Electrical Connection - Fantech DBF110 Instructions D'installation

Step 2. Mount Bracket
Using the wood screws provided, attach the mounting bracket to a
support beam at the selected location. Bracket is provided with grom-
mets in order to isolate any vibration and prevent the transmission of
sound through the structure. Be careful not to overtighten. Fan
mounting can be in any angle (see ill. 2), however, vertical mounting
is recommended to reduce condensation buildup in the fan. If a hori-
zontal installation is necessary and condensation buildup may pose a
problem, a ¹ ₄" hole drilled in the bottom of the housing (along with an
NPT insert [by others] and drain tubing) will allow condensation to
drain.
Step 3. Mount Fan
For proper operation, the switch diaphragm must be positioned verti-
cally. (Illustrations below show diaphragm position for horizontal, ver-
tical and ducts installed at an angle.) Wiring box should be positioned
for easy access. Attach fan to the mounting bracket with the self tap-
ping screws provided. Care should be taken not to strip the plastic
housing. Although screw pilot holes are not required, ³ ₃₂" (or smaller)
pilot holes are recommended.
NOTE: Steps 2 & 3 may be reversed.

Electrical Connection

DO NOT CONNECT POWER SUPPLY UNTIL FAN IS COMPLETELY
INSTALLED. MAKE SURE ELECTRICAL SERVICE TO THE FAN IS
LOCKED IN "OFF" POSITION.
1. This unit has rotating parts and safety precautions should be exer-
cised during installation, operation and maintenance.
2. CAUTION: "For General Ventilation Use Only. Do Not Use To
Exhaust Hazardous Or Explosive Materials And Vapors."
3. WARNING: TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS - OBSERVE THE FOLLOWING:
a. Use this unit only in the manner intended by the manufac-
turer. If you have questions, contact the factory.
b. Before servicing or cleaning, switch power off at service
panel and lock service panel to prevent fan 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.
c. Installation work and electrical wiring must be done by
qualified person(s) in accordance with all applicable codes
and standards, including fire-rated construction.
d. The combustion airflow needed for safe operation of fuel
burning equipment may be affected by this unit's opera-
tion. Follow the heating equipment manufacturer's guide-
lines and safety standards such as those published by the
National Fire Protection Association (NFPA), the American
Society of Heating, Refrigeration, and Air Conditioning
Engineers (ASHRAE) and the local code authorities.
e. When cutting or drilling into wall or ceiling, do not damage
electrical wires or other hidden utilities.
f. Ducted fans must always be vented to the outdoors.
g. Install fan at least five feet above the floor.
4. WARNING! Check voltage at the fan to see if it corresponds to the
motor nameplate.
GUARDS MUST BE INSTALLED WHEN FAN IS WITHIN REACH OF
PERSONNEL OR WITHIN SEVEN (7) FEET OF WORKING LEVEL OR
WHEN DEEMED ADVISABLE FOR SAFETY.
Illustration 2
Correct Mounting of Diaphragm Switch
Horizontal
Switch mounted
properly above
and below duct.
Incorrect Mounting of Diaphragm Switch
Illustration 3
Attach Mounting Bracket to
stud using screws provided.
Illustration 4
Switch Circuit
Vertical Angled
Switch mounted
properly
above and
below
duct.
Attach Fan to Mounting
Bracket using screws provided.
Electrical Supply from
Breaker Panel