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VISTA-50P/VISTA-50PUL Installation and Setup Guide
Using 4-Wire Smoke Detectors on Zones 1-8
You may use as many 4-wire smoke detectors as can be
powered from the panel's Auxiliary Power output
without exceeding the output's rating (750mA).
Auxiliary power to 4-wire smoke detectors is
not automatically reset after an alarm, and
therefore must be momentarily interrupted
using either the J7 smoke detector reset output
trigger or a 4204 Relay Module.
Compatible 4-Wire Smoke Detectors
Use any UL Listed 4-wire smoke detector that is rated
for 10-14VDC operation and that has alarm reset time
not exceeding 6 seconds. Some compatible 4-wire
smoke detectors are listed below.
Detector Type
Photoelectric, direct wire
Photoelectric w/heat
sensor, direct wire
Ionization, direct wire
Wiring 4-Wire Smoke Detectors
TO
AUXILIARY
POWER
TERMINALS
NOTES:
· PROGRAM THE RELAY TO
TRANSFER ON FIRE ZONE
RESET (ACTIVATION CODE 54).
SEE 4204 RELAY MODULE
SECTION FOR DETAILS.
· SECOND CODE AND OFF
ENTERED AT CONSOLE
MOMENTARILY INTERRUPTS
DETECTOR POWER.
Using Smoke Power Reversal Module
The 333 PRM Polarity Reversing Module is used to
reverse the polarity of the positive and negative
voltages powering smoke detectors. The module is for
use with 4-wire smoke detectors that employ a sounder
and voltage-reversing feature. The module is triggered
by a pulsing bell output.
Smoke Detectors Compatible with the 333PRM
The 333PRM may be used with the System Sensor
2112/24AT and similar models with the required
operating features previously stated.
3-8
Detector Model #
System Sensor 2412
System Sensor 2412TH
System Sensor 1412
_
+
NO CONNECTION
C
NC
NO
RESET
RELAY 1, 2, 3, OR 4
4204 RELAY MODULE
Figure 3-11: 4-Wire Smoke Detectors
WWW.DIYALARMFORUM.COM
Power to 4-wire smoke detectors must be
U L
supervised with an EOL device (use a System
Sensor A77-716B EOL relay module
connected as shown in Figure 3-11).
To wire 4-wire smoke detectors to zones 1-8, perform
the following steps:
Step
Action
1
Select 4-wire smoke detectors (see list of
compatible detectors shown previously in
this section).
2
Connect detectors (including heat detectors,
if used) across terminals of the zone selected.
All detectors must be wired in parallel. See
Figure 3-11.
3
Connect the EOLR at the last detector in the
loop across the zone's terminals. You must
connect the EOLR across the loop wires
at the last detector.
4-WIRE
SMOKE
DETECTORS
+
+
_
HEAT
DETECTOR
_
+
TO
FIRE ZONE
TERMINALS
The 333PRM reverses polarity to smoke detectors
with Integral Temp-3 Sounders. Typically, in
alarm, each draws 49-60mA of current. The
control panel supplies only enough current for one
smoke detector. In order to attach more than
one, an external power supply and an external
relay may be required.
Installing the 333 PRM
Mount the 333 PRM inside the control panel's cabinet
or in a separate cabinet using the double-sided tape
provided. Wire the 333PRM as shown in Figures 3-12,
3-13, or 3-14. Refer to the 333PRM Installation
Instructions for detailed information on the installation
of the module.
_
+
EOL POWER
SUPERVISION
RELAY MODULE
_
A77-716B
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST.
2k
EOLR
V128BP-002-V0
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