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Interior components diagram and parts list
45
9.3 Parts list
Item Description Reference
1 Front cover 8 705 421 837
2 Shield 8 705 506 661
3 Heat exchanger 8 705 406 285
4 Heat exchanger top gasket 8 704 701 052
5 Clip 8 716 102 607
6 Heat exchanger bottom gasket 8 704 701 054
7 O-ring 8 700 205 147
8 Temperature sensor 8 700 400 015
9 Washer 1/2" 8 710 103 045
10 Wireform spring 8 714 606 002
11 Air inlet duct 8 705 700 097
12 Water filter 8 700 507 001
13 O-ring 8 700 205 134
14 Water valve with engine 8 708 505 023
15 Main burner 8 708 120 515
16 Fan / Burner gasket 8 704 701 050
17 Set of electrodes 8 708 107 020
18 Exhaust Fan 8 707 204 039
19 Gas / Air Mixer 8 705 700 115
20 Mixer / Fan gasket 8 704 701 059
21 Gas valve washer 8 704 701 062
22 Gas valve 8 707 021 019
23 Gas valve washer 8 700 103 014
24 Remote control (optional accessory) TSTAT2
25 Control unit 8 707 207 268
26 Ignition cable 8 704 401 220
27 Cables / 24V 8 704 401 214
28 Cables 8 704 401 314
29 Power supply cord 8 704 401 221
30 Flue gas limiter 8 700 400 032
31 Flue gas exhaust accessory 8 705 504 137
32 Combustion air inlet accessory 8 705 504 115
33 Flue gas collector 8 705 700 100
34 Flue gas collector collar 8 705 700 114
35 Cold water pipe 8 700 715 156
36 Hot water pipe 8 700 715 155
37 Attenuator 8 705 700 142
38 Crossover tube 8 700 715 247
39 Overheat sensor (ECO) 8 707 206 204
40 Clip - Heat exchanger 8 701 201 028
42 Gasket Exhaust 8 700 103 710
43 Gasket Set Combustion Chamber 8 704 701 046
44 O-ring air duct 8 700 205 149
45 “BOSCH” decal 8 701 103 124
46 Cold water connection bushing 8 703 305 295
47 Hot water connection bushing 8 703 305 297
48 Mounting bracket 8 708 003 134
Table 13