SECTION 5 – INSTALLATION INSTRUCTIONS
UL EX3470 ULC EX3470
2014-SEP-01 REV. 11 PAGE 5-11
R-102 Restaurant Fire Suppression Manual
INSTALLING THE ACTUATION AND EXPELLENT GAS LINE
(Continued)
Expellant Gas Line From The Regulated Release Assembly
Install expellant gas line from the regulated release assembly
regulator in the enclosure by completing the following steps:
1. The regulated release assembly is shipped with a facto-
ry-installed regulator. The regulator has two 1/4 in. outlets,
one at the back and one at the bottom. The bottom outlet
connects the expellant gas hose to the agent tank which
is mounted inside the enclosure. The back outlet is sealed
with a 1/4 in. plug.
2. Connect expellant gas hose to the agent tank mounted
inside the enclosure.
TWO TANK, THREE TANK, AND MULTIPLE TANK
SYSTEMS:
If the expellant gas piping is required because an additional
tank-enclosure or tank-bracket assembly is being installed,
the plug installed in the back outlet must be removed. (See
Figure 5-6 for proper connections to the regulator.)
3. Pipe the 1/4 in. expellant gas line from the regulator back
outlet through one of the knockouts provided in the enclo-
sure.
The total length of the expellant gas line from the regulated
release assembly must not exceed 30 ft (9.1 m) when
using a “double-tank” nitrogen cartridge or a 101-30 CO
2
cartridge. See Figure 5-18.
EXPELLANT GAS LINE
MAXIMUM LENGTH – 30 FT (9.1 m),
MAXIMUM NO. OF FITTINGS – 9
REGULATED RELEASE
ASSEMBLY
FIGURE 5-18
000776
4. If an actuation gas line is connected to the regulated
release assembly along with an expellant gas line, the total
combined length of the gas lines must not exceed 30 ft
(9.1 m) when using a “double-tank” nitrogen cartridge or a
101-30 CO
2
cartridge. See Figure 5-17.
5. A combined total of nine fittings may be used in these lines,
eight 90° elbows and one tee. Two 45° elbows equal one
90° elbow.
Expellant Gas Line From The Regulated Actuator
Assembly
Install expellant gas piping from the regulated actuator assembly
regulator through the appropriate knockout in the enclosure by
completing the following steps:
1. The regulated actuator is shipped with a factory-installed
regulator. The regulator has two 1/4 in. outlets 135° from
each other. One outlet is sealed by a 1/4 in. plug and the
other contains the expellant gas hose for the agent tank
which will be mounted within the enclosure. Connect expel-
lant gas hose to the agent tank that is mounted inside the
enclosure.
2. Remove the 1/4 in. pipe plug from the regulator side outlet
and pipe the 1/4 in. expellant gas line from the regula-
tor through the knockout provided in the enclosure to a
tank-enclosure or tank-bracket assembly. A maximum of
one tank-enclosure or tank-bracket assembly is allowed per
regulated actuator assembly.
The maximum length of the expellant gas line from the
regulated actuator to the tank-bracket assembly must not
exceed 30 ft (9.1 m). See Figure 5-19.
3. A total of nine fittings may be used in these lines, eight 90°
elbows and one tee. Two 45° elbows equal one 90° elbow.
EXPELLANT GAS LINE
MAXIMUM LENGTH – 30 FT (9.1 m),
MAXIMUM NO. OF FITTINGS – 9
REGULATED
ACTUATOR
ASSEMBLY
FIGURE 5-19
000777
Summary of Contents for R-102
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