Commercial Room Ventilator; W**A, W**H & W**L Series; Figure 6 Call For Blower Operation - Bard CRVS-3 Installation Instructions Manual

COMMERCIAL ROOM VENTILATOR –
W**A, W**H AND W**L SERIES
FEATURES
•
One piece construction – easy to install with no
mechanical linkage adjustment required.
• Exhaust air damper – built in with positive closed
position.
• Actuator motor – 24 volt, power open, spring return
with built in torque limiting switch.
• Provides up to 75 percent of outside air.
Manual 2100-448E
Page 12 of 13

COMMERCIAL ROOM VENTILATOR

SEQUENCE OF OPERATION
On a call for blower operation, CRV opens to position
as set by minimum position potentiometer. See
Figure 6.
FIGURE 6
CALL FOR BLOWER OPERATION