OMD Technical Note TN18001
Carrier Fire & Security
8 Newmarket Court, Page 11 of 14
Chippenham Drive,
Kingston, Milton Keynes, MK10 0AQ
2. Highlight any holes that are either NOT or incorrectly blanked off as these will affect the
IP65 and EMC rating.
3. Internally inspect all Mk7 Control Unit(s) in the OMD system.
4. All Detectors installed on the engine(s) plus any Detector Heads which are considered as
usable spares by the vessel (external view), document the status of the LEDs on each
Detector.
5. The Remote Display Unit is showing the correct number of Engines and Detectors on
each Engine.
6. All other enclosures (external view) and wiring used to connect the OMD relay contacts
to the vessel Alarm Monitoring & Engine Shutdown systems.
7. Document the software versions of all system components.
As part of this work document any concerns with:-
a. Corrosion.
b. Evidence of burnt components.
c. Poor quality wiring or incorrectly specified cabling used for power and data
communication.
d. Missing or incorrect EMC glands.
e. Missing or incorrect screening & earthing.
f. Missing blanking plugs or caps.
8. Inspect the contents of the Mk7 Event log.
It is important to understand the contents of the Mk7 Event log as diagnosing and removing
the reason for these fault Messages will be part of the Service visit.
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