Vaillant eco TEC plus 415 Instructions Manual page 86

FITTING AIR/FLUE DUCT EXTENSIONS
How to install 87° elbows
Accy. No.: 303 910
Note: The elbow delilvered with
the flue kits 303 933 and
303 936 is not the same
dimension as shown here.
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).
Important:
This gives a corresponding
exhaust-conduit length of
190 + 40 = 230 mm.
Table 6.1: Length of surplus with 87° elbows
Offset
[in mm] air conduit
> 190 to
< 210 mm
> 215 to
< 265 mm
> 270 to
< 290 mm
295
300
305
310
315
320
325
330
335
340
345
350
355
360
365
370
375
380
385
390
395
400
405
410
415
420
425
430
435
34
Fig. 6.3: Installation of 87° elbows
Length of Offset
[in mm]
[in mm]
440
0 445
450
not 455
possible 460
465
470
80 475
480
85 485
90 490
95 495
100 500
105 505
110 510
115 515
120 520
125 525
130 530
135 535
140 540
145 545
150 550
155 555
160 560
165 565
170 570
175 575
180 580
185 585
190 590
195 595
200 600
205 605
210 610
215 615
220 620
225 625
Supplied by HeatingSpares247.com
Length of Offset
air conduit [in mm]
[in mm]
230 630
235 635
240 640
245 645
250 650
255 655
260 660
265 665
270 670
275 675
280 680
285 685
290 690
295 695
300 700
305 705
310 710
315 715
320 720
325 725
330 730
335 735
340 740
345 745
350 750
355 755
360 760
365 765
370 770
375 775
380 780
385 785
390 790
395 795
400 800
405
410
415
Length of
air conduit
[in mm]
420
425
430
435
440
445
450
455
460
465
470
475
480
485
490
495
500
505
510
515
520
525
530
535
540
545
550
555
560
565
570
575
580
585
590