Mounting and wiring the control 2-7 – Honeywell VISTA-20P User Manual

Page 13

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Smoke Detector Notes

•••• Fire Verification (zone type 16): The control panel will “verify” a fire 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.

SIA Installations: If using fire verification on zones other than zone 1, UL Fire Alarm

Listed relay accessories must be used to reset power as described in the Power Reset
paragraph above.

• The zone 1 alarm current supports only one smoke detector in the alarmed state.

•••• Clean Me Option: If enabled (field *174 = 1; *56 zone programming, response time

prompt = 3), certain ESL smoke detectors send “clean me” reports as appropriate. If
used, the maximum number of detectors is reduced to 10 (not standard 16). Refer to the
ESL documentation included with the smoke detector for information regarding
compatibility with the clean-me option.

• Do not use 4-wire smoke detectors on zone 1.

+

+

2000

OHMS

EOLR

HEAT

DETECTOR

RED

EOL
POWER
SUPERVISION
RELAY MODULE
A77-716B.
USE N.O.
CONTACT,
WHICH CLOSES
WHEN POWER
IS APPLIED.

VIOLET

AUX PWR

OUTPUT

TERMINALS

5

4

_

_

+

_

BLK

_

+

4_wiresmk-007-V0

TO ZONE TERM. ( )

TO ZONE TERM. ( )

RELAY

CONTACT OPENS

MOMENTARILY UPON

FIRE ALARM RESET

PROGRAM

RELAY

AS ZONE

TYPE 54

(FIRE ZONE

RESET)

4-WIRE SMOKE

OR COMBUSTION

DETECTOR

N.C.

N.O.

Figure 9a. 4-Wire Smoke Detector Using Relay for Power Reset

+

2000

OHMS

EOLR

HEAT

DETECTOR

RED

VIOLET

AUX PWR

5

_

+

_

BLK

_

+

4_wiresmk-008-V0

4-WIRE SMOKE

OR COMBUSTION

DETECTOR

( )

( )

+

_

TO ZONE TERM. ( )

TO ZONE TERM. ( )

TO OUTPUT 17

PROGRAM OUTPUT 17

FOR "OUT NORM

LOW" = YES IN 79 MENU

MODE AND AS ZONE

TYPE 54 IN

80 MENU MODE

EOL
POWER
SUPERVISION
RELAY MODULE
A77-716B.
USE N.O.
CONTACT,
WHICH CLOSES
WHEN POWER
IS APPLIED.

N.O.

Figure 9b. 4-Wire Smoke Detector Using Output 17 for Power Reset

4219/4229 Expansion
Zones


1. Connect each module to the control’s keypad terminals and set the device addresses.

• VISTA-20P: Up to 40 expansion zones using up to 5 Zone Exp. Modules.

• VISTA-15P: Up to 16 expansion zones using up to 2 Zone Exp. Modules.

2. Connect sensors to the module’s loops. See Figure 8 on the following page.

• Use 1000 ohm end-of-line resistors at the end of loops connected to the 4219/4229

modules. (EOLRs used on the control terminals are 2000 ohms.)

• Expansion zones have normal response time (300–500 msec), except zone connected

to each module’s loop “A,” which can be set for fast response (10–15 msec).

3. If using relays with the 4229, connect the desired field wiring to the unit's relay contact

terminals.

Mounting and Wiring the Control

2-7

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