Interior Components And Diagram Parts List - Bosch 520-HN-N User Instructions

Flow modulated with hydro-generated ignition suitable for heating potable water only - not approved for space heating purposes (intended for variable flow applications with steady cold water inlet temperatures)
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Interior components and diagram parts list

8
Interior components and diagram parts list
8.1
Interior components
30
51
9
26
22
Fig. 27 Functional scheme
4
Heat exchanger
5
Burner
9
Ignition unit
10
Flow control knob
11
Water valve
20
Gas connection
21
Flexible cold inlet
24
22
Flexible hot outlet
26
Power adjustment knob
30
Pilot burner
51
on/off button
4
5
10
11
21
20
6720608036-04.3AL
6 720 644 942

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520-hn-l

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