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Burner - Bosch ZSB 30-2 Installation And Servicing Instructions

Hydronic gas condensing boiler
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15.2.6 Burner

B Remove two screws [2] from top cover [1] and lift off
cover (
Fig. 69).
2
Fig. 69
B Remove clips [3], nuts [4] and [5] and two screws [7]
(
Fig. 69).
7
Fig. 70
B Remove burner cover [6].
B Remove burner and clean its components.
1
2
6 720 615 662-19.1O
3
4
5
6
7
6 720 615 662-20.1O
Fig. 71
B Refit burner, possibly with a new gasket, in reverse
order.
B Adjust the gas-air ratio (
Inspection/Servicing | 61
7 181 465 330-08.2R
page 50).
6 720 644 143 (2010/09)

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Zwb 37-2

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