sideplate (restrictions apply)
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Round or Oval Transitions
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Security Bars
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Short-Width (<8”) and/or Short-Height (<6”) Transitions
NOTES
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Damper frames are provided approximately ¼” undersized. The addition of a sleeve will increase the size of the assembly.
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Dampers >= 12” in height with factory mounted SM-501 smoke detectors require a minimum 19” deep sleeve (10.5” on actuator side); detectors will be mounted on side of damper opposite actuator.
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Damper <12” in height with factory mounted SM-501 smoke detectors require a minimum 20” deep sleeve (11.5” on actuator side) and detectors will be mounted on bottom (or top) of damper.
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Smoke detectors can be ordered for field mounting with standard 18” deep sleeves.