35
HELIX™ Manual
(P/N 26291)
Chapter 3: System Design
Rev A (February 2018)
HELIX™ PCU
Fire Suppression System
3.5 System Actuation Design
The variations of hazards often require that more than one Agent Cylinder and/or Nitrogen Cylinder
be used. All of the Amerex HELIX Fire Suppression System cylinders can be used in multiples and
in combination. The quantity of Agent Cylinders allowed depends on the type of control head that is
used, as specified in Table 3.5. Regardless, the following rules must be strictly observed:
•
The Agent Distribution Network for each individual Agent Cylinder must be installed completely
independent of all other
Agent Distribution Networks. Each agent distribution network must
comply with the hose limitations as specified in Section 3.4.
•
All Pneumatic Actuation Networks must meet the requirements of Section 3.5.2.
•
If a Pneumatic Actuation Network is used in a multiple Agent Cylinder application, the total hose
length in the network must not exceed 100 ft (30.4 meters). A Vent Check (P/N 10173
-
R) is
installed in only the last Control Head in the network.
The Amerex HELIX Fire Suppression System has two different options available for system
actuation including the Electric Control Head and the Pneumatic Control Head. The following
section explains how to design each of the options.
Control Head Used
Maximum # of Agent Cylinders Used
in a System
Reference
Electric (P/N 14032
-
R)
1 per STRIKE ECS actuation zone
Section 3.5.1
Pneumatic (P/N 10147
-
R)
8 per STRIKE ECS actuation zone
Section 3.5.2
Table 3.5
3.5
.1 Single or Dual Agent Cylinder Networks using Electric Control Heads (P/N 14032
-
R)
For multiple Agent Cylinder networks using Electric Control Heads (P/N 14032
-
R), a maximum of (2)
two Agent Cylinders may be used with a single STRIKE ECS Unit. Each Linear Actuator (P/N
20500
-
R) in each Electric Control Head will be connected to individual actuation circuits of the
STRIKE Unit (See
Section 4.8.2).
(2) ELECTRIC CONTROL
HEAD (P/N 14032
-
R)
(2) LINEAR ACTUATOR
(P/N 20500
-
R)
Figure 3.5.1
TO
STRIKE
TO STRIKE
