Regin SDD-OE65-R Manuel D'instructions

INSTRUCTION
EN
SDD-OE65-R
i
Read this instruction before installation
and wiring of the product
Optical smoke detector for duct mounting
SDD-OE65-R is an optical smoke detector for smoke detection in
ventilation systems. It has a relay output for smoke alarm indication in
applications where a local alarm output is desired.
The detector is intended to be connected to Regin's control units
ABV-300/D or ABV24-300/D. The control units supply power to the
connected detectors and forward alarms. One control unit can be
used to monitor multiple detectors. However, only one SDD-OE65-R
model can be connected per control unit.
SDD-OE65-R can also be used without a control unit.
Installation
Make a 30 mm hole at a suitable location on the duct. The unit should
be mounted at least 3 duct diameters away from bends, air intakes or
other sources of disturbance to the airflow in the duct.
Remove the enclosure lid and remove the detector head which is
bayonet mounted. Mount the venturi tube by removing the screw from
the tube's unclosed end, stick the end of the tube into the hole in the
bottom of the enclosure with the holes in the tube aligned with the
enclosure's longitudinal axis. Fasten the screw through the hole in the
PC-board. Replace the detector head.
For round ducts and for insulated ducts special mounting brackets are
available as an extra accessory.
To shorten the venturi tube remove the endplate and gasket from the
tube's outer end, shorten the tube making sure to cut it at right angles and
remount gasket and plate.
Temporarily replace the lid oriented so that the LED on the detector head
is visible through the window.
Put the tube through the hole in the duct, orient the unit so that the ar-
rows on the lid point in the flow direction and fasten the unit to the duct
using the mounting "wings". For round ducts the wings can be bent to fit
the duct curvature.
Flow
Wiring
Control unit
Wire the detector according to figure 1.
The detector is wired to the control unit through a two-wire current loop. If
the loop includes more than one detector, interconnect the units according
to the figure. The loop is closed by connecting the supplied 2.2 kOhm
end resistor between terminals 1 and 5. The end resistor should only be
mounted in the last detector in the loop. If the loop lacks an end resistor or
if there are more than one resistors, the control unit will give an alarm.
A loop may not contain more than one SDD-OE65-R.
Alarm relay
2 A 24 V AC. Single pole, voltage free, change-over relay
Terminal 6 Normally closed
Terminal 7 Common
Terminal 8 Normally open
Supply voltage without control unit (figure 2)
24 V DC
Terminal 1 -
Terminal 2 +
Termination resistor should not be mounted in this application.
N.B. When using the SDD-OE65-R without control unit there will be no
alarm function in the event of power loss.
SDD-OE65-R
7 1
1 SDD-OE65-R
8 2
2
ABV...
3
9 3
4
10 4
5
11 5
12 6
6
7
Relay drawn in
8
alarm position
1 SDD-OE65
2
3
2,2 kOhm
4
5
Figure 1
-
SDD-OE65-R
1
24 V DC
+
2
3
4
5
6
Relay drawn in
7
alarm position
8
Figure 2
Function indicators
Flow indicator
The unit has a built-in flow detector, a red plastic strip placed across
the fresh air inlet. When the unit is functioning correctly the incoming
airflow will bend the strip slightly, thus indicating that there is a flow
through the housing.
Smoke alarm
The detector head has a built-in LED for alarm indication. The LED is
normally extinguished but will light up red at a smoke alarm. Simultan-
eously the alarm relay is activated.
Function test
The housing has a hole with a red plastic plug to simplify testing with
test gas. Avoid spraying gas directly onto the detector head and only
use small amounts at a time to avoid unnecessary contamination of
the detector.
Maintenance
The detector should be tested and cleaned on a yearly basis to
ensure proper function. Cleaning of the venturi tubes, the housing and
the outside of the detector head can be done using a vacuum cleaner.
1