Guide book
Instantaneous water heater system WM 400 V
Page 8 from 17
5.3 Waste water pump
The self-priming sewage pump is installed, ready for operation, in the water treatment.
She sucks the contaminated shower water through the pre-filter and then pumps it
through the two fine filters. The built-in pressure switch protects the filter plant from
excessive overpressure. While showering one automatic ensures that the pump is
started and runs during the entire process. A manual starting is possible with the key
"sewage pump start"
5.3.1 Model with 2 waste water pumps
Optionally, the WM 400 V can be equipped with a second sewage pump. This sucks in
parallel with the first sewage pump the contaminated shower water through a separate
filter and pumps it then subsequently through the two common fine filters. Typical use
case is a 5-chamber lock with two shower chambers
Optionl sewage pump
Sewage water suction connection
1. Pump
Sewage water suction connection
2. Pump
