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Round Dampers
6600 Series
Round Dampers
Aprilaire
®
round dampers come in all the sizes you
need and work well with either rigid metal or flex duct.
Adjustable blade positioning and an integrated foam
seal provide flexibility for any type of zone job.
Step Two: Select Zoned Comfort Control Dampers
• POWER-CLOSE/SPRING-OPEN OPERATION
• TWO WIRE INSTALLATION
• 24VAC, 6W, 10VA
• 60HZ SYNCHRONOUS TYPE MOTOR
• IMPEDANCE PROTECTED FOR CONTINUOUS STALL
• ADJUSTABLE STOP (IN CLOSED POSITION)
SPECIFICATIONS
19
REPLACEMENT PARTS
Model 6992 - Motor (gear shaft) for 18" and 20" round dampers and older Aprilaire
and PerfectTemp
™
round dampers. (Identified by metal actuator cover.)
Model 6993 - Motor (shaft with two flat sides) for all Flexible Link
™
style Aprilaire
round dampers. (Identified by plastic actuator cover.)
Nominal Diameter
Round Dampers
Size & Stock No.
6" 8” 10" 12" 14" 16" 18" 20"
(153mm) (200mm) (250mm) (300mm) (350mm) (400mm) (450mm) (500mm)
Zone (normally-open / power-close) 6606 6608 6610 6612 6614 6616 6618 6620
Ventilation (normally-closed / power-open) 6506 6508 — — — — — —
6500 Series
• POWER-OPEN/SPRING-CLOSE OPERATION
• TWO WIRE INSTALLATION
• 24VAC, 6W, 10VA
• 60HZ SYNCHRONOUS TYPE MOTOR
• IMPEDANCE PROTECTED FOR CONTINUOUS STALL
• ADJUSTABLE STOP (IN OPEN POSITION)
SPECIFICATIONS
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