Explanation Of Symbols And Safety Instructions; Explanation Of Symbols - Bosch Greenstar combi 100 p Installation And Service Instructions For Contractors

14 Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
14.1 Description of various steps. . . . . . . . . . . . . . . . . . . . . . 49
14.1.1 Calling up the latest fault (service function 6.A). . . . . . 49
14.1.2 Fresh water filter in the cold water pipe. . . . . . . . . . . . . 49
14.1.3 Plate-type heat exchanger . . . . . . . . . . . . . . . . . . . . . . . 49
14.1.4 Checking electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
14.1.5 Burner servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
14.1.6 Heat exchanger block inspection and cleaning . . . . . . . 51
14.1.7 Cleaning condensate trap. . . . . . . . . . . . . . . . . . . . . . . . 53
14.1.8 Checking the mixer diaphragm . . . . . . . . . . . . . . . . . . . 53
14.1.9 Checking the expansion vessel . . . . . . . . . . . . . . . . . . . 53
14.1.10 Setting the boiler water pressure . . . . . . . . . . . . . . . . . 53
14.1.11 Testing system water quality . . . . . . . . . . . . . . . . . . . . . 53
14.1.12 Checking the electrical wiring . . . . . . . . . . . . . . . . . . . . 53
14.2 Maintenance and inspection checklist. . . . . . . . . . . . . . 54
15 Readings on the display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
16 Faults. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
16.1 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
16.2 Faults that are shown on the display . . . . . . . . . . . . . . . 56
16.3 Faults that are not shown on the display . . . . . . . . . . . . 58
16.4 Check sensor values . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
16.4.1 Outdoor temperature sensor (available as
accessory). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
16.4.2 Additional supply temperature limiter . . . . . . . . . . . . . . 59
16.4.3 Supply temperature sensor, DHW temperature
sensor, external supply temperature sensor . . . . . . . . . 59
16.5 Replacement code plug . . . . . . . . . . . . . . . . . . . . . . . . . 59
17 Commissioning log for the appliance. . . . . . . . . . . . . . . . . . . . 60
Greenstar combi 100 p / 151 p

Explanation of symbols and safety instructions | 3

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
minimizing danger are not taken.
The following keywords are defined and can be used in this document:
DANGER:
DANGER indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
WARNING:
WARNING indicates a hazardous situation which, if not avoided, could
result in death or serious injury.
CAUTION:
CAUTION indicates a hazardous situation which, if not avoided, could
result in minor to moderate injury.
NOTICE:
NOTICE is used to address practices not related to personal injury.
Important Information
The info symbol indicates important information where there is no risk to
people or property.
Additional symbols
Symbol Explanation
▶ Sequence of steps

Cross-reference to another part of the document
• Listing/list entry
- Listing/list entry (2nd level)
Table 1
6720872361 (2017/04)