Greenheck DFD Series Installation, Operation And Maintenance Manual page 44

Install the Fan
1. For best
performance,
choose a location
with the shortest
possible duct run
and minimum
number of elbows.
Do not mount near
cooking equipment, as
shown in Fig. 1.
2. Attach adjustable
mounting brackets
to fan, but leave the
screws loose until
proper height is
determined, shown
in Fig. 2. Cut hole to
dimensions shown
in table below:
Ceiling Openings
Ceiling Exhaust Sizes
A50, A70, A90, A50-90-VG,
A90-130-VG, A110, A125, A190
A200, A250, A290, A390
A700
A410, A510, A510-VG,
A710, A710-VG, A780
A900, A1050, A1410, A1550
B50 - 200
NOTE
Model sizes A50-90 are standard with a round duct.
Should any model A110-190 require a round duct,
Model RDC (Round Duct Connector) may be ordered
from manufacturer for field installation
Wire the Fan
1. Remove wiring cover.
If fan/accessory
combination is being
used, make sure the
fan plug is connected
to the fan receptacle
and the accessory plug
is connected to the
accessory receptacle,
shown in Fig. 6. Using
proper wire connectors, wire the fan as shown in
Fig. 7a. For wiring of light proceed to Fig. 7b.
2. Push all wiring into the unit's cover and replace
wiring cover.
6 Ceiling Exhaust and Inline Fans
Do not install
fan in this area
45° 45°
Fig. 1
Brackets can be
used in either
position to adapt to
most mounting
situations
Bottom Mount
Bottom Mount
Top Mount
Fig. 2
Fan or Fan/Light Fan/CRD
10 7 ⁄ x 13 3 ⁄ 11 1 ⁄ x 13
8 8 8
12 1 ⁄ x 14 1 ⁄ 12 1 ⁄ x 14
8 4 4
23 3 ⁄ x 11 3 ⁄ 24 1 ⁄ x 12
4 4 8
14 3 ⁄ x 18 3 ⁄ 14 7 ⁄ x 18
4 8 8
14 3 ⁄ x 24 14 7 ⁄ x 24
4 8
14 1 ⁄ x 11 3 ⁄ 14 3 ⁄ x 12
8 4 8
.
Fan
Light
Fan Outlet (top)
Accessory (bottom)
Fig. 6
For Frame Construction:
Position unit between
joists. Position brackets
such that bottom
edge of housing will
be flush with finished
ceiling, and tighten the
adjustable mounting
brackets, shown in
Fig. 3.
For Hanging
Installations:
Use manufacturer's
optional vibration
isolator kit Part Number
VI Kit. Using the fan's
standard adjustable
mounting brackets and
10 by 32 threaded rod
(by others), hang unit as
shown in Fig. 4.
3. Installation of ductwork
is critical to the performance
of the fan, shown in Fig. 5.
Straight ductwork (1) or
7 ⁄
16
ductwork that turns in
3 ⁄
8
the same direction as the
1 ⁄
4 wheel (2) is recommended.
Ductwork turning opposite
7 ⁄
16
the wheel direction (3) will
1 ⁄
8
cause turbulence and back
1 ⁄
pressure resulting in poor
4
performance.
4. Slide ductwork over the fan's discharge collar and
securely attach it with sheet metal screws.
Make sure the screws do not interfere with damper
operation. Check damper to make sure it opens freely.
Fig. 7a
115 & 277 Volt
Black wire is "Hot"
White wire is "Neutral"
Green wire is "Ground"
Slots in the
brackets
allow fine
adjustment
for flush
fit with
wall/ceiling
opening
Fig. 3
Fig. 4
Fig. 5
(POOR)
Fig. 7b
220 - 240 Volt
Black wire is "Hot"
White wire is "Hot"
Green wire is "Neutral/Ground"
3
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