Test Procedures - Firex 2650-660 Product Overview

TEST PROCEDURES

OPERATIONAL TESTING
To determine the correct operation of the Firex Duct Smoke Detector, ensure power is connected and the green pilot LED is illuminated.
The LED on the detector head does not flash during the standby mode. The LED on the detector head will be permanently illuminated when smoke
is detected and the head is in alarm.
With the air handling unit shut down, and the clear cover removed, press and hold the test/reset button on the Firex Duct Unit. The red alarm LED
on the circuit board will be illuminated and the alarm relay outputs will change state. Using a multimeter set to OHMS (or continuity buzzer function
on the meter) place the meter probes on the following terminals and ensure the contacts are closed (continuity) 8, 9-11, 12 when releasing the
test/reset button these contacts will open.
The trouble contacts 13, 14, 15 will not change state in the event of a fire alarm, operational or functional testing. The trouble contacts can be tested
by rotating the Apollo detector head counter-clockwise and removing the detector head. This action will extinguish the pilot (green) LED and cause
the trouble contacts to change state, 13, 14 will be closed (continuity)14, 15 will be open circuit. Replacing the detector head and rotating it clockwise
until it locks, will cause the green pilot LED to be illuminated and the unit will be operational, terminals 13, 14 will be open circuit and 14, 15 will be
closed (continuity).
FUNCTIONAL TESTING
Once operational testing is concluded the unit requires functional testing to determine the correct operation of the detector head.
With the clear cover removed and using the aerosol test smoke Apollo test gas part # 29600-105 or Home Safeguard test gas part # RW-25S-TG
(Obtainable from Air Products and Controls Inc.) Spray the test gas directly at the detector head from a distance of 12 inches for at least 2 seconds.
CAUTION SPRAYING FROM A DISTANCE CLOSER THAN 12 INCHES CAN CAUSE DETECTOR CONTAMINATION.
After 15 to 20 seconds the detector head will go into alarm, illuminating the detector head LED and causing the duct unit functions to operate, relays
will change state and the remote accessories if attached will function.
If no test gas is available to conduct the testing, blow smoke from a cotton wick or punk directly at the head to cause alarm. The alarm indicator will
illuminate within one minute.
Should testing be required for simulated fire conditions, smoke bombs placed in the duct may not be suited for the particular detector head selected
and installed.
S60A Ionization Detector Head 2850 - 250 utilizes a radio active source as its means of detection and will detect smoke particles of between .1 and
1 micron in size.
S60A Photoelectric Detector Head 2850 - 350 operates on the principle of light scatter and will detect smoke particles of between 1 and 10 microns
in size.
When purchasing smoke bombs for functional testing, ensure smoke particle sizes comply with the criteria as described above.
MAINTENANCE
Each installation location must be assessed on its own merits. If the protected area is of a very dirty nature then the Firex Duct units will have to be
checked and cleaned on a Quarterly basis or when cleaning is required.
As a guideline the detector head should be cleaned every six months or as required.
The best methods of cleaning are to vacuum the detector head thoroughly or to blow the detector head out using compressed air.
Do not use chemicals to clean the detector head housing as this could contaminate the detector head and damage the casing.
Sensing tubes must be inspected and cleaned in accordance with the schedule as determined above, to allow the free flow of air through the sensing
tube.
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