TFH-280A
© 2010
–
2012 Telefire Fire & Gas Detectors Ltd
Revision 1.01 January 2012
– Page 1 of 4 –
1
Introduction
Telefire's TFH-280A is an advanced Analog Addressable Heat Detector that combines
two modes of operation: fixed temperature and rate of temperature rise. It is compatible
with the ADR-3000 Analog Addressable Control Panel.
The detector contains a powerful microprocessor enabling accurate control of the heat
sensing element, signal processing and two-way communication between the detector
and the control panel.
The detector contains an alarm LED that has 360° visibility. This LED flickers during
normal operation and is on during an alarm.
Soft-set address – the detector’s address is programmed into its memory without the use
of mechanical switches or moving parts.
The detector monitors the temperature by using a thermistor that provides an output
proportional to the air temperature.
The TFH-280A heat detector can operate in either of two modes that can be configured
at the control panel via a menu:
•
Fixed Temperature Mode
– the alarm point is selected between 50°C – 90°C in
1°C steps (122°F to 194°F in 1.8°F increments).
•
Combined Mode
– Rate of Temperature Rise and Fixed heat detection. In this
mode the alarm threshold for the rate of temperature rise can be set between 7°C
/minute and 13°C /minute (12.6°F and 23.4°F) and the fixed temperature threshold
is 60°C (140°F).
The detector contains an alarm LED that has 360° visibility. This LED flashes during
normal operation and is latched on during an alarm.
2
Compatibility
2.1
Control Panels
The TFH-280A is compatible with Telefire's ADR-3000 Analog Addressable Control
Panel.
2.2
Bases
The TFH-280A is compatible with Telefire's TFB-180 Standard Detector Base.
!
Warning
Do not connect these detectors to control panels made by
manufacturers other than Telefire.
3
Installation
Planning of quantity and location of detectors shall be done according to the local codes
and regulations and in accordance to the planning consultant's requirements.
3.1
Pre-Installation Planning
3.1.1 Capacity Planning
Ensure that the total number of initiating devices (detectors, switches, call point, etc.)
does not exceed the maximum allowed per detection zone, floor area, or other
limitations as specified by the applicable standards and regulations. Ensure that the
ADR-3000 has an available address for each detector.
