Return air fan performances
R
e
tu
rn
F
a
n
-
O
p
t 1
96
&
O
p
t 1
98
-
H
ig
h
p
re
ss
u
re
-
1
35
-1
60
Un
it
E
xt
e
rn
al
S
ta
Ɵ
c P
re
ssur
e
(
P
a)
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
5200
713
4,
385
748
4,
732
783
5,
087
816
5,
448
849
5,
814
882
6,
189
913
6,
566
944
6,
951
974
7,
340
1004
7,
736
5500
725
4,
882
759
5,
243
792
5,
611
825
5,
984
857
6,
366
888
6,
753
919
7,
144
949
7,
543
979
7,
946
1008
8,
356
5800
738
5,
424
771
5,
797
803
6,
179
835
6,
569
866
6,
962
896
7,
363
926
7,
769
956
8,
181
985
8,
598
1.
013
9,
020
6100
753
6,
016
784
6,
403
815
6,
799
846
7,
200
876
7,
608
906
8,
023
935
8,
442
963
8,
868
991
9,
297
1.
019
9,
733
6400
768
6,
659
798
7,
060
828
7,
468
858
7,
883
887
8,
304
916
8,
733
944
9,
167
972
9,
605
999
10,
050
1.
026
10,
499
6700
784
7,
356
813
7,
771
842
8,
193
871
8,
621
899
9,
055
927
9,
498
954
9,
943
981
10,
397
1008
10,
854
1.
034
11,
317
7000
801
8,
109
829
8,
538
857
8,
973
884
9,
414
912
9,
863
939
10,
318
965
10,
777
992
11,
243
1.
018
11,
716
1.
043
12,
191
7300
818
8,
920
845
9,
362
87
2
9,
812
899
10,
266
925
10,
728
952
11,
196
977
11,
669
1003
12,
149
1.
028
12,
634
1.
053
13,
125
7600
836
9,
793
862
10,
248
888
10,
711
914
11,
180
940
11,
655
965
12,
138
990
12,
625
1.
015
13,
116
1.
040
13,
615
1.
064
14,
118
7900
854
10,
730
880
11,
198
905
11,
674
930
12,
158
955
12,
645
979
13,
142
1.
004
13,
643
1.
028
14,
148
1.
052
14,
659
1.
076
15,
176
8200
873
11,
732
898
12,
214
922
12,
706
946
13,
200
971
13,
703
994
14,
211
1.
018
14,
726
1.
042
15,
246
1.
065
15,
770
1.
088
16,
301
8500
893
12,
804
916
13,
300
940
13,
804
964
14,
314
987
14,
829
1.
010
15,
351
1.
033
15,
880
1.
056
16,
413
1.
079
16,
952
1.
101
17,
494
8800
912
13,
946
935
14,
456
958
14,
973
981
15,
498
1004
16,
026
1026
16,
562
1049
17,
103
1071
17,
651
1093
18,
203
1115
18,
760
R
e
tu
rn
F
a
n
-
O
p
t 1
97
&
O
p
t 1
99
-
H
ig
h
p
re
ss
u
re
-
1
80
-2
05
Un
it
E
xt
e
rn
al
S
ta
Ɵ
c P
re
ssur
e
(
P
a)
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
rp
m
kW
7100
778
6,
648
805
7,
046
832
7,
448
858
7,
857
884
8,
270
909
8,
689
934
9,
112
658
9,
542
982
9,
972
100
6
10,
409
7500
784
7,
259
811
7,
668
837
8,
088
863
8,
511
888
8,
937
913
9,
371
937
9,
811
961
10,
251
985
10,
699
1008
11,
150
7900
792
7,
920
818
8,
343
844
8,
776
869
9,
213
894
9,
654
918
10,
101
942
10,
552
965
11,
010
988
11,
471
1.
011
11,
936
8300
801
8,
630
826
9,
070
851
9,
517
875
9,
968
900
10,
423
923
10,
884
947
11,
349
970
11,
821
992
12,
296
1.
015
12,
778
8700
810
9,
398
835
9,
853
859
10,
311
883
10,
776
907
11,
247
930
11,
723
952
12,
202
975
12,
687
997
13,
177
1.
019
13,
673
9100
821
10,
223
845
10,
692
868
11,
164
891
11,
642
914
12,
128
937
12,
618
959
13,
110
981
13,
610
1003
14,
117
1.
024
14,
624
9500
832
11,
108
855
11,
590
878
12,
079
901
12,
572
923
13,
068
945
13,
572
967
14,
082
988
14,
596
1009
15,
113
1.
030
15,
637
9900
844
12,
058
866
12,
555
889
13,
054
910
13,
561
932
14,
075
954
14,
592
975
15,
113
996
15,
641
1.
017
16,
176
1.
037
16,
710
10300
856
13,
072
878
13,
582
900
14,
096
921
14,
617
942
15,
145
963
15,
676
984
16,
214
1005
16,
752
1.
025
17,
301
1.
045
17,
850
10700
870
14,
155
891
14,
680
912
15,
207
933
15,
742
953
16,
284
973
16,
829
994
17,
378
1.
014
17,
934
1.
034
18,
496
1.
053
19,
059
11100
883
15,
309
904
15,
847
924
16,
389
944
16,
938
965
17,
493
984
18,
052
1004
18,
615
1024
19,
185
1043
19,
762
1062
20,
338
O
ut
o
f fa
n
sc
op
e
F
AN
RP
M
AT
M
O
T
O
R
P
UL
L
E
Y
S
E
T
T
IN
G
S
-
R
E
T
URN
F
AN*
M
O
T
O
R
P
U
L
L
E
Y
T
URNS
O
P
E
N
0
1
/2
1
1
-1
/2
2
2
-1
/2
3
3
-1
/2
4
4
-1
/2
5
196/
198
1.
009
995
980
966
952
938
923
909
895
880
866
197/
199
1.
009
995
980
966
952
938
923
909
895
880
866
*A
pp
ro
xi
m
ate
fa
n r
pm
s
ho
w
n.
N
ot
e:
F
ac
to
ry
s
et
tings
ar
e
shaded.
Op
ti
o
n
n
o
560
595
630
665
700
735
545
590
635
680
725
l/s
420
455
490
525
500
l/s
320
365
410
455
50
Содержание 48UA-UH 135
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