Figure 15-2: Auxiliary Relay Used For Resetting 4-Wire Smoke Detectors - ADEMCO VISTA-32FB Installation And Setup Manual

VISTA-32FB Installation and Set-Up Guide
Trouble/Supervisory Activation
(3 61 = 0): Steady activation in response to any zone or system-related trouble condition or
to any fire supervisory condition. Remains activated until all fault conditions have been
corrected and the [User Code] + [OFF] has been entered.
4-Wire Smoke Detector Reset
(3 61 = 2): Momentary (6-second) activation at second entry of [User Code] + [OFF]
sequence, which interrupts power to 4-wire smoke detectors connected to hardwired zones
(zones 1-8) or to polling loop zones, allowing the detectors to be reset following an alarm.
Power to 4-wire smoke detectors should be wired to the auxiliary relay and to the Auxiliary
Power 1 output as shown in Figure 15-2.
Battery Saver
(3 61 = 3): When this function is selected, the auxiliary relay will normally be activated (i.e.,
N.O. and pole contacts will be connected, N.C. contact will be open) and will de-activate four
hours after the start of an AC power failure. Using this feature, noncritical loads (such as
supplementary keypads) that do not need to be supported for the full 24-hour battery backup
period can be disconnected from the auxiliary outputs, allowing a smaller-capacity battery to
be used. The relay re-activates within a few seconds after AC power restores.
15–2
AUXILIARY RELAY
N.O. 7
+
8
POLE
N.C. 9
Aux. Pwr 1
10
+
11
-
Keypad Prt 1 12
VISTA-100
CONTROL
PANEL
+
ZONE
TERMINALS
-
(15-27)

Figure 15-2: Auxiliary Relay Used for Resetting 4-Wire Smoke Detectors

4-WIRE SMOKE
DETECTORS
+
+
-
HEAT
DETECTOR
Four-Wire Detector Circuit
-
+
• •
EOL
POWER
SUPERVISION
RELAY
- MODULE
A77-716B
•
SHOWN POWERED.
RELAY OPENS WHEN
POWER IS LOST.
•
2000Ω
EOLR