3. Push the intermediate plate together with cover
upward and hold firmly against the base plate.
GB.ELQZ504480.110202
Specifications are subject to alteration without notice.
www.swegon.com 1
Installation Instructions for theELQZ-2-504 Air Quality Sensor
GOLD/COMPACT
1. General
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 CO
2
measurements
guarantee the adequate supply of fresh air, and at the
same time keeps energy costs as low as possible.
2. Function
Demand Control
Set the air handling unit to “DEMAND REGULATION”
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 Mainte-
nance Instructions).
ReCO
2
Set the GOLD unit to ”CO
2
” 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 Mainte-
nance Instructions).
3. Mounting
Locate the sensor where the indoor climatic conditions are
typical for the premises. Avoid any spot where the sensor
would be exposed to direct draught or poor air mixture. We
advise locating the sensor at least 2 metres above the
floor to minimize the risk of physical damage or inaccurate
readings due to direct exposure to exhaled air. Access to
the sensor is needed for checking its function and servi-
cing only.
1. Route the cable to where the sensor is to be located.
The cable can be recessed in the wall or other surface and
should then be passed into the air quality sensor through
its bottom section. If the wire is surface-mounted, it can
be passed into the sensor through one of the knockout
lead-throughs in the top of the sensor.
2. Back off the screw and pull the top section straight
upward.
4. Bend the intermediate plate with cover obliquely
outward and detach it from the hooks. 1
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