26
HELIX™ Manual
(P/N 26291)
Chapter 2: System Components
Rev A (February 2018)
HELIX™
PCU Fire Suppression System
2.15 Function Testing Devices
Test devices for performing function testing during initial commissioning or during required
maintenance are available. These devices include LHD Test Leads for testing an LHD detection
circuit and Alarm Modules for testing actuation circuits. Reference the function testing section (See
Section 4.11) and maintenance section (See Section 5.3) for instructions on how and when to use
these devices.
2.15.1 LHD Test Leads (P/N 24527)
LHD Test Leads provide a means of functionally testing detection circuit(s) that use LHD detection
devices. These sacrificial leads are inserted in the detection
circuit in place of the actual LHD
(already installed) and can be subjected to set point temperatures to verify that the STRIKE Control
Unit responds properly. These one time use devices can then be removed from the circuit
and
properly disposed. LHD Test Leads are 12” long and supplied in bags of quantity 10 each. All
dimensions are in inches [mm].
Figure 2.15.1
Figure 2.15.2
LED INDICATOR
PUSH TO RESET BUTTON
YELLOW COLOR CODED
2.15.2 Alarm Module (P/N 23651)
Alarm Modules provide a means of functionally testing actuation circuits. These devices are
installed at the end of the actuation circuit (in place of a Linear Actuator) when performing function
testing or required maintenance. These devices contain an LED
indicator that illuminates
when the
actuation circuit is activated. These devices can be manually reset afterwards by pressing the ‘Push
to Reset’ button. Color coding (yellow) can be found on the cable end.
