CALECTRO UG-3-A4O UNIGUARD SUPERFLOW User manual

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UG-3-A4O UNIGUARD SUPERFLOW STAND-ALONE-UNIT 24V
Optical smoke detector with service alarm for duct installation.
CHARACTERISTICS
- Patented venturi pipe and duct housing
- One-pipe airsamplingsystemUniguardSuperflow
- New cross-section (shape) of the venturi pipe
gives an optimum of venturi effect
- Service alarm
- Test hole on cover
- Simple installation
- Sensitive flow indicator
- Simple service and maintenance
- Installer-friendly connectionof cables
- Foolproof installation of venturi pipe
FUNCTION
Uniguard has been developed to detect smoke in ventilation
ducts and combines a smoke detector and an adaptor system
where both tube and housing are specially designed for
optimum airflow through the smoke detector.
There is a built-in alarm relay to control fire-safety dampers,
to stop ventilation fans, or to activate accoustic and optical
alarms etc.
There is a built-in service alarm relay to let you know when
maintenanceis needed, before a false alarmoccurs.
The detector contains an intelligent controlling circuit. This
circuit is adjusting the sensitivity to give an optimal function
during the whole life time of the detector. When the controlling
circuit can no longer compensate for contamination, a service
alarm is indicated.
Uniguard Superflow has 4 premounted IP67 approved cable
entries with built-in cable anchorage for diameter 4-11 mm,
typeKlikseal.
The detector has a bayonet fitting to simplify mounting and
removal.
ACCESSORIES
Item code Designation
UG-MB Mounting bracket (for insulated/
circular ducts)
UG-COVER Waterproof housing (for mounting
outdoors, in cold attics etc.)
VR-0.6M Venturi pipe (length 0,6 m)
VR-1.5M Venturi pipe (length 1,5 m)
VR-2.8M Venturi pipe (length 2,8 m)
TECHNICAL DATA
Voltage Supply: 24V AC/DC ±10%
Detector type: Optical UG-3-A4O
Max. power consumption: 165 mA
Operating temperature: -10°C to +55°C
Maximum humidity: 99% rH
Duct air velocity range: Approx. 0,2 to 20 m/s
Approvals
UG-3-A4O: VdS (Germany)
Detector head: EN-54-7
Relay output: Potential free
Smoke alarm relays: Two changing contacts 250V, 5A
Service alarm: One breaking contact 250V, 5A
LED on smoke detector: Green - service alarm
Red - smoke alarm
LED on PCB: Green - normal operation
Yellow - service alarm
Red - smoke alarm
Adaptor housing: ABS
Protection: IP54
Air sampling tube: Aluminium.
Standard length 0,6 m. Hole diameter 38 mm.
The length of the venturi pipe shall be chosen based upon how
wide the ventilation duct is. The venturi pipes are available in 3
lengths; 0,6, 1,5 and 2,8 m. When the ventilation duct is wider
than 0,6 m (dia), the venturi pipe should penetrate the whole
duct. Please see below sketch.
Shorten the pipe to correct length.
Insert the end plug.
Put on the end plastic
gasket.
Put on the rubber
gasket, TET 26-35.
NOTE!
Drill a hole
Ø 51 mm.
Drill a hole
Ø 38 mm.
Drill a hole
Ø 38 mm.
Max diameter of the duct 0,6 m.
Use the venturi pipe 0,6 m.
Shorten the pipe, if necessary.
For ducts with a ø of less than 0,6 m use the 0,6 m pipe.
For ducts with a ø of between 0,6 m and 1,4 m use the 1,5 m pipe.
For ducts which are larger than 1,4 m use the 2,8 m pipe.
The venturi pipe shall not
protrude more than 30 mm
through the duct wall.
Diameter of the duct bigger
than 0,6 m.
The venturi pipe should
penetrate the whole duct.

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Failure: If there is something wrong with the
detector, the alarm relay will change
contacts:
a) When the detector module is removed
b) When the supply voltage is interrupted
DIMENSIONS
(mm)
WIRING DIAGRAM
Alarm relay:
TWO changing contacts, max 250V, 5A, each.
The relay outputs are shown in normal operation/power on
condition.
Alarm
output
Service
alarm
output
NO
NC
C
NC
C
6
7
8
Alarm
output
NO 3
4
5
NC
C
Supply 24 VADC (±10%)
1
2
9
10
UG-3-A4O UNIGUARD SUPERFLOW STAND-ALONE-UNIT 24V
Optical smoke detector with service alarm for duct installation.
BASIC PRINCIPLES FOR POSITIONING
For the airflow through the adaptor to be representative of the
airflow in the ventilation duct, install the detector at a place
where flow meters etc. normally are mounted, please see our
installation instructions.
You can also use your national or local rules for mountage
according to "Methods for measuring airflow in ventilation
systems".
INSTALLATION
The venturi pipe is made of aluminium and can easily be
shortened to suit the diameter of the duct. Hole diameter is 38
mm. For insulated or circular ducts - use the mounting bracket,
hole diameter is then 51 mm.
MAINTAINANCE
When the detector becomes contaminated, sensitivity is
increased, triggering the service alarm. This can be avoided
for a considerable time by cleaning the detector once a year
withavacuumcleaner.
AIR FLOW MONITORING
Thedetectorisfittedwith a redplastic switchtongue.Whenthe
detector is correctly installed, the tongue is bent outwards by
the air flow. The switch tongue provides a simple confirmation
that there is no leakage and that the air flow from the duct is in
fact flowing through the housing.
FUNCTION TEST
When installation is complete, the detector should be tested.
This can be carried out with smoke or suitable aerosol
testspray.
NB: When installing outdoors or in cold attics etc., where there
is a risk for condensation, the detector should be insulated
from the surrounding air with e.g. our weatherproof housing
UG-COVER. In such cases it should be marked with a sign
"HiddenDetector".
FUNCTION
Normal operation: In normal operation the alarm relay
is energized, and the relay contacts
are closed between C and NC.
Smoke alarm: The LED of the detector is showing
red light and the relay contacts are
changing to C and NO.
Reset: Press the reset button to reset the
detector into normal operation.
Service alarm: When the detector is sensing smoke or
is dirty the LED of the detector will first
show green colour before going into
alarm with red light. If the detector is
dirty, it will show green light. This is
an optical indication (a pre-alarm or
service-alarm) which means that the
detector is contaminated and if it is not
cleaned, it will give a false alarm later on.
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