geminox THR 2-13 M75, Technical Instructions

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1 - DESCRIPTION ...................................................................................................................................... 4
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1 - CHARACTERISTICS ............................................................................................................................. 5
2 - PIPE CONNECTION PARAMETERS.................................................................................................... 6
3 - DIMENSIONS ........................................................................................................................................ 6
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1 - PRINCIPLE ............................................................................................................................................ 7
1.1 - Components .............................................................................................................................. 7
1.2 - Control panel ............................................................................................................................. 9
1.3 - Operating diagram ................................................................................................................... 10
1.4 - Principle of air/gas servo-control system ................................................................................. 11
1.5 - Air pressure variation procedure ............................................................................................. 11
1.6 - Emission of pollutants .............................................................................................................. 11
2 - THE DIFFERENT VERSIONS OF THE THR ...................................................................................... 11
2.1 - The basic THR model (no outside sensor or room sensor) ..................................................... 11
2.2 - THR with outside sensor only .................................................................................................. 11
2.3 - THR with outside temperature sensor and room sensor ......................................................... 12
3 - FUNCTIONS COMMON TO THE DIFFERENT VERSIONS ............................................................... 14
3.1 - Antifreeze function (with QAC31 or/and QAA70) .................................................................... 14
3.2 - Anti-legionella function ............................................................................................................ 14
3.3 - Pump run-on after the end of heating ...................................................................................... 14
3.4 - Bypass valve and pump kick ................................................................................................... 14
3.5 - Boiler overheat protection ........................................................................................................ 14
3.6 - Anti-short burner cycle protection function .............................................................................. 14
3.7 - Adapting to an external solenoid safety valve ......................................................................... 14
3.8 - Functions activated using the control panel ............................................................................ 14
4 - HEAT EXCHANGER/CONDENSER.................................................................................................... 15
5 - GAS VALVE......................................................................................................................................... 15
6 - DOMESTIC HOT WATER TANKS ...................................................................................................... 16
6.1 - Principle ................................................................................................................................... 16
7 - DIGITAL DISPLAY............................................................................................................................... 17
7.1 - Normal operation ..................................................................................................................... 17
7.2 - List of display codes ................................................................................................................ 17
7.3 - List of alarm codes .................................................................................................................. 18