Evac 910 - EVAC 910 Toilet Flushing System; Flush Cycle Operation Explained

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VACUUM TOILET
OPERATION AND MAINTENANCE
Date:
Doc.
09 Dec 2010
002028-4
6543418 EVAC 910, WALL MODEL, PRESTIGE SILENT, WHITE
6543419 EVAC 910, WALL MODEL, MOSAIK, WHITE
6547226 EVAC 910, WALL MODEL, PRESTIGE SOFT CLOSING
6543420 EVAC 910, WALL MODEL USPH, PRESTIGE SILENT, WHITE
6543421 EVAC 910, WALL MODEL USPH, MOSAIK, WHITE
6544766 EVAC 910, WALL MODEL USPH, OPEN FRONT, WHITE
6547227 EVAC 910, WALL MODEL USPH, PRESTIGE SOFT CLOSING
Operation
The toilet is ushed by pressing the push button. The pneumatic push button is connected to the control mechanism
with a control hose, which transports the air pulse from the push button to the control mechanism. The air pulse
starts the ushing sequence and the control mechanism connects vacuum to the control connections of the water
valve and the discharge valve. The water valve opens and lets rinsing water ow into the bowl through the ushing
ring. After a short delay vacuum acts in discharge valve housing and forces the rubber diaphragm in discharge
valve to open. Contents of the bowl is drained to the vacuum sewer by a pressure difference between the bowl
and vacuum sewer. The ushing cycle in the control mechanism starts the closing cycle. Vacuum enters to the
relief valve. The relief valve opens the port between athmospheric air and the discharge valve. Athmospheric air
enters to the discharge valve witch closes immediatelly. After a short delay the atmospheric air pulse reaches to the
water valve and the relief valve. The water valve closes and lets a certain level of water at the bottom in the bowl.
After the ushing cycle has stopped the push button and the system will be ready for the next ush.
Discharge valve
Pneumatic push button
Flushing ring
Water valve
Water supply
connection
Control
mechanism
Control hose
Bowl
Relief valve