Honeywell VISTA-128BP - Figure 3-11: 4-Wire Smoke Detectors; Figure 3-12 A: Wiring a 333 PRM to the Control

VISTA-128BP/VISTA-250BP Installation and Setup Guide
3-8
+
_
+
_
+
+
_
_
_
+
HEAT
DETECTOR
4-WIRE
SMOKE
DETECTORS
V128BP-002-V0
NO CONNECTION
C
NC
NO
RESET
RELAY 1, 2, 3, OR 4
4204 RELAY MODULE
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.
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST.
EOL POWER
SUPERVISION
RELAY MODULE
A77-716B
2k
EOLR
TO
FIRE ZONE
TERMINALS
TO
AUXILIARY
POWER
TERMINALS
Figure 3-11: 4-Wire Smoke Detectors
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.
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 3-12a,
b or c. Refer to the 333PRM Installation Instructions
for detailed information on the installation of the
module.
-
+
-
+
-
+
EOL POWER
SUPERVISION
RELAY MODULE
A77-761B
4-WIRE SMOKE
DETECTORS
2000
OHM
EOLR
TO FIRE ZONE
TERMINALS
HEAT
DETECTOR
+
–
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST
333PRM-001-V0
333 PRM
7
6
5
4
3
-2
+1
8
JUMPER
P1
NC
MOMENTARY
RESET SWITCH
JUMPER P1 ON
333 MODULE
MUST BE IN
"B" POSITION
FOUR-WIRE DETECTOR CIRCUIT
CONTROL PANEL
746
Figure 3-12a: Wiring a 333PRM to the Control
WWW.DIYALARMFORUM.COM
WWW.DIYALARMFORUM.COM