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F62 Series
Airflow Switch (SPDT - contact
Unit)
Description
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.
Applications
A typical application includes air flow sensing in
make-up air and exhaust systems.
Features
- rugged steel enclosure
- easy access to wiring terminals
Electrical Ratings
|
Motor Ratings VAC |
120VAC |
208VAC |
240VAC |
277VAC |
|
Nominal Horsepower |
1 |
1 |
1 |
- |
|
AC Full Load Amp |
16.0 |
8.8 |
8.0 |
- |
|
AC Locked Rotor Amp |
96.0 |
52.8 |
48.0 |
- |
|
Non-Inductive or Resistance Load Amp |
22.01 |
22.01 |
22.01 |
22.01 |
|
Pilot Duty - 125 VA, 120/277VAC |
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 in2(323
cm2) Duct Area |
50 in2
(323 cm2) or Larger Duct Area |
Less than 50 in2(323
cm2) Duct Area |
|
2-1/8 |
Increase (R to Y Closes) |
625 (3.2) |
575 (2.9) |
950 (4.8) |
750 (3.8) |
|
Decreases (R to B Closes) |
325 (1.7) |
220 (1.1) |
850 (4.3) |
575 (2.9) |
|
3-1/8 |
Increase (R to Y Closes) |
500 (2.5) |
350 (1.8) |
750 (3.8) |
500 (2.5) |
|
Decreases (R to B Closes) |
250 (1.3) |
100 (0.5) |
650 (3.3) |
350 (1.8) |
1. These are only
approximations. Actual trip points are affected by air turbulence,
humidity, air density, air temperature, and other factors.
Selection Charts
|
Code Number |
Paddle Size in. |
Dimension |
Maximum Ambient Temp, °F (°C) |
Max. Air Velocity |
|
F62AA-8C1 |
2-1/8 in. x 6-7/8 in. |
10-3/8in. H (including paddle), 4 in. W, 2-13/16 in. D |
100 (40) |
2000 FPM (10m/sec) |
|
F62AA-9C |
3-1/8 in. x 6-7/8 in. |
10-3/8in. H (including paddle), 4 in. W, 2-13/16 in. D |
100 (40) |
2000 FPM (10m/sec) |
1. Replaces McDonnell Miller
AF-2.
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