9
B20352 ECN-12354 (0301)
In some instances the power supply for the remote alarm is normally part of the electrical contract on pro-
posed constructions and should exist in any furnished facility. The following procedure should be followed:
1. Two alarm signal wire requiring
dry contacts should run to the
manifold
location.
2. Connect one signal wire to the
common (C) terminal and the
other signal wire to the normally
open (N/O) terminal on the
terminal strip on the right
side in the power supply box.
(Figure
10)
REMOTE ALARM HOOKUP
A five terminal remote alarm terminal strip is on the right side of the circuit board in the power supply box for
remote alarm interfacing. The top three terminals on the strip (N/C, N/O, and C) provide dry contacts for remote alarm
hookup. Wiring diagrams for remote audio/visual alarms are included with the alarms. Listed below are four different
remote alarm configurations. Terminals identified as N/O and N/C have been marked in the unactuated state.
If the remote alarm is designed for 24 VAC operation, then connect the alarm as follows:
(Also see WESTERN’S ALARM section on next page)
1. Connect the ground wire from
the alarm to one 24 VAC terminal
on the right side of the circuit
board in the power supply
box. (Figure 11)
2. A jumper wire is connected between
the other 24 VAC terminal
and the common (C) terminal.
3. Connect the “reserve in use” signal wire to the (N/C)
terminal.
4. If a “system normal” signal is also employed, connect
that signal wire to the normally open (N/O) terminal.
If the remote alarm is designed for voltages other than 24 VAC, then connect the alarm as follows:
1. Connect the ground wire from the
alarm to the negative (-) connection at the power
source. (Figure 12)
2. There should be NO connections
to the 24 VAC terminals on the
right side of the circuit board.
3. Connect the positive (+) connection
from the power source to the common
(C) terminal on the circuit board.
4. Connect the “reserve in use” signal wire to the
normally closed (N/C) terminal.
5. If a “system normal” signal is also employed, connect that signal wire to the normally open (N/O) terminal.
N/C
N/O
C
24
VAC
Figure 10
Figure 11
Figure 12
POWER
SOURCE
(+) (-)
N/C
N/O
C
24
VAC
