ADEMCO VISTA-20HWse Instrukcja Naprawy Pobierz pdf (Strona 16)

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Section 4. BASIC HARD-WIRED ZONES 1–8

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.

Installing the Hard-Wired Zones

Common Characteristics for Zones 1–8

• 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

Wiring Burglary and Panic Devices To Zones 1–8

1. Connect sensors/contacts to the hard-wired zone terminals (8 through 20).

See the Summary of Connections diagram .

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 Connections 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.

If the EOLR is not at the end of the loop, the zone will not be properly

supervised, and the system may not respond to an open circuit on the zone.

High Resistance Supervision on Hard-Wired Zones 2–8

• Special supervision in the control senses high resistance on hard-wired zone

loops 2–8, causing a warning “CHECK” display with the affected 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.

Wiring 2-Wire 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.

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.

In UL installations, only zone 1 may be used as a Fire zone. In addition, an

Ademco Model 610–7 must be used as an End-of -Line resistor at the last

detector.

The alarm current provided by zone 1 will support only one smoke detector in

the alarmed state.

ÒVerifyÓ Operation of

2-Wire Smoke Detectors

in Zone 1

The control panel will “verify” any alarm by resetting the smoke detectors after

the first alarm trigger, and then waiting 90 seconds for a second alarm 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.

This feature is available only on units that report to the downloader as Rev

4 or higher.

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 83 84

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