TELEFIRE TFH-280A Addressable Heat Detector

Description

TELEFIRE TFH-280A Analog addressable heat detector

The TELEFIRE TFH-280A is an advanced analog addressable heat detector that combines two modes of operation: fixed temperature and rate of temperature rise detection. This versatile detector provides the perfect solution for locations where smoke detectors are unsuitable, particularly in areas subject to excessive fumes or steam, such as boiler rooms or kitchens. Equipped with a powerful microprocessor, it ensures accurate control of the heat sensing element, signal processing, and two-way communication between the detector and the control panel.

Key Features

Dual Operation Modes: The detector can operate in two different modes configurable from the control panel menu:

• Fixed Temperature Mode: Alarm point selectable between 50°C and 90°C in 1°C steps
• Combined Mode: Rate of temperature rise and fixed heat detection combined

Advanced Technological Solutions:

• Powerful microprocessor for precise control and communication
• Soft-set address programming without mechanical switches or moving parts
• 360° visibility alarm LED indication
• Thermistor-based temperature monitoring
• Integrated test and diagnostic circuit for efficient maintenance

Security and Maintenance Features:

• Anti-vandal feature to prevent rapid dismantling
• Secure body and base connection with concealed Allen screw
• Electronic address programming without moving parts

Technical Specifications

• Diameter: 101 mm (including base)
• Height: 52 mm (including TFB-180 base and LED)
• Weight: 106 g
• Operating Temperature Range: -10°C to +60°C
• Relative Humidity Range: 10% to 93% (non-condensing)
• Sensitivity Range (adjustable from control panel):

o            Rate of Rise Mode: 7°C/minute to 13°C/minute or 60°C fixed

o            Fixed Temperature Mode: 50°C to 90°C in 1°C increments

• Operating Voltage: 21V modulated (supplied by control panel via SLC)
• Current Consumption:

o            Quiescence mode: 200 µA

o            Alarm mode without auxiliary indicators: .6 mA

o            Alarm mode with 3 auxiliary indicators: 35 mA

Testing Capabilities

Local Testing: Apply a magnet to the side of the detector next to the LED for 3-5 seconds. This activates an internal testing circuit that simulates the presence of alarm temperature.

Remote Testing: From the control panel using the ADR-7000 Monitor option menu.

Certifications

• EN 54-5 Approved
• IS 1220 Approved
• GOST Compliant
• UL 521 Compliant
• CE Marked

Compatible Systems and Products

• Control Panels: ADR-7000, SAVER-7000, GUARD-7 analog addressable control panels
• Base: TFB-180 Standard Detector Base
• Auxiliary Indicators: TFL-1AN Auxiliary Signaling Indicator (up to 5 units can be connected)