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Wall collars offer an alternate method for mounting sidewall propeller fans and
the optional accessories shown here. Standard construction is of galvanized steel
(painted steel is optional) with heavy gauge mounting flanges and pre-punched
mounting holes.
Size
Wall Collar Damper Guard Weatherhood
Motor Side
Guard
Damper
A B** W.O. C D E F Width G*
812
7
⁄8 (327) 16
1
⁄8 (410) 14
1
⁄4 (362) 5
1
⁄2 (140) 10
1
⁄4 (260) 13
1
⁄4 (337) 11
1
⁄4 (286) 10
1
⁄2 (267) 8
5
⁄8 (219) 10 (254)
10 14
7
⁄8 (378) 16
1
⁄8 (410) 16
1
⁄4 (413) 6
1
⁄2 (165) 12
1
⁄4 (311) 14
7
⁄8 (378) 13
3
⁄8 (340) 12
1
⁄2 (318) 9 (229) 12 (305)
12 17
7
⁄8 (454) 16
1
⁄8 (410) 19
1
⁄4 (489) 5
3
⁄8 (137) 14
1
⁄4 (362) 16
3
⁄8 (416) 15
5
⁄8 (397) 14
1
⁄2 (368) 11 (279) 14 (356)
14 19
7
⁄8 (505) 18
3
⁄8 (467) 21
1
⁄4 (540) 6
3
⁄8 (162) 16
1
⁄4 (413) 17
1
⁄2 (445) 17
5
⁄8 (448) 16
1
⁄2 (419) 11 (279) 16 (406)
16 21
7
⁄8 (556) 18
3
⁄8 (467) 23
1
⁄4 (591) 6
3
⁄4 (171) 18
1
⁄4 (464) 19
3
⁄8 (492) 19
5
⁄8 (498) 18
1
⁄2 (470) 11 (279) 18 (457)
18 23
7
⁄8 (606) 18
3
⁄8 (467) 25
1
⁄4 (641) 6 (152) 20
1
⁄4 (514) 22 (559) 21
5
⁄8 (549) 20
1
⁄2 (521) 11 (279) 20 (508)
20 25
7
⁄8 (657) 18
3
⁄8 (467) 27
1
⁄4 (692) 6
1
⁄2 (165) 22
1
⁄4 (565) 24
3
⁄4 (629) 23
5
⁄8 (600) 22
1
⁄2 (572) 16 (406) 22 (559)
24 31
7
⁄8 (810) 18
3
⁄8 (467) 33
3
⁄4 (857) 6
3
⁄8 (162) 26
1
⁄4 (667) 26
7
⁄8 (683) 30
3
⁄8 (772) 29
1
⁄8 (740) 18 (457) 26 (660)
30 37
7
⁄8 (962) 18
3
⁄8 (467) 39
3
⁄4 (1010) 6
1
⁄2 (165) 32
1
⁄4 (819) 29
1
⁄8 (740) 36
1
⁄2 (927) 35
1
⁄8 (892) 21 (533) 32 (813)
36 43
7
⁄8 (1114) 18
3
⁄4 (476) 45
3
⁄4 (1162) 6
3
⁄4 (171) 38
1
⁄4 (972) 33 (838) 42
1
⁄2 (1080) 41
1
⁄8 (1045) 22 (559) 38 (965)
42 49
7
⁄8 (1127) 18
3
⁄4 (476) 51
3
⁄4 (1314) 10 (254) 44
1
⁄4 (1124) 35
3
⁄4 (908) 48
1
⁄2 (1232) 47
1
⁄8 (1197) 24 (610) 44 (1118)
48 55
7
⁄8 (1419) 18
7
⁄8 (479) 57
3
⁄4 (1467) 9 (229) 50
1
⁄4 (1276) 40
3
⁄8 (1026) 54
5
⁄8 (1387) 53
1
⁄4 (1353) 27 (686) 50 (1270)
54 61
7
⁄8 (1572) 20
1
⁄8 (512) 63
3
⁄4 (1619) 7
1
⁄2 (191) 56
1
⁄4 (1429) 44
3
⁄4 (1137) 60
7
⁄8 (1546) 59
1
⁄2 (1511) 32 (813) 56 (1422)
60 67
7
⁄8 (1724) 21 (533) 69
3
⁄4 (1772) 7
1
⁄4 (184) 62
1
⁄4 (1581) 48
3
⁄8 (1229) 67 (1702) 65
5
⁄8 (1667) 32 (813) 62 (1575)
72 81
7
⁄8 (2080) 22 (559) 83
3
⁄4 (2127) 7
1
⁄2 (191) 74
1
⁄4 (1886) 53
1
⁄4 (1353) 79
1
⁄2 (2019) 78
1
⁄8 (1984) 32 (813) 74 (1880)
*Dimensions are for exhaust fan guard. See CAPS for supply fan and for optional OSHA motor side guard dimensions. **All sizes except 20 and 72 are 2 in (51 mm)
larger if a VCD damper is used. For complete dimensional information refer to submittal. All dimensions given in inches (mm).
Wall Collar Mounting Option
BG*
C
E
F
D
A
W.O .
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.
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.
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.
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.
Note: Wall collar, fan, damper and guards ship
completely factory assembled except when
ordered as a kit.. Weatherhood ships loose.