Okay, let's break down the requirements for your Temperature Monitoring System (TMS) within the Automated Storage and Retrieval System (ASRS) rack, considering the legal and standards context in the US (based on your reference to NFPA 72 and UL 864). Keep in mind that codes and interpretations can vary by jurisdiction, so consulting with local fire marshals or authorities having jurisdiction (AHJ) is crucial for definitive answers.

Here's a breakdown of your questions

1. Is there a legal requirement that TMS be linked with the factory's FACP? (NFPA 72, etc.)
Generally, No, inherently. The key here is "inherently." NFPA 72 does not automatically require every fire detection system in a facility to be connected. The requirement to connect to the factory's FACP is dependent on the specific use case and fire risk assessment.

NFPA 72 and Risk Assessment

NFPA 72 (National Fire Alarm and Signaling Code) covers the application, installation, and maintenance of fire alarm systems. It doesn't mandate every isolated detection system be linked, unless a risk assessment determines that the lack of integration poses a significant hazard.

Factors influencing the requirement



Occupancy Type

Is the factory classified as a high-hazard occupancy?

Contents of the ASRS Rack

Are flammable or combustible materials stored in the rack? The type and quantity of materials significantly increase the risk. If the rack is primarily storing non-combustible materials, the need for integration may be lower.

Factory's Fire Protection Strategy

What are the existing fire suppression systems (sprinklers, etc.) in the factory? Does the factory's FACP have a zone specifically dedicated to the ASRS area?

Life Safety Considerations

How quickly can personnel respond to a fire in the ASRS if it's not connected to the main FACP? Would a delayed response endanger occupants?

Local Building Codes

Always check local building codes, as they might have specific requirements for ASRS systems or material handling areas. They often reference or amend NFPA codes.

Insurance Requirements

Your insurance carrier may have requirements for fire protection that go above and beyond the minimum code requirements.

When integration might be required

If the ASRS contains a significant quantity of flammable or combustible materials. If a fire in the ASRS could quickly spread to other areas of the factory. If the factory's fire safety plan relies on early detection and notification to ensure timely evacuation or suppression. If local codes specifically require it for ASRS systems in your type of factory.

Action

You need to conduct a thorough fire risk assessment of the ASRS rack's contents and its surroundings. This assessment will help determine if the lack of integration with the factory's FACP presents an unacceptable risk. Document this assessment.

2. Is there a legal requirement that TMS and heat and smoke detector in TMS must obtain UL 864 certification even if TMS is not linked with the factory's FACP?

Again, generally, No, directly, unless otherwise explicitly stated in the legal requirement. UL 864 Scope

UL 864 is the Standard for Control Units and Accessories for Fire Alarm Systems. It applies to components of fire alarm systems.

Independent System

If the TMS is a completely independent system (no connection to the factory FACP, used only for internal monitoring and potentially triggering a local alarm or shutdown of the ASRS), then UL 864 might not be explicitly required by code.

Factors influencing the requirement



Insurance Requirements

As stated before, insurance companies may require UL listing for any fire detection or suppression equipment, regardless of its connection to a main FACP.

Local Jurisdictional Interpretation

The AHJ could interpret the code to require UL 864 listed components, even in an independent system, if they believe it's necessary for safety. This is more likely if the materials in the rack are highly hazardous.

Internal Safety Policies

Your company's internal safety policies might require UL listing for all fire detection equipment, regardless of code requirements.

Liability

Using UL 864 listed equipment offers a degree of legal protection, as it demonstrates that the equipment has been tested and certified to meet certain safety standards.

Why UL 864 Listing is Highly Recommended, even if not legally mandated



Reliability and Performance

UL 864 listed equipment has undergone rigorous testing to ensure it performs reliably in fire conditions.

Compatibility

UL 864 listed devices are designed to be compatible with other fire alarm system components.

Liability Protection

Using listed equipment demonstrates due diligence and reduces potential liability in the event of a fire.

Peace of Mind

It gives you confidence that the system will function as intended.

Action

It's highly recommended to use UL 864 listed detectors and control equipment, even if not explicitly required by law. This demonstrates a commitment to safety and reduces potential risks and liability. Check with your insurance company and AHJ for their specific requirements.

In Summary


Legal requirements are heavily context-dependent. There is no automatic yes or no answer.2. Risk Assessment is Key

A thorough fire risk assessment is essential to determine the appropriate level of fire protection for the ASRS rack.3.

Consult with the AHJ

The local fire marshal or building inspector is the ultimate authority on code interpretation and enforcement. Contact them early in the design process to get their feedback.4.

Consider Insurance Requirements

Your insurance carrier may have stricter requirements than the minimum code requirements.5.

UL Listing is Highly Recommended

Even if not explicitly required by code, using UL 864 listed equipment is a best practice for safety and liability protection.

Recommendations



Engage a Fire Protection Engineer

Consider hiring a qualified fire protection engineer to conduct a risk assessment and design the fire protection system for the ASRS rack.

Document Everything

Keep detailed records of the risk assessment, design decisions, code interpretations, and consultations with the AHJ.

Err on the Side of Safety: When in doubt, choose the more conservative option that provides a higher level of fire protection. It's better to be over-prepared than under-prepared when it comes to fire safety.By following these steps, you can ensure that your TMS system meets all applicable legal requirements and provides adequate fire protection for the ASRS rack. Good luck! Flag for review