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Start with a complete project information package

Technical submittal support is more effective when the project scope, hazard, enclosure, system configuration, piping constraints, operating sequence, applicable standards, approval requirements, and requested deliverables are clearly defined.

Governing principle

Submittal support does not replace qualified system design

Scope of submittal support

Submittal support can assist with document coordination, configuration review, technical information, and project-specific system documentation, but it does not replace qualified system design, the current controlled manual, the approved calculation method, applicable standards, project specifications, or AHJ review.

Responsibility for the final project design, drawings, calculations, code compliance, installation, testing, and acceptance must be established by the project team in accordance with the applicable contractual and jurisdictional requirements.

Project information

Information that supports project review

Project name
Project location
Customer or contractor contact
Protected hazard
Occupancy
Room or enclosure dimensions
Calculated enclosure volume
Design temperature range
Altitude where relevant
Combustible materials
Energized equipment
Enclosure openings
Leakage considerations
Raised floors or concealed spaces
Suspended ceilings where relevant
Ventilation and HVAC conditions
Doors and dampers
Equipment shutdown requirements
Required operating sequence
Cylinder-storage location
Available storage space
Proposed piping routes
Pipe length and elevation considerations
Nozzle-location constraints
Pressure-relief considerations
Applicable specifications
Applicable codes and standards
Requested approval or certification basis
Jurisdiction and AHJ
Requested deliverables
Required schedule
The required information varies by project. Additional information may be needed before a system configuration or technical submittal can be reviewed.
Review groups

Organizing project information

Project information is often organized into practical review groups. These support coordination; they do not by themselves complete system design.

Hazard and enclosure

Hazard classification
Combustible materials
Equipment and contents
Occupancy
Room geometry
Enclosure volume
Openings
Leakage
Concealed spaces
Operating temperature

System configuration

Proposed system family
Container size
Working pressure
Number of containers
Cylinder location
Valve and actuation arrangement
Nozzles
Major system components
Configuration-specific approval requirements

Piping and discharge

Piping route
Pipe sizes where already established
Elevation changes
Fittings
Branch arrangement
Nozzle locations
Discharge constraints
Manifold arrangement where applicable
Routing conflicts

Controls and operating sequence

Detection interface
Releasing sequence
Pre-discharge alarm
Time delay
Manual release
Abort provision where applicable
Equipment shutdown
HVAC shutdown
Damper operation
Post-discharge ventilation
Re-entry requirements
Drawings & calculations

Drawings and calculations depend on the project and scope

Project drawings, calculations, equipment selections, and design documentation depend on the defined scope of work, available project information, qualified system design, applicable standards, approved methods, system configuration, and project requirements.

Hydraulic calculations must use the approved calculation method, current software version where applicable, current component data, and the configuration limits associated with the system being designed.

Hydraulic-calculation software is controlled and is not provided as a public download.

Submittal package

A project submittal may include

Depending on the project scope and available controlled documentation, a suppression-system submittal package may include applicable technical documents and project-specific information such as:

System description
Applicable product information
Bill of materials
Equipment schedules
System layout information
Piping and nozzle information
Design criteria
Hydraulic-calculation documentation where applicable
Detection and releasing sequence information
Operating information
Applicable controlled manual references
Approval or certification information applicable to the proposed configuration
Installation requirements
Inspection and maintenance information

The exact content of a submittal package depends on the project, contractual scope, system configuration, available released documents, approval requirements, and AHJ expectations.

Approval verification

Approval status must match the proposed configuration

Approval and certification status varies by system configuration, including container size, working pressure, component, arrangement, and jurisdiction. Approval of one configuration does not automatically extend to another.

The proposed bill of materials, configuration, model information, limitations, and certification scope should be verified before approval language is incorporated into a project submittal.

Review approval & certification status
Revision control

Use current controlled documents

Submittal packages should reference the current controlled technical documents applicable to the system configuration being proposed.

Superseded, preliminary, translated, extracted, reformatted, or third-party copies must not be treated as controlling unless DueNorth has expressly identified them as current and approved for use.

Open document library
Public document

Public technical document currently available

FK-5-1-12 System Design, Installation, Operation and Maintenance Manual
Part numberDN-FK-DIOMMVersion1.00DateMay 2026
View document library

Verify the part number, version, date, and release status before relying on any technical document.

Getting ready

Before requesting submittal support

Identify the project and protected hazard
Provide room dimensions and enclosure details
Identify occupancy and operating conditions
Provide available drawings where applicable
Identify the proposed system configuration if already selected
Provide piping-routing information where available
Identify shutdown and releasing requirements
Provide applicable specifications
Identify required approvals
Identify the jurisdiction and AHJ
Identify the documents or deliverables being requested
Provide the required review or bid date
Incomplete information may limit the level of technical review that can be provided.
Scope & responsibility

Project responsibilities must remain clear

Technical support, document review, configuration assistance, or comments provided by DueNorth do not transfer responsibility for the final project design, installation, code compliance, inspection, testing, permitting, or AHJ acceptance unless responsibility is expressly established in the applicable project agreement.

Request project-specific submittal support
Share the project scope, hazard, enclosure information, proposed system configuration, piping information, operating sequence, applicable standards, approval requirements, requested deliverables, and schedule with the DueNorth team.