24
HELIX™ Manual
(P/N 26291)
Chapter 2: System Components
Rev A (February 2018)
HELIX™
PCU Fire Suppression System
2.13.2 Horn & Strobe Assembly, 120 VAC (P/N 21396)
A Horn & Strobe Assembly is available for use when audio and
visual indicators are required in the event of an alarm condition.
This device operates on standard 120 VAC and is installed using
an installer supplied standard 4” (101.6 mm) square by 2 1/8” (53.9
mm) deep back electrical box with conduit entrance. The device
may be installed indoors or outdoors. When using this device in
conjunction with the Amerex STRIKE ECS, a Relay Module is
required to control A/C power to the device.
An Amerex supplied
Relay Control Module (P/N 24695) must be used in conjunction
with any Horn & Strobe Assembly used to indicate a
STRIKE
Control Unit alarm condition.
Installation instructions are
provided with each Horn & Strobe Assembly.
2.14 Detection (LHD) Installation Accessories
The following accessories are available for use with the Amerex STRIKE ECS when installing a
Linear Heat Detector (LHD) as a detection device. When installing an LHD in a PCU it must be
secured using LHD Support Clips and Support Tubing or padded P
-
Clamps. These items may be
attached using installer supplied fasteners or Amerex supplied
rivet style or quick fasteners. When
penetrating a PCU wall with an LHD, an LHD Bulkhead Penetration Seal must be used.
2.14.1 LHD Support Clips (P/N 23524), Support Tubing (P/N 24539) & Padded P
-
Clamp (P/N
18720
-
R)
Amerex supplied LHD Support Clips and Support Tubing, or padded P
-
Clamps, must be used for
securing and supporting an LHD detection device throughout the PCU. These clips contain a 1/4” (6
mm) mounting hole used for attachment (See Figure 2.14.1a). In addition, the Support Tubing must
be used to secure and cushion the LHD in the Support Clip (See Figure 2.14.1b). As an alternative,
padded P
-
Clamps may be used (See Figure 2.14.1c). These part numbers are supplied in bags of
quantity 25 each. All dimensions are in inches [mm].
Figure 2.13.2
(P/N 18720)
(P/N 24539)
Figure 2.14.1b
Figure 2.14.1c
Figure 2.14.1a
(P/N 23524)
