Edwards Heat Detectors: SIGA-HRS, SIGA-HFS & Fixed-Temperature Models
Overview
The Edwards heat detector line, including the SIGA-HRS and SIGA-HFS models, offers versatile solutions for fire detection in various environments. Heat detectors are critical in fire alarm systems where smoke detectors may not be suitable, such as in areas with high dust or vapor. The Edwards heat detectors provide reliable detection through advanced technology, ensuring safety and compliance with standards like UL 268 and FM.Detection Technologies
Edwards heat detectors utilize several detection technologies, including fixed-temperature and rate-of-rise mechanisms. The EDWARDS EST SIGA-HRS SMOKE INTELLIGENT DETECTOR NEW is a prime example of integrating intelligent heat detection with advanced algorithms to reduce false alarms. The Edwards SIGA-HFS model employs a combination of fixed temperature and rate-of-rise detection. The fixed temperature feature triggers an alarm when the heat detector reaches a predetermined temperature, typically 135°F (57°C). Meanwhile, the rate of rise function activates when there is a rapid increase in temperature, typically around 15°F per minute, which is indicative of a potential fire.Installation Considerations
Proper installation of Edwards heat detectors is crucial for optimal performance. These devices should be installed according to Class A or Class B wiring configurations, depending on the building's fire alarm system design. Class A wiring offers redundancy, ensuring the system remains operational even if a wire is broken, while Class B is simpler and more cost-effective, though it lacks the same level of redundancy. When installing heat detectors, ensure they are placed away from sources of false heat, such as HVAC vents or radiators, to prevent false alarms. The use of the Edwards Security Light Dock Base 101BS-E1 can simplify installation and provide secure mounting.Always verify the compatibility of the heat detector with the fire alarm control panel. Mismatched protocols, such as CLIP, IDNET, or SLC, can lead to communication errors and system failures.
Specifications
| Model | Detection Type | Temperature Rating | Protocol | Certifications |
|---|---|---|---|---|
| SIGA-HRS | Rate of Rise & Fixed Temperature | 135°F (57°C) | IDNET | UL 268, FM |
| SIGA-HFS | Fixed Temperature | 135°F (57°C) | CLIP | UL 268 |
Maintenance and Testing
Regular maintenance and testing are essential for ensuring the reliability of Edwards heat detectors. It is recommended that detectors be tested annually to verify their operational status. Testing can be performed using heat guns to simulate the heat conditions required to trigger the detectors.Document all maintenance and testing activities as part of your fire safety records. This documentation is crucial for compliance audits and can help identify patterns in detector performance.
FAQs
Rate of rise detectors trigger an alarm when there is a rapid increase in temperature, while fixed temperature detectors activate when a specific temperature threshold is reached.
Edwards heat detectors are versatile but should be selected based on environmental conditions. They are ideal for areas where smoke detectors are unsuitable, such as kitchens or garages.
Class A wiring is recommended for critical installations due to its redundancy, while Class B is suitable for less critical applications due to its simplicity and cost efficiency.
Edwards heat detectors should be tested annually to ensure they function correctly and to maintain compliance with safety standards.
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