EVAC reserves the right to make alterations to this specification without prior notice.
© Copyright Evac Oy. All rights reserved.
1
EVAC
Commercial Marine Equipment
V
V
V
V
VA
A
A
A
ACUUM
CUUM
CUUM
CUUM
CUUM T
T
T
T
TOILET
OILET
OILET
OILET
OILET
OPERATION AND MAINTENANCE
Date:
Doc.
25 Jan 2005
3:01103A
5775500
CONTROL MECHANISM, EVAC 90, SQUATTING TOILET
Operation
Operation
Operation
Operation
Operation
The functioning of the vacuum toilet is entirely controlled by the control mechanism.
Vacuum in the sewage piping system is the actuating medium.
Description of flushing sequence see doc. 3:01025C.
Jet 1 (doc. 3:01025C pos 5) controls the discharge valve opening time.
Jet 2 (see doc. 3:01025C pos 4) counters the effect of quick changes in the vacuum supply.
Jet 3 (doc. 3:01025C pos 15) delays the vacuum changes in chamber 14 (see doc. 3:01025C). This prevents a new
flushing procedure to start before the previous procedure has stopped.
Maintenance
Maintenance
Maintenance
Maintenance
Maintenance
Check that the air filters 4 and 5 are not blocked.
Check hoses and pipe connections for leaks.
Toilet discharge time
Jet 1 Short discharge period
Red jet
1.5 sec.
Normal discharge period
Blue jet
2.0 sec.
Longer discharge period
White jet
2.5 sec.
Less restriction shortens the time
Water valve opening time
Jet 6 Normal bowl water level
White jet
Low bowl water level
Blue jet
Pneumatic push button
Control mechanism
Jet 6
(Inside the plastic cover)
Water valve
Discharge valve
Filter 4
Filter 5 (Inlet for atmospheric air to
discharge and water valve)
Jet 3
Jet 2
Jet 1
