ELQZ5042480

ELQZ5042480
GB.ELQZ5042480.090815
Installation Instructions for the ELQZ-2-504 Air Quality Sensor
GOLD/COMPACT
1. General
Examples of sources of disturbance
MIN 3xdh
GX
GX
MIN 3xdh
The air quality sensor transmits a 0–10 V output signal
that is proportional to its working range of 500–1500
ppm. The output signal is linear with the CO2 content.
MIN 5xdh
MIN 3xdh
GX
MIN 5xdh
GX
GX
SILENCER
COIL
MIN 3xd h
GX
GX
Demand Control
MIN 5xdh
GX
BEND
GX
MIN 5xdh
GX
MIN 3xdh
BRANCH
MIN 3xdh
ReCO2
Set the GOLD unit to ”CO2” under the ”ReCO2” Function
menu (see the Operation and Maintenance Instructions).
Set the setpoint required as a percentage of the sensor’s
operating range.
If a setpoint of 1000 ppm is required, for instance, set
the setpoint to 50%. Enter the setting under the “FLOW/
PRESSURE” menu group (see the Operation and Maintenance Instructions).
GX
DAMPER
GX
2. Installation
MIN 5xdh
GX
FAN
1.2 Function
Set the air handling unit to “DEMAND CONTROL” under
the “FAN REGULATION” (CONTROL) function menu (see
the Operation and Maintenance Instructions).
Set the setpoint required as a percentage of the sensor’s
operating range.
If a setpoint of 1000 ppm is required, for instance, set
the setpoint to 50%. Enter the setting under the “FLOW/
PRESSURE” menu group (see the Operation and Maintenance Instructions).
MIN 5xdh
MIN 3xdh
MIN 3xdh
The carbon dioxide content of the indoor air is an effective
indicator of how many occupants are in a room and the
degree of ventilation required to maintain the air quality
we need. Ventilation control based on CO2 measurements
guarantee the adequate supply of fresh air, and at the
same time keeps energy costs as low as possible.
GX
MIN 3xdh
MIN 5xdh
GX
GX
GX
MIN 5xdh
ADAPTER
EXTRACT AIR
SUPPLY AIR
AIR HANDLING UNIT
2.2 Mounting
Install the sensor with the airflow direction arrow on its
cover pointing in the direction of airflow through the ducting. The sensor can be mounted on the side or top of the
duct for vertical or horizontal air flow.
If the ambient temperature varies radically, for example
outdoors or in cold attics, insulate the sensor to protect it
from the ambient air and prevent the formation of condensation inside the detector housing.
To ensure satisfactory function, the sensor should be
located at a distance, in the direction of airflow, that is
equivalent to at least 3 x the hydraulic diameter of the
duct upstream of the nearest source of disturbance in the
ducting (see the examples of sources of disturbance). If
it is located downstream of the nearest source of disturbance, its distance from this source should be equivalent
to at least 5 x the hydraulic diameter of the ducting.
Specifications are subject to alteration without notice.
Hydraulic diameter
CIRCULAR DUCT
dh = D
ØD
RECTANGULAR DUCT
dh =
2xHxB
H+B H
B
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GB.ELQZ5042480.090815
Point 1
• Drill an opening in the duct.
• 35 mm dia. opening for smoke detector without
mounting bracket.
• 50 mm dia. opening for smoke detector with moun
ting bracket (see point 8).
IMPORTANT!
The arrow on the plastic cover must point in the same
direction as that of the air flowing through the duct.
Point 2
• Measure the ventilation duct.
• Cut the tube to an appropriate length, if needed.
• The tube should penetrate 90% of the duct diameter
into the duct.
• Insert the end plug.
Do not cut
this end!
End plug.
Point 3
• Slip the seal onto the tube.
• Insert the tube in the bottom of the sensor housing.
Point 5 Electrical installation.
• Choose desired function by means of the jumper.
4- 20mA or 0- 10V.
• Connect the cables as shown on the wiring diagram.
• Lock the tube in
position by means of
the stop screw.
Outp. 1
Point 4
• Mount the tube and the sensor on the duct.
• Secure the sensor housing at the 3 points indicated by
the arrows.
20% 0%
Current
Voltage
Outp. 2
Jumper for a
0% or 20%
output signal
starting level
Current
Voltage
1
G+
24V AC/DC
2
G0
System earth
3
+ Out 1
CO2 (500-1500 ppm)
4
+ Out 2
Temperature (0-50°C)
5
M
Signal ground
6
C
Relay (option)
7
NO
Relay (option)
8
Jumper for selection
of output signal current or voltage
2
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Specifications are subject to alteration without notice.
GB.ELQZ5042480.090815
Point 6 Test of the detector
• Check the CO2 -detector by breathing on it.
Point 8
ELQZ-1-428-2-1 Mounting bracket for a circular duct or
an insulated rectangular duct.
The mounting bracket enables the detector to be installed
on a duct having a diameter as small as 100 mm.
The bracket is supplied completely flat.
Point 7
• Fitting of cover.
The bracket is easy to bend/form to fit on circular or flat
duct surfaces.
• Secure the cover.
Do not drill any holes in the cover for signs etc. Holes will
cause air leakages and seriously disturb the function of the
sensor.
Secure the legs
of the bracket to
the duct.
Opening: Ø
50 mm
Specifications are subject to alteration without notice.
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GB.ELQZ5042480.090815
Circular duct
Rubber seal
Insulated rectangular duct
Rubber seal
Point 9 Final inspection
Make sure that the arrow on the sensor cover points in the
direction of airflow.
Check that the cover and its gasket seals properly against
the base and that nothing is lodged in between them,
such as insulation.
4
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Specifications are subject to alteration without notice.
GB.ELQZ5042480.090815
2.3 Electrical Connections
A qualified electrician should wire electrical connections in
accordance with local regulations.
GOLD RX/PX/CX/SD
Demand Control
Air quality sensor
GOLD RX/PX/CX/SD
IQnomic control unit
Jumper for a 0% or 20% output
signal starting level
Outp. 2
Jumper for selection of output signal current or voltage
Outp. 1
20% 0%
Current
Voltage
Current
Voltage
1
G+
1
2
G0
2
3
+ Out 1
3
4
+ Out 2
5
M
6
C
7
NO
1
60 G+
2
61 G0
31
3
Supply air fan
33
A
31
8
3
33
Extract air fan
B
A = Control of supply air fan
B = Control of extract air fan
ReCO2
Air quality sensor
GOLD RX/CX
IQnomic control unit
Jumper for a 0% or 20%
output signal starting level
Outp. 1
Jumper for selection of output signal current or voltage
Current
Voltage
Outp. 2
20% 0%
Current
Voltage
Specifications are subject to alteration without notice.
1
G+
1
2
G0
2
3
+ Out 1
3
4
+ Out 2
5
M
6
C
7
NO
1
60 G
2
61 G0
IQnomic Plus
19
3
20
8
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GB.ELQZ5042480.090815
GOLD LP/COMPACT
Demand Control
Air quality sensor
GOLD LP/COMPACT
IQnomic control unit
Jumper for a 0% or 20% output signal starting level
Current
Voltage
Outp. 2
Jumper for selection of output signal current or voltage
Outp. 1
20% 0%
Current
Voltage
1
G+
1
2
G0
2
3
+ Out 1
3
4
+ Out 2
5
M
6
C
7
NO
1
9 G+
2
10 G0
35
37*
3
*Demand regulation (control) should
be selected for the one fan and slave
control should be selected to the other
fan if so desired.
8
3. Technical Data
4. Dimensions
Supply voltage
Frequency
Power consumed
Output signal
Measuring range
Accuracy
Venturi tube length 600 mm.
24 V AC ± 20%
50/60 Hz
3W
0–10 VDC
500–1500 ppm
± 1% of the measuring rang e
± 5% of the reading
Warm-up period < 1 min.
Response time
< 2 min.
Wiring nuts
for max. 1,5 mm²
Enclosure Class
IP 20
Operating temperature 0 till +50 °C
Storage temperature
-20 till +70°C
(All dimensions in mm)
6
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Specifications are subject to alteration without notice.
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