Smoke Detector Origin China

Smoke Detector Specification:
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A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:
1. System Sensor
2. Approved Equal
B: Approving Agencies and Standards by the following:
• U.L. Standard 268A, Standard for Smoke Detectors for Duct Applications
• NFPA Standard 90A, Installation of Air Conditioning and Ventilating Systems
• NFPA 90A3, “Standard for the Installation of Air Conditioning and Ventilating Systems”
• NFPA 92A, Recommended Practice for Smoke Control Systems
• NFPA Standard 72, National Fire Alarm Code
• NFPA Standard 101, Life Safety Code
• ASHRAE Handbook and Product Directory, “Fire and Smoke Control”
• or latest standard.
C: Proof of Compliance By means of the following:
1. Product label indicating at a minimum; manufacturer’s name and model number; date of manufacture; UL file number and logo; and NYC MEA number
D: All Model numbers from the manufacturer must be listed and approved with the UL and listed in the UL Online Certifications Directory for that manufacturer.
Product description:
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1. The detector housing shall be UL listed per UL 268A specifically for use in air handling systems. The detector shall operate at air velocities of 100 feet per minute to 4000 feet per minute (0.5 to 20.32 m/sec.).
2. The unit shall be capable of controlling up to ten (10) air handling systems when interconnected with other detectors.
3. The detector shall be capable of providing a trouble signal in the event that the front cover is removed.
4. It shall be capable of local testing via magnetic switch or remote testing
5. The unit shall be reset by local reset button or remote test station.
6. The duct smoke detector housing shall incorporate an airtight smoke chamber in compliance with UL 268A, Standard for Smoke Detectors for Duct Applications. The housing shall be capable of mounting to either rectangular or round ducts without adapter brackets.
7. An integral filter system shall be included to reduce dust and residue effects on detector and housing, thereby reducing maintenance and servicing.
8. Sampling tubes shall either be telescoping or be easily installed by passing through the duct housing after the housing is mounted to the duct.
9. The unit shall provide a spacial separation of no less than 1⁄4˝ (6.4 mm) and/or a physical barrier between the high and low voltage terminals. The enclosure shall meet all applicable NEC and NFPA standards regarding electrical junction boxes. Terminal connections shall be of the strip and clamp method suitable for 12–18 AWG wiring.
F. General installation requirements
1. Smoke detectors shall be located:
• Downstream of the air filters and ahead of any branch connections in air supply systems having a capacity greater than 2,000 cfm (944 L/sec).
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Dhaka Safety International Ltd
Paltan Branch
Shop# C6, New super market
Baitul Mokarram Dhaka-1000
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Corporate Office & Show Room
Hazi Ashraf Shopping Complex 2nd floor
Hemayetpur, Savar, Dhaka-1243
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