Swegon TBLZ-1-72-a GOLD User manual

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GB.TBLZ172.190411
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Installation instructions for the optical detector with built-in
control unit, TBLZ-1-72-a
GOLD/COMPACT
1. General
The TBLZ-1-72-a optical smoke detector with built-in control unit
is used for measuring smoke gases in ventilation ducts.
It consists of an optical detector mounted in an adapter system
in which both the tube and enclosure are designed for optimum
airflow through the detector. The system meets all fire safety
requirements at air speeds between 0.2m/s and 20m/s. The smoke
detector also has a built-in control unit for controlling fans, fire
and combustion gas dampers.
Accessories
Use an installation bracket when installing on circular or insulated
ducts.
2. Function
A green LED is lit on the control unit's circuit card when the unit is
operating in the normal mode. All the relays are activated.
When combustion gas is detected, a red LED lights up on the
circuit card and detector.
If the smoke detector becomes dirty, it becomes more sensitive
and slowly switches to alarm mode. To prevent false alarms if dirty,
the detector is equipped with a service alarm (green LED on the
smoke detector and yellow LED on the circuit card of the control
unit). This indicates that the detector requires cleaning.
If a malfunction arises, the green LED will be off and no relays
will be activated. Example: If the smoke detector is removed or a
power failure occurs.
A tripped alarm can be reset on the rear side of the smoke detec-
tor. See illustration.
3. Technical Data
Type of detector Optical
Operating voltage 24 V AC/DC +/- 10%
Power consumption:
Operation About 165 mA
Ambient temperature -10°C to +55°C
Atmospheric humidity Max. 99% rH
Enclosure class IP54
Tested and passed To VdS
Dimensions
Venturi tube length of 600 mm or 1500 mm.
(All dimensions are given in mm)
4. Maintenance
When the smoke detector becomes dirty, it becomes more
sensitive and may trigger the service alarm. This can be delayed by
vacuuming the detector once a year.
Reset button

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5. Installation and location
Position the smoke detector in the direction of flow, according
to the arrow on the cover. The smoke detector is location-
independent and can be installed on any side of the duct.
In the event of large temperature differences, e.g. outside or in
cold attics, the detector must be insulated from the surrounding
air (due to the risk of condensation build-up in the detector
housing).
To ensure optimum combustion gas detection the smoke detector
must be positioned so that the distance to the nearest interfering
source in the duct (see example of interfering sources below),
in the direction of airflow, is the same as 3 x the duct’s hydraulic
diameter. Nearest location after an interfering source must be at
least 5 x the duct’s hydraulic diameter.
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 5xdh
GX
MIN 3xdh
GX
MIN 5xdh
GX
MIN 3xdh
GX
GX
MIN 3xdh
GX
GX
MIN 3xdh
MIN 5xdh
d = D
Ø D
h
d =
h
2xHxB
H+B H
B
Hydraulic diameter
CIRCULAR DUCT
RECTANGULAR DUCT
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 3xdhMIN 5xdh
GX GX
MIN 5xdh
GX
MIN 3xdh
GX
MIN 5xdh
GX
MIN 3xdh
GX
GX
MIN 3xdh
GX
GX
MIN 3xdh
MIN 5xdh
d = D
Ø D
h
d =
h
2xHxB
H+B H
B
Examples of sources of disturbance
FAN
DAMPER
SILENCER COIL
BEND
BRANCH
ADAPTER EXTRACT AIR
SUPPLY AIR
AIR HANDLING UNIT

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GB.TBLZ172.190411
• Open the cover above the junction hood by lifting the catch.
• Insert the cable through any cable grommet.
When using another type of grommet, remove them premounted
by first pressing through one side and then through the other
(1-2).
• Connect the cables according to the wiring diagram in Section 6.
1
2
Drill holes in the duct.
• Make holes without 38 mm installation bracket.
• Make holes with 51 mm installation bracket (see
point 9).
3
Do not cut this end!
• Measure the ventilation duct.
• Cut the tube.
• The tubes must cover at least 90% of the duct’s width.
Detectors with venturi tubes of 600 mm are intended for ducts
with a max. duct width of 600 mm.
• Insert the end plug.
• Insert the seal onto the tube.
• Insert the tube into the bottom of the detector box.
• Lock the tube using the stop screw
4
• Install the tube and detector on the duct.
• Secure the detector box at 3 points at the markings of the
arrows.
Important! IMPORTANT!
The direction arrows (see the shape of the detector’s base or the top
of the housing) must point in the same direction as the air flow in
the duct.
End plug
Stop screw
Seal
5Flow indicator.
The detector is equipped with an indicator, a red plastic
tab, which, when the detector is correctly installed,
swings out due to the air flow.
6Electrical installation.
Important!
If the indicator does not
move, consider moving
the detector or install a
fan tube.
Flow indicator
Venturi tube with auxiliary fan
7Performance checks.
Check the detector using the smoke detector tester in
spray form.
• Move the "test hole plug" to the side
and then quickly spray.
In the event of a tripped alarm, the
LED shines red on the circuit board and
the detector. In the event of a tripped
service alarm, the LED shines green on
the detector and yellow on the circuit
board.
• Reinstall the test hole plug.
Important!
Do NOT drill holes for signs or similar in the plastic cover. This can
cause leakage that seriously affects the function of the detector.

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Installation bracket TBLZ-1-53 for circular ducts or
insulated flat ducts.
The duct diameter can be as small as 100 mm using
the bracket.
• Check that the direction of the arrows is towards the direction of flow.
• Check that the plug for the test hole is properly installed.
• Check that the flow indicator shows flow (rocks).
• Full scale tests with smoke generator are recommended to check the function.
Troubleshooting.
The smoke detector deploys without any smoke
present.
• The smoke detector is faulty, dirty or positioned so that con-
densation can build up, see point 8. The detector insert must be
replaced.
10
8
9
The installation bracket is supplied flat.
The installation bracket is easy to
bend/shape so that it fits circular or
flat ducts.
Secure the bracket’s
legs to the duct.
Hole ø 51
mm.
Rubber
seal
Circular duct. Insulated flat duct.
Rubber
seal
Final checks
Installing different tubes in different duct widths.
Venturi tube 600 mm. Venturi tube 1200 mm.
Hole
ø 38 mm
Hole
ø 38 mm
Cut the venturi
tube to the correct
length
The Venturi tube
must go through
the entire duct.
Important!
Hole ø 51 mm
Max. tube of 30 mm outside the duct.
For ducts less than 600 mm use ven-
turi tube of 600 mm, standard.
For ducts between 600 mm and 1400
mm, use venturi tube of 1500 mm.
• Cut the tube to the
correct length.
• Insert the end plug.
• Install the seal
• Install rubber seal TET
26-35 as a bearing.

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GB.TBLZ172.190411
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7
11
2
7
8
9
10
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4
5
2
3
4
5
6
1
2
5
6
8
9
3
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9 (G)
10 (G0)
6. Electrical connections
The electrical connections should be wired by a qualified
electrician in accordance with local electrical safety regulations.
Smoke detector, supervisory unit
SMOKE FUNCTION
Wiring terminals on the
control unit and on the
electrical equipm.
cubicle.
Ext. fire alarm 1
Ext. alarm 2
Function:
If the smoke detector in the duct trips, the alarm is forwarded to
GOLD/COMPACT, external fire alarm.
When the smoke detectors become dirty, a service alarm is
initiated and is forwarded to GOLD/COMPACT via the external
alarm 2.
Alarms can be reset on the smoke detector and in the hand-held
micro terminal.
Wiring terminals on the
control unit
Power supply: 24V AC/DC
Smoke alarm relay
NO Smoke alarm relay
C Free change-over contact
NC Max. 250V. 5A.
C
NC
GOLD
COMPACT
***Ext. fire alarm 2
* Should be selected for ext. fire
alarm in the micro terminal.
** Should be selected for ext. alarm
in the micro terminal.
*** Alternative connections
* DI-1
**DI-2
Wiring terminals on the
IQnomic+ module
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
Function selector switch set to position 0.

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