FireClass Precept EN Panel - Typical wiring schematic - 16 Zone; Figure 7 - Typical Wiring Diagram

EQUIPMENT: FIRECLASS PRECEPT EN
PUBLICATION: FIRECLASS PREC EN INST
ISSUE No. & DATE: 3 13/09/18
PAGE 8 of 30
6. Typical wiring schematic – 16 Zone
Figure 7 – Typical Wiring Diagram
Zone O/Ps
1 2 3 4
Zone Circuits Zone Circuits
Alarm Circuits Aux DC Inputs Outputs
A B
Lower terminal tier
Upper terminal tier
Lower terminal tier
Upper terminal tier
Fault RoutingAux DC Fire Routing Fire Protection
N/C
RST
Scn
Repeater
BActEvacDisCl/CRSTEvacSil
0V
24V4 -4 +3 +2 +1 + 3 -2 -1 -8 -8 +7 -6 -5 -4 -3 -2 -1 -1 + 2 + 3 + 4 + 5 + 6 + 7 +
RST
N/OPO/-PC/+O/-PC/+
C/-PO/+
0V
24V9 + 10 + 11 + 12 + 13 + 14 + 15 + 16 + 16 -9 - 10 - 11 - 12 - 13 - 14 - 15 -
+
-
+
-
+
-
+
22uF capacitor end-of-line device
-observe polarity
Manual call point
with 680R resistor
Detector base with
Schottky Diode
1 2
1A 2A
Typical Zone Wiring
3K9 resistor
end-of-line device
- -
+ +
- -
+ +
Typical Alarm Circuit Wiring
Typical Input Circuit Wiring
for Remote Silence, Evac, Reset &
Class Change,
2k2 0.5W
resistor
Typical remote
output wiring
Repeater Wiring - see
Figure 9 - Repeater
connection diagram
Connect to
Aux DC 24V
24V DC
relay
Typical zonal
output wiring
Field relay spec:
Coil resistance - 2.6K to 4.5K Ohms
Voltage 24V DC Nom
[min 18V, max 30V]
Fitted with suppression diode as shown.
Relay local to fire
routing equipment
equipment
Relay local to fault
routing equipment
equipment
Fire and Fault Routing
output wiring shown for the
monitored/powered
configuration
For Fire Routing and Fire Protection O/Ps: Quiescent: 5V DC Active [fire]: 24V nom]
Fire Routing, Fault Routing & Fire Protection O/P configuration - Output specification:
When configured as monitored/powered outputs:
For Fire Routing and Fire Protection O/Ps: Volt free relay contacts shown in quiescent [de-energised] condition.
When configured as volt-free changeover relays :
-ve
Terminal identification
notes:
Cl/C = Class Change. B Act = Buzzer Active
RST = Reset
[Normally open switch contacts]
For Fault Routing O/P: Quiescent: 24V DC [nom] Active [fault]: 5V Connections: Observe correct polarity. [+ = Positive, - = Negative]
For Fault Output: Volt free relay contacts shown in healthy [energised] condition. Connections: Connect to normally open or normally closed contact as required.[P= Pole, C= Closed, O = Open] Applied voltage must not exceed 30V DC.