Keyword Index - Viessmann Vitocrossal CRU 800 Service Instructions For Contractors

Keyword index

A
Air pressure switch.....................................................57
Assembly
– Boiler....................................................................... 46
– Burner control unit...................................................52
– Casing..................................................................... 48
– MatriX-Disk burner.................................................. 50
– Overview................................................................. 45
– Vitotronic control unit...............................................54
B
Boiler, opening........................................................... 19
Boiler casing, closing................................................. 28
Boiler water requirements.......................................... 59
Boiler water temperature sensors.............................. 57
Burner
– Cleaning.................................................................. 22
– Fitting...................................................................... 24
Burner control unit......................................................31
– Configuration display...............................................33
– Display and programming unit................................ 31
– Operating display.................................................... 31
Burner door
– Checking................................................................. 22
– Closing.................................................................... 24
Burner gauze assembly, checking............................. 23
Burner start................................................................ 36
C
Calling up information................................................ 32
Checking
– Burner door............................................................. 22
– Burner gauze assembly.......................................... 23
– Condensate drain....................................................28
– Electrical connections..............................................11
– Expansion vessel.................................................... 28
– Filter element in gas line......................................... 26
– Flue gas damper..................................................... 13
– Gas connections..................................................... 26
– Gaskets................................................................... 28
– Gas train filter element............................................ 26
– Heating water side tightness................................... 10
– Ignition electrodes................................................... 24
– Ionisation current.....................................................17
– Ionisation electrode................................................. 24
– Mixer....................................................................... 29
– Neutralising system.................................................28
– Safety valves...........................................................29
– Sensor well..............................................................10
– Static pressure........................................................ 14
– Supply pressure...................................................... 14
– Thermal insulation...................................................30
– Tightness of gas train valves...................................25
– Ventilation air apertures.......................................... 30
– Water quality........................................................... 28
CO2 content, measuring............................................ 16
CO content, measuring.............................................. 17
Combustion chamber, cleaning..................................20
Combustion chamber opening................................... 20
Combustion chamber pressure monitoring................ 57
Combustion operation, service display...................... 35
Component overview, burner..................................... 56
Condensate drain, checking.......................................28
Condensate drain pipe, cleaning................................27
Configuration, changing............................................. 33
Connection diagram................................................... 58
D
Decommissioning.......................................................67
Delivered condition, resetting.....................................35
Description of state.................................................... 36
Diagnostics table........................................................39
Displayed fault codes........................................... 39, 42
Disposal..................................................................... 67
E
Electrical connections, checking................................ 11
Expansion vessel, checking....................................... 28
F
Fan pressure monitoring............................................ 57
Fault codes.................................................................39
Fault codes, detailed.................................................. 42
Fault display............................................................... 38
Fault history................................................................38
Fault memory............................................................. 38
Faults without fault display......................................... 43
Filling............................................................................9
Filter element checking, gas line................................26
Filter element checking, gas train.............................. 26
Final checks, performing............................................ 29
Flow diagram for burner start..................................... 36
Flow pressure.............................................................15
Flue gas damper, checking........................................ 13
Flue gas temperature, measuring.............................. 17
Flue gas temperature sensors................................... 57
G
Gas connections, checking tightness.........................26
Gas type
– Checking................................................................. 11
– Setting..................................................................... 12
H
Heating output reduction............................................ 14
Heating surfaces, cleaning.........................................20
Heating system, filling.................................................. 9
I
Ignition electrodes, checking......................................24
Information, calling up................................................ 32
Instructing the system user........................................ 30
Intended use................................................................ 5
Internal system faults................................................. 42
Ionisation current, checking....................................... 17
Ionisation electrode, checking....................................24
Keyword index
69