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2.10 Condensation
If the fan is used intermittently, especially in a humid and warm environment, or if variations in temperature occur, con-
densation may build up in the motor and draining off must be ensured. In case of condensation in the ducting and fan
casing appropriate measures must be taken during installation (water sack, drainage line). Under no circumstances
must the motor come into contact with water.
3.0 Rectangular centrifugal fans SKR../KR..
Type overview, weight and dimensions
Type KR..
UK
Type
Weight
Dimensions
A
B
C
D
E
F
G
H
I
J
K
Ø L
M
KRW 180/2/30/15
6 kg
343
193
322
172
300
150
375
80
265
20
73
9
-
KRW 225/2/40/20
10 kg
443
243
422
222
400
200
502
148
325
19
113
9
-
KRW 225/2/50/25
15 kg
543
293
522
272
500
250
532
41
455
36
126
9
-
KRW 315/4/50/25
16,8 kg
543
293
522
272
500
250
532
50
455
36
126
9
324
KRW 355/4/60/35
28,4 kg
643
393
622
372
600
350
642
33
567
31
171
9
404
KRW 400/4/70/40
39 kg
743
443
722
422
700
400
787
38
716
19
139
9
470
KRW 450/4/70/40
38,7 kg
743
443
722
422
700
400
787
38
716
19
139
9
481
KRW 500/4/80/50
66,9 kg
843
543
822
522
800
500
913
28
847
24
174
9
570
KRD 355/4/60/35
27 kg
643
393
622
372
600
350
642
33
567
31
171
9
404
KRD 450/4/70/40
49 kg
743
443
722
422
700
400
787
38
717
19
139
9
460
KRD 560/6/80/50
62 kg
843
543
822
522
800
500
913
28
847
24
174
9
563
KRD 500/4/80/50 A
64 kg
843
543
822
522
800
500
913
33
842
24
174
9
558
KRD 560/4/80/50
64,1 kg
843
543
822
522
800
500
913
28
847
24
174
9
558
KRD 630/6/100/50
84 kg
1043
543
1022
522
1000
500
1018
28
952
25
272
9
559
KRD 630/4/100/50
95,6 kg
1043
543
1022
522
1000
500
1018
28
952
55
242
9
571
SKRW 315/4/50/25
33,1 kg
608
410
522
272
500
250
744
658
502
41
-
9
-
SKRW 355/4/60/35
48,8 kg
708
513
622
372
600
350
849
763
626
41
-
9
-
SKRW 400/4/70/40
62 kg
808
567
722
422
700
400
994
908
764
41
-
9
-
SKRW 500/4/80/50
93,3 kg
908
681
822
522
800
500
1110 1033
897
41
-
9
-
SKRD 355/4/60/35
49 kg
708
513
622
372
600
350
849
763
626
41
-
9
-
SKRD 450/4/70/40
69 kg
808
567
722
422
700
400
994
908
764
41
-
9
-
SKRD 500/6/70/40
64 kg
808
567
722
422
700
400
994
908
764
41
-
9
-
SKRD 500/4/80/50
89 kg
908
681
822
522
800
500
1110 1033
897
41
-
9
-
SKRD 560/6/80/50
87 kg
908
681
822
522
800
500
1110 1033
897
41
-
9
-
SKRD 630/6/100/50
113 kg
1108
697
1022
522
1000
500
1214 1137
987
41
-
9
-
4
Rectangular Centrifugal Fans – InlineVent
®
SKR/KR ...
Installation and Operating Instructions
CHAPTER 3
TECHINCAL DATA
Fig.1
Dimensions in mm