EQUIPMENT:
T1216W-C
PUBLICATION:
MARINEW-P-I
ISSUE No. & DATE:
1
11/12
© 2012 Thorn Security Ltd
PAGE 13 of 39
Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
5.3.3
Modification 3: [Fault Input from
T1216W-C]
The Fault Signal Interface Relay
Refer to Figure 7
for details.
The common fault relay logic circuit within the
WMRCP operates at 220Vac. It is recommended
that an additional relay is installed within the
WMRCP and contacts on this interface relay be
used to switch the 220Vac signal. Details for the
connections are shown in Figure 19 and Figure 20.
Generic specification for the interface relay:
Octal or 11-pin type.
Coil operating voltage range: 21Vdc to 28.5Vdc.
Contacts required: 1 x volt-free changeover
rated 1A at 250Vac minimum.
Terminal socket with relay retaining clip.
Temperature range -20 to +70 deg C.
Relay and socket approved to VDE or similar.
Fit the fault interface relay [RL FLT I/F] and connect
the N/O contact [relay de-energised] into TB2
terminals 7 and 8.
Site wiring
from
T1216W-C
24Vdc
Switched
0Vdc
N/C
N/O
P
Interface relay
shown de-energised
[T1216W-C fault]
Circuit Diagram for Additional Fault
Interface Relay to be fitted in WMRCP
50V 1Amp diode
[for suppression]
TB2/7
Panel
wiring
TB2/8
Figure 7
– Additional Fault Relay
5.4
Interconnections with the Water
Mist Relay Control Panel
The Water Mist Relay Controls Panel [WMRCP] is
supplied by Tyco Safety Product Korea.
This document assumes that the WMRCP is fully
and correctly installed and tested prior to carrying
out the final connections to the T1216W-C.
Before attempting access to the WMRCP to
carry out any modifications and connections
between the T1216W-C panel and the WMRCP,
ensure:
All the current technical documentation is
available for the WMRCP.
That the WMRCP is safe to work on and the
Water Mist System and any other plant or
equipment connected to or controlled by the
WMRPC is isolated/locked off and safe.
All necessary permits to work are in place.
The
Engineer
responsible
for
the
commissioning of the WMRCP system is
available and a procedure is in place which
includes the allocation of the various tasks
associated with carrying out the final
connections between the panels and testing
the T1216W-C--WMRCP system as a whole.
Any other vessel-specific precautions and
requirements are in place.
See Figure 19 and Figure 20 for details of the
interconnections between the T1216W-C and
WMRCP.
WARNING:
THE WMRCP CONTAINS HAZARDOUS
VOLTAGES.
5.4.1 Final Connections between the
T1216W and WMRCP
This procedure assumes that all interconnecting
cabling between the two panels has been correctly
installed, tested and the cores checked through and
identified at each end.
1. At the T1216W-C, ensure the panel is safe to
work on as described above.
2. Terminate the 15 cores for 14 zone fire signals
and common return into the appropriate
terminals in the T1216W-C. The 8 signal wires
for zones 1 to 8 should be connected to the
pole of relays 1 - 8 on the C1634 address 1.
[This is the left hand one of an adjacent pair of
C1634 output boards]. Signals for zones 9 to
14 should be connected to the pole of relays 1
- 6 on the C1634 address 2. [This is the right
hand one of an adjacent pair of C1634 output
boards].
3. The common return wire should be connected
into the normally open contact terminal on
relay 1A and a link should be installed to
common up all of the normally open contacts
on both C1634 boards. See Figure 20 for
details.
4. Record the identification numbers of each core
and its use [e.g. “Zone 1 fire signal”].
5. At the WMRCP, ensure the panel is safe to
work on as described above.
6. Identify the 15 cores of cable for each of the
controls. Using the WMRCP documentation,
connect each core into the appropriate
terminal on the WMRCP.
7. In the WMRCP, identify the terminals for
[Watermist] System Operated output signal [as
modified under section 5.3.2]. Connect 2 cores
to the appropriate terminals. Record the core
identification reference and circuit use.
8. In the WMRCP, identify the terminals for
[Watermist] System Abnormal output signal [as
modified under section 5.3.1]. Connect 2 cores
