Viessmann VITOCAL 250-A - Page 16

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F.472 Communication with energy meter interrupted ......................... 112
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F.519 Communication error, BACnet .................................................. 113
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F.520 Communication error, Modbus .................................................. 113
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F.544 Lead break, flow temperature sensor HC 2 .............................. 113
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F.545 Short circuit, flow temperature sensor HC 2 ............................. 114
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F.546 Lead break, flow temperature sensor HC 3 .............................. 114
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F.547 Short circuit, flow temperature sensor HC 3 ............................. 114
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F.548 Lead break, flow temperature sensor HC 4 .............................. 115
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F.549 Short circuit, flow temperature sensor HC 4 ............................. 115
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F.578 Lead break, room temperature sensor, wireless remote control 115
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F.616 Incompatible software version in controller group recognised .. 116
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F.685 Communication error, HPMU electronics module ..................... 116
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F.686 Communication error, refrigerant circuit controller .................... 117
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F.687 Communication error, EHCU .................................................... 117
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F.744 Programming unit is not compatible ......................................... 118
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F.745 Incompatible system configuration ........................................... 118
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F.747 Internal error in programming unit ............................................ 119
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F.748 Fault in touch panel of programming unit ................................. 119
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F.749 Firmware versions of the control units are incompatible with
each other ........................................................................................... 119
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F.764 Another CAN bus subscriber reports a fault ............................. 119
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F.765 Communication error with another CAN bus subscriber ...........120
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F.770 Lead break, flow temperature sensor, secondary circuit .......... 120
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F.771 Short circuit, flow temperature sensor, secondary circuit ......... 120
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F.772 Lead break, compressor oil sump temperature sensor ............ 121
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F.773 Short circuit, compressor oil sump temperature sensor ........... 121
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F.788 Lead break, 4/3-way valve ........................................................121
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F.790 Mechanical fault, 4/3-way valve ................................................121
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F.791 Failure, instantaneous heating water heater, phase 1 .............. 122
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F.792 Failure, instantaneous heating water heater, phase 2 .............. 122
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F.793 Failure, instantaneous heating water heater, phase 3 .............. 123
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F.797 Mechanical fault, circulation pump, heating circuit 1 ................ 123
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F.798 Mechanical fault, circulation pump, heating circuit 2 ................ 124
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F.799 Electrical fault, circulation pump, heating circuit 1 .................... 124
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F.800 Electrical fault, circulation pump, heating circuit 2 .................... 124
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F.801 Malfunction, refrigerant circuit reversal valve ........................... 124
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F.808 Fault, lower fan ......................................................................... 125
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F.812 Fault, upper fan .........................................................................125
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F.819 Lead break, expansion valve 1 ................................................. 126
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F.820 Lead break, expansion valve 2 ................................................. 126
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F.823 Short circuit, expansion valve 1 ................................................ 127
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F.824 Short circuit, expansion valve 2 ................................................ 127
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F.830 Fault, inverter current sensor ....................................................127
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F.831 Fault, current sensor, power factor correction filter (PFC)
inverter ................................................................................................128
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F.832 Inverter temperature sensor (IPM) faulty .................................. 128
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F.833 Fault, temperature sensor, power factor correction filter (PFC)
inverter ................................................................................................128
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F.834 Inverter phase fault on mains side ............................................129
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F.835 Inverter parameter settings faulty ............................................. 129
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F.836 Load current of inverter too high (excess current) .................... 129
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F.837 Inverter electric phase connection to compressor faulty ...........130
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F.838 Inverter control faulty ................................................................ 130
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F.839 Compressor blocked .................................................................130
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F.840 Inverter phase currents to compressor asymmetrical ...............131
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F.841 Compressor torque too high ..................................................... 131
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F.842 Short circuit, inverter internal power module ............................ 131
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F.843 Inverter overcurrent shutdown, power factor correction filter
(PFC) .................................................................................................. 132
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F.844 Inverter, internal reference voltage fault ................................... 132
Index
Index
6218234