2 Operating instructions 0020308119_02
Operating instructions
Contents
1 Safety ............................................ 3
1.1 Intended use .................................. 3
1.2 Qualification ................................... 3
1.3 General safety information............. 3
2 Notes on the documentation ...... 6
3 Product description..................... 6
3.1 Display and control elements......... 6
3.2 Displayed symbols......................... 7
3.3 Serial number ................................ 7
3.4 CE marking .................................... 7
3.5 UKCA mark.................................... 8
3.6 Hot Water Association ................... 8
3.7 Benchmark..................................... 8
4 Operation...................................... 8
4.1 Operating concept ......................... 8
4.2 Setting the language...................... 9
4.3 Activating/deactivating the
button lock ................................... 10
4.4 Heating mode .............................. 10
4.5 DHW mode .................................. 10
4.6 Using the sensoROOM pure
(VRT 50/2) room temperature
control .......................................... 11
4.7 Calling up status codes................ 13
5 Care and maintenance .............. 13
5.1 Caring for the product .................. 13
5.2 Maintenance ................................ 13
5.3 Reading maintenance
messages .................................... 13
5.4 Maintaining the pressure of the
heating system............................. 13
5.5 Checking the condensate
discharge pipe and tundish.......... 16
6 Troubleshooting ........................ 16
7 Decommissioning...................... 16
7.1 Temporarily decommissioning
the product................................... 16
7.2 Permanently decommissioning
the product................................... 16
8 Restarting ................................... 16
9 Recycling and disposal............. 17
10 Guarantee and customer
service ........................................ 17
10.1 Guarantee.................................... 17
10.2 Customer service......................... 17
Appendix ............................................... 18
A End user level ............................ 18
A.1 Additional functions...................... 19
B Status codes .............................. 19
C Fault codes/limp home mode
codes .......................................... 20
D Troubleshooting ........................ 20
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