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8.1
Typical Control System
The installation on site has to make sure that in case of any loss of power supply
and/or loss of air supply for the automatic stopping device the overboard
discharge valve close the overboard line and open the re-circulating line.
The system showed in the example, employs alarm relay 2 to control a
pneumatic solenoid valve which energises or de-energises a pneumatically
operated 3 - way valve as depicted in Fig. 5.
The separation process will continue until such time as the pollution level falls
below the alarm set point at which time the discharge will be directed overboard.
A pump stop system is according MEPC.107 (49) not allowed.
9.0
POWER SUPPLY
See Section 2 for important notes.
The unit is designed for a power supply of 24 V to 240 V AC or DC. It has an
automatic power selection.
10.0 COMMISSIONING
See Section 2 for important notes.
On completion of the installation, wiring and piping carry out the following checks:
10.1 Electrical
a) Check that the power supply is connected to the terminals 1 + 2 of the
terminal block.
b) Check the wiring of the automatic stopping device and to the alarm system is
according the IMO Requirements.
c) Check that the grounding has been made according to the relevant
regulations.
10.2 Piping
a) Check all piping connections for leaks and rectify as appropriate.
Issue: 27.05.08
DECKMA HAMBURG GmbH
Instruction Manual OMD-2005
Page 13 of 25
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