Figure 3-10: 2-Wire Smoke Detector On Zone 1 - Honeywell ADEMCO VISTA-40 Installation And Setup Manual

Using 2-Wire Smoke Detectors on Zone 1
Zone 1 can support up to 16 2-wire smoke detectors.
The alarm current on zone 1 supports only one
smoke detector in the alarmed state.
Compatible 2-Wire Smoke Detectors
DETECTOR TYPE
Photoelectric, direct-wire
Photoelectric w/heat sensor, direct-wire
Photoelectric w/B401B base
Photoelectric w/heat sensor & B401B
Ionization, direct-wire
Ionization w/B401B base
Photoelectric duct detect (DH400 base)
Photoelectric duct detect (DH400 base)
Ionization duct detector (DH400 base)
Ionization, direct-wire
Ionization w/B110LP base
Photoelectric, direct-wire
Photoelectric w/heat sensor, direct-wire
Photoelectric w/B110LP base
These smoke detectors are UL Listed for use
U L
with the VISTA-40 and are the only 2-wire
smoke detectors that may be used.
Wiring 2-Wire Smoke Detectors to Zone 1
2K EOL resistors must be used on fire zones
and must be connected across the loop wires
of each zone at the last detector.
To wire 2-wire smoke detectors to zone 1, perform the
following steps:
Step Action
1 Select up to 16 2-wire smoke detectors from
the list of compatible detectors.
2 Connect 2-wire smoke detectors across zone 1
terminals (10 and 11) as shown in Figure 3-
10. Observe proper polarity when connecting
the detectors.
3 Connect the EOL resistor at the last detector
in the loop across the zone 1 terminals. The
EOL resistor must be connected across
the loop wires at the last detector.
DEVICE MODEL #
System Sensor 2400
System Sensor 2400TH
System Sensor 2451
System Sensor 2451TH
System Sensor 1400
System Sensor 1451
System Sensor 2451
System Sensor 2451
System Sensor 1451DH
System Sensor 1100
System Sensor 1151
System Sensor 2100
System Sensor 2100T
System Sensor 2151
Section 3 - Installing the Control
(+)
(-)

Figure 3-10: 2-Wire Smoke Detector on Zone 1

Using 4-Wire Smoke Detectors on Zones 1-8
You may use as many 4-wire smoke detectors as can be
powered from the panel's Auxiliary Power output
without exceeding the output's rating (750mA).
Auxiliary power to 4-wire smoke detectors is
not automatically reset after an alarm, and
therefore must be momentarily interrupted
using a 4204 Relay Module.
Compatible 4-Wire Smoke Detectors
Use any UL Listed 4-wire smoke detector that is rated
for 10-14VDC operation and that has alarm reset time
not exceeding 6 seconds. Some compatible 4-wire
smoke detectors are listed below.
Detector Type
Photoelectric, direct wire
Photoelectric w/heat
sensor, direct wire
Ionization, direct wire
Wiring 4-Wire Smoke Detectors
Power to 4-wire smoke detectors must be
U L
supervised with an EOL device (use a System
Sensor A77-716B EOL relay module
connected as shown in Figure 3-11).
To wire 4-wire smoke detectors to zones 1-8, perform
the following steps:
Step Action
1 Select 4-wire smoke detectors (see list of
compatible detectors shown previously in
this section).
2 Connect detectors (including heat detectors,
if used) across terminals of the zone selected.
All detectors must be wired in parallel. See
Figure 3-11.
3 Connect the EOLR at the last detector in the
loop across the zone's terminals. You must
connect the EOLR across the loop wires
at the last detector.
2-WIRE SMOKE
DETECTOR
Detector Model #
System Sensor 2412
System Sensor 2412TH
System Sensor 1412
(+)
10
11 (-)
3-7