Siemens QAA55.110 User Manual

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Siemens Switzerland Ltd User manual RVS61.843 CE1U2355en_02
HVAC Products 1 Summary 23. November 2007
6.12 Heat pump ...................................................................................................102
Function diagrams .......................................................................................102
Condenser pump .........................................................................................103
Source pump................................................................................................104
Compressor control in plants without buffer or combi storage tank .............105
Compressor control in plants with buffer or combi storage tank ..................106
Compressor settings ....................................................................................107
Compressor 2 ..............................................................................................109
Electric immersion heater in the flow ...........................................................111
Heat pump protection during DHW charging ...............................................113
General parameters .....................................................................................114
Defrost function for air-to-water HP .............................................................116
Automatic defrost function ...........................................................................117
Frost protection for the heat pump...............................................................119
Cooling.........................................................................................................119
6.13 Cascade.......................................................................................................123
Control .........................................................................................................123
Heat source sequence .................................................................................123
Electric immersion heaters in the cascade ..................................................124
6.14 Solar.............................................................................................................125
Summary......................................................................................................125
Charging controller solar (dT) ......................................................................125
Priority..........................................................................................................126
Start function................................................................................................127
Frost protection for the collector ..................................................................127
Overtemperature protection for the collector ...............................................127
Medium’s evaporation temperature .............................................................128
Speed control...............................................................................................128
Yield measurement ......................................................................................128
6.15 Buffer storage tank.......................................................................................129
Summary......................................................................................................129
Forced charging ...........................................................................................129
Automatic locks............................................................................................130
Stratification protection ................................................................................131
Overtemperature protection .........................................................................131
Recooling .....................................................................................................132
Electric immersion heater ............................................................................132
Solar integration...........................................................................................133
6.16 DHW storage tank........................................................................................133
Abortion of DHW charging ...........................................................................133
Charging control...........................................................................................133
Overtemperature protection .........................................................................134
Recooling .....................................................................................................134
Electric immersion heater ............................................................................135
Excess heat draw.........................................................................................136
Plant hydraulics............................................................................................136
Speed-controlled pump................................................................................137
6.17 Instantaneous DHW heater..........................................................................138
Summary......................................................................................................138
Setpoints ......................................................................................................138
Speed-controlled pump................................................................................138
Mixing valve control .....................................................................................139
6.18 Configuration................................................................................................139

Siemens QAA55.110 Specifications

General

Brand	Siemens
Model	QAA55.110
Category	Controller
Language	English