Installation , Operation and Maintenance Instructions Genius
9.2.7 SacricialAnode
To replace the sacricial anode, the heat pump module must be removed and the water must be drained from the tank by one third.
Pull out the heat pump module
" Loosen the two inlet and outlet nozzles on the rear side of the unit.
" Depressurize the connection pipes.
" Disconnect the two connections below the heat pump module.
" Disconnect the plug below the heat pump module on the left side.
" Disconnect the expansion valve plug connection on the board. For precise information please refer to the electric wiring diagram in
the appendix.
" Loosen screws M6 on the front of the left and right guide rails with an allen key.
» The support of the heat pump module is lowered by approx. 1.5 cm.
" Pull out the lowered module.
Drain water
" Close the cold water supply.
" Connect a hose to the drain valve.
" Open a water tapping point during the drain procedure to prevent negative pressure.
" Drain the water of the tank by one third (about 50 litres).
Changesacricialanode
" Unscrew the sacricial anode an replace it by a new one.
" Install the heat pump module in reverse order.
" Fill the tank completely.
9.2.8 Electric Heating Rod
The hydraulic circuit is equipped with an electric heating rod of 3 kW. To protect the heating element against overheating, a safety tem-
perature limiter (STL) is mounted on the component. Tripping of the STL interrupts the power supply and cuts off the electric heating rod.
Check
" The STL has triggered when the black splint pin of the STL sticks out.
Suppression
" Push the splint pin in to clear the STL fault.
NOTE
More detailed information about the electrical wiring, refer to the wiring diagram chapter „16 Appendix“ page 106.
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Genius - V 1.0
Service