18
HELIX™ Manual
(P/N 26291)
Chapter 2: System Components
Rev A (February 2018)
HELIX™
PCU Fire Suppression System
Figure 2.7.2
15
6
5
10
17
7
3
2
14
8
11
1
16
9
STRIKE CONTROL
UNIT
12
13
4
2.7.2
STRIKE
Control
Unit Indicators & Features
STRIKE
Control
Unit Indicators/Features
1
System Normal LED
10
Primary Battery Connection
2
System Alarm
-
Actuation Zone 1 LED
11
Secondary Battery Connection
3
System Alarm
-
Actuation Zone 2 LED
12
Secondary Battery
4
Service System (Fault) LED
13
Primary Battery
5
Alarm Silence LED
14
Computer Interface Port
6
Battery Fault LED
Alarm Buzzer Connection
15
7
System Reset Button
Terminal Board 1 (TB1): Detection, Release, Manual Pull &
Pressure Switch Circuits
16
8
Alarm Silence Button
9
Push To Test Button (Amerex logo)
17
Terminal Board 2 (TB2): Aux. FACP & Alarm Outputs
Table 2.7.2a
Control Unit Features/Specs
Notes
Power Input
Internal Lithium Batteries (Primary and Secondary)
(2) Detection Circuits, Class B
Terminated with 470kΩ End of Line Device (EOL)
(1) Manual Pull Circuit, Class B
Terminated with 470kΩ End of Line Device (EOL)
(2) Actuation Circuits
Can be mapped to individual or both detection circuits
(1) Pressure Switch Circuit
Terminated to NC Pressure Switch (closed under pressure) supplied with Amerex
HELIX Fire Suppression System
(1) PC Interface Circuit
Used for STRIKE Control Unit programming, Monitor Mode, or Event Log
Auxiliary FACP Interface
Outputs with programmable
delay (Common)
Alarm (NO), Fault (NC) & COM contacts; FACP EOL resistor inputs
NO rated for 1A @ 30 VDC; NC rated for 0.5A @ 30 VDC (Power Factor 1.0)
Alarm: 0 second delay (default); Programmable delay 0 – 30 seconds
Fault: 5 second delay (default); Programmable delay 5 – 30 seconds
(3) Alarm Outputs with
programmable delay (Common)
For use with Relay Module (P/N 24695):
(1) Output with NC, COM contacts for Gas Valve operation
(2) Outputs with NO, NC, & COM contacts for optional device operation
NO rated for 1A @ 30 VDC; NC rated for 0.5A @ 30 VDC (Power Factor 1.0)
0 second delay (default); Programmable delay 0 – 30 seconds
Weight
4.12 lb (1.87 kg)
Table 2.7.2b