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Air Flow Switch
This Control detects air flow or the absence of air flow in ducts, responding only to velocity of air movement. It has a One piece stainless steel paddle, which may be trimmed, if needed. Control supplied with mounting plate and gasket .
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Max. Air Temp
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180 F (82C)
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Max. Air Velocity
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2000 fpm (10 m/sec)
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Dimensions
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10 3/8" H (including paddle), 4" W, 2 3/4" D
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Specifications
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Paddle Width
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Paddle Width
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Minimum Air Velocity in FPM (m/sec) (required to Actuate Control)
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Horizontal Flow
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Vertical Flow (Upward)
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50 in² (323 cm² ) or larger Duct Area
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Less Than 50 in² (323 cm² ) Duct Area
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50 in² (323 cm² ) or larger Duct Area
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Less Than 50 in² (323 cm² ) Duct Area
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2 1/8"
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Increase (R to Y Closes)
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635 (3.2)
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575 (2.9)
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950 (4.8)
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750 (3.8)
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Decrease (R to B Closes)
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325 (1.7)
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220 (1.1)
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850 (4.3)
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575 (2.9)
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3 1/8"
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Increase (R to Y Closes)
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500 (2.5)
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350 (1.8)
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750 (3.8)
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500 (2.5)
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Decrease (R to B Closes)
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250 (1.3)
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100 (.5)
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650 (3.3)
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350 (1.8)
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Electrical Ratings
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Motor Rating in Amps.
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120 V.
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208 V
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240 V
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277 V
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Nominal Horsepower
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1.
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1
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1
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--
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A.C Full Load
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16.0
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8.8
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8.0
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--
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A.C Locked Rotor
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96.0
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52.8
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48.0
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--
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Non inductive or Resistance Load
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22.0*
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22.0*
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22.0*
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22.0*
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Pilot Duty - 125 VA. 120/277 V.A.C.
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