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Amerex HELIX Manual

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P/N 26291
POLLUTION CONTROL UNIT (PCU) FIRE SUPPRESSION SYSTEM
DESIGN, INSTALLATION, MAINTENANCE & RECHARGE MANUAL
AMEREX CORPORATION
P.O. Box 81
7595 Gadsden Highway
Trussville, AL 35173
www.amerex-fire.com
Customer Service:
Phone: (205) 655-3271
customer.service@amerex-fire.com
REV A (February 2018)
Technical Service:
Phone: (205) 655-3271
tech.services@amerex-fire.com

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  • Page 1 P/N 26291 REV A (February 2018) POLLUTION CONTROL UNIT (PCU) FIRE SUPPRESSION SYSTEM DESIGN, INSTALLATION, MAINTENANCE & RECHARGE MANUAL AMEREX CORPORATION P.O. Box 81 Customer Service: 7595 Gadsden Highway Technical Service: Phone: (205) 655-3271 Phone: (205) 655-3271 Trussville, AL 35173 customer.service@amerex-fire.com...
  • Page 2 4.8.5 Revised Figure 4.8.5a to include “*” Note Revised Tables 4.9a/b to include “**” and “***” notes Replaced “Strike” with “STRIKE™“ & “HELIX” with “HELIX™” Added alternate units to dimensions [mm] Added page numbers to table of contents page Added page 76, (Ref section 4.9)

  • Page 3: Table Of Contents

    HELIX™ Manual (P/N 26291) Table of Contents Rev A (February 2018) HELIX™ PCU Fire Suppression System Table of Contents: Chapter 1: General Information ....................5 1.1 Introduction ........................ 6 1.2 What Can Be Protected ....................6 1.3 Testing Performed ...................... 6 Chapter 2: Component Description ..................
  • Page 4 HELIX™ Manual (P/N 26291) Table of Contents Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.13.1 Relay Control Module ..................23 2.13.2 Horn and Strobe Assembly ................24 2.14 Detection (LHD) installation Accessories ..............24 2.14.1 LHD Support Clips ..................24 2.14.2 Hood Fasteners .....................
  • Page 5 HELIX™ Manual (P/N 26291) Table of Contents Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.6 Pneumatic Actuation Network Installation ..............53 STRIKE ECS Installation ................... 54 4.7.1 Steps to System Installation ................54 4.7.2 STRIKE Control Unit Installation ..............54 4.7.3 Linear Heat Detector (LHD) Installation ............
  • Page 6 HELIX™ Manual (P/N 26291) Table of Contents Rev A (February 2018) HELIX™ PCU Fire Suppression System 6.1.1 Recharge Adapter .................... 94 6.1.2 Hydrotest Adapter ................... 94 6.1.3 Distribution Hose Blowout Adapter ..............94 6.1.4 Tee Handle ...................... 95 6.1.5 2 ½” Tight Access Open End Pump Wrench ............ 95 6.1.6 Pneumatic Actuation Network Test Adapter .............

  • Page 7: Chapter 1: General Information

    Amerex disclaims any liability for any use of the data and information contained herein by any and all other parties. Please direct questions concerning information in this manual to: AMEREX CORPORATION P.O.

  • Page 8: Introduction

    1.2 What Can Be Protected A complete PCU analysis must be performed for each piece of equipment being protected to determine the components that would require fire suppression by the Amerex HELIX Fire Suppression System. Protection may include but is not limited to: Pollution Control Units (PCU) •...

  • Page 9: Chapter 2: Component Description

    PCU Fire Suppression System Chapter 2: Component Description The following sections describe the various components available for use with the Amerex HELIX PCU Dry Chemical Fire Suppression System. These include Electronic Control Systems, Agent Cylinders of various sizes and capacity, and the Cylinder Brackets used for mounting each Agent Cylinder.

  • Page 10: Agent Cylinders

    PCU Fire Suppression System 2.1 Agent Cylinders The Amerex HELIX Fire Suppression System Agent Cylinders are available in two sizes, with different mounting options and orientations. The Agent Cylinders are shipped fully charged from the factory. Each Agent Cylinder includes a brass Agent Cylinder Valve with a Pressure Gauge and a safety Rupture Disc with an installed Dust Cap installed.

  • Page 11: Agent Cylinder Mounting Bracket

    Section 3.4. Care must be taken to only use the brand of fittings specified by each hose manufacturer for their hose. Substitution of unapproved hose or that of a different size will void AMEREX warranty and will adversely affect system performance. See Section 3.4 for installation instructions.

  • Page 12: Distributor Block 3/4" X 1/2

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.3.3 Distributor Block 3/4” X 1/2” (P/N 10178-R) The Distributor Block 3/4” X 1/2” is used in the Agent Distribution Network to distribute the flow of Dry Chemical Agent to multiple nozzles.

  • Page 13: Quik Seal Adaptors

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.3.5 Quik Seal Adapters (P/N 12510, 12512, 14204, 18252, 24737, 26427, 22280) [ITEM 16] Quik Seal Adapters and Compression Seal Adapters are UL Listed mechanical fittings that produce...

  • Page 14: System Actuation Control Heads

    Agent Cylinder Valve prematurely. A Vent Check must be used on all systems that utilize nitrogen pressure for activation of the Amerex HELIX Fire Figure 2.5.1 Suppression System. The body of the Vent Check is constructed of machined brass.

  • Page 15: Electric Nitrogen Actuator

    Nitrogen Cylinder. The pressure gauge is protected by an impact resistant plastic gauge guard. The Nitrogen Cylinder is shipped fully charged from the AMEREX factory with a protective shipping cap installed on the outlet threads.

  • Page 16: Linear Actuator

    (P/N 17137) each time that a Linear Actuator is installed. See Sections 4.3.1 and 4.5 for installation instructions. Use only 20500-R Linear Actuator for actuating a HELIX Fire Suppression System. Figure 2.5.5 2.5.6 50 psi Pressure Switch (P/N 22573-R or 23850-R) The 50 psi Pressure Switch is an optional switch designed to be used in the Pneumatic Actuation Network.

  • Page 17: Dry Chemical Suppression System Parts List

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.6 HELIX System Parts List Parts List Item Part Number Description 26318 Agent Cylinder, HX25ABC PRS SW 26320 Agent Cylinder, HX50ABC PRS SW...

  • Page 18: Strike Electronic Control System (Ecs)

    PCU Fire Suppression System 2.7 STRIKE™ Electronic Control System (ECS) This page describes the various components available for use with the Amerex STRIKE Electronic Control System (ECS). These include the central STRIKE Control Unit, Linear Heat Detector (LHD), cables and other components that comprise a complete electrical system. A simple STRIKE ECS diagram is given below, which shows available circuits and components (See Figure 2.7).

  • Page 19: Strike Control Unit & Enclosure

    PCU Fire Suppression System 2.7.1 STRIKE Control Unit & Enclosure (P/N 23826) The Amerex STRIKE ECS Control Unit is an alarm initiating and release unit designed to function without external power. The Control Unit utilizes two non-rechargeable batteries as a primary and secondary (backup) power supply and will sustain itself for up to six months.

  • Page 20: Strike Control Unit Indicators & Features

    (1) Manual Pull Circuit, Class B Terminated with 470kΩ End of Line Device (EOL) (2) Actuation Circuits Can be mapped to individual or both detection circuits Terminated to NC Pressure Switch (closed under pressure) supplied with Amerex (1) Pressure Switch Circuit HELIX Fire Suppression System...

  • Page 21: Manual Pull Stations

    2.8 Manual Pull Stations, Flush Mount (P/N 24168); Surface Mount (P/N 24290) Amerex offers two Manual Pull Stations for use with the STRIKE ECS. Manual Pull Stations are used to manually activate the STRIKE Control Unit from a remote location when a fire condition is observed.

  • Page 22: Linear Heat Detector

    Figure 2.9 2.10 Field Wiring Cables Amerex offers pre-assembled modular cables for use with the STRIKE ECS. These cables are pre- terminated with connectors and color coded to allow easy installation and troubleshooting. These cables are divided into two groups: lead cables and extension cables. Lead cables feature blunt cut...

  • Page 23: Actuation Cable

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.10.2 Actuation Cable, Lead (P/N 26354-XX) Actuation Lead Cables are used to connect a Linear Actuator to the STRIKE Control Unit in an actuation circuit only.

  • Page 24: Communication Cable

    Monitor Mode, or download the Event Log on the STRIKE ECS. The cable connects the PC Interface Port on the STRIKE Control Unit to the USB port of a laptop computer or PC. The latest version of STRIKE PC software is available on, and can be downloaded from the www.amerex- fire.biz website. TO PC INTERFACE Figure 2.10.6...

  • Page 25: Auxiliary Devices

    PCU Fire Suppression System 2.13 Auxiliary Devices The following auxiliary devices are available for use with the Amerex STRIKE ECS. Relay Modules can be connected to the auxiliary outputs terminal (TB2) on the STRIKE Control Unit and used to control other auxiliary devices such as Amerex supplied Electric Gas Valves and Horn and Strobe Assemblies, as well as other A/C powered external signaling devices: fan motors, pumps, appliances, etc.

  • Page 26: Horn And Strobe Assembly

    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.

  • Page 27: Hood Fasteners

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.14.2 Hood Fasteners, Quick Fastener (P/N 24832) Quick Fasteners are available for securing LHD Support Clips to a sheet metal mounting surface. These fasteners are supplied 24 to a bag along with a pilot drill bit for easy installation using a hand drill (capable of 2000-3500 rpm) with a 10 mm hex driver.

  • Page 28: Function Testing Devices

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.15 Function Testing Devices Test devices for performing function testing during initial commissioning or during required maintenance are available. These devices include LHD Test Leads for testing an LHD detection circuit and Alarm Modules for testing actuation circuits.

  • Page 29: Strike Ecs Parts List

    HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System 2.16 STRIKE ECS Parts List Parts List Item Part Description Number Number 23826 STRIKE Control Unit & Enclosure 24168 Manual Pull Station, Flush Mount...
  • Page 30 HELIX™ Manual (P/N 26291) Chapter 2: System Components Rev A (February 2018) HELIX™ PCU Fire Suppression System Parts List (continued) Item Part Description Number Number STRIKE 25264-25 Communication Cable FACP , 25 Foot Length STRIKE 25264-50 Communication Cable FACP , 50 Foot Length...

  • Page 31: Chapter 3: System Design

    Rev A (February 2018) HELIX™ PCU Fire Suppression System Chapter 3: System Design This Chapter describes system design and installation parameters of the Amerex HELIX Fire Suppression System, including suppression, electrical detection and actuation, and any auxiliary components. 3.1 Steps to System Design Determine the quantity of nozzles required based on the PCU size and number of filter banks.

  • Page 32: Agent Cylinder Sizing

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System AGENT DISTRIBUTION NOZZLES NETWORK FILTER BANKS (INSIDE) AIR FLOW DETECTION FILTER BANKS (INSIDE) NETWORK (LHD) Figure 3.2d 3.3 Agent Cylinder Sizing Agent Cylinders and their associated Cylinder Brackets can be selected after first determining the quantity of Nozzles required to protect the hazard(s).

  • Page 33: Agent Distribution Network Design

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.4 Agent Distribution Network Design After determining Nozzle and Agent Cylinder quantities and location(s), the Agent Distribution Network must be designed for transferring the Dry Chemical Agent to the Nozzles.

  • Page 34: Hx25 Agent Distribution Network (2 Nozzle)

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.4.1 HX25 Agent Distribution Network (2 Nozzle) TO DISCHARGE FITTING KIT (P/N 10199-R) 3/4” ELBOW 3/4” I.D. HOSE (OPTIONAL) 1/2” ELBOW (TYP) 1/2” ELBOW...

  • Page 35: Hx50 Agent Distribution Network With Tees (4 Nozzle)

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.4.2 HX50 Agent Distribution Network with Tees (4 Nozzle) 1/2” I.D. HOSE TO DISCHARGE FITTING KIT (P/N 10199-R) 1/2” 90° ELBOW (TYP) 3/4” I.D. HOSE 1/2”...

  • Page 36: Hx50 Agent Distribution Network With Distributor Block (4 Nozzle)

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.4.3 HX50 Agent Distribution Network with Distributor Block (4 Nozzle) TO DISCHARGE FITTING KIT (P/N 10199-R) 3/4” I.D. HOSE 1/2” ELBOW (OPTIONAL) 3/4” ELBOW...

  • Page 37: 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.

  • Page 38: Multiple Agent Cylinder Networks Pneumatic Control Heads

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.5.2 Multiple Agent Cylinder Networks using Pneumatic Control Heads (P/N 10147-R) Multiple Agent Cylinder networks may utilize Pneumatic Control Heads and a Pneumatic Actuation Network for system actuation.
  • Page 39 HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System For multiple Agent Cylinder networks using Pneumatic Control Heads (P/N 10147-R), a maximum of (8) eight cylinders may be used in a single system. Each control head will be connected in a “series”...

  • Page 40: Strike Ecs System Design

    Fire Suppression System 3.6 STRIKE ECS System Design Prior to installation of any components of the Amerex STRIKE Electronic Control System (ECS), a complete system design must be established. This design must comply with all requirements and limitations associated with the STRIKE ECS in this manual, all applicable NFPA standards, including National Electric Code and all other standards or laws deemed applicable to an installation by local authorities having jurisdiction (AHJ).
  • Page 41 ENABLED to facilitate Amerex COBRA Kitchen Fire Auxiliary Outputs (Relay 1, 2 & 3; FACP) ENABLED Suppression along with HELIX PCU Fire Table 3.6.1 Suppression System installations (Zone #1 & Zone #2). In this case, the STRIKE Control Unit could be programmed with Detection Zone #1 mapped to release Actuation Zone #1 and Detection Zone #2 mapped to release Actuation Zone #2.
  • Page 42 HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System Certain situations may require the use of multiple STRIKE ECS Control Units for detection/actuation of multiple PCUs or hoods. If an alarm or actuation of one STRIKE Unit is needed to trigger an alarm or actuation of the second STRIKE Unit, the Communication Cable (25264-XX) can be used for this purpose.
  • Page 43 HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System Certain situations may require to use of a central Fire Alarm Control Panel (FACP) that is used to trigger the alarm/actuation of a STRIKE Unit for PCU protection. The Communication Cable (25264 -XX) can be used for this purpose.

  • Page 44: Detection Circuit Design

    Fire Suppression System 3.6.2 Detection Circuit Design The Amerex STRIKE ECS supports up to two detection circuits. Each detection circuit may utilize Linear Heat Detectors (LHD) as a detection device. The length of Linear Heat Detection (LHD) required in a system will depend on the size of the PCU. Multiple detection devices may be used in a single circuit and can be connected in series.
  • Page 45 HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System As a minimum, a single LHD must be routed in a continuous “S” shaped pattern behind the last (downstream) filter bank in the PCU, resulting in 3 horizontal runs across the cross-sectional area of the PCU (See Figure 3.6.2b).

  • Page 46: Actuation Circuit Design

    The number of actuation devices or circuits required in a system will depend on the amount of fire suppression required. The Amerex STRIKE ECS supports up to two electronic actuation circuits. Each electronic actuation circuit may utilize only one Linear Actuator (P/N 20500-R) for actuation of an Agent Cylinder (with Electric Control Head) or Electric Nitrogen Actuator.

  • Page 47: Manual Pull Circuit Design

    HELIX™ Manual (P/N 26291) Chapter 3: System Design Rev A (February 2018) HELIX™ PCU Fire Suppression System 3.6.4 Manual Pull Circuit Design Manual Pull Stations are remotely located devices used to manually activate the STRIKE ECS in the event that a fire condition is witnessed. Manual Pull Stations may be installed in the dedicated manual pull circuit for complete system actuation.

  • Page 48: Pressure Switch Circuit Design

    Agent Cylinder. Agent Cylinders are provided from the factory with pressure switches installed. The Amerex STRIKE ECS supports a single pressure switch circuit. This circuit is limited to 100 feet (30.5 m). However, multiple pressure switches may be used in the single circuit and can be connected in series, creating a circuit loop.

  • Page 49: Relay Module & Auxiliary Circuit Design

    Fire Suppression System 3.6.6 Relay Module & Auxiliary Circuit Design The Amerex STRIKE ECS supports the use of an optional Relay Module to control A/C power to external devices and supports communication with an optional auxiliary Fire Alarm Control Panel (FACP).

  • Page 50: Chapter 4: System Installation

    Fire Suppression System Chapter 4: System Installation This Chapter describes installation of the Amerex HELIX Fire Suppression System. Prior to system installation, a complete PCU analysis must be performed and a proposed system layout or schematic, including a bill of materials, shall be created per Chapter 3.

  • Page 51: Agent Cylinder & Agent Cylinder Bracket Selection

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.2 Agent Distribution Network Installation Install the Agent Distribution Network using the guidelines defined in Section 3.4 and the following Sections. 4.2.1 Discharge Fitting Kit...

  • Page 52: System Actuation Control Head Installation

    Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.3 System Actuation Control Head Installation 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 sections describe installation of each of these options.

  • Page 53: Pneumatic Control Head

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.3.2 Pneumatic Control Head (P/N 10147-R) Install per the following: Remove Shipping Plate (P/N 10099) from top of Agent Cylinder Valve. Retain the (2) 5/16”-18 bolts (See Figure 2.1a).

  • Page 54: Psi Pressure Switch Installation

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.4 50 psi Pressure Switch Installation (P/N 22573-R or 23850-R) The 50 psi Pressure Switch is an optional device, installed using an installer supplied 1/4” NPT tee in the Pneumatic Actuation Network just before the first Pneumatic Control Head.

  • Page 55: Pneumatic Actuation Network Installation

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System (LINEAR ACTUATOR) LINEAR ACTUATOR (P/N 20500-R) LINEAR ACTUATOR MUST BE FULLY SEATED TO BRASS (ACTUATOR ADAPTER SURFACE ADAPTER) CABLE TIE TAMPER SEAL (P/N 01387)

  • Page 56: Strike Ecs Installation

    Materials such as EMT conduit and fittings, fasteners, clamps, and mounting hardware are not provided by Amerex and shall be installer supplied. Any field wiring for relay modules or auxiliary FACPs shall also be installer supplied.
  • Page 57 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System Consider the most convenient wire routing path of all external devices when determining the best mounting location for the STRIKE Control Unit and enclosure.

  • Page 58: Linear Heat Detector (Lhd) Installation

    All LHDs must be installed in accordance with the following instructions: Each LHD must be supported using Amerex supplied LHD Support Clips and Support Tubing • (P/N 16501/23524 Clips; P/N 24539 Tubing) or P-Clamps (P/N 18720-R). The LHD must be supported a minimum of every 24”...
  • Page 59 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System PREINSTALLED FEMALE TO DETECTION LEAD TO DETECTION CONNECTOR END OF LHD CABLE (STRIKE UNIT) PREINSTALLED LEAD CABLE (OUTSIDE OF PCU) FEMALE CONNECTOR (STRIKE...

  • Page 60: Lhd Support Clip & Support Tubing

    Mount the LHD Support Clips to a suitable mounting surface using the 1/4” mounting hole. Installer supplied 1/4” fasteners may be used or Amerex supplied Quick Fasteners (P/N 24832) or mounting rivets (P/N 20535 or 20536) may be used. Installation instructions are provided with Quick Fasteners and the Rivet Installation Tool (P/N 20552).
  • Page 61 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System (BULKHEAD) INDOOR APPLICATION SEALING WASHER BODY JAM NUT LOCK WASHER Figure 4.7.5a 3/4” (19 mm) HOLE COMPRESSION NUT, 1. FULLY INSTALL LOOSENED LHD PER SECTION 4.7.3...

  • Page 62: Lhd Connector Installation

    Electric Nitrogen Actuator (P/N 20775-R). 4.7.8 Manual Pull Station Installation The Amerex STRIKE ECS requires at least one Manual Pull Station (P/N 24168 or 24290) be installed. Manual Pull Stations must be installed indoors and no higher than 48 inches (1.21 m) from the floor and must be located along a path of egress.
  • Page 63 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System Surface Mounting (P/N 24290) For surface mount applications, the Manual Pull Station contains a red cover cup which conceals the included electrical outlet/conduit box and all wiring. The electrical outlet/conduit box contains 1/2”...
  • Page 64 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System Flush Mounting (P/N 24168) For flush mount applications, the Manual Pull Station contains an oversize red cover plate which conceals a cutout in the mounting surface used to recess the included electrical outlet/conduit box and all wiring.

  • Page 65: Relay Module & Optional Device Installation

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.7.9 Relay Module & Optional Device Installation The STRIKE ECS supports several optional devices if desired or required by the local AHJ. Such devices may include Relay Modules that can be used to control additional devices such as Electric Gas Valves, external alarms or signaling devices, fans, appliances, motors, pumps, etc.

  • Page 66: Field Wiring

    The following subsections describe the available cables and wiring methods for routing each circuit from each device to and into the STRIKE Control Unit enclosure. Amerex recommends routing individual cables by starting at each device and routing the blunt cut end (no connector) of each “Lead”...

  • Page 67: Detection Circuits

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.8.1 Detection Circuits The STRIKE ECS has two dedicated Class B detection circuits which support LHD detection devices or zone specific Manual Pull Station devices. Each detection circuit may utilize a single device or multiple devices connected in series.
  • Page 68 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System For dedicated manual pull stations installed in a detection circuit, the Manual Pull Station must be the first device in series, installed between the Control Unit and the first detection device. Also, Manual Pull Lead Cables (P/N 24412-XX) and Extension Cables (P/N 24413-XX) must be used in lieu of Detection Lead and Extension Cables for all connections to a Manual Pull Station.

  • Page 69: Actuation Circuits

    The STRIKE ECS has two dedicated actuation circuits which support the Linear Actuators used to actuate the Amerex HELIX Fire Suppression System. Each actuation circuit must support only one Linear Actuator. The Actuation Lead Cable (P/N 24411-XX) is used to connect the Linear Actuator to the STRIKE Control Unit.

  • Page 70: Manual Pull Circuit

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.8.3 Manual Pull Circuit STRIKE ECS has a single dedicated Class B manual pull circuit which supports any Manual Pull Stations desired for complete system actuation. The manual pull circuit may utilize a single Manual Pull Station or multiple Manual Pull Stations connected in series.
  • Page 71 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System For multiple Manual Pull Station installations (See Figure 4.8.3b): Begin at the last Manual Pull Station, located farthest from the STRIKE Control Unit. Route the female connector end (F) of the Manual Pull Extension Cable (P/N 24413-XX) from the installed electrical box to the inside of the next Manual Pull Station electrical box location.

  • Page 72: Pressure Switch Circuit

    The STRIKE ECS has a single dedicated pressure switch circuit which supports Agent Cylinder Pressure Switches used with the Amerex HELIX Fire Suppression System. The pressure switch circuit forms a continuous, normally closed loop and may utilize a single or multiple pressure switch devices connected in series.
  • Page 73 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System For multiple pressure switch circuit installations (See Figure 4.8.4b): Begin at the last Pressure Switch, located farthest from the STRIKE Control Unit. Route either end of the Pressure Switch Extension Cable (P/N 24703-XX or 21539-XX) to the next Pressure Switch.

  • Page 74: Relay Module & Optional Device Circuits

    HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System 4.8.5 Relay Module & Optional Device Circuits The STRIKE ECS Control Unit has three available relay output circuit terminals for use with a Relay Module to control optional external A/C devices such as Electric Gas Valves, auxiliary alarms, horns, fans, motors, pumps, appliances, etc.
  • Page 75 HELIX™ Manual (P/N 26291) Chapter 4: System Installation Rev A (February 2018) HELIX™ PCU Fire Suppression System STRIKE CONTROL UNIT 12 VDC WIRING (14-26 AWG) * Normally Open (N/O) & COM contacts on Relay 2 or 3 may be used for Communication Cable (P/N 25264–XX)

  • Page 76: Strike Control Unit Wiring & Termination

    (#1 & #2), actuation (#1 & #2), manual pull, and pressure switch cables. All Amerex supplied “Lead” cables have a blunt cut end with no connector for termination on the STRIKE Control Unit. Two cable tie mounts are provided within the enclosure for cable/wire routing around the STRIKE Control Unit.
  • Page 77 (-) BLACK ACTUATION LEAD #2 AN EXTRA LABEL IS PROVIDED WITH (24411-XX) (+) WHITE TERMINATE ALL AMEREX CABLES WHERE SHOWN IN EACH CABLE AND TABLE 4.9a. ONLY ACTUATION CABLES ARE CAN BE APPLIED TO (-) BLACK ACTUATION LEAD #1 POLARITY SENSITIVE. LEAVE SCREW TERMINALS...
  • Page 78 Note: Cables connected to the STRIKE Unit on Terminal Board #1 (TB1) are limited to only Amerex supplied cables as permitted in this manual. Any wiring or circuits connected to the outputs on Terminal Board #2 (TB2) are limited to the maximum voltage and current defined in Table 2.7.2b.

  • Page 79: Strike Control Unit Programming

    (See Section 4.11). Also, programming functions require use of the PC Interface Cable (P/N 16609) and a laptop or tablet with the latest Amerex STRIKE PC software installed. The latest version of PC software is available on and can be downloaded from the www.amerex-fire.biz website.

  • Page 80: Pc Software Installation & Interface Connection

    Fire Suppression System 4.10.2 PC Software Installation & Interface Connection The Amerex STRIKE PC software may be installed on any PC operating with Windows 10 or earlier version. The latest version of Amerex STRIKE PC software can be downloaded from the www.amerex-fire.biz website.

  • Page 81: Programming A System Configuration

    Information window, after which the current configuration is displayed. The downloaded configuration can be saved on the PC for future use by selecting the ‘File” tab and “Save As”. The default folder in the user’s ‘Documents’ folder is ‘My Amerex Files\STRIKE ECS Unit\Config’.
  • Page 82 (actuation circuits). Each detection zone can be mapped to the desired discharge zone(s) as a means of actuating an Amerex HELIX Fire Suppression System zone. In the STRIKE ECS Unit Utility window, select the desired discharge zone(s) by choosing from the drop menu next to each enabled detection zone.
  • Page 83 Otherwise, disabling this circuit is not permitted by NFPA or UL 864. Pressure Switch Programming - The pressure switch circuit is enabled as a default setting since a pressure switch is included with Agent Cylinders as part of the Amerex HELIX Fire Suppression System.
  • Page 84 STRIKE Control Unit is in programming mode. Next, the configuration should be uploaded to the Amerex STRIKE ECS by clicking the ‘Upload Configuration To Control Panel’ button at the bottom right of the STRIKE ECS Unit Utility window. Enter the password in the password prompt, after which an ‘Information’...

  • Page 85: Monitor Mode

    Fire Suppression System 4.10.4 Monitor Mode When using the Amerex STRIKE PC software, a Monitor Mode tab is available on the STRIKE ECS Unit Utility window. Monitor Mode allows the user to view complete system status. This feature can be useful when programming a system configuration by indicating which circuits are enabled/ disabled and if a fault or alarm condition currently exists.

  • Page 86: Function Testing & Initial Commissioning

    Fire Suppression System 4.11 Function Testing & Initial Commissioning After the desired configuration has been uploaded from a PC, the Amerex STRIKE ECS and components must be functionally tested as part of the initial commissioning, just prior to placing the system into service.

  • Page 87: Detection Sensor Testing

    HELIX™ PCU Fire Suppression System 4.11.2 Detection Sensor Testing Linear Heat Detector (LHD) sensors require testing upon initial commissioning of the Amerex STRIKE ECS. LHD sensors CANNOT be subjected to their set point temperature and must be tested in a different manner.

  • Page 88: Manual Pull Station Testing

    Figure 4.11.3c 4.11.4 Fault Testing Amerex STRIKE ECS continuously monitors all circuits and any devices and will display a fault condition on the STRIKE Control Unit if a problem is detected. A fault is indicated by the yellow ‘Service System’ LED. Additional fault conditions are shown in Section 7.2. Perform the following tests to check each circuit.

  • Page 89: Placing The System Into Service

    4.12.1 Placing the Suppression System in Service Once the installation instructions from the previous sections are complete, perform the following steps in order to place the Amerex HELIX Fire Suppression System into working service: Connect any Agent Distribution Networks to Agent Cylinder(s) and Nozzles.
  • Page 90 • Current date of commissioning (Installation date) • Battery replacement date (6 months from current date of commissioning). • The Amerex STRIKE Electronic Control System is now in service. 1. CONNECT INCLUDED PRIMARY BATTERY FIRST IN ‘Primary’ LOCATION ON STRIKE CONTROL UNIT 2.

  • Page 91: Provide Owner / Operator Training

    It is the Amerex installer’s / servicing distributor’s responsibility to explain those details to the owner/ operator. After finishing a system installation, the installer must do an installation review with the equipment owner and operator.

  • Page 92: Chapter 5: Inspection & Maintenance

    Verify the date of the battery replacement schedule on the Battery Replacement Label. If • battery is scheduled to be replaced within a month, contact an Amerex Certified and Authorized Servicing Technician for scheduling a replacement. If any service is required as a result of monthly inspections, it should be done only by an Amerex Certified and Authorized Servicing Technician.

  • Page 93: 6) Six Year Maintenance

    Document all work completed during service for record retention. Disclose any anomalies and • deficiencies to the property owner for corrective action requirements. 5.4 (6) Six Year Maintenance: AUTHORIZED AMEREX TECHNICIAN Perform semi-annual inspection. • Per NFPA 17 guidelines, stored pressure Dry Chemical Agent Cylinders must be de- •...

  • Page 94: 12) Twelve Year Maintenance

    Chapter 5: Inspection & Maintenance Rev A (February 2018) HELIX™ PCU Fire Suppression System 5.5 (12) Twelve Year Maintenance: AUTHORIZED AMEREX TECHNICIAN Perform (6) six year maintenance. • The Agent Cylinder and all hose assemblies must be hydrostatically tested at a minimum of •...
  • Page 95 HELIX™ Manual (P/N 26291) Chapter 5: Inspection & Maintenance Rev A (February 2018) HELIX™ PCU Fire Suppression System 1. DISCONNECT SECONDARY 3. MOVE PREVIOUS SECONDARY BATTERY FIRST BATTERY TO PRIMARY LOCATION 2. DISCONNECT AND REMOVE (LEFT) PRIMARY BATTERY Figure 5.6a Figure 5.6b...

  • Page 96: Chapter 6: Recharge

    6.1.3 Distribution Hose Blowout Adapter (P/N 12129) When commissioning the Amerex HELIX System, upon initial installation, and at each (6) six month service, the Agent Distribution Network must be purged with dry air or nitrogen at a minimum of 90 psi (620 kPa) by using the Distribution Hose Blowout Adapter.

  • Page 97: Tee Handle

    HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System TEE HANDLE 6.1.4 Tee Handle (P/N 10134) (P/N 10134) The Tee Handle is used to manually actuate the Agent Cylinder. The Tee Handle is also used to open the Agent Cylinder Valve for recharging.

  • Page 98: Recharge Instructions

    1. If the Dry Chemical Agent has not been heated to its melting point, it may be swept and vacuumed from all surfaces it has contacted. 2. Use shop air to blow residual chemical away from surfaces. Note: Amerex Dry Chemical Agent is considered a nuisance dust and is non-toxic. See SDS on Amerex website at www.amerex- fire.com.
  • Page 99 HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System In order to remove the Safety Lock Washer (P/N 17637) from the Pneumatic Piston Assembly (P/N 17635), use a flat head screwdriver to depress the Spring Plunger located on the piston shaft.
  • Page 100 HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System For Systems Using Electric Control Head (P/N 14032-R): For systems using an Electric Control Head (P/N 14032-R), perform the following steps. The control head must be disassembled, cleaned, and reassembled after each use.

  • Page 101: Purging The Agent Distribution Network

    HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System 6.2.2 Purging the Agent Distribution Network: The Agent Distribution Network must be purged following a system discharge or during routine maintenance. Perform the following: Remove the Discharge Fitting Kit (P/N 10199-R) from the Agent Cylinder Valve (See Figure 4.2.1).
  • Page 102 HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System Valve Disassembly (See Figure 6.2.4a): Unscrew and remove Downtube from Agent Cylinder Valve using a 1 ½” [38 mm] open end wrench on hex section of Downtube.

  • Page 103: Agent Cylinder Refill

    ADVERSE SYSTEM PERFORMANCE, PROPERTY DAMAGE, SERIOUS BODILY INJURY AND POSSIBLE DEATH! CONSULT THE SAFETY DATA SHEET (SDS) FOUND ON AMEREX WEBSITE WWW.AMEREX-FIRE.COM FOR THE PARTICULAR AGENT BEING USED. After completely emptying and vacuuming the Agent Cylinder (See Section 6.2.4), fill the Agent •...

  • Page 104: Actuator Removal & Cleaning

    HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System 6.2.7 Actuator Removal & Cleaning For systems using a Pneumatic Actuation Network with an Electric Nitrogen Actuator (P/N 20775-R) the actuator must be removed, disassembled, cleaned, and reassembled after each use.

  • Page 105: Pneumatic Actuation Network Testing

    HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System ADAPTER (P/N 20458) O-RING (P/N 10513) INCLUDED IN REBUILD KIT (P/N 10939) PUNCTURE STEM ASSEMBLY (P/N 22873) SPRING (P/N 10097) BACK-UP RINGS (INCLUDES O-RING AND...

  • Page 106: Nitrogen Cylinder Recharge

    HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System 6.2.9 Nitrogen Cylinder Recharge WARNING: NITROGEN CYLINDERS OPERATE AT EXTREMELY HIGH PRESSURE (1800 psi). HANDLE WITH EXTREME CAUTION. PERFORM ALL RECHARGING WITH NITROGEN CYLINDER CONTAINED INSIDE A SUITABLE SAFETY CAGE Slowly remove Nitrogen Cylinder(s) (P/N 09956-R) from actuator as described in Section 6.2.8,...
  • Page 107 HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System Inspect sealing seat on Nitrogen Cylinder hex fitting. Discard Nitrogen Cylinder if seat is damaged (See Figure 6.2.9c). SEALING SEAT Install a new Rupture Disc. The Rupture Disc on Nitrogen Cylinders may be replaced only with P/N 09958.
  • Page 108 HELIX™ Manual (P/N 26291) Chapter 6: Recharge Rev A (February 2018) HELIX™ PCU Fire Suppression System NOMINAL PRESSURE Figure 6.2.9e When the determined pressure is reached, tighten the Rupture Disc (P/N 09958) by applying a torque wrench to the Recharge Adapter wrench and tightening clockwise to 40 ft-lbs [54 Nm].

  • Page 109: Chapter 7: System Alarms & Troubleshooting

    Fire Suppression System Chapter 7: System Alarms & Troubleshooting The Amerex STRIKE Electronic Control System (ECS), under normal working conditions, will display the green “System Normal” LED on the STRIKE Control Unit by flashing once approximately every 4 seconds. If the green “System Normal” LED is not flashing, an alarm or trouble condition exists with the system.

  • Page 110: Service System (Fault) Condition

    LHDs and replace. Service System (Fault) Condition The Amerex STRIKE ECS is designed to supervise and monitor all detection, manual pull, actuation, and pressure switch connections and circuits. If the system detects a problem, a trouble (fault) condition will result, indicated by the yellow ‘Service System’...

  • Page 111: Battery Fault Condition

    The Event Log allows the user or servicing distributor to access a history of events that have occurred on Amerex STRIKE ECS. The Event Log can be used to identify intermittent issues that may not always be seen by the servicing technician. It may be used to determine the most recent maintenance performed on the system, or for system troubleshooting and analysis of past system history.
  • Page 112 HELIX™ PCU Fire Suppression System The Event Log may be saved on the PC by clicking the ‘Save’ button in the lower right of the window (See Figure 7.5). The default folder is ‘My Amerex Files/STRIKE ECS Unit/EventLog’. The file format is *.csv, which can be opened and viewed using Microsoft Excel.

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