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RECTANGULAR BYPASS SELECTION TABLE
Bypass air in CFM. Calculated at 1500 FPM.
Formula used: B = W x H / 144 x 1500, where B = Bypass air in CFM, W = damper width in inches, H = damper height in inches,
144 = 144 sq. inches per sq. ft., 1500 = 1500 FPM.
ROUND AND RECTANGULAR
BYPASS DAMPER MOTORS
SLAVING BYPASS DAMPERS
Use only one Pressure Sensor when slaving two or more
Bypass Dampers together. Connect the Pressure Sensor
to one damper as described above. Connect the slave
dampers in parallel as shown. Up to 4 dampers can be
slaved to one Sensor. The slaved dampers will self-
synchronize each time the dampers reach full open or full
close.
To Static Pressure Control, as shown on the Bypass
Wiring Diagram on the next page.
RC RO MC
RC RO MC
ACTUATOR
DAMPER
ACTUATOR
TO NEXT SLAVE
BYPASS DAMPER
IF APPLICABLE
To Next Page
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