Aspirator Replacement - Xtralis vesda LaserFOCUS VLF-500 Product Manual

LaserFOCUS VLF-500 Product Guide
Filter replacement steps
Ensure the detector remains powered up during filter replacement and a new filter cartridge is
available:
1. Push in the security tab and lift up the field service access door (A).
2. Set the detector to 'Standby' mode by pressing the Disable button for 6 seconds. The
Disabled LED begins to flash. After releasing the Disable button the disabled LED will
slowly flash.
3. Undo the recessed retaining screw (C) and pull out the old filter (B).
4. Using your finger, firmly press the filter switch (D) (in the filter recess of the detector) 5 times
within 5 seconds to confirm to the detector that a new filter is about to be installed (see
inset). A LED next to the serial interface will flash each time you push the filter switch, and
will continue flashing once you have successfully pressed the switch 5 times in 5 seconds.
5. Insert the new filter (VSP-005) and tighten the retaining screw.
6. Press the Disable button for 6 seconds to return the detector to normal operation.
7. Record the filter replacement date on the filter.
8. Close the field service access door.
C
B

Aspirator replacement

Note: Prior to replacing the aspirator advise the monitoring authority that power will be
removed and the system disabled.
Caution: Electrostatic discharge precautions need to be taken prior to removing the front
cover from the detector otherwise damage may occur to the unit.
Aspirator removal (assumes normal mounting, see Figure 30):
1. Disconnect power to the detector.
2. Push in the security tab and lift up the field service access door.
3. Unscrew the two front cover retaining screws, lift and swing down the front cover.
4. Only disconnect the fan wiring loom from the connection point (E) at the aspirator.
5. Undo the retaining screw on the aspirator (A).
6. Swing out the aspirator, then lift and remove it from the detector.
40
A
D
Figure 29 - Filter replacement
VESDA
Legend
A Field service access door
B Dual stage air filter cartridge
C Retaining screw
D Filter switch
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