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 up to 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.
Figure 9a. 4-Wire Smoke Detector Using Relay for Power Reset
Figure 9b. 4-Wire Smoke Detector Using Output 17 for Power Reset
1. Connect each module to the control’s keypad terminals and set the device addresses.
See the Table of Device Addresses to select an appropriate address for each module.
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.
Use appropriate end-of-line resistors (2k ohms) at the end of loops connected to the
4219/4229 modules.
Expansion zones have normal response time (300–500msec), except zone connected
to each module’s loop “A,” which can be set for fast response (10–15msec).
3. If using relays with the 4229, connect the desired field wiring to the unit's relay contact
terminals.
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