Fire-Lite H355HT Intelligent Plug-In Temperature Sensors - Manual (Page 3)

B. Direct Heat Method (Hair dryer of 1000 – 1500 watts)
1. From the side of the detector, direct the heat toward the sensor. Hold the heat source about 6 inches (15 cm) away
to prevent damage to the cover during testing.
2. The LEDs on the detector should light when the temperature at the detector reaches the alarm setpoint. If the LEDs
fail to light, check the power to the detector and the wiring in the detector base.
3. Reset the detector at the system control panel.
Detectors that fail these tests should be cleaned as described under MAINTENANCE and retested. If the detectors still
fail these tests, they should be returned for repair.
Figure 3. Views showing position of test magnet.
F300-25-00 3 I56-1972-00R
LED
TEST MAGNET
MARKER
LED
TEST
MAGNET
MARKER
A78-1478-06
A78-1944-02
MAINTENANCE
NOTE: Before cleaning notify the proper authorities that the system is undergoing maintenance, and therefore the
system will temporarily be out of service. Disable the loop or system undergoing maintenance to prevent
unwanted alarms.
It is recommended that the sensor be removed from its mounting base for easier cleaning and that sensors be cleaned
at least once a year. Use a vacuum cleaner to remove dust from the sensing chamber.
Figure 4