Viessmann Vitovalor 300-P Installation And Service Instructions For Contractors page 5

Index
5. Codes
6. Diagnosis and service
scans
7. Troubleshooting
8. Parts lists
Coding level 1 ........................................................................................ 92
Calling up coding level 1 ..................................................................... 92
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"General" ........................................................................................... 92
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"Boiler" .............................................................................................. 93
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"DHW" ................................................................................................ 94
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"Heating circuit ..." ........................................................................... 94
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Coding level 2 ........................................................................................ 98
Calling up coding level 2 ..................................................................... 98
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"General" ........................................................................................... 98
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"Boiler" .............................................................................................. 103
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"DHW" ................................................................................................103
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"Heating circuit ..." ........................................................................... 105
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Gas condensing module ........................................................................ 110
Service menu ...................................................................................... 110
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Diagnosis ............................................................................................ 111
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Checking outputs (actuator test) ......................................................... 112
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Fuel cell module .....................................................................................113
Calling up power generated ................................................................ 113
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Calling up operating condition ............................................................ 113
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Calling up grid monitoring parameters ................................................ 113
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Resetting fuel cell module data .......................................................... 114
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Fault display on gas condensing module ...............................................115
Fault codes for gas condensing module ................................................ 115
Fault display, fuel cell module ................................................................ 122
Fault messages .................................................................................. 123
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Repairs (gas condensing module) ......................................................... 123
Putting the control unit into the service position ................................. 123
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Draining the system on the heating water and DHW sides ................ 123
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Checking the outside temperature sensor .......................................... 126
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Checking the boiler water temperature sensor, cylinder temperature
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sensor or flow temperature sensor of low loss header ....................... 127
Checking the outlet temperature sensor .............................................128
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Checking the return temperature sensor ............................................ 129
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Checking the buffer temperature sensor ............................................ 130
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Checking the plate heat exchanger .................................................... 130
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Checking the flue gas temperature sensor ......................................... 131
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Checking the temperature limiter ........................................................133
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Checking the fuse/MCB ...................................................................... 134
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Mixer extension kit .............................................................................. 134
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Checking the Vitotronic 200-H (accessories) ......................................135
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Overview of assemblies .........................................................................137
Casing assembly ................................................................................... 138
Heat cell assembly .................................................................................140
Burner assembly ....................................................................................144
Heat cell hydraulic assembly ................................................................. 146
External connection assembly ............................................................... 148
Buffer cylinder assembly ........................................................................150
DHW cylinder assembly .........................................................................152
Miscellaneous assembly ........................................................................154
Vitovalor VBC 132 control unit assembly ...............................................156
Vitovalor VUC 170 control unit assembly .............................................. 158
Fuel cell assembly ................................................................................. 160
Index
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