Technical Manual: ST-PY-AS - 000026 (Changes are subject to DCRN)
Section 4 - INSTALLATION
In normal use, the ST-PY-AS sensor will be installed at ceiling level.
Pass the field wiring through the cable hole in the centre and from
the rear of the base. Offer up and affix the base to the ceiling or
conduit fitting with screws via the base mounting holes. Connect
the field wiring to the base terminals, as detailed on page 8
making sure the wiring does not obstruct fitting of the sensor
head. Fit the sensor head by inserting it into the base and turning
clockwise until the notch in the sensor's rim aligns with base
locking screw. The OMNIVIEW
TM
360° LED alarm indicator permits
visibility from any angle.
Note: The address must be set before the sensor is fitted into place.
Fit the plastic dust cover supplied over the sensor to keep out dust
etc, until the system is commissioned. If the dust cover is not fitted
and the environment is slightly dusty, such as when building work is
being completed, for example, problems of false alarms are likely to
occur after commissioning unless cleaning of the sensor is
undertaken. At commissioning, the dust cover should be removed
and discarded.
NOTE: THE PLASTIC DUST COVER MUST BE REMOVED FROM THE
SENSOR IN ORDER FOR THE SENSOR TO FUNCTION CORRECTLY.
Section 5 - MAINTENANCE AND
CLEANING
Maintenance
The ST-PY-AS sensor is a high quality product engineered for
reliability. If proper preventative maintenance is not carried out,
there is a likelihood of malfunction, including false alarms.
Servicing:
Servicing of the system should be carried out in accordance with
the requirements of BS5839 Part 1, Fire Detection and Alarm
Systems for Buildings: Code of Practice for System Design,
Installation and Servicing.
NISM/STPYAS/02
Date:
16.04.09
Issue:
2
• sensortec • ST-PY-AS
• analogue addressable photoelectric sensor
instruction manual
sensortec
sensortec
3
