6
©Firefly AB (Oktober 2016)
Installation
To ensure trouble-free operation and reliable fire protection, follow
these installation guidelines:
1 . Locate the detector(s) in an area where they will have an
unobstructed view of the area to be protected and where extraneous
sources of ultraviolet radiation will not affect the performance of the
fire detectors . These sources include but are not limited to, nuclear
radiation, x-rays, electrical corona, unshielded quartz halogen lamps,
and open flame sources such as gas fired heating equipment and
process burn off stacks . Prolonged exposure to a continuous source
of UV radiation will diminish false alarm discrimination . The detectors
must be accessible for cleaning . Failure to maintain clean sensor
windows, and self-test optics when so equipped, will impair the
performance of the detector . For compliance of an ATEX requirement,
ensure that there are no hazards in the area that could provide shocks
of energy to the windows greater than 2 .0 J .
2 . Separate the base from the housing by removing the four M8 x
1 .25 cap screws . This will require a 6mm hex key . Store the housing
assembly, containing the electronics, in a clean and dry environment,
while installing the base .
3 . Mount the detector base to a previously installed swivel mount
or other appropriate support structure so that the detector has an
unobstructed view of the area to be protected . Position the base such
that the conduit opening faces down . It will be necessary to seal the
conduit within 18 inches of the fire detector enclosure . This will insure
that water and airborne moisture do not enter the detector housing
through the conduit . Provide conduit drains as necessary to prevent
moisture from collecting inside the conduit .
4 . Determine the critical areas where fires are most likely to occur . Use
these areas as focal points for aiming the detectors . The detectors have
a conical field-of-vision as shown earlier in Figures 1 and 2 . The type of
fuel and the size of the fire will determine the range of detection .
Aim the detector at a point equal to or below horizontal, so that
water, dust and dirt will not accumulate on the optical surfaces of the
detector . As a general rule, mount the detector so that it will view the
base of the area to be protected .
5 . Complete the installation by wiring the detector according to the
wiring diagram located inside the rear cover . Before assembling the
detector housing to the base, verify that the terminal block assembly
is plugged in all the way and is located at the top . Insure that the wires
are arranged so as not to interfere with the main electronics module .
If a Torque wrench is available, it is recommended that the four cap
screws be tightened to a value of 35 to 40 in-lbs . (3 .95 to 4 .52 NM) .
Note:
The electronics module contains no re-useable parts . It should
never be removed from the housing assembly . This will result in the
voiding of the warranty .
6 . Use a 20 to 32 Vdc regulated and filtered power supply, with a ripple
not exceeding 1 percent . The detectors should be protected from
induced and transient voltages as well as radio frequency interference
(RFI) . To ensure compliance to CE requirements, a dedicated conduit is
highly recommended for the detector wiring . Connect every detector
housing to earth ground via an independent wire . In order to meet
EN 6100-4:1996 Conducted RF Immunity, 150 KHz-100 MHz, 80% AM
1 KHz Pulse, 10 VRMS requires a Corcom filter 15DCB6F or equivalent
connected to power lines .
Electronics
User Selectable Factory Settings
The electronic module has been factory configured to provide the user
with the following:
Time Delay:
(660/860) 3 Seconds (fire),
(860) 35 Seconds (UV or IR warning)
Sensitivity:
(860) Fire Event Analysis Level I, Industrial .
(660) Level 2, Normal
Relays: Fire
Normally Open, Latching .
Fault
Normally Open, (Relay is failsafe, it closes upon
application of power to detector), non-latching
(cleared after successful test) .
Optical Self-Test: Automatic (Only Self-Test Models)
0 to 20 mA
(660-0XXXX/860-XXXXX) “OFF”
RS485 (660/860) “OFF” — HI-Z mode
UV or IR Time
Delay
Fire Time
Delay
C31
C30
9
8
6
5
4
3
2
1
7
ON
1
2
3
1
2
3
1
12
13
24
Jumpers
Configuration
Switches
Fuse
(Fig 6) 660-0xxxx and 860-xxxxx user selectable options locations
(Fig 7) 660-1xxxx user selectable options locations
SPST dip switch (s1) located on board p/n 71043
Option
Off
On
Automatic & Manual Test Activated
1, 2
No Test Feature
1, 2
Manual Test Only
2
1
Automatic Test Only*
1
2
Industrial Applications*
3
Aircraft Hangar Applications
3
Fire Event Analysis Level I*
4
Fire Event Analysis Level II
4
IR/UV Alarm
5
DMLieferant
Тел
.: +7 (499) 990-05-50; +7 (800) 775-29-59 dmliefer.ru
