FireClass Prescient III - Internal Standby Batteries; Function Enable;Disable Switches; 3.12.1. Function Select Switch; 3.12.1.1. CONFIG I;S INPUTS

EQUIPMENT: FIRECLASS Prescient III WRITTEN BY: RKP
PUBLICATION: OMFCPRES3IN CHECKED BY: AP
ISSUE No. & DATE: 0 02/02/12
PAGE 12 of 43
3.11 Internal Standby Batteries
Terminals are provided to allow connection of one
set of internal standby batteries. The Charger
Circuit is monitored for the following:
 Battery or associated wiring disconnected.
 Battery fuse blown
 Low battery voltage (<15.7V ±0.4V)
 Battery and interconnection resistance is 0.35Ω
or higher.
3.12 Function Enable/Disable
Switches
Two sets of DIL switches and one jumper link are
available on the motherboard to allow the panel to
be configured for additional site-specific functions:
3.12.1. Function Select Switch
1
2 3 4
5
ON
CONFIG I/S INPUTS
PRE-DISCHARGE DELAY 5S
PRE-DISCHARGE DELAY 10S
SW1
7 8 9
10
11
126
PRE-DISCHARGE DELAY 20S
PRE-DISCHARGE DELAY 40S
SILENT ZONE TEST
BUZZER DISABLE
LATCHED FAULTS
INSTANT MANUAL RELEASE
BUZZER PULSES AT END OF DELAY
ZONES 1 & 2 SINGLE KNOCK
NO DISCHARGE PRESSURE SWITCH
SW2
1
2 3 4
5
ON
ACTUATOR S/C DISABLE
1 MIN
2 MIN
7 8 9
10
11
126
4 MIN
8 MIN
16 MIN
CLEAR ACTUATORS AFTER 1 MIN
SILENCE ALARMS BEFORE RESET
OUTPUT 1-AUTO, 2-MANUAL
CONFIG SLU
3K9 EOL
N/C GAS LOW I/P
RESET
INHIBIT
PERIOD
This consists of two sets of 12-way DIL switches,
providing the following options:
3.12.1.1. CONFIG I/S INPUTS
When in the ON position, enables zones 1, 2,
Aux zone and Manual Release input to be
individually configured for standard or
intrinsically safe monitoring. The circuits need to
be configured for I/S monitoring if Galvanic
Isolators or Zener Barriers are connected. I/S
zones will then be monitored for a 10k EOL
resistor and different monitoring limits due to the
I/S barrier/isolator series load. See section 4.2.2
for configuration details.
3.12.1.2. PRE-DISCHARGE DELAY (5S, 10S,
20S, 40S)
These four switches allow the Pre-discharge
delay timer to be configured from 0 to 60
seconds in 5-second increments. Any of the four
switches in the ON position adds to the delay
value, up to a maximum of 60 seconds.
Delay
Length
(Seconds)
SW1-2
(5S)
SW1-3
(10S)
SW1-4
(20S)
SW1-5
(40S)
0
OFF
OFF
OFF
OFF
5
ON
OFF
OFF
OFF
10
OFF
ON
OFF
OFF
15
ON
ON
OFF
OFF
20
OFF
OFF
ON
OFF
25
ON
OFF
ON
OFF
30
OFF
ON
ON
OFF
35
ON
ON
ON
OFF
40
OFF
OFF
OFF
ON
45
ON
OFF
OFF
ON
50
OFF
ON
OFF
ON
55
ON
ON
OFF
ON
60
N/A
N/A
ON
ON
3.12.1.3. SILENT ZONE TEST
Switch OFF:- A fire alarm on any zone in Test
Mode will operate the appropriate zonal fire
indicator and the general sounder circuits for
four seconds.
Switch ON:- A fire alarm on any zone in Test
Mode will operate the appropriate zonal fire
indicator but will NOT operate the general
sounder circuits.
3.12.1.4. BUZZER DISABLE
Switch OFF:- The internal buzzer operates for
any fire, fault or display button operation.
Switch ON:- The internal buzzer only operates
on operation of any display button.
Note: This is not compliant with EN54-2 or
EN12094-1. Provided for commissioning
purposes only.
3.12.1.5. LATCHED FAULTS
Switch OFF:- All fault indications are non-
latching and clear once the fault clears.
Switch ON:- All fault indications are latching and
require a manual reset via the FIRE RESET
and/or EXTINGUISHING SYSTYEM RESET
buttons.
3.12.1.6. INSTANT MANUAL RELEASE
Switch OFF:- Operation of Manual Release
starts the Pre-discharge delay timer.
Switch ON:- Operation of Manual Release
bypasses the Pre-discharge delay timer &
operates the actuator circuits immediately.