enervent Svea eAir - Electrical Connection Requirements and Preparations

12
The electrical installation of ventilation units has to
be made by an authorized electrician.
NOTE
Electrical connection
requirements and preparations
See the electrical schematics at the end of this manual.
Preparing electrical work
Make sure before beginning the installation that:
• An appropriate main power connection is available for
use for the ventilation unit.
• Over 30mA residual current protection is in use.
Because of the residual current protection, no other
electric devices can be plugged in the socket.
• The user has an internet connection, if they want to
use the web interface of the eAir panel.
• The eAir panel wall mount is installed on a ush
mounting box. Keep the eAir panel wall mount
always installed when you use the eAir panel. If you
accidentally touch the circuit board behind the
wall mount with your hand or with an object that
can conduct electricity, the circuit board may be
damaged.
• The unit is connected to the control panel with a
cable. Cable must run in a protective pipe with a
minimum diameter of 20 mm. The unit delivery
includes a 10 m cable. The cable connections are type
RJ4P4C.
External sensors:
• Some ventilation unit models may require certain
external sensors to be installed.
• The sensor element of the temperature, humidity and
CO2 sensors must be installed inside the duct. Most
temperature sensors are delivered with a 5-meter long
connection cable. Humidity and CO2 sensors must be
wired locally.
• The location of the sensor is selected based on the
desired measurement. For more information, see
the control schematics at www.enervent.com. The
location has to be on a straight part of the duct, and
the placement must be at least twice the diameter of
the duct from the duct coils, turns, or joints.
• A hole must be drilled into the duct, for the sensor
and the grommet.
• The sensors connected to the cable are pushed
through a rubber grommet so that the sensor
element is a few centimeters inside the duct. The
rubber grommet must be airtight and tight enough
so that the sensor cable cannot slide through on its
own. It is recommended that the sensor is secured
with a cable tie.
• Sensors with sti pipe-like sensor elements are placed
in the duct with an attachable, adjustable ange. The
sensor element is pushed through the ange and
locked in place with a suitable screw.
• Electrical connections are done based on the
schematics at the end of this manual.
Preparing the eAir control panel wall
mount
eAir control panel wall mount must be installed on a ush
mounting box. One ventilation unit can be controlled by
no more than two panels. eAir panels can be installed on
dierent wall mounts or to the same wall mount. If the
panels are installed in the same wall mount, the other eAir
panel will need a separate micro USB charger (not part of
the Enervent unit delivery).
Commissioning two eAir control panels
installed in their own wall mounts.
If the ventilation unit is controlled with two control panels
mounted on dierent wall mounts, the panels must have
dierent addresses. The address is selected from the
rotary switch on the circuit board behind the wall mount.
One wall mount has address 1 and the other must have
address 2. We recommend marking the address both
on the wall mount and on the control panel so that the
inhabitants will know which panel belongs to which wall
mount.
Commissioning two eAir control panels
installed in the same wall mount
If the ventilation unit is controlled with two control
panels installed in the same wall mount, the extra panel
must be connected to the wall mount. Connecting is
done by sliding the DIP slide switch 2 down and then
up again. Check for more information from the electrical
schematic on page 53. Connection mode is active, when
the yellow LED light of the circuit board begins to ash.
The connecting mode stays active for 10 minutes. Put the
eAir control panel in the wall mount for a moment, so that