Viessmann Vitogas 050 ECD Series Installation & Service Manual page 21

Vitogas 050, ECD Series
Cast Iron Atmospheric Gas-Fired
(exploded view example of ECD-140 / ECD-155)
Inspection opening for heat exchanger
4
3
12
1
Fig. 13
Note: Ref. No. 19 not shown, as only applicable to ECD-180 / ECD-200.
Note: Ref. No. 35 is at a different location for the ECD-180 / ECD-200.
10
9
47
41
14
38
20
17
26
27
42
43
11
2
40
13
16
39
18
15
24
33
23
32
21
7
45
46
35
48
44
6
34
5
29,30
22
25
37
28
8
36
21