49
HELIX™ Manual
(P/N 26291)
Chapter 4: System Installation
Rev A (February 2018)
HELIX™ PCU
Fire Suppression System
4.2.1 Discharge Fitting Kit
The Discharge Fitting Kit (P/N 10199
-
R) is
used to connect the Agent Distribution Network
to the Agent Cylinder. Remove the Anti
-
Recoil
Plate (P/N 10646) from the Agent Cylinder
valve and attach the Discharge Fitting Kit in its
place using the same (2) 5/16” bolts and nuts.
Use medium grade thread locking compound
and torque to 10 ft
-
lbs. Connect the threaded
end of the Discharge Fitting Kit to the Agent
Distribution Network.
4.2.2 Distributor Block
When using an Agent Distribution Network that
requires a Distributor Block, the Distributor Block
can be bolted to the PCU or welded to the
equipment. Consult equipment manufacturer
and property owner prior to modification of the
equipment.
4.2.3 Nozzle Placement & Mounting
Nozzles must be aimed with 45° fittings. Use PTFE
thread tape for all connections. Each defined filter bank or
hazard must have a minimum of one nozzle for protection.
If a hazard is too large for one nozzle, the hazard must be
divided into sections with a nozzle protecting each
section. Carefully aim multiple nozzles at the hazard area
to ensure coverage.
Nozzles must be aimed to screen
the front of the filter modules with the nozzle slot in
the vertical orientation.
Figure 4.2.2
DISTRIBUTOR
BLOCK P/N 10178
-
R)
(4) 1/4”
-
20 GRADE 5
FASTENERS
AGENT DISTRIBUTION
NETWORK
(2) 5/16”
-
18 BOLTS
AND NUTS
DISCHARGE FITTING KIT
(P/N 10199
-
R)
AGENT CYLINDER VALVE
Figure 4.2.1
Figure 4.2.3a
4.2 Agent Distribution Network Installation
Install the Agent Distribution Network using the guidelines defined in Section 3.4 and the following
Sections.
45º ELBOW
CLOSE NIPPLE
1/2” NPT QUIK SEAL
(P/N 14204)
NOZZLE
AGENT
DISTRIBUTION
NETWORK
NOZZLE SLOT
ORIENTED
VERTICALLY
(PCU)
Figure 4.2.3b
