Honeywell LT-200 MI-FL20 Series Quick Installation Manual page 8

Fire alarm aspiration sensing technology
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5
10
4
ALARM
9
3
PREALARM
8
2
10
10
SMOKE
Password Sequence to Enter Maintenance Mode
7
1
LEVEL 2
9
9
6
INITIALIZATION
1) Press and hold RESET; Left flow indicator will turn
8
8
5
POWER
yellow, then green.
4
FAULT
7
7
2) Release RESET and FAULT indicator will switch on
3
6
6
2
green. The left flow indicator will blink green indicating
5
5
SMOKE
1
LEVEL 2
the device is ready for the first digit.
4
4
INITIALIZATION
3
3
POWER
FAULT
2
2
3) Press DISABLE to increment the LEDs 1...9.
SMOKE
1
1
LEVEL 2
INITIALIZATION
POWER
FAULT
4) Press TEST to select a digit.
5) The flashing airflow segment will turn solid green and
the next segment will begin to flash indicating set the
next digit.
6) When the 4th digit is selected, all 4 airflow segments
are turned off. If the password is accepted the
FAULT indicator will remain green and the unit enters
Maintenance mode. If the password is incorrect the
FAULT indicator flashes yellow and the unit remains in
Normal mode.
The Default Password is 3111.
If no button is pressed for 10s during the password sequence, the unit
returns to Normal mode.
Exit from Maintenance Mode
press the three front panel user interface buttons TEST, RESET and
DISABLE simultaneously for 2 seconds.
Alternatively, reset the unit using the Remote Input (when set to
default value) or power the device off and on again.
If there is no activity in Maintenance mode for 5 minutes (default), the
FAULT indicator blinks green for 15s and then the unit automatically
returns to the Normal state.
TESTING
Note that the sensor LEDs, which are under the control of the CIE (Fire
Panel), must be turned on to activate the front panel alarm indicators.
Magnet Test
The alarm signalling can be tested for functionality by placing a test
magnet in the position shown in Figure 9 (displayed earlier in the
guide). This method does not reflect EN54 standards and does not
test the air flow in the pipe-work.
Smoke Testing
The system alarm response can be tested for functionality using
smoke. The choice of smoke source is dependant on the installation
but in all cases the smoke must be present for the duration of the test.
Smoke pellets or matches can be used close to the sampling point to
introduce smoke particulates into the system. It is recommended that
smoke with a particulate life cycle of greater than 120s should be used
– standard aerosol sprays for point detector testing do not work well
on aspirated systems.
Fault Testing
Simulate a fault on the detector (for example, block the outlet pipe) and
check that a fault is signalled on both the front panel of the unit and at
the CIE (Fire Panel).
SERVICE
Isolate the aspirating detector from the fire alarm system to prevent any
unwanted alarms when opening the front door of the unit. Make sure
all power is removed from the system before removing any covers.
Service Mode
Opening the cabinet door during normal operation will cause the unit
to enter Service Mode. The FILTER LEDs will blink, the unit will switch
off power to the fans and stops communicating with the fire panel (the
M200-102-01
WARNING
smoke sensors continue to communicate with the panel). When the
cabinet door is closed, the unit restarts automatically.
Filters
Periodic cleaning or replacement of the filters will be required.
The filters are located inside the cabinet at the top of the unit (see
Figure 9 displayed earlier in the guide) and are removed as shown in
the sequence below:
1
F i lters
Either replace the filter assembly or carefully brush off the accumulated dust
Refit the filter, close and secure the cabinet door. The unit will initialise and r
3
Either replace the filter assembly or carefully brush off the accumulated
dust. (Replacement filter part number: FL-IF-6.)
Note: If replacing the filter, remove the foam gasket from the old filter
and place onto the new filter. When placing the new filter into the slot,
ensure that the gasket is correctly aligned.
Smoke Sensors
Refit the filter, close and secure the cabinet door. The unit will initialise
and restart.
Smoke Sensors
The smoke sensors are located under the sensor cover (see Figure
9 displayed earlier in the guide). To access the sensors, follow the
sequence below:
1
3
8
2
FOAM GASKET
2
I56-6576-001
4

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