Gebwell GEMINI 40, Installation, Operation And Maintenance Manual

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Gebwell Gemini Installation, operation, and maintenance manual
Table of
contents
1 WARRANTY............................................................................................................................................................................. 5
2 INSTALLATION RECORD .................................................................................................................................................... 7
3 HEAT PUMP OPERATING INSTRUCTIONS ..................................................................................................................... 8
3.1 General ....................................................................................................................................................................................... 8
3.2 Ground source heat energy ......................................................................................................................................................... 8
3.3 Ground source cooling ............................................................................................................................................................... 8
3.4 Heat pump’s operating principle ................................................................................................................................................ 8
3.5 Heating functions ....................................................................................................................................................................... 9
3.6 Tips for saving ............................................................................................................................................................................ 9
4 DELIVERY AND HANDLING ............................................................................................................................................ 10
4.1 Delivery contents ...................................................................................................................................................................... 10
4.2 Optional accessories ................................................................................................................................................................. 10
4.3 Storage...................................................................................................................................................................................... 10
4.4 Transport .................................................................................................................................................................................. 10
4.5 Removal from package and transport to final installation location ........................................................................................... 10
4.6 Safety instructions .................................................................................................................................................................... 10
4.7 Heat pump’s location ................................................................................................................................................................ 11
4.8 Mounting and unmounting the upper compressor unit ............................................................................................................. 11
5 HEAT PUMP STRUCTURE ................................................................................................................................................. 12
5.1 GEMINI structure..................................................................................................................................................................... 12
5.2 Sensors ..................................................................................................................................................................................... 13
5.3 Pumps ....................................................................................................................................................................................... 13
5.4 Control valves .......................................................................................................................................................................... 13
5.5 Other controls ........................................................................................................................................................................... 13
6 DIMENSIONS AND PIPE CONNECTIONS ....................................................................................................................... 14
6.1 Heat pump connections ............................................................................................................................................................ 14
6.2 Pipe connections ....................................................................................................................................................................... 14
7 PIPE INSTALLATION .......................................................................................................................................................... 15
7.1 Collector ................................................................................................................................................................................... 15
7.2 Charging circuit ........................................................................................................................................................................ 16
7.3 Connections of an additional heat source ................................................................................................................................. 18
7.4 Extraction air heat recovery ...................................................................................................................................................... 18
7.5 Connections for external fixed fuel burners ............................................................................................................................. 18
7.6 Connecting of domestic hot water system ................................................................................................................................ 18
8 ELECTRICAL CONNECTIONS .......................................................................................................................................... 20
8.1 General ..................................................................................................................................................................................... 20
8.2 Power supply ............................................................................................................................................................................ 20
8.3 Compressor’s motor protection switches (F1 and F2) .............................................................................................................. 20
8.4 Phase sequence / soft starter ..................................................................................................................................................... 20
8.5 Connection of temperature sensors ........................................................................................................................................... 20
8.6 Connection of the domestic hot water charging package (HWExE) ......................................................................................... 21
8.7 Connection of domestic hot water mixing valve (HWEx) ........................................................................................................ 21
8.8 Control of electric heaters in the accumulator / sequence controlled additional heating .......................................................... 21
8.9 Change-over valve(s) ............................................................................................................................................................... 22
8.10 Heating circuits ........................................................................................................................................................................ 22
8.11 Domestic hot water’s circulation pump .................................................................................................................................... 23
8.12 Connection of external source pump ........................................................................................................................................ 23
8.13 Connection of room unit, QAA74 ............................................................................................................................................ 23
8.14 Room sensor (acceossory) QAA55. ......................................................................................................................................... 23
8.15 Alarm forwarding ..................................................................................................................................................................... 23
8.16 Call for heating 0-10V .............................................................................................................................................................. 23
8.17 External prevention of activation / release signal ..................................................................................................................... 23
8.18 Tariff control ............................................................................................................................................................................ 24
8.19 Installation of extension module ............................................................................................................................................... 24
8.20 Connection of a cascade connection ......................................................................................................................................... 24
8.21 Connection of additional heat source ....................................................................................................................................... 24
9 FILLING AND VENTING ..................................................................................................................................................... 25
9.1 Heating system ......................................................................................................................................................................... 25
9.2 Filling the collector, non-pressurised ....................................................................................................................................... 25
9.3 Pressure test of the collector ..................................................................................................................................................... 25