SAMPLE APPLICATIONS
Refer to Section XI (Typical Applications) for examples of
some typical applications. By reviewing these examples, it
may help answer some questions concerning the total
design process.
ACTUATION REQUIREMENTS
Three types of actuation are available for the INERGEN
system: manual, pneumatic, and electric.
Manual Actuation
Manual actuation can be used with or without automatic
detection. When no detection is required, based on accep-
tance by the authority having jurisdiction, the lever actuator
can be mounted on top of the INERGEN cylinder valve.The
manual lever release actuator provides a manual means of
agent cylinder actuation by direct manual actuation of its
pull lever or cable actuation when used in conjunction with
a remote manual pull station. One pilot cylinder valve is
required on multiple cylinder systems. The pilot valve is the
only one that requires a manual actuator. On two or more
cylinder systems, the remaining cylinders are actuated by
the pressure generated within the distribution manifold. The
maximum length of actuator cable which may be used in
the remote line is 125 ft. (38 m). The maximum number of
corner pulley elbows is 10.
Pneumatic Actuation
Pneumatic actuation is accomplished by supplying pres-
sure to the pilot port on the INERGEN cylinder valve. The
pressure is supplied from an LT-30-R nitrogen cartridge
located in the ANSUL AUTOMAN II-C release. The car-
tridge pressure pneumatically opens the cylinder valve.
One pilot valve is required in single or multiple cylinder sys-
tems. The rest of the cylinders will be actuated from the
pressure of the pilot cylinder.The maximum length of 1/4 in.
Schedule 40 pipe is 100 ft. (30.5 m). If it is necessary to
have an actuation pipe run which exceeds the maximum
allowable 1/4 in. pipe requirements, 1/4 in. O.D. stainless
steel tubing with a wall thickness of 0.065 can be used for
the actuation line. When this size tubing is used, a maxi-
mum of 300 ft. (91.4 m), with no reductions for elbows or
tees, is allowed. See NFPA 2001, Paragraph
2-3.4.2 for information on pneumatic control equipment
Electric Actuation
CV-98 Valve – One or two HF electric actuators, Part No.
73327, can be used on a single release circuit. When using
only one electric actuator, an in-line resistor, Part No.
73606, must always be used.
Normal system design requires that only one pilot valve
contains an electric actuator. On multiple cylinder systems,
the additional cylinders are actuated by the pressure gener-
ated within the distribution manifold.
In auxiliary or override applications, a lever actuator can be
installed on top of the CV-98 valve or on top of HF electric
actuator.
Multiple Manifold Actuator
A maximum of 40 cylinders can be installed on a single
manifold and actuated from a single actuated main pilot
valve. When more than 40 cylinders are required, up to 12
additional pilot valves (12 additional manifolds each having
a maximum of 40 cylinders) can be pneumatically actuated
from the “pilot” manifold. See Installation Section VI for
detailed piping requirements.
“Secondary” Pilot Cylinders
On some very large systems, because of the manifold size,
“secondary” pilot valves are required to be actuated from
the single “main” pilot valve in order to produce enough
manifold pressure to operate the remaining cylinders on the
manifold. See “Pilot Cylinder Requirement Table” in Step
No. 28, Page 5-10, for detailed secondary pilot cylinder
information.
SECTION V
UL EX-4510 12-1-01 Page 5-14
Design
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