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CaptiveAire EWC - User Manual

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Part No. A0029342
August 2020 Rev. 6
UL EX27953
Model EWC (Electric Wet Chemical) Extinguishing System
Installation, Operation, and Maintenance Manual
EWC Extinguishing System Typical Hood End Cabinet Installation
RECEIVING AND INSPECTION
Check for any signs of damage upon receipt, and if found, report it immediately to the carrier.
Check that all items are accounted for and free of damage.
WARNING!!
The Electric Wet Chemical (EWC) extinguishing system unit is to be installed, inspected,
recharged and maintained in accordance with NFPA 17A, NFPA 96, and the National Fire Code of
Canada as applicable.
Installation and maintenance of the EWC extinguishing system must be performed in
accordance with this manual by a factory trained and authorized distributor. Improper
installation poses serious risk of injury due to electric shock and other potential hazards. Read
this manual thoroughly before installing or servicing this equipment. ALWAYS disconnect
power prior to working on equipment.
Save these instructions. This document is the property of the owner of this equipment and is required
for future maintenance. Leave this document with the owner when installation or service is complete.

Table of Contents

Questions and Answers

  • J
    Justin BlankenshipAug 13, 2025
    What to do if my CaptiveAire EWC Fire Extinguisher system will not turn off?
    • C
      Claudia AbbottAug 13, 2025
      If your CaptiveAire Fire Extinguisher system won't turn off, it could be due to a hot duct sensor or a pushed remote manual actuation device. If the duct sensor is hot because heat has activated it, remove the heat source or allow the system to extinguish the fire. Once resolved, press the reset button on the electrical control package. If the remote manual actuation device has been pushed, reset the remote push station after the fire is out and then press the reset button on the electrical control package. To reset the remote push station, twist it clockwise until it resets.
  • B
    Betty JoyceAug 16, 2025
    What to do if the CaptiveAire Fire Extinguisher audible alarm is on?
    • C
      Charles ThomasAug 17, 2025
      If the audible alarm of your CaptiveAire Fire Extinguisher is activated, it means the fire system has been activated. First, verify that the fire is out. Then, reset the fire system.
  • M
    Mary YoungAug 20, 2025
    What does it mean if the Fire System Activated light is on in my CaptiveAire EWC?
    • T
      Tyler LittleAug 20, 2025
      If the 'Fire System Activated' light is illuminated on your CaptiveAire Fire Extinguisher, it indicates that the fire system has been activated. You should verify that the fire is extinguished and then reset the fire system.
  • M
    Martin ClarkAug 25, 2025
    Why is the CaptiveAire Fire Extinguisher exhaust fan on but the supply fan won't start?
    • J
      John DavisAug 25, 2025
      If the exhaust fan is running but the supply fan won't start in your CaptiveAire Fire Extinguisher, it could be due to a couple of reasons: * A broken supply fan belt. If this is the case, replace the fan belt. * The fire system is not armed. The fire system distributor must arm the fire system.
  • T
    Tonya FigueroaAug 27, 2025
    What to do if CaptiveAire EWC gas valve does not close?
    • J
      Jason AndersonAug 27, 2025
      If the gas valve of your CaptiveAire Fire Extinguisher fails to close, it might be because there is debris on the gas valve seal. To resolve this, fully clean the gas valve and strainer.
  • R
    Russell CollinsAug 31, 2025
    What to do if a fault code is flashing on the “Fire System Activated” light of my CaptiveAire EWC Fire Extinguisher?
    • A
      annette67Sep 1, 2025
      If a fault code is flashing on the 'Fire System Activated' light of your CaptiveAire Fire Extinguisher, it means a fault has been detected in the Fire Protection System. Count the number of flashes and refer to Table 20 to identify the specific fault.
  • J
    James FullerSep 4, 2025
    What does 'Supervised Loop Fault' mean on my CaptiveAire EWC Fire Extinguisher?
    • D
      dwrightSep 4, 2025
      A 'Supervised Loop Fault' on your CaptiveAire Fire Extinguisher indicates an open supervised loop between Terminals 21 and 24. You will need to locate and repair the faulty wiring in the 21-24 supervised loop.
  • J
    Jordan ReillySep 8, 2025
    What does 'Ground Fault' mean on my CaptiveAire Fire Extinguisher?
    • W
      William BeckSep 8, 2025
      A 'Ground Fault' on your CaptiveAire Fire Extinguisher indicates a fault in the 24V DC CORE Power Supply wiring or components. To fix this, locate and repair the faulty wiring in the 22-23 supervised loop.

Summary

COMPONENTS

Cylinder Assembly

Details the EWC cylinder assembly, its components, and pressure-temperature relationship.

Actuator Kits and Valves

Covers Primary Actuator Kit (PAK) and Secondary Valve Actuator (SVA) components and function.

INSTALLATION

Cylinders and Mounting

Covers system installation, cylinder mounting, and bracket details.

Actuator Installation

Details the installation procedures for PAK and SVAs.

Protection Coverage

Duct and Plenum Protection

Details protection for ducts and plenums, including nozzle placement.

Appliance Protection

Covers overlapping and dedicated nozzle coverage for cooking appliances.

Dedicated Appliance Protection

Details coverage requirements for individual appliances not meeting overlapping criteria.

Piping and System Configuration

Agent Distribution Piping

Details the agent distribution piping requirements and configuration.

OPERATION

TROUBLESHOOTING

System Troubleshooting

Lists common problems, potential causes, and corrective actions for the system.

INSPECTION AND TEST

Start-up;Test Procedure

Outlines the steps for preparing the system and connecting test equipment.

Test Procedure

Describes the step-by-step process for activating and verifying system operation.

MAINTENANCE

CaptiveAire EWC Specifications

General IconGeneral
BrandCaptiveAire
ModelEWC
CategoryFire Extinguisher
LanguageEnglish

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