EP203 AUTOMATIC EXTINGUISHER PANEL
Approved Document No. DFU0002032 Rev 4 • EP203 AUTOMATIC EXTINGUISHER PANEL INSTALLATION MANUAL • Page 15 of 45
•
1s t S ta ge A la r m : Relay operates on activation of a zone that is part of the
extinguisher release circuitry, or when the panel mounted (or remote manual)
release pushbutton is pressed. The relay remains activated until the panel is
reset.
•
2nd S ta ge A la r m : Relay operates when the EP203 panel has entered the
activated condition, i.e. the extinguisher release timer has started. The relay
remains activated until the panel is reset.
•
Faul t : This relay output is normally energised. When a fault occurs, the output
turns off to ensure failsafe operation even in the event of total power loss.
•
Ex t ract : Relay operates when an Access Level 2 user selects Start Extract Fan
after the flooding time has elapsed (without a reset). This allows a flooded area
to be vented of extinguishant.
Note : The Extract Option is enabled/disabled in the Commissioning menu at
Access Level 3.
Remote Control Wiring
If required, some functions of the EP203 can be remotely controlled. The operating
inputs of the remote equipment is restricted to an Access Level 2 user. The wiring for
each input should be connected to the relevant 5mm connector block on the Main
Control PCB and their screens terminated at the EP203 panel’s base earth post.
The remote input abbreviated functions at the Main Control PCB are listed below:
•
+ / – : Remote supply
•
S I L : Silence Alarm
•
AL : Sound Alarm
•
F LT: Fault – Generates a general fault and operates the fault relay.
•
RST : Reset – Resets the system to normal mode.
Figure 7 : Typical Remote Control Input Wiring
www.acornfiresecurity.com
www.acornfiresecurity.com
