
Chapter 1: Introduction
ZP3-ECU Extinguishing Control Unit User Guide 3
Extinguishing Control Unit
The Ziton ZP3-ECU Extinguishing Control Unit, see Figure 2, is designed to
connect to a ZP fire detection system, and control a fire extinguishing system. It
interfaces to the fire detectors of a ZP fire detection system, and provides secure
"coincidence connection" control of the extinguishing system.
The self-contained unit has key switches for automatic or manual selection, as
well as lock-off for maintenance. Other controls are a manual extinguishant
release, an alarm silence push-button, extinguishant hold off button and
indicators for automatic, manual, locked-off, fault, fire, extinguishant discharged
and reset status.
Outputs are provided for extinguishant release valves or actuators, audible fire
alarm sounders, separate extinguishant release sounders, visual exit signs, door
closing and shutter release. Also provided are facilities for remote manual
extinguishant release, and remote operation and status functions.
Extensive monitoring is provided for many functions, including power supply,
fuses, and operation. Field wiring is monitored for extinguishant release
valves/actuators, fire sounder, extinguishant sounder and manual extinguishant
release units.
Optional monitoring is provided for low extinguishant pressure, extinguishant
release verification, and locked/unlocked entry door status of the protected area.
The extinguishing control unit is under the control of its ZP fire control panel. It
communicates with the fire panel every two seconds, and reports the status of all
functions. A fault signal is raised at the fire panel for any out-of-normal condition,
which exists at the extinguishing control unit. The fire panel indicates the type of
fault, and where applicable, reports the condition to a building management
system. Remote status of each extinguishing control unit -automatic, manual,
fault, locked-off, or extinguishant discharged can be displayed at the ZP fire
control panel without additional wiring.
Each extinguishing control unit operates one fire extinguishing system. Any
number of extinguishing control units may be used on a ZP fire detection system,
with each unit requiring two system addresses. The system is field programmable,
with functions such as detector cross-mapping, automatic extinguishant release
delay, selection of delay/no delay for manual extinguishant release, and output
relay control being fully configurable.