T1216W-C
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to the appropriate terminals. Record the core
identification reference and circuit use.
9. In the WMRCP, identify the additional fault
interface relay described in section 5.3.3. The
normally open relay contacts [relay de-
energised] should be connected to terminals 7
and 8 on TB2. Connect 2 cores of the field
cable to the relay coil. Record the core
identification references, circuit purpose and
polarity. [The core connected to the cathode of
the suppression diode will be the +ve core].
10. At the T1216W-C, identify the cable cores
connected to the WMRCP for the [Watermist]
System Operated and [Watermist] System
Abnormal outputs. Connect System Operated
to Z15+ and Z15- on the C1627 motherboard.
Connect System Abnormal to Z16+ and Z16-.
Polarity is not important.
11. At the T1216W-C, identify the cores for the
signal to the additional fault interface relay in
the WMRCP. Test the circuit to ensure the
cable is fault free and the cores are marked
with the correct polarity. Connect the cores as
follows:
Cable Core
T1216W-C Terminal on
C1627 Motherboard
positive
Aux DC 24V
negative
Fault Routing C/-
12. Install a wire link between Aux DC 0V and
Fault Routing terminal P.
13. Ensure that the 6-way link below the Fault
Routing terminals is removed to allow the relay
to operate as volt-free contacts.
14. This completes the connections required.
5.5
Replacing the Display Inserts
The display overlay is adhered to the display PCB
and is fitted with a series of text label inserts to
identify the various user controls and indications.
The inserts slip into pockets in the overlay and
provide a flexible method of providing foreign
language variants without affecting the overlay. The
panel is provided with one set of standard English
text inserts fitted. These inserts are reversible with
the rear blank to allow small volume language
variants to be typed. Since one of the panel’s
configurable options allows manual activation of the
fire alarms in either the Manual Fire Alarm or
Muster mode, an additional English text insert is
provided for the switch section
– one side identifies
the top left hand switch and LED as “Manual Fire
Alarm” the other side identifies this switch as
“Muster”.
Additional double sided inserts may be supplied for
Chinese or Japanese applications.
5.5.1 To change the inserts
1.
Isolate the mains supply to the panel.
2.
Disconnect the batteries at the battery box.
3.
The panel buzzer will sound continuously due
to total loss of power. Open the panel door.
4.
Locate and disconnect the wire from the 9V
battery holder at J4 on the back of the display
board (bottom-centre). [The PP3 battery is
fixed to the display frame below the display
board]. The buzzer will silence.
5.
Disconnect the buzzer lead from the display
board (either connected at the bottom (J5) or
top (J6).
6.
Use an M3 box spanner to loosen and remove
the nuts and plain washers holding the display
frame. Store the nuts and washers safely for
re-fitting.
7.
If the optional door stay is fitted then this will
need to be removed from the frame.
8.
Remove the frame and store it safely.
9.
To separate the display from the seal, carefully
apply moderate pressure to the front of the
display at the edge of the rectangular hole in
the door. Work progressively from the starting
point around the edge of the PCB back to the
starting point.
10. When the display PCB is free of the seal,
remove the PCB from the door studs. Carefully
work the PCB off the studs keeping the PCB
parallel to the door to prevent it jamming.
11. The insert tabs can clearly be seen projecting
from the edge of the PCB. Pull the tabs
carefully to remove the inserts.
12. To re-fit an insert, locate the gap between the
PCB and the overlay and slide a corner of the
insert in. Straighten the angle of entry, hold the
insert near the point of entry rather than at the
end and feed the insert down until the leading
edge of the insert is fully home.
13. Visually inspect the front of the display to
ensure the inserts are correctly located.
14. Re-fit the PCB to the studs on the door,
making sure that the display is the correct way
up.
15. Work the PCB down the studs keeping the
board parallel to the door to prevent jamming.
16. When the board is down on the studs, apply
light pressure around the outside edge of the
board to ensure it is correctly seated on the
seal.
17. Refit the frame with the battery located
towards the bottom of the door.
18. When the frame is fully down on the studs,
apply light pressure around the outside edge to
ensure it is correctly seated.
