WRE and WC - SHUTTERS

FEATURES:
  • • Indoor / Outdoor, Wall / Ceiling Mounts
  • Opens with Fan Pressure
  • Gravity Closes When Fan is Turned Off
  • Aluminum Exhaust & Supply Shutters

ALUMINUM EXHAUST & SUPPLY SHUTTERS
EDP
Number
Catalog
Number
For Fans
Diameter
Type
Inside
Outside
Req. Open.
(Sq. In.)
No. Holes
17/64" Dia.
Sections
Ship
Wt.
Motor
Kits
WRE Shutters
22753
WR9E
10"
EXHAUST
10" SQ.
13" SQ.
10¾"
8
1
3
MK-4620
22750
WR10E
10"
EXHAUST
12" SQ.
15" SQ.
12¾"
8
1
3
22765
WR12E
12"
EXHAUST
14" SQ.
17" SQ.
14¾"
8
1
4
22775
WR16E
16"
EXHAUST
18" SQ.
21" SQ.
18¾"
12
1
5
22785
WR18E
18"
EXHAUST
20" SQ.
23" SQ.
20¾"
12
1
5
22795
WR24E
24"
EXHAUST
26" SQ.
29" SQ.
26¾"
12
1
8
22805
WR30E
30"
EXHAUST
32" SQ.
35" SQ.
32¾"
16
1
12
22815
WR36E
36"
EXHAUST
38" SQ.
41" SQ.
38¾"
16
1
16
22825
WR42E
42"
EXHAUST
44" SQ.
47" SQ.
44¾"
20
2
20
MK-4621
22835
WR48E
48"
EXHAUST
50" SQ.
53" SQ.
50¾"
20
2
23
22845
WR54E
54"
EXHAUST
56" SQ.
59" SQ.
56¾"
24
2
27
MK-4620((2 Req)
22855
WR60E
60"
EXHAUST
62" SQ.
65" SQ.
62¾"
24
3
30

 

mk-4620(3) Reg.
WC Shutters
22754
WC9
10"
SUPPLY
10" SQ.
13" SQ.
10¾"
8
1
3
MK-5047
22755
WC10
10"
SUPPLY
12" SQ.
15” SQ.
12¾"
8
1
4
22611
WC12
12"
SUPPLY
14" SQ.
17" SQ.
14¾"
8
1
4
22621
WC16
16"
SUPPLY
18" SQ.
21" SQ.
18¾"
12
1
5
22631
WC18
18"
SUPPLY
20" SQ.
23" SQ.
20¾"
12
1
7
22641
WC24
24"
SUPPLY
26" SQ.
29" SQ.
26¾"
12
1
9
22651
WC30
30"
SUPPLY
32" SQ.
35" SQ.
32¾"
16
1
12
22661
WC36
36"
SUPPLY
38" SQ.
41" SQ.
38¾"
16
1
17
22671
WC42
42"
SUPPLY
44" SQ.
47" SQ.
44¾"
20
2
22
MK-4782
22681
WC48
48"
SUPPLY
50" SQ.
53" SQ.
50¾"
20
2
25
22691
WC54
54"
SUPPLY
56" SQ.
59" SQ.
56¾"
24
2
28
 MK-5047 (2) Reg.
22701
WC60
60"
SUPPLY
62" SQ.
65" SQ.
62¾"
24
3
31

MK-4782 (1) and MK-5047 (1) Reg.

NOTES: WR48E - WR54E are two panel construction. WR60E is three panel. If used for Supply Duty, a Motor Actuator Kit must be utilized with shutter.

WRE & WC SELECTION / INSTALLATION INFORMATION AND CAUTIONS:
The velocity profile near the fan blade tips (spot velocity) is non-uniform and will vary by fan model. This spot velocity condition can damage a backdraft damper if it exceeds the maximum recommended backdraft damper velocity. For this reason, it is recommended that the backdraft damper be mounted a minimum of 1/3 the fan diameter away from the fan outlet. It is a good practice to contact the factory when applications have a velocity approaching the maximum allowed or when the fan motor horsepower is 7-1/2 and above, or when the fan spot velocity is in excess of the backdraft dampers’ maximum velocity.

NOTE: When a WR-E or WC Shutter is used for exhaust or supply and mounted remote from the fan, a WS Wall Collar is not needed. The shutter is installed directly on the wall and a Motor Actuator Kit must be utilized.