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Janus Mv Series - User Manual

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Mv Series and Lv Series
Engineered Dry Chemical
Fire Extinguishing Systems
Issued April 26, 2018
DOC324 REV C
(Revised March 22, 2022)
Operation, Design, & Service Manual
DRY-CHEMICAL EXTINGUISHING SYSTEM
UNIT - ENGINEERED TYPE
UL FILE # EX27541

Table of Contents

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Janus Mv Series Specifications

General IconGeneral
BrandJanus
ModelMv Series
CategoryFire Extinguisher
LanguageEnglish

Summary

General Information

Listings and Approvals

Details Underwriters Laboratories (UL) listings and approvals for the Mv and Lv Series systems.

Extinguishing Agent

Description of the ABC dry chemical agent used in the fire extinguishing systems.

Safety Considerations

Outlines crucial safety precautions for handling the dry chemical agent and system.

System Components and Description

Cylinder Assembly Details

Description of the cylinder, dip tube, and cylinder valve assembly.

Trim Components Overview

Covers essential system trim components like gauges and actuators.

Multi-Cylinder Arrangement Components

Explains components required for multi-cylinder system configurations.

Explosion-Proof Actuation Components

Describes components for installation in potentially hazardous areas.

Supplemental Components

Lists additional components for specific system arrangements.

Discharge Nozzle Types

Details various types of fixed and engineered orifice discharge nozzles.

System Design Principles

Hazard Analysis and System Selection

Steps for identifying hazards and choosing the appropriate system type.

General Purpose and Industrial Hazards Design

Design guidelines for general purpose and industrial hazard applications.

Vehicle Paint Spray Booth (VPSB) Design

Specific design considerations for vehicle paint spray booth fire protection.

Open Front Paint Spray Booths (OFPSB) Design

Design guidelines for open front paint spray booth applications.

System Installation Procedures

Mechanical Installation Guidelines

Procedures for the physical installation of system components.

Installing Discharge Piping

Guidelines for selecting, installing, and supporting discharge piping.

Installing Cylinder Assembly

Instructions for securely mounting the cylinder assembly and its components.

Installing Pilot Actuation Line

Procedures for assembling and installing the pilot actuation line.

Electrical Installation Requirements

Guidelines for proper electrical installation and wiring.

Commissioning the System

System Review Checklist

Pre-commissioning checks to ensure system readiness and integrity.

Discharge Piping Pressure Test

Procedure for pressure testing the discharge piping network.

Actuator Installation Steps

Instructions for installing pneumatic, electric, and manual valve actuators.

Warning Sign Placement

Instructions for proper placement of warning signs.

System Inspection and Maintenance

Monthly Inspection Procedures

Routine checks to ensure system operational status and integrity.

Semi-Annual Maintenance Checks

Semiannual checks for agent quantity and cylinder pressure.

Annual Maintenance Procedures

Comprehensive annual inspection of the entire system.

System Recharge and Reset

Cleanup Following Discharge

Procedures for cleaning up dry chemical agent after system discharge.

Recharging Agent Cylinder

Detailed steps for removing, servicing, and refilling agent cylinders.

Recharging Remote Nitrogen Actuation Cylinder

Procedures for recharging remote nitrogen actuation cylinders.

Appendix A: Safety Data Sheet

Appendix B: Assorted Charts

Appendix C: Auxiliary;Legacy Components

Legacy Components Information

Technical data for parts no longer available for purchase.

Appendix D: Alternate Nozzle Spacing Options