Bosch Greenstar ZBR16-3A Operating Instructions Manual page 19

1 Emission test button for contractors (see installation
instructions)
2 Service button for contractors (see installation
instructions)
3 Burner ON indicator lamp
4 ON/OFF switch
5 Key pad lock
6 ECO button
7 Reset button
8 Display
9 Boiler water pressure gauge
10 DHW thermostat
11 Safety relief valve discharge hose
12 Condensate drain hose
13 Heating return pipe
14 Cold water pipe - combi boiler only
15 Gas pipe
16 DHW pipe - combi boiler only
17 Supply pipe
18 Boiler high limit dial
19 Mounting socket for outdoor reset controls
6 720 644 013 (2011/02)
Operation | 19