Basic Hard-Wired Zones; Installing The Hard-Wired Zones; Wiring Burglary And Panic Devices; Wiring 2-Wire Smoke Detectors - ADEMCO Vista-20 Installation Instructions Manual

This section provides general information for the hard-wired zones in the system, plus
specific instructions for installing 2-wire smoke detectors, 4-wire smoke/combustion
detectors, and 2-wire latching type glass break detectors.Also included is a procedure for
programming and chec~ out the hard-wired zones.
~~ the
Hard-Wined Zones
Colnmon Characierietics
for Zonee 1-8
Can be assignedto any partition
EOLR supervised zones supporting both open circuit and closed circuit
devices
As many 4-wire smokedetectorsas can be poweredborn AU Power on the
control (zones2-7)
Programmable for 10,350, or 700 msecresponse
350 msec (default) should be used for most standard contacts. For
vibration type contacts,10 msecis more suitable
W*g
Burglary and Pmic Devices To Zones 1-S
1. Connectsensorskontacts to the hard-wired zone terminals (8 through 20).
Seethe SummaIY of Connectionsdiagram.
2. Connect closedcircuit devicesin series in the high (+) side the loop. The
EOL resistor must be connectedin serieswith the devices,following the
last device.See the Summary of Connectionsdiagram.
3. Connect open circuit devices in parallel across the loop. The 2,000 ohm
EOLR must be connectedacrossthe loop wires at thelastdevice.
High Redetan
Ce
Supervision on
Hard-w*
Zonee
2-s
" Special supervision in the control senses high resistance on hard-wired
zone loops2-8, causing a warning "CHECK" display with the all'ected zone
number to occur when the system is in the disarmed state. The system
cannot be armed when this disp?ay is present.
If the systemis in the armed
state when the high resistanceconditionoccurs,no display will take place
until the systemis disarmed.
W- 2-W- Smoke Detectore To Zone 1
1. Connect 2-wire smoke detectors
across
zone 1 terminals
8 (+)
and
9 (–).
Observe proper polarily when connectingthe detectors.
2. If an EOL resistor is presently connectedacrosszone 1 terminals, remove
it. The EOL resistor must be connected across the loop wires at the
last detector.
3. See
'Programming Hard-Wired Zones" in this section for programming
procedure.
Werify" Operation of
The
control panel will "ver@" any alarm by resetting the smoke detectors
2-Wire
Smoke Detectors after the first alarm trigger, and then waiting 90 secondsfor a secondalarm
in Zone 1
trigger. If the smoke detectoror thermostatdoesnot trigger again, the control
wilI disregard the first trigger, and no alaRu signal will occur. This feature
eliminates false alarms due to electricalor physical transients.
Note for unite that report as Rev 3 or earlier to the downloade~
With
these units, it is possible for a lxartsientcondition to causean alarm due to
the fact that they will not wait for a secondtrigger, as indicated above.
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