49
Flue installation instructions ecoTEC 834449_13
3.7.3 How to install 87° elbows
190
95
95
10
10
A
B
Fig. 3.24 Installation of 87° elbows, Accy. No.: 303 210
Offset [in mm]
Length of air
conduit [in mm]
Offset [in mm]
Length of air
conduit [in mm]
Offset [in mm]
Length of air
conduit [in mm]
200, 205, 210
0
505
295
730
520
510
300
735
525
515
305
740
530
> 210 to
< 310
not possible
520
310
745
535
525
315
750
540
530
320
755
545
310
100
535
325
760
550
315
105
540
330
765
555
320
110
545
335
770
560
325
115
550
340
775
565
330
120
555
345
780
570
335
125
560
350
785
575
340
130
565
355
790
580
345
135
570
360
795
585
350
140
575
365
800
590
355
145
580
370
805
595
360
150
585
375
810
600
365
155
590
380
815
605
370
160
595
385
820
610
375
165
600
390
825
615
380
170
605
395
830
620
385
175
610
400
835
625
390
180
615
405
840
630
395
185
620
410
845
635
400
190
625
415
850
640
405
195
630
420
855
645
410
200
635
425
860
650
415
205
640
430
865
655
420
210
645
435
870
660
425
215
650
440
875
665
440
220
655
445
880
670
445
225
660
450
885
675
440
230
665
455
890
680
445
235
670
460
895
685
450
240
675
465
900
690
455
245
680
470
905
695
460
250
685
475
910
700
465
255
690
480
915
705
470
260
695
485
920
710
475
265
700
490
925
715
480
270
705
495
930
720
485
275
710
500
935
725
490
280
715
505
940
730
495
285
720
510
500
290
725
515
Table 3.5 Length of surplus with 87° elbows
Key
A = Offset
B = Length of air conduit
a
Caution!
This gives a corresponding exhaust-conduit
length of 190 + 40 = 230 mm.
Example:
An offset of 400 mm is measured. This value is then
used, along with the table below, to determine the
length of the air conduit ( = 190 mm in this case).
Optional Concentric System Ø 80/125 3
Summary of Contents for Air flue duct
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