2
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 figure 7.
2.
Attach adjustable mounting brackets to fan, but leave the screws loose until
proper height is determined, as shown in figure 8. Cut hole to dimensions
shown in Table A:
2a. 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, as shown in figure 10.
2b. For hanging installations, use Greenheck’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 figure 11.
3.
Installation of ductwork is critical to the performance of the fan as shown in figure 12.
Straight ductwork (1) or ductwork that turns in the same direction as the wheel (2) is
recommended. Ductwork turning opposite the wheel direction (3) will cause
turbulence and back pressure resulting in poor performance.
Note: If round duct is to be used, Model RDC (Round Duct Connector) can be purchased
from Greenheck that bolts in place of the standard square duct connector.
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.
Top Mount
Bottom Mount
Brackets can be
used in either
position to adapt to
most mounting
situations
Bottom Mount
Slots in the
brackets
allow fine
adjustment
for flush
fit with
wall/ceiling
opening
Do not install
fan in this area
45º
45º
Installation Recommendations
Fig. 7
Fig. 8
Fig. 10
Table A
Ceiling Openings
Sizes
Fan or Fan/Light
Fan/CRD
SP-A50, A70, A90
10 7/8 x 13 3/8
11 1/8 x 13 7/16
SP-A110, A125, A190
SP-A200, A250, A290, A390
12 1/8 x 14 1/4
12 1/4 x 14 3/8
SP-A410, A510, A710, A780
14 3/4 x 18 3/8
14 7/8 x 18 7/16
SP-A700
11 7/8 x 23 7/8
12 x 24
SP-A900, A1050, A1410, A1550
14 3/4 x 24
14 7/8 x 24 1/8
Fig. 11
Wire the Fan
1.
Remove wiring cover and wire nuts. If fan/light combination is being used make
sure the fan plug is connected to the fan receptacle and the light plug is
connected to the light receptacle as shown in figure 13. Then wire unit to the
correct installation type, as shown in
figure 13a, 13b, and 13c
.
Light Outlet
Fan Outlet
Hot (Black)
To switch
To power
supply
To ground
Ground (Green)
Common (White)
115 volt light
Light
Hot (Black)
To power
supply
Hot (Black)
Motor
Common (White)
220/230/240 volt
AIR FLOW
1
(GOOD)
3
(POOR)
2
(GOOD)
Fig. 13
Fig. 12
Hot (Black)
To switch
or
power
To power
supply
To ground
Ground (Green)
Motor
Common (White)
115/277 volt
13a
13b
13c
2.
Push all wiring into the unit’s cover and replace wiring cover.
