Vedard Security Alarm Technical Support

FT-143 is 4 wire relay contact output home security fire detection sensor. It has EN54-7 Smoke Heat Sensor Fire security ceritificate. Smoke and heat is the main factors of early fire. So, smoke and heat detector should be used for hotel security, home security, community security. All fire detection sensors should be cleaned at least once a year.
The detector is photo-electronic detector uses a state of the art optical sensing chamber. This detector is designed to provide open area protection and to be used with most security alarm control panel. Professional design of fire detection system with 2 LEDs on each detector to provide local 360° visible alarm indication.
Heat sensor combined for a fixed 57°C (135°F) and above temperature alarm. So, the compound smoke heat detector can sense both Smoldering fire and flammable fire.
9 to 28 VDC Volts Non-polarize power supply enables it to connect to fire alarm control panel or home burglar alarm control panel.
SMOKE SENSOR TESTING (only for smoke detector and smoke & heat detector)
Allow smoke from a cotton wick or a test smoke aerosol to enter the detector-sensing chamber for at least 10 seconds. When sufficient smoke has entered the chamber, the detector will signal an alarm, this being visible by a continuous illumination of the LED. Reset each detector and/or control panel before attempting to test any additional detectors in the same zone. If the alarm fails in this step, it indicates a defective unit, which
requires service.
HEAT SENSOR TESTING (only for heat detector and smoke & heat detector)
A hair dryer of 1000-1500 watts should be used to test the heat sensor. Direct the heat toward the heat sensor, holding the heat source approximately 12 inches from the detector in order to avoid damaging the plastic housing.
The detector will reset only after it has had sufficient time to cool.
A sensor that fails any of these tests should be cleaned as described under MAINTENANCE, and retested. If the sensor fails after cleaning, it must be replaced. When testing is complete, restore the system to normal operation and notify the proper authorities that the system is back in operation.
5. MAINTENANCE
Before removing the detector, notify the proper authorities that the smoke detector system is undergoing maintenance and will be temporarily out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms.
1. Remove the detector to be cleaned from the system.
2. Remove the detector cover by pressing firmly on each of the four removal tabs that hold the cover in place.
3. Vacuum the screen carefully without removing it. If further cleaning is required continue with Step 4, otherwise skip to Step 7.
4. Remove the chamber cover/screen assembly by pulling it straight out.
5. Use a vacuum cleaner or compressed air to remove dust and debris from the sensing chamber.
6. Reinstall the chamber cover/screen assembly by sliding the edge over the sensing chamber. Turn until it is firmly in place.
7. Replace the cover using the LEDs to align the cover and then gently pushing it until it locks into place. Make sure that the thermistors do not become bent under the cover.
8. Reinstall the detector.
9. Test the detector as described in TESTING.
10. Reconnect disabled circuits.
11. Notify the proper authorities that the system is back on

Installation of 4-wire smoke heat detector
All wiring must conform to applicable local codes, ordinances and regulations.
Install the detector base
1. Open area smoke or heat detectors are intended for mounting on a ceiling or a wall in accordance with the fire standard in your country.
2. Attach mounting base to ceiling or wall. The base of the detector can be mounted directly onto an electrical junction box such as an octagonal (75mm, 90mm or 100mm), a round (75mm), or a square (100mm) box without using any type of mechanical adapter.
3. Position all wires flat against terminals, and fasten the wires on the terminals.
Install the detector head
1. Align detector head alignment mark line with the base's alignment mark line.
2. Push the detector head into the base while turning it clockwise to secure it in place.
3. Do not install the detector head until the area is thoroughly cleaned of construction debris, dusts etc.
4. After all detectors have been installed, apply power to the control panel.
5. Test the detector as described in the testing section in the manual.
6. Notify the proper authorities that the system is in operation.
ADJUSTING THE RELAY FOR NO/NC
The default condition for the relay is “normally open” (NO).
1. To adjust the normal condition of the relay to “normally closed” (NC), use a flat head screwdriver to open the detector head form the bottom.
2. There is a jumper head next to the relay on the PCB. Remove the jumper head and reinsert it in the NC position.
3. Carefully reinstall the head front cover.
4. TESTING
Before testing, notify the proper authorities that the smoke/heat detector system is undergoing maintenance and will temporarily be out of service. Disable the zone or system undergoing maintenance to prevent unwanted alarms. Detectors must be tested after installation and as part of periodic maintenance.
NOTE:
1. Before testing the detector, check to ensure the LEDs blink. If they do not, the detector has lost power (check the wiring), it is defective (return it for repair), or the detector sensitivity is outside the listed limits.
2. All the alarm signal services, releasing device and extinguisher system should be disengaged during the test period and must be re-engaged immediately at the conclusion of testing.
3. After energizing the detector head for approximately one minute, check to see the indicator LED flashing once every 6 seconds. If the LED fails to flash, it indicates the non-functioning of the detector or faulty wiring. Re-check the wiring or replace the detector if necessary.
SMOKE SENSOR TESTING (only for smoke detector and smoke & heat detector)
Allow smoke from a cotton wick or a test smoke aerosol to enter the detector-sensing chamber for at least 10 seconds. When sufficient smoke has entered the chamber, the detector will signal an alarm, this being visible by a continuous illumination of the LED. Reset each detector and/or control panel before attempting to test any additional detectors in the same zone. If the alarm fails in this step, it indicates a defective unit, which
requires service.