Honeywell ARD Catalog Page
Zone Control Dampers
Automatic Round Damper (ARD)
Round damper with 24-volt, spring return damper motor used to
control volume of circulating air in heating, cooling, and ventilating
systems.
• Galvanized steel
• Single-blade damper
• Shipped as power closed/spring return open damper
for use with Honeywell Zoning Systems
• Can be field-converted to power open/spring return closed damper
when used as an independent zone or for fresh air intake
• Blade closes off tightly against gasket for minimal leakage
• Rated to operate up to 1 in. wc
• Available in 5, 6, 7, 8, 9, 10, 12, 14, 16, 18, and 20 in. diameter sizes
Application: Zone Damper
Voltag e: 24V
Wires to Motor: 2
Motor Timing: 30 seconds power open/10 seconds spring return
Other Motor Information: Range stops
Product Number Shape Size (in.) Motor Mount Motor Type Description
ARD5/U Round 5 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD6/U Round 6 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD7/U Round 7 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD8/U Round 8 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD9/U Round 9 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD10/U Round 10 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD12/U Round 12 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD14/U Round 14 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD16/U Round 16 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD18/U Round 18 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
ARD20/U Round 20 in. Diameter Top; Side Power closed, spring open, revers ble Spring Return Round Damper
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EARD Fresh Air Damper
The EARD is a round damper with a 24 Vac powered-open/springclosed motor. It is used for fresh air intake for ventilation or for
combustion makeup air.
• Adjustable damper position range stops
• Single-blade damper
• Shipped as power open/spring return closed damper
• Galvanized steel
• Quiet operation
• Can be field-converted to power closed/spring return open damper
• Blade closes off tightly against gasket for minimal leakage
• Male (crimped) and female (uncrimped) ends to connect to
any rigid or flexible round duct
Application: Fresh Air Damper
Voltag e: 24V
Wires to Motor: 2
Motor Timing: 30 seconds power closed/10 seconds spring return
Other Motor Information: Range stops
Product Number Shape Size (in.) Motor Mount Motor Type Description
EARD6/U Round 6 in. Diameter Top; Side Power open, spring closed, reversible Spring Return Round Damper
EARD8/U Round 8 in. Diameter Top; Side Power open, spring closed, reversible Spring Return Round Damper
70-6910 45
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