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Johnson Controls F62 Series AirFlow Switch, SPDT

AirFlow Switch, SPDT
F62 Series

This control detects air flow or the absence of air flow in ducts, responding only to the velocity of air movement. The one-piece stainless steel paddle can be trimmed, if necessary. The control is supplied with mounting plate gasket. The range adjusting screw permits field adjustment of flow rate setting.

• rugged steel enclosure
• easy access to wiring terminals

Select a link under the "item" tab below to order.

Cat #Paddle Size in.DimensionsMax Ambient Temp. °F (°C)Max. Air Velocity
F62AA-8C¹2-1/8 in. x 6-7/8 in.10-3/8 in. H (including paddle), 4 in. W, 2-13/16 in. D100 (40)2000 FPM (10 m/sec.)
F62AA-9C3-1/8 in. x 6-7/8 in.10-3/8 in. H (including paddle), 4 in. W, 2-13/16 in. D100 (40)2000 FPM (10 m/sec.)
Electrical Ratings Motor Ratings
Motor Ratings VAC120 208 240 277    
Nominal Horsepower 1 1 1    
AC Full Load A 16.0 8.8 8.0    
AC Locked Rotor A 96.0 52.8 8.0    
Non-Inductive or Resistance Load A 22.0¹ 22.0¹ 22.0¹ 22.0¹  
Pilot Duty – 125 VA, 120/277 VAC
1. SPST normally closed or normally open rating. SPDT rating is 16.0 amp
Air Velocity Required to Actuate Switch
Paddle Width (in.) Switch Actuation on Flow Minimum Air Velocity in FPM (m/sec) Required to Actuate Control¹
Horizontal Flow Vertical Flow (Upward)
50 in² (323 cm²) or Larger Duct Area Less than 50 in.² (323 cm²) Duct Area 50 in.² (323 cm²) or Larger Duct Area Less Than 50 in.² (323 cm²) Duct Area
2-1/8 Increase (R to Y Closes)

Decrease (R to B Closes)

625 (3.2)

325 (1.7)

575 (2.9)

220 (1.1)

950 (4.8)

850 (4.3)

750 (3.8)

575 (2.9)

3-1/8 Increase (R to Y Closes)

Decrease (R to B Closes)

500 (2.5)

250 (1.3)

350 (1.8)

100 (.5)

750 (3.8)

750 (3.8)

500 (2.5)

350 (1.8)

1. These are only approximations . Actual trip points are affected by air turbulence, humidity, air density, air temperature, and other factors


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