Brochure

12
Motorized Dampers
MODEL ND
MODEL ND-RSD
Old Fashion
Reliability With
NEW State of the
Art Technology
ND SERIES DAMPERS
The ND series of Ultra-Zone dampers was designed with the installer and home-
owners in mind. This damper is easy to install and easy to checkout. The LED
display allows the installer to visually check the damper operation. With a stur-
dier frame, the damper installs in the duct much faster and easier and the nylon
bushings insure quieter operation. This is a feature that homeowners will never
hear about! Quieter operation and a longer life motor equals NO call backs.
The motor for the ND damper is driven by 17 in. lbs. of torque, possesses a
manual gear release, 3 wire power open/power closed operation and fail-safe
LED’s for quick diagnostic checks. The motor is UL listed and NEMA Class 2
certified. The easy access, quick connecting terminal block eliminates the need
for wire nuts and allows for trouble free use.
The ND damper has a 97% leak proof rating. Overlapping blades and a strong
positive shut-off motor insures accurate control of all zones. The ND dampers
combined with an Ultra-Zone zoning system provides the most comfortable and
reliable system in the industry.
The ND is available in 8” x 6” thru 30” x 30” in even inch increments. The
motor will be mounted on the second dimension when ordered. For example, a
16” x 8” damper will have the motor mounted on the 8” dimension, while an 8”
x 16” will have the motor mounted on the 16” dimension. This will alleviate the
confusion between side mount and bottom mount dampers.
For added flexibility, ND dampers can also be provided with a spring return
style motor. Model ND-RSD. The ND-RSD is driven by 5” lbs. of torque.
Note: Specify “spring closed” or “spring open” when ordering
Duct Board Adapters
The brackets are used to mount ND and ND-RSD style dampers to fiberglass duct
boards. The brackets are 1” thick. Add the number “5” to the part number for 1.5”
thick duct board. (Ex. DBA-10-5)
• HeavyDutyFrame
• NylonBushingsforQuieter
Operation
• RevolutionaryMotorwithgreater
Reliability
• LED’stoShowDamper
Operation
• LowLeakage
• Simple3-wireHook-up
• Motorisalwaysmountedon
second dimension specified
Model List Price Model List Price
DBA-6” $24.00 DBA-16” $48.00
DBA-8” 26.00 DBA-18” 50.00
DBA-10” 30.00 DBA-20” 52.00
DBA-12” 36.00 DBA-22” 54.00
DBA-14” 47.00 DBA-24” 56.00
Options
To purchase these items separately, add $100.00
ND-LF24 24V Spring Return 35” lbs Add $385.00
ND-LF120 120V Spring Return 35” lbs Add $395.00
ND-LM24SR-T Modulating Motor Add $250.00
ND-LM24 35 in. lbs. motor 24volt Add $225.00
ND-SRE
24V Spring Return w/end switch Add $200.00
ND-SRE 120
120V Spring Return w/end switch Add $200.00
ND-MA15S 15 Second Motor Add $160.00
S1A End Switch List $115.00
ND-L 5/8” round shaft-no motor Deduct $30.00
ND-MQ Manual Quadrant-No motor Deduct $35.00