Viessmann Vitovalor PT2 E11T Installation And Service Instructions Manual page 5

Index
4. Commissioning, inspec-
tion, maintenance
5. System configuration
(parameters)
6. Diagnosis and service
checks
7. Troubleshooting
8. Parts lists
Steps - commissioning, inspection and maintenance ............................ 47
Calling up parameters ............................................................................ 83
General .................................................................................................. 83
Boiler ...................................................................................................... 85
DHW ...................................................................................................... 87
Heating circuit 1, Heating circuit 2, Heating circuit 3, Heating circuit 4 .. 88
Fuel cell ................................................................................................. 95
Gas condensing module ........................................................................ 97
Service menu ...................................................................................... 97
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Changing the service password ......................................................... 97
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Resetting all passwords to the factory setting .................................... 98
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Diagnosis ............................................................................................ 98
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Checking outputs (actuator and sensor test) ...................................... 98
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Fuel cell module .....................................................................................100
Checking power generated .................................................................100
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Checking the gas consumption to reclaim fuel tax ............................. 101
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Checking operating condition ............................................................. 101
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Checking grid monitoring parameters .................................................101
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Removing the SD card ....................................................................... 102
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Inserting the SD card and saving the fuel cell module data ............... 102
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Fault indicator on the programming unit ................................................ 103
Fault messages for gas condensing module ......................................... 104
Fault codes, fuel cell module ................................................................. 126
Repairs .................................................................................................. 126
Putting the control unit into the service position ................................. 126
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Draining the system on the heating water and DHW sides ................ 127
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Checking the temperature sensors .....................................................130
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Checking the cylinder loading plate heat exchanger .......................... 132
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Checking the system separation plate heat exchanger ...................... 132
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Removing the flow sensor .................................................................. 133
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Removing the hydraulic unit ............................................................... 134
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Replacing the power cable ................................................................. 134
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Checking the fuse ............................................................................... 135
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Mixer extension kit .............................................................................. 135
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Overview of gas condensing module and fuel cell module ....................137
Assembly, Vitovalor sheet metal sections ..............................................138
Casing assembly ................................................................................... 140
Heat cell assembly .................................................................................142
Heat cell module assembly ....................................................................144
Burner assembly ....................................................................................146
Vitovalor hydraulic assembly ................................................................. 148
Hydraulic assembly ................................................................................150
Control unit / electrical components assembly ...................................... 152
HMU/MCU/BCU (control unit and burner control unit) assembly ...........154
Mains distributor box assembly ............................................................. 156
HMI programming unit assembly ........................................................... 158
Fuel cell assembly ................................................................................. 160
Miscellaneous assembly ........................................................................162
Overview cylinder module ......................................................................165
Casing assembly DCF 180 D1 .............................................................. 168
Cylinder module PCB with mounting plate assembly ............................ 170
Cylinder module PCB assembly ............................................................ 172
Vitovalor hydraulics assembly ............................................................... 174
Hydraulics assembly, system separation circuit .................................... 176
Cylinder module assembly .....................................................................178
Index
5