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6. Commissioning
Only allow qualified personnel to commission the system (see 1.6).
The commissioning of the Watermanager GWM has to be done in
four steps
:
Step 1:
Commissioning at MainsWaterMode (control unit set to
Mains-water
)
– without connection to the greywater downpipe
(bypassing)
– avoid entering greywater into the greywater-reuse-system. Filling of greywater buffer tank/BMT-unit with mains
water. The automatic mains water back up system at the process water storage tank and the booster pump station are running
with mains water for water supply. It is recommended to remain with this operation state until all construction works at the build-
ing are finished.
Step 2:
After all construction works at the building have been finished the greywater downpipe is connected to the greywater-
reuse-system. When at least 25% of the building residential capacity has been reached the greywater buffer tank/BMT-unit is
inoculated with wastewater bacteria. It takes about 2 weeks until a strong wastewater bacteria culture has developed to treat
greywater successfully. The operation mode remains during that time still in
Mains-water
.
Step 3:
Commissioning to Automatic-Operation.
Step 4:
Control of filtration performance after 4 weeks of operation.
We do not recommend connecting the greywater inlet permanently with the system if building works are still being carried out in
the building
(step 1)
. We recommend installing a bypass of the greywater line directly into the sewer for this period. Only upon
commissioning of
step 2
should the greywater inlet line be fixed to the system.
Before commissioning the
Watermanager GWM,
you must ensure the following points:
•
The
Watermanager GWM
is electrically connected to all safety equipment according to the regulations.
•
The relevant VDE and country-specific regulations have been complied with and fulfilled.
•
Coarse filter inlet, overflow and drain are connected. Greywater inflow need to be connected by step 2.
•
Greywater inlet and overflow lines are connected.
•
Coarse filter backflow is connected to the process water network.
•
Drinking water feed is connected to the drinking water network.
•
Process water connection is connected to the process water line.
•
Hose lines for ventilation and filtration are connected.
•
Discharge valves are connected to tanks.
•
System is electrically connected as per regulations.
Take care that even in
step 1
the greywater buffer tank/BMT-unit is filled up with mains water during the
Mains-
water
operation. During
Mains-water
operation the greywater is ventilated by the air compressors. Without mains
water in the tank the operation will lead to severe damages at the components (air compressor).
After first contact with water the BMT-membrane filter needs to be submerged all time in water. After dry-out the
BMT-membrane filter is irreversible damaged.
6.1.
System operation until commissioning
