*****INTERNAL*****30 R_D proof- 26.10.2022 / 09:15:46- VaillantGroup\DOC-agt\Brand\VIH_QW_190_6\ENG\OI-II_GB_0020291525
0020291525_04 Operating instructions
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Operating instructions
Contents
Safety .................................................................... 4
Intended use .......................................................... 4
General safety information .................................... 4
Notes on the documentation .............................. 6
Product description............................................. 6
Heat pump system................................................. 6
Product design....................................................... 6
Opening the front flap ............................................ 6
Control elements.................................................... 6
Control panel ......................................................... 7
Description of the symbols .................................... 7
Functional description of buttons........................... 7
Type designation and serial number ..................... 8
CE marking ............................................................ 8
Benchmark............................................................. 8
Safety devices ....................................................... 8
Operation.............................................................. 8
Basic display.......................................................... 8
Operating concept ................................................. 9
Menu display.......................................................... 9
Starting up the product .......................................... 9
Setting the heating flow temperature................... 10
Setting the domestic hot water temperature........ 10
Switching off the product's functions ................... 10
Care and maintenance ...................................... 10
Caring for the product .......................................... 10
Maintenance ........................................................ 10
Reading maintenance messages ........................ 11
Checking the system pressure ............................ 11
Troubleshooting ................................................ 11
Reading fault messages ...................................... 11
Detecting and eliminating faults........................... 11
Decommissioning.............................................. 11
Temporarily decommissioning the product.......... 11
Permanently decommissioning the product......... 11
Recycling and disposal..................................... 11
Guarantee and customer service..................... 12
Customer service................................................. 12
Appendix ............................................................................ 13
A
Troubleshooting ................................................ 13