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COMMERCIAL ROOM VENTILATOR –
WA, WH AND WL SERIES
FEATURES
•
One piece construction – easy to install with no
mechanical linkage adjustment required.
•
Exhaust air damper – built in with positive closed
position. Provides exhaust air capability to prevent
pressurization of tight buildings.
•
Actuator motor – 24 volt, power open, spring return
with built in torque limiting switch.
•
Provides up to 75 percent of outside air.
COMMERCIAL ROOM VENTILATOR
SEQUENCE OF OPERATION
On a call for blower operation, CRV opens to a
position as set by minimum position potentiometer. See
Figure 7.
FIGURE 7
CALL FOR BLOWER OPERATION
Manual 2100-458F
Page
17 of 18
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