4
Sidewall Propeller Fans • 45° and 90° Weatherhood Accessory
®
Typical Installation
1. Move weatherhood to desired location.
2. Weatherhood may be mounted directly to the
wall or to the fan wall housing or wall collar.
NOTE: Units mounted directly to the wall require
a different wall opening (W.O.) size than those
mounted in wall housings or wall collars.
DIRECT TO WALL
1. Cut an appropriate sized hole in the wall using
the recommended wall opening (W.O.).
2. For a weathertight seal, add silicone to the
flange prior to mounting.
3. Mount weatherhood directly to the wall using
corrosion-resistant fasteners.
MOUNT TO WALL HOUSING OR WALL
COLLAR
1. Cut an appropriate sized hole in the wall using
the recommended wall opening (W.O.).
2. For a weathertight seal, add silicone to the
flange prior to mounting.
3. Mount weatherhood to the wall housing or wall
collar using corrosion-resistant fasteners.
Recommended Wall Opening (W.O.)
Direct To Wall, see Figure 18
Model
45° and 90° Weatherhood
(Square)
WTHD-8
101/2
(267)
WTHD-10
121/2
(318)
WTHD-12
141/2
(368)
WTHD-14
161/2
(419)
WTHD-16
181/2
(470)
WTHD-18
201/2
(521)
WTHD-20
221/2
(572)
WTHD-24
29
(737)
WTHD-30
35
(889)
WTHD-36
41
(1041)
WTHD-42
47
(1194)
WTHD-48
531/4
(1353)
WTHD-54
591/2
(1511)
WTHD-60
651/2
(1664)
WTHD-72
78
1
⁄
8
(1984)
All dimensions are in inches (millimeters).
Recommended Wall Opening (W.O.)
Wall Housing or Wall Collar, see Figures 19 & 20
WTHD-8
141/4
(362)
WTHD-10
161/4
(413)
WTHD-12
191/4
(489)
WTHD-14
211/4
(540)
WTHD-16
231/4
(591)
WTHD-18
251/4
(641)
WTHD-20
271/4
(692)
WTHD-24
333/4
(857)
WTHD-30
393/4
(1010)
WTHD-36
453/4
(1162)
WTHD-42
513/4
(1314)
WTHD-48
573/4
(1467)
WTHD-54
633/4
(1619)
WTHD-60
693/4
(1772)
WTHD-72
843/4
(2153)
All dimensions are in inches (millimeters).
Figure 18: Direct To Wall
W.O.
W.O.
W.O.
Wall
Wall
Wall
DANGER
Always disconnect, lock and tag power
source before installing or servicing. Failure
to disconnect power source can result in fire,
shock or serious injury.
MAINTENANCE
Disconnect and lockout power source
before cleaning. Clean weatherhood of any
accumulated dirt which would restrict airflow.
Figure 19: With Wall Housing
W.O.
W.O.
W.O.
Wall
Wall
Wall
Figure 20: With Wall Collar
W.O.
W.O.
W.O.
Wall
Wall
Wall
