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CONNECTING DUCTWORK
NOTICE: Do not insert ductwork inside the inlet collar of
the Dual Duct Air Terminal. Inlet duct should be installed
in accordance with SMACNA guidelines.
1. Slip each inlet duct over the inlet collar of the Dual
Duct Air Terminal.
2. Fasten and seal the connection by method prescribed
by job specification.
3. The diameter of the inlet duct in inches must be equal
to the listed size of the Dual Duct Air Terminal; e.g., a
duct that actually measures 8 inches must be fitted
to a size 8-inch Dual Duct Air Terminal. The inlet tube
of the Dual Duct Air Terminal is manufactured 1/8"
smaller than the listed size in order to fit inside the
duct.
4. If an inlet airflow sensor is installed, it is
recommended the installer provide a minimum of 3
duct diameters of straight duct at the Dual Duct Air
Terminal inlet.
5. The outlet end of the Dual Duct Air Terminal is
designed for use with slip and drive duct connections
(flanged outlets optional).
6. A rectangular duct the size of the Air Terminal
outlet should be attached. (Refer to submittal for
correct size.)
6
Dual Duct VAV Terminals
FIELD ELECTRICAL WIRING
DANGER
High voltage electrical supply is needed for this
equipment. The control cabinet contains live electrical
parts. Contacting these parts with power applied may
cause serious injury or even death. This work should
only be performed by a qualified electrician.
All field wiring must comply with local building codes
and NEC. (ANSI/NFPA 70).
When applicable, electrical control and piping diagrams
are attached to the inside of the control enclosure cover
of the Dual Duct Air Terminal.
Use copper only conductors with insulation rated 75ºC.
The Dual Duct Air Terminal must be properly grounded
per NEC 424-14 and 250.
Always check product label for voltage and current
data to determine the proper wire size and over current
protection.
The control panel cover must be closed or in place
before applying electric power to the Dual Duct
Air Terminal.
These recommendations are not meant to preclude
NEC requirements or other applicable local building
codes and are the sole responsibility of the installing
contractor.
NOTICE: If the unit is not ordered with an internal
disconnecting device then a disconnection device that
shall disconnect all phases must be provided by the
customer and incorporated in the fixed wiring.
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