Section 7: Fire Monitoring Zone Types; Partitions And Fire System Configuration; Fire Zones; Auto Verify Fire - DSC PC5020 Power864 Installation Manual

Section 7: Fire Monitoring Zone Types

This section explains all Fire monitoring zones that can be programmed on the PC5020CF and PC5700 fire module. Fire moni-
toring zone programming is the same as burglary zone programming. Instructions on zone programming are located in the
PC5020 Installation Manual, see Partitions and Zones.
NOTE: 2-wire smoke detectors can only be connected to the dedicated 2-wire smoke zone on the PC5020CF, PGM2 and Aux+
terminals.

7.1 Partitions and Fire System Configuration

A fire system within a single building must not be parti-
tioned in such a way that audible or visual alarm notifica-
tion appliances would operate in one partition and not
another.
Even though the system can be partitioned for security
control purposes, any fire zone on any partition in the
building must activate all fire monitoring zones in all sys-
tem partitions.
The PC5020CF provides two methods for achieving these
results.
Fire Configuration 1
• Assign all fire monitoring zones to one partition.
• Assign at least one keypad to the same partition as the
fire monitoring zones.
• Other types of zones can also be assigned to this parti-
tion without affecting the fire operation as described
below.
Operation
The waterflow and any fire monitoring zones on the
PC5700 module will show, in the auto-scroll mode, on all
partition and global keypads. If a zone on the PC5700 is in
alarm, then fire silence and reset can be done from any
partition keypad.
If the alarm is from a partition zone then fire alarm silence
and reset can only be done directly on the fire partition
keypad(s). To silence from other partition keypads or a
global keypad requires that the keypad be loaned to the
fire partition.
Fire Configuration 2 (Recommended)
• Assign ALL fire zones to ALL active partitions in the
system. Do not program fire zones as 'silent'.
• One or more keypads can be located on any partition.
Operation
On alarm, the auto-scroll display will show on all parti-
tion keypads.
Fire alarm silence and fire system reset may be done
directly on any partition keypad. To silence from a global
keypad requires that the global keypad be loaned to one
of the partitions.
NOTE: Assign command output 2 (sensor reset) to all
partitions.

7.2 Fire Zones

All zones can be programmed as Fire Monitoring zones.
This zone is always an end of line resistor type with nor-
mally 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 indi-
cated 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 activate the alarm notification output(s) and will
immediately transmit a reporting code to the central sta-
tion, if programmed. The alarm notification output(s) can
be programmed to pulse—one second on, one second
off—or to follow another programmed alarm notification
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 condi-
tion. 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.

7.3 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 connected 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 indi-
cated as a Common Ground Fault Trouble.
NOTE: This zone type is only for smoke detectors that
can be reset by the control panel. Do not mix contact
type alarm-initiating devices on zones programmed for
Auto Verify Fire. The following device can be used:
• 4-wire smoke detectors powered from the AUX+
output on the PC5020CF main board

7.4 Waterflow Zone

This type is a Contact Input Fire Zone and is always an
end of line resistor type with normally open alarm con-
tacts from the initiating device(s) when used on the
PC5020CF (zones 1-8) or zone expander on-board zones.
A maximum of five waterflow contacts can be connected
in parallel on a single waterflow zone.
The zone wiring is supervised by the control panel for:
• Short Circuit: Fire Alarm
• Open Circuit: loss of the end of line resistor and will be
indicated as a Zone Trouble
• Ground Fault: resistance < 40kΩ to earth ground indi-
cated as a Common Ground Fault Trouble.
Typical alarm initiating devices used on this zone type are
waterflow switches for fire suppression sprinklers
NOTE: For this type of zone, only waterflow alarm-ini-
tiating devices can be connected. A maximum of five
(5) waterflow alarm-initiating devices is allowed per
zone (Ref: NFPA 72 / 5-6 and 3.8.5).
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