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10
Troubleshooting .............................................. 229
10.1
Contacting your service partner......................... 229
10.2
Displaying the data overview (current sensor
values) ............................................................... 229
10.3
Displaying status codes (current product
status) ................................................................ 230
10.4
Checking fault codes ......................................... 230
10.5
Querying the fault memory ................................ 230
10.6
Limp home mode messages ............................. 230
10.7
Using check programmes and actuator tests .... 230
10.8
Resetting parameters to factory settings ........... 230
11
Inspection and maintenance .......................... 230
11.1
Inspection and maintenance information........... 230
11.2
Procuring spare parts ........................................ 230
11.3
Checking maintenance messages..................... 230
11.4
Observing inspection and maintenance
intervals ............................................................. 231
11.5
Preparing for inspection and maintenance ........ 231
11.6
Checking the pre-charge pressure of the
expansion vessel ............................................... 231
11.7
Checking and, if required, replacing the
magnesium protection anode ............................ 231
11.8
Checking and cleaning the magnetite
separator............................................................ 232
11.9
Cleaning the domestic hot water cylinder.......... 233
11.10
Checking and correcting the filling pressure
of the heating installation ................................... 233
11.11
Checking the refrigerant circuit .......................... 233
11.12
Checking the refrigerant circuit for tightness ..... 233
11.13
Checking the electrical connections .................. 233
11.14
Completing inspection and maintenance........... 233
12
Repair and service........................................... 233
12.1
Preparing repair and service work..................... 233
12.2
Safety cut-out..................................................... 234
12.3
Replace the safety cut-out ................................. 235
12.4
Draining the product's heating circuit................. 235
12.5
Draining the product's domestic hot water
circuit ................................................................. 235
12.6
Draining the heating installation ........................ 236
12.7
Replacing components of the refrigerant
circuit ................................................................. 236
12.8
Replacing electrical components....................... 237
12.9
Completing repair and service work .................. 237
13
Decommissioning............................................ 237
13.1
Temporarily decommissioning the product........ 237
13.2
Permanently decommissioning the product....... 237
14
Recycling and disposal................................... 238
14.1
Disposing of the packaging ............................... 238
14.2
Disposing of the product and accessories......... 238
14.3
Disposing of the refrigerant ............................... 238
15
Customer service............................................. 238
Appendix .......................................................................... 239
A
Required opening areas in the passage
for natural ventilation airflow network
(cm²) .................................................................. 239
8000017440_FT Installation and maintenance instructions
B
Functional diagrams........................................ 240
B.1
Functional diagram ............................................ 240
B.2
Functional diagram ............................................ 241
C
Wiring diagrams............................................... 242
C.1
Power supply PCB............................................. 242
C.2
Control PCB....................................................... 243
D
Basic connection diagram for the energy
supply company lockout, shutdown via
connection S21 ................................................ 245
E
Installer level menu structure (without
control module or system control) ................ 246
E.1
Installer level menu overview ............................ 246
E.2
Menu item: Data overview ................................. 246
E.3
Menu item: Installation assistant ....................... 247
E.4
Menu item: QR service code ............................. 247
E.5
Menu item: Competent person's contact
details ................................................................ 247
E.6
Menu item: Service date .................................... 247
E.7
Menu item: Test programmes............................ 247
E.8
Menu item: Diagnostics codes........................... 248
E.9
Menu item: Fault history .................................... 251
E.10
Menu item: Limp home mode history ................ 251
E.11
Installation configuration menu item .................. 251
E.12
Menu item: Screed drying.................................. 253
E.13
Menu item: Reset............................................... 253
E.14
Menu item: Factory settings .............................. 254
F
Installer level menu structure (expanded
and additional functions with control
module or system control).............................. 254
F.1
Menu item: Noise reduction mode..................... 254
F.2
Menu item: Installation....................................... 254
F.3
Menu item: Circuit.............................................. 254
G
Status codes .................................................... 255
H
Maintenance codes.......................................... 257
I
Reversible limp home mode codes ............... 257
J
Irreversible limp home mode codes .............. 258
K
Fault codes....................................................... 258
L
5.4 kW electric back-up heater ....................... 263
M
Inspection and maintenance work ................. 264
N
Characteristic values for the temperature
sensor, refrigeration circuit ............................ 264
O
Characteristic values for the internal
temperature sensors, hydraulic circuit ......... 265
P
Characteristic values for internal
temperature sensors, cylinder
temperature ...................................................... 265
Q
Characteristic values for the VRC DCF
outdoor temperature sensor........................... 266
R
Technical data.................................................. 267
Index ................................................................................. 269
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