Hochiki FIRElink-400CM - Manual (Page 57)

FIRElink-400 Air Sampling System – Installation Manual Page 57 of 58
© 2010 Hochiki Europe (UK) Ltd 9-5-0-346/ISS4/OCT10
14 Do's and Don’ts
DO:
 Ensure that the ClassiFire alarm factor is appropriately set.
 Ensure that power and signal cables are correctly connected before powering up by use of cable
identifiers or electrical continuity checks. Incorrect connection could damage the detector.
 Ensure that cable of an appropriate approved type is used for interconnection.
 Place sampling points so that the detector will be able to detect smoke at the earliest opportunity.
 Ensure that the detector exhaust is in an area with the same atmospheric pressure as the sampling
pipes, either by placing the detector physically in the protected area or by leading a pipe from the
detector exhaust to the protected area.
 Ensure that the environment of the protected area is within the environmental operating parameters
of the detector (temperature -10 to +60°C, (humidity 0-90%, non-condensing).
 Close unused pipe inlet ports on the detector to ensure optimal operation.
DON’T
 Forget to set the appropriate ClassiFire alarm factor for the area to be detected.
 Forget to set the Detector Address Switches correctly when used in a network.
 Site detectors in damp or exposed areas.
 Remove or connect boards when the detector is powered up.
 Connect internal 0 volt terminals to local earth.
 Attempt to re-use dust separator cartridges once removed.
 Attempt to adjust or alter detector settings other than via the user-programmable functions. In
particular, the setting up of the laser is a precision task, and once set up the potentiometers should
be left alone. If it is suspected that the laser focus has shifted (for example, after dropping the
detector), it should be returned to Hochiki Europe (UK) Limited for recalibration.
 Place the detector near high power RF sources.
 Place the detector so close to other equipment that there is insufficient room to access and change
the dust separator. See section 11 “Maintenance” on page 52.
 Use sampling pipe of less than 27mm outside diameter without a suitable 27mm pipe adapter.
 Use excessive force when fitting sampling pipes as this may damage the detector.