Table Of Contents; Explanation Of Symbols And Safety Instructions; Explanation Of Symbols - Bosch Worcester Greenstar 8000 Series Installation And Maintenance Instructions Manual

8.10.1 Checking and, if required, adjusting the gas/air
ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63
9 Replacement parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64
9.1 Draining the appliance . . . . . . . . . . . . . . . . . . . . . . . . . .64
9.2 Overheat thermostat removal . . . . . . . . . . . . . . . . . . . .65
9.3 Pressure sensor removal . . . . . . . . . . . . . . . . . . . . . . . .65
9.4 Pressure relief valve removal . . . . . . . . . . . . . . . . . . . . .65
9.5 Replacing the gas valve . . . . . . . . . . . . . . . . . . . . . . . . .65
9.6 Checking/replacing the motor of the 3-way valve. . . . .66
9.7 Replacing the optional 3-way valve . . . . . . . . . . . . . . . .66
9.8 Following inspection/maintenance . . . . . . . . . . . . . . . .66
10 Fault finding and diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
10.1 Operating and fault displays . . . . . . . . . . . . . . . . . . . . .67
10.1.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
10.1.2 Fault code table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67
10.1.3 Faults that are not displayed . . . . . . . . . . . . . . . . . . . . .69
11 Environmental protection and disposal . . . . . . . . . . . . . . . . .69
12 Technical Specifications/Logs . . . . . . . . . . . . . . . . . . . . . . . . .70
12.1 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70
12.1.1 Specifications System . . . . . . . . . . . . . . . . . . . . . . . . . .70
12.2 Ionisation current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
12.3 Component resistance characteristics . . . . . . . . . . . . .71
12.3.1 Sensor values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
12.4 Code plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .71
12.5 Pump characteristic map of the heating pump . . . . . . .71
12.6 Setting values for central heating/DHW output . . . . . .72
12.7 Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .73
12.8 Gas boiler system commissioning checklist . . . . . . . . .75
12.9 Inspection and maintenance checklist . . . . . . . . . . . . .76
12.10 Service record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .77
Greenstar 8000 Style - 6720883855 (2019/01)
1

Explanation of symbols and safety instructions

1.1

Explanation of symbols

Warnings
In warnings, signal words at the beginning of a warning are used to
indicate the type and seriousness of the ensuing risk if measures for
minimising danger are not taken.
The following signal words are defined and can be used in this document:
DANGER:
DANGER indicates that severe or life-threatening personal injury will
occur.
WARNING:
WARNING indicates that severe to life-threatening personal injury may
occur.
CAUTION:
CAUTION indicates that minor to medium personal injury may occur.
NOTICE:
NOTICE indicates that material damage may occur.
Important information
The info symbol indicates important information where there is no risk to
people or property.
Additional symbols
Symbol Meaning
▶ a step in an action sequence

a reference to a related part in the document
• a list entry
- a list entry (second level)
Table 1

Table of contents

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