Table of contents
Tronic 3000T – 6 720 801 072 (2022/07)
2
Table of contents
1
Explanation of symbols and safety
information
1.1
Key to 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 a hazardous situation which, if not avoided,
will 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 or 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
Table 1
1 Explanation of symbols and safety information . . . . . .2
1.1 Key to symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
1.2 Safety information . . . . . . . . . . . . . . . . . . . . . . . . . . .3
2 Information about the product . . . . . . . . . . . . . . . . . . . .5
2.1 Models overview . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
2.2 Dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2.3 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
3 Installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.1 Water Chemistry Requirements . . . . . . . . . . . . . . . .8
3.2 Water Chemistry Requirements Table . . . . . . . . . . .8
3.3 Mounting the heater. . . . . . . . . . . . . . . . . . . . . . . . . .8
3.4 Pipe connections . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3.5 Closed system thermal expansion . . . . . . . . . . . . . .9
3.6 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . .9
4 Use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1 Starting and testing . . . . . . . . . . . . . . . . . . . . . . . . 11
4.2 Temperature setting. . . . . . . . . . . . . . . . . . . . . . . . 11
5 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.1 Removing the cover . . . . . . . . . . . . . . . . . . . . . . . . 11
5.2 Draining the heater . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3 Inspecting the anode rod. . . . . . . . . . . . . . . . . . . . 12
5.4 Removing the heating element . . . . . . . . . . . . . . . 12
5.5 Descaling the heating element . . . . . . . . . . . . . . . 13
6 Replacement of parts . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.1 Changing the anode rod . . . . . . . . . . . . . . . . . . . . 14
6.2 Changing the heating element. . . . . . . . . . . . . . . . 14
6.3 Changing the thermostat. . . . . . . . . . . . . . . . . . . . 14
7 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7.1 Resetting High Limit Switch . . . . . . . . . . . . . . . . . 15
7.2 Online Resources . . . . . . . . . . . . . . . . . . . . . . . . . . 15
8 Bosch interior component diagram. . . . . . . . . . . . . . . 16
9 Bosch Tronic 3000T LIMITED WARRANTY. . . . . . . . . 17
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)
Summary of Contents for ES 2.5
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