Aritech 1X-X3, Installation Manual

Page: 13 / 88

Chapter 2: Installation
1X-X3 Installation Manual 7
Connections
WARNING: Electrocution hazard. To avoid personal injury or death from
electrocution, do not make any control panel or system connections while the
control panel is connected to the mains power supply.
Recommended cables
Recommended cables for optimal system performance are shown in the table
below.
Table 1: Recommended cables
Cable
Cable description Maximum cable length
Mains cable 3 x 1.5 mm
2
N/A
Zone cable (mixed zone) 12 to 26 AWG (0.13 to 3.31 mm²)
Twisted-pair (max. 40 Ω / 500 nF)
2 km
Zone cable (automatic or
manual zones)
12 to 26 AWG (0.13 to 3.31 mm²)
Twisted-pair (max. 55 Ω / 500 nF)
2 km
Note:
Other types of cable may be used subject to site-specific EMI conditions
and installation testing.
Use 20 mm cable glands to ensure clean and secure connections at the control
panel cabinet. All cables should be fed through the cable guides in the cabinet
housing to eliminate movement.
Connecting zones with initiating devices
Zone configuration
The control panel has three fire detection zone inputs, marked Z1, Z2, and Z3 on
the control panel PCB to define the extinguishing area.
By default, Z1 and Z2 cover the extinguishing area and are configured for
automatic detection of an extinguishing event. (Both zones must be in fire alarm
condition to determine an extinguishing event.) The default configuration for Z3
provides standard fire detection as a mixed zone (using automatic or manual fire
alarm detection).
Refer to “Extinguishing zones” on page 39 for instructions on changing the
extinguishing area configuration. The following options are available.
Option 1 — Z1. An alarm in Z1 initiates the extinguishing event. The control
panel provides standard fire detection for Z2 and Z3, both as mixed zones.
Option 2 — Z1 and Z2. This is the default configuration). Both Z1 and Z2 must
be in alarm to initiate an extinguishing event. Z3 provides standard fire detection
as a mixed zone.