Standard wall mounting, Mounting fan directly to wall, Motor side guard – Greenheck Fan SE1 User Manual
Page 5: Osha motor side guard, Weatherhood, Damper guard, Dampers, Wal l spacer guard wall damper
5
Mounting Fan Directly to Wall
The split drawing below illustrates the typical ways of mounting fans directly to the wall when a wall housing
or collar is not used.
For exhaust fans, there is a minimum dimension (M) which must be maintained between the propeller and
damper or guard to achieve optimum performance (failure to meet this minimum dimension will result in loss
of fan performance, increased noise and shortened fan and damper life). There is also a minimum required wall
opening dimension (W.O.) to allow the venturi to fit into the wall opening.
See the chart at right for the minimum “M” and wall opening dimensions.
This installation may
require a spacer (by
others) between the
fan and wall to achieve
the minimum “M”
dimension.
Fans can be mounted
directly to a wall
only if the wall is of
sufficient thickness to
meet the minimum “M”
dimension as shown
here.
Fan
Size
M
Wall
Opening
8
6 (152)
10
1
⁄
2
(267)
10
6 (152)
12
1
⁄
2
(318)
12
7 (178)
14
1
⁄
2
(368)
14
8 (203)
16
1
⁄
2
(419)
16
9 (229)
18
1
⁄
2
(470)
18
10 (254)
20
1
⁄
2
(521)
20
12 (305)
22
1
⁄
2
(572)
24
13 (330)
26
1
⁄
2
(673)
30
13 (330)
32
1
⁄
2
(826)
36
14 (356)
38
1
⁄
2
(978)
42
15 (381)
44
1
⁄
2
(1130)
48
16 (406)
50
1
⁄
2
(1283)
54
17 (432)
56
1
⁄
2
(1435)
60
19 (483)
62
1
⁄
2
(1588)
72
19 (483)
74
1
⁄
2
(1892)
All dimensions given in inches (mm).
Standard Wall Mounting
wal
l
spacer
guard
wall
damper
M
Motor Side Guard
Protective guards of welded steel wire completely enclose the motor and drive side
of the fan. Guards are coated with Permatector, a thermal setting polyester urethane.
Other paint finishes are also available. Sizes 20 and larger only.
OSHA Motor Side Guard
Protective guards of expanded metal screen in structural steel frames are available to
completely enclose the motor and drive side of the fan.
Weatherhood
Weatherhoods shield wall openings and dampers from rain and snow. Weatherhoods
are shipped unassembled in kit form for field assembly. Construction is of galvanized
steel with wire mesh birdscreen. Mounting flanges have prepunched mounting holes.
45° turn down is for exhaust and 90° turn down is for exhaust and supply. Options
include aluminum construction, insect screen and painted finish.
Damper Guard
Damper guards meet the OSHA requirements completely enclose the damper or
wall openings on the discharge side of the fan. They are constructed of expanded
galvanized steel screen in galvanized steel frames. Mounting flanges have prepunched
mounting holes. Options include aluminum construction and painted finish.
Dampers
Used alone or in conjunction with the wall housing or wall collar, a complete line of
dampers is available for exhaust or supply configurations.