Basic Hard-Wired Zones 1-8; Installing The Hard-Wired Zones; Common Characteristics For Zones 1-8; Wiring 2-Wire Smoke Detectors To Zone 1 - ADEMCO Vista-20HW 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 smokekombustion detectors, and 2-wire
latching type glass break detectors. Also included is a procedure for programming the hard-wired zones.
Installing the Hard-Wwed Zones
Common Characteristics for Zones 1-S
Can be assigned to any partition
EOLR supervised zones supporting both open circuit and closed circuit
devices
As many 4-wire smoke detectors as can be powered from Aux Power on the
control (zones 2-7)
Programmable for 10, 350, or 700 msec response
350 msec (default) should be used for most standard contacts. For
vibration type contacts, 10 msec is more suitable
Whing Burglary and Panic Devices To Zones 1-S
1.
Comect sensors/contacts to the hard-wired zone terminals (terminals 8
through 20). See the Summary of Connections chagrdm .
2. Connect closed circuit devices in series in the high (+) side the loop. The
EOL resistor must be connected in series with the devices, following the
last device. See the Summary of Comections diagram.
3. Connect open circuit devices in parallel across the loop. The 2,000 ohm
EOLR must be connected across the loop wires at the last device.
High Resistan ce Supervision on Hard-WA Zones 2-S
" Special supervision in the control senses high resistance on hard-wired
zone loops 2-8, causing a warning "CHECK" display with the tiected zone
number to occur when the system is in the disarmed state. The system
cannot be armed when this display is present. If the system is in the
armed state when the high resistance condition occurs, no display will take
place until the system is disarmed.
Wfig 2-Wti Smoke Detectors To Zone 1
1. Connect 2-wire smoke detectors across zone 1 terminals 8 (+) and 9 (-).
Observe proper polarity when connecting the detectors (see Figure 7).
2. If an EOL resistor is presently connected across zone 1 terminals, remove
it. The EOL resistor must be connected across the loop wires at the
last detector.
3. See "Programming Hard-Wired Zones" later in this section for a detailed
programming procedure.
Teri&' Operation of
The control panel will "verify" any alarm by resetting the smoke detectors
2-Wire Smoke Detectors after the first alarm trigger, and then waiting 90 seconds for a second alarm
in Zone 1
trigger. If the smoke detector or thermostat does not trigger again, the
control will disregard the first trigger, and no alarm signal will occur. This
feature eliminates false alarms due to electrical or physical transients. The
ver@ feature is available on zone 1 only.
This feature is available only on units that report to the downloader
as Rev 4 or higher.
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