Fantech CF1390 Instructions Pour L'installation page 2

Installing Mounting Bracket & Fan
1. When selecting fan mounting location, the fol-
lowing criteria should be considered: a)
mounting to minimize noise generated by fan
operation; b) service accessibility
a) Mounting the fan as far as possible from
the intake point will minimize fan operat-
ing noise from being transmitted back
through the duct work. If the fan is to be
used as a booster for moving the air
between two rooms, a central point along
the duct may be optimal. Insulated flexi-
ble type duct work (recommended for all
bathroom exhaust applications) will
result in much quieter operation. Fantech
recommends minimum 8' of insulated
flexible duct between any exhaust grill
and fan for low noise level.
b) Fan location should allow sufficient
access for service.
2. Using the wood screws provided, attach the
mounting bracket (NB or MB) to a support
beam at the selected location. Fan mounting can be at any point along the
duct and in any angle, however, vertical mounting is recommended to
reduce condensation buildup in the fan. If a horizontal installation is neces-
sary and condensation buildup may pose a problem, either wrap insulation
Installing DG Supply/Exhaust Grill
If a Vent/Light combination kit is purchased, the VLC vent/lights are supplied
with a separate installation instruction replacing steps 1 through 4.
1. Select the grill mounting point within the area
to be ventilated. To ease installation, locations
of framing beams within the walls or joists
supporting the ceiling should be considered.
Collar/damper is provided with a perforated
hanging strap for attachment directly to a
beam or joist. Allow sufficient space between
the collar/damper and the beam to attach the
duct work. If the location of the grill does not
allow direct attachment, a cross-member
mounted to the framing should be used.
2. Place the mounting collar/damper in the
selected location and trace a circle onto the
surface. From the interior side of the room,
cut through the surface. Please note: In order
to assure a smoother finish when mounting
through a sheetrock or tile type ceiling, it is
recommended that a razor knife be used to
make the cut.
3. From within the attic or crawl space, place the
mounting collar into the hole until the edge of
the collar is flush with the interior wall or ceil-
ing surface. Attach collar to the support beam with the 2" wood screws pro-
vided. Attach duct work. Secure using CB or FC clamps and/or duct tape.
When installing the damper into rigid type ducting, FC clamps or duct tape
should be used.
PLEASE NOTE: When attaching flex duct to the collar/damper combination
and an immediate elbow is necessary, be certain that the elbow is installed
with a "soft" bend to allow damper blades to operate properly.
4. Snap the grill into the mounting collar/damper. Grill should be pushed tight-
ly into place for an airtight fit. If there is a gap between the collar and the
ceiling it should be caulked to avoid air leakage. For subsequent cleaning the
grill can be pulled out and cleaned.
2 Fantech FR Series Installation Manual
around the fan or drill a ¹⁄₄" hole in the bottom
of the housing (along with an NPT insert [by
others] and drain tubing) allowing condensa-
tion to drain.
3. Attach fan to the mounting bracket with the
sheet metal screws provided. Wiring box
should be positioned for easy access. Bracket
is provided with rubber vibration isolation
grommets to prevent the transmission of
Mount Bracket (NB).
sound through the structure. Be careful not to
overtighten. Also, care should be taken not to
strip the plastic housing. Screws are self tap-
ping and do not require pilot holes. However,
pilot holes (no larger than ³⁄₃₂") are recom-
mended.
4. Connect duct work to inlet and outlet of fan
using CB clamps or duct tape. When using
insulated duct, it is recommended that the
inner vinyl core be clamped or taped to the
inlet and outlet and that the vapor barrier sur-
Mount Fan.
rounding the insulation be duct taped to the fan housing.
NOTE: Steps 2 & 3 may be reversed.
Installing DG Supply/Exhaust Grill
When installing a DLX kit, a balancing damper has been included to allow for
adjustment of the system. The damper may be used where the grills will be con-
nected using branches of unequal length or where
the flow will need to be balanced for any reason.
To Install The Damper:
1. The Damper must be installed on the branch
with the least restriction.
This is generally the duct that is shortest or
has the fewest bends.
2. Drill a ⁵ ₁₆" hole approximately 1¹ ₂" from the
edge on the flat side of the "Y".
Mount Collar
3. Place the washer over the threaded shaft on
the damper.
4. Insert the damper, shaft first, into the hole just
drilled.
5. Attach the handle using the wing nut.
6. Adjust the damper to balance airflow and
tighten the wing nut to secure.
Flexible Duct Installation Hints
Side view grill and collar.
Flexible insulated duct is strongly recommended
where allowed by local code for bathroom exhaust
applications, where ducting passes through uncon-
ditioned space or where noise is a factor. Failure to use insulation could result in
excessive condensation buildup within the duct, and undesirable sound levels
within the room. For the quietest possible installations, Fantech recommends a
minimum of 8' of insulated flexduct between any exhaust grill and fan. When
using flexible type duct work, duct should be stretched as tight and straight as
possible. Failure to do so could result in dramatic loss of system performance.
Flexible duct should be connected to the fan with CB type clamps or duct tape.
All connections should be as airtight as possible to maximize system perform-
ance.
Mount Bracket (MB).
Mount Fan.
"Y" with balancing damper.
Balancing
Damper
FR Series Fan
and balancing damper.