Manual: EV-PYS Manual 000028 (Changes are subject to DCRN)
4
• Ref No: NISM/EV-PYS/02 • 19.02.19 • Issue: 2
• Evolution • EV-PYS • analogue addressable photoelectric sensor with integral sounder
Section 4 - INSTALLATION
In normal use, the
EV-PYS
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 9 making sure the wiring does not obstruct fitting of the
detector head. Fit the sensor head by inserting it into the base and turning
clockwise until the notch in the detector rim aligns with base locking screw.
The OMNIVIEW™ 360º 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
EV-PYS
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 BS 5839 Part 1, Fire Detection and Alarm
Systems for Buildings: Code of Practice for System Design,
Installation and Servicing.
