Section 6: Fire Monitoring; Fire Zones; Standard Fire Operation; Auto Verify Fire - DSC PC1832 Reference Manual

PC1864/PC1832/PC1616 Subscribers units can be used
CAN
in Canada for ULC Fire Monitoring Installations (passive
communicators to a Signal Receiving Centre) when con-
nected to a ULC listed Fire Alarm Panel. The available
communication methods are: Dual Dialer (requires
PC5700 module), Dialer with Cellular Back-up (use Sky-
route or GS3055-I Modules), Internet/Intranet communica-
tor (use T-Link TL250/TL300 Module). The system has to
be installed in accordance with the requirements of ULC-
S561 Standard for Installation and Services for Fire Signal
ReceivingCentres and Systems.
This section explains all Fire monitoring zones that can be pro-
grammed on the PC1616/PC1832/PC1864 and PC5700 fire mod-
ule. Instructions on zone programming are located in the PC1616/
PC1832/PC1864 Installation Manual, see Partitions and Zones.
NOTE: 2-wire smoke detectors can only be connected to the dedi-
cated 2-wire smoke zone on the PC1616/PC1832/PC1864, PGM2
and Aux+ terminals.

6.1 Fire Zones

All zones can be programmed as Fire Monitoring zones. This
zone is always an end of line resistor type with normally open
alarm contacts from the alarm initiating device(s). Multiple devices
can be connected in parallel on a single zone.
The zone wiring is supervised by the control panel for:
• Short Circuit: Fire Alarm
• Open Circuit: loss of the end of line resistor; this will be
indicated as a Zone Trouble
• Ground Fault: resistance < 40kΩ to earth ground indicated
as a Ground Fault Trouble on PC5700 zone 7
Typical Fire Devices used on this zone type are:
• Heat Detectors – fixed temperature and/or rate-of-rise
• Fire alarm panel outputs such as Alarms and Troubles
• Manual pull stations
• 4-wire smoke detectors

Standard Fire Operation

When a Fire Monitoring zone goes into alarm, the panel will acti-
vate the alarm notification output(s)* and will immediately transmit
a reporting code to the central station, if programmed. The alarm
notification output(s) can be programmed to pulse—one second
on, one second off—or to follow another programmed alarm notifi-
cation pattern (see Section 5.3, 'Basic Programming', [005] Sys-
tem Times). If an open condition is present, the panel will
immediately display and communicate a Trouble condition. All
keypads will annunciate the Trouble by activating the Trouble light
and beeping twice every ten seconds. The keypads can be
silenced by pressing any key.
*For Residential Applications only.

Auto Verify Fire

All zones can be programmed as Auto Verify Fire zones. For
zones on the main panel or zone expanders, this zone is always
an end of line resistor type with Normally Open alarm contacts
from the alarm initiating device(s). Multiple devices can be con-
nected on a single zone.
The zone wiring is supervised by the control panel for:
• Short Circuit: Fire Alarm
• Open Circuit: loss of the end of line resistor; this will be
indicated as a Zone Trouble
• Ground Fault: resistance < 40kΩ to earth ground indicated
as a Common Ground Fault Trouble.
The Bell Time-out timer begins upon the first fire alarm. Each sub-

Section 6: Fire Monitoring

NOTE: This zone type is only for smoke detectors that can be
reset by the control panel. Do not mix contact type alarm-initiat-
ing devices on zones programmed for Auto Verify Fire. The follow-
ing device can be used:
NOTE: 4-wire smoke detectors powered from the AUX+ output
on the PC1616/PC1832/PC1864 main board

Four-Wire Smoke Detector Zones

All zones can be programmed for 4-wire smoke detectors. It is
always an end of line resistor type with normally open alarm con-
tacts from the fire alarm-initiating devices. Multiple contacts can
be connected in parallel on a single zone.
For commercial applications, zones used for 4-wire smoke detec-
tors can be programmed as Standard Fire. For residential appli-
cations, the zone can be programmed as Standard Fire.
Power for the 4-wire smoke detectors can be derived from the aux-
iliary (AUX+) output on the PC1616/PC1832/PC1864 main panel.
This detector may be connected to any PGM 1-4. The PGM must
be programmed as Sensor Reset (see Programming Worksheets).
PGM2 can either be programmed for a 2-wire smoke detector or a
4-wire smoke detector, but both detectors cannot be programmed
concurrently on PGM2. For a wiring diagram, see Appendix B-6
'Sensor Reset for 4-Wire Smoke Detectors'.

Two-Wire Smoke Detector Zones

PGM2 can be programmed for 2-wire smoke detectors. More
than one smoke detector can be connected in parallel, refer to the
Compatability Chart in this manual for details (see Appendix B,
diagram B.1). PGM2 must be programmed for 2-wire smoke sup-
port (PGM2 only) Option[4]. Refer to the PC1616/PC1832/
PC1864 Programming Worksheets, 'Programmable Output
Options'.

Fire Supervisory Zone

This zone is always an end of line resistor type with normally open
alarm contacts from the Fire Supervisory initiating devices. A
maximum of 20 Fire Supervisory devices can be connected in
parallel on a single zone. The zone wiring is supervised by the
control panel for:
• Short Circuit - Supervisory off-normal
• Open Circuit - loss of the end of line resistor; this will be
indicated as a Zone Trouble
A Fire Supervisory zone monitors fire critical systems to indicate
when those systems are in a condition that could prevent normal
operation. These most commonly monitored devices are sprinkler
gate valves to ensure they are not closed, which would prevent
water from flowing to the sprinklers.

6.2 Fire System Operation

Manual Signal Silence (Residential use only)

Once the panel is in alarm and the alarm notification appliances are
active, entering a valid user code will silence the alarm signals.
Silencing will not deactivate any output programmed as Fire
Strobe. Manual Silencing initiates a Trouble condition by turning
on the keypad Trouble LED and sounding the keypad buzzer. The
buzzer may be silenced by entering an access code.
Automatic Signal Silence/Bell Time-out (Residential use only)
Ref: Section[014] Option [8] Fire Bell Follows Time-out
Ref: Section[005] Bell Time-out (default 004 minutes)
The fire alarm notification appliances may be set to silence auto-
matically after a programmed time. The system is default pro-
grammed to silence the notification appliances four minutes after
the last initiated fire alarm. If the Fire Time-out option is disabled,
the notification appliance can only be silenced manually.
sequent alarm will restart the timer.
50