Installation Guide

Locate the place in the duct where you wish to install the In-Line Duct Fan™.
Tape the enclosed template to the duct with the arrow pointing in the direction of the
airflow. Cut out the required opening by first drilling a pilot hole and cutting along the
dashed line using a jig saw or tin snips.
Place the Inductor
®
In-Line Duct Fan™ in the opening, making sure that the fan blade
can turn freely. Align the arrow on the unit in direction of airflow.
Connect the spring through the middle hole provided in the base plate, stretch the spring
and bend over the end for a snug installation. You may complete the installation by
covering the seams in the duct with a good quality duct tape.
Secure the In-Line Duct Fan™ in position with the supplied #6 sheet metal screws
using the provided holes in the base plate of the unit.
1.
2.
3.
4a.
4b.
MODEL: DB100, 301
For maximum performance and minimum noise, the best location to install your In-Line Duct
Fan™ is 6 - 10 feet from the register you wish to boost air to.
To prevent air leaks use a good quality duct tape to seal seams in the ductwork after installing
the In-Line Duct Fan™.
By utilizing tapered reducers you may use larger diameter duct fans in smaller diameter ducts.
Always leave your In-Line Duct Fan™ accessible for maintenance, cleaning or repair.
GENERAL INSTALLATION NOTES
Locate the place in the duct where you wish to install the In-Line Duct Fan™. Align arrow label on unit in
direction of airflow.
Cut a rectangular opening in the bottom of the duct measuring 3 1/8” x 11 1/4”.
When installing the fan blades on the motor shafts, make sure to support the
motor. Do not bend the motor brackets. Push blades on so that the shaft ends
are flush with the front of the fan blade hubs.
Fasten the In-Line Duct Fan™ with the supplied #6 sheet metal screws.
1.
2.
3.
4.
MODEL: DB102
Sheet
metal
screws
Sheet
metal
screws
Junction box
INSTALLATION
INSTRUCTIONS
ELECTRICAL CONNECTIONS AND WIRING
“WARNING - To Reduce The Risk Of Fire, Electrical Shock Or Injury To
Persons, Observe The Following:“
Installation work and electrical wiring must be done by qualified person
(s) in accordance with all applicable codes and standards, including fire-
rated construction.
Your In-Line Duct Fan™ must be connected to a 110/120 Volt AC, 60Hz
fuse or circuit breaker protected power source only in a manner
approved by all applicable codes. Never connect your In-Line Duct Fan™
to a 240 Volt system.
The wiring installation must be of an approved type and terminate in a
standard UL listed 2" x 4" junction box (field supplied) at the In-Line Duct
Fan™ and furnace. Consult your furnace wiring diagram to locate the
furnace fan power supply wires. To connect to a variable speed furnace
fan, please consult a qualified installer.
The ground wire (GREEN) must be terminated at the furnace or other
suitable ground. The power source must be protected by a fuse or circuit
breaker rated at 15 amperes or less.
You may also supply power to your In-Line Duct Fan™ via a Suncourt
DuctStat
®
Plug-In Thermostat™ or a standard on/off switch.
Operating range is 50°F (10°C) to 140°F (60°C). Exposure to
temperatures outside this range voids the warranty.
NEVER EXPOSE YOUR IN-LINE DUCT FAN™
TO TEMPERATURES OVER 140°F (60°C)
INSTALLATION INSTRUCTIONS
FOR IN-LINE DUCT FANS™
READ AND SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
WARNING - To Reduce The Risk Of Fire Or Electrical Shock, Do Not Use This Fan With
A Solid-State Speed Control Device. “For General Ventilating Use Only. Do Not Use to
Exhaust Hazardous or Explosive Materials and Vapors.”
WARNING - TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY TO
PERSONS, OBSERVE THE FOLLOWING:
Use This Unit Only In The Manner Intended By The Manufacturer. If You Have Any
Questions, Contact The Manufacturer.
Before Servicing Or Cleaning Unit, Switch Power Off At Service Panel And Lock Service
Panel To Prevent Power From Being Switched On Accidentally. When The Service
Disconnecting Means Cannot Be Locked, Securely Fasten A Prominent Warning Device, Such
As A Tag To The Service Panel.
Suncourt Inc. does not provide electrical connection information.
For your safety and protection follow all instructions and adhere to applicable building
and/or electrical codes.
Due to the power of a booster fan, adequate protective measures must be taken to avoid
possible contact with the impeller blades. In-Line Duct Fans™ are designed to boost only dry
(ambient) heated or cooled airflow in duct conduits of forced air systems with temperatures
between 50°F and 140°F. . Suncourt Inc. accepts no responsibility for use of this product in other
applications.
IMPORTANT WARNING
BOOST
AIRFLOW
WWW.SUNCOURT.COM
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SUNCOURT
WIRING INSTRUCTIONS FOR IN-LINE DUCT FANS:
Green wire from
motor.
Green wire from
motor.
Green wire from
motor.
DB100 DB102 DB200
DB204 DB205 DB206
DB208 DB210 DB212
DB412 DB414 DB416
DB6GT, DB8GT
Black wire or White wire
(see note above) from motor.
Black wire from motor.
DB301, DB305, DB306
Black wire from motor.
LOW fan speed: Yellow wire
from motor.
HIGH fan speed: Red wire
from motor.
DB308, DB310
White wire from motor.
LOW fan speed: Red wire
from motor.
HIGH fan speed: Black
wire from motor.
IMPORTANT NOTICE
Single Speed - Must use with UL listed 2" x 4" electrical box (field supplied)
when wiring .
The motor of your In-Line Duct Fan™ may have 1 White and 1 Black wire or
2 Black wires. If you have a motor with a White and Black wire, connect the
White motor wire to the White supply wire and the Black motor wire to the
Black supply wire. If you have a motor with 2 black wires, connect either of
the Black wires to the White supply wire and the other Black wire to the Black
supply wire.
Two Speed - Must use with UL listed 2" x 4" electrical box (field supplied)
when wiring .
Make sure you connect the colored wire as shown below. Failure to connect
correctly will destroy the motor. No warranty claim for an incorrectly wired
motor will be accepted by Suncourt.
Electrical Connections (The wiring installation must terminate in a UL
listed 2" x 4" electrical box with knockouts for ½" conduit).
Use the supplied sheet metal screws to fasten the electrical box to the fan.
Pilot holes have been pre-drilled for your safety and convenience.
Do NOT drill new mounting holes as this may cause damage to the motor or
the wiring.
Green (ground) wire
from power source
BLACK (hot or line)
wire from power source
WHITE (neutral or common)
wire from power source