Fire Suppression System Integration & Inspection Coordination
When hood installation and fire suppression are not aligned, inspections fail and openings get delayed. Suppression nozzles conflict with baffles. Interlocks are wired incorrectly. Penetrations are placed without coordination. These issues are preventable.
CRS Hoods coordinates commercial kitchen hood systems with licensed fire suppression contractors across Delaware to ensure the full system functions properly and passes final inspection without delays.
Why fire suppression coordination is critical
A Type I hood system must work as one complete safety assembly. The hood, welded grease duct, exhaust fan, make-up air unit, and suppression system are interdependent. If one component is installed without alignment, the entire system can fail inspection.
Proper coordination ensures:
Nozzle placement does not interfere with grease filters or airflow.
Fire-rated penetrations are sealed correctly.
Manual pull stations are accessible and code compliant.
Interlock wiring shuts down fans when suppression activates.
Suppression coverage matches the cooking equipment layout.
Inspectors receive organized documentation at final walkthrough.
What we actually do
We do not replace your licensed fire suppression contractor. We make sure their system integrates correctly with the hood and duct system from a mechanical and code perspective.
Our coordination services include:
Reviewing hood and duct shop drawings alongside suppression layouts.
Identifying nozzle conflicts with baffles and cooking appliances.
Confirming proper penetration locations through duct and rated assemblies.
Verifying interlock wiring between exhaust fans and make-up air systems.
Coordinating installation sequencing between trades.
Preparing inspection-ready documentation packages.
Technical coordination checks we perform
To prevent inspection failure, we evaluate the following:
Clearance between suppression nozzles and grease filters
Placement of heat detection lines relative to equipment output
Location of manual pull stations and control valves
Fire-stopping at all suppression pipe penetrations
Electrical interlock logic between suppression and ventilation equipment
Accessibility of cleanouts and duct access panels
Our integration process
DRAWING REVIEW
We analyze hood shop drawings and suppression plans for conflicts before installation begins.
MARKUPS AND CORRECTIONS
We provide clear annotations showing exact penetration points and clearance adjustments.
TRADE COORDINATION
We align timelines so suppression piping and ductwork are installed in the correct sequence.
FIELD VERIFICATION
Before final inspection, we verify nozzle positioning, interlocks, and accessibility.
FINAL WALKTHROUGH SUPPORT
We attend or support final inspections with documentation and clarification if required.
Documentation Provided for Inspection
To streamline approvals, we supply:
Annotated mechanical drawings
Interlock wiring diagrams
Commissioning verification sheets
Photo documentation of penetrations and clearances
This reduces inspector questions and minimizes reinspection risk.
Common issues we prevent
Suppression nozzles installed too close to hood baffles
Pipe penetrations through rated walls without proper fire sealing
Fans continuing to operate during suppression discharge
Make-up air units not responding correctly to system activation
Trades installing components in the wrong order
Missing documentation during final review
Avoiding these problems protects your opening timeline.
Built for new construction and remodel Projects
Whether you are opening a new restaurant or upgrading an existing kitchen, suppression coordination should happen before installation begins. Early review prevents expensive corrections later.
We work with general contractors, restaurant owners, and mechanical trades to protect project timelines and inspection outcomes.
Frequently Asked Questions
No. We coordinate and integrate with licensed suppression contractors to ensure the mechanical system aligns with their installation.
Interlocks shut down exhaust fans and sequence make-up air units during suppression discharge. Without proper interlocks, smoke can spread and inspections can fail.
Yes. Coordinated drawings and verified installations reduce red flags during final walkthroughs.
Yes. Inspectors expect confirmation of interlocks, nozzle placement, and mechanical integration. We prepare this in advance.
Ready to restore proper airflow?
Do not risk failed inspections, overheated kitchens, or emergency shutdowns due to poor exhaust performance.
Call 302-653-4111 or fill the form below.