enervent Svea eAir User manual

Svea eAir
Installation instructions for the ventilation unit

22
Copyright © Enervent Zehnder 2022.
Luvaton kopiointi ja levitys on kielletty.
Otillåten kopiering och distribution är förbjuden.
Uautorisert kopiering og distribuering er forbudt.
Unauthorised copying and distribution is prohibited.
English s. 3

3Installation instructions for professionals 3
READ FIRST ................................................................................................................ 4
TYPE PLATE ................................................................................................................ 4
SAFETY .................................................................................................................... 5
General information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Electrical safety ........................................................................................................ 5
CONTENTS OF THE DELIVERY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Available accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
TECHNICAL SPECIFICATIONS OF THE UNIT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Duct connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Checking the handedness from the type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
BEFORE INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Choosing the installation location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Building a ventilation ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical connection requirements and preparations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
INSTALLATION ............................................................................................................16
Wall mounting .......................................................................................................17
Draining condensate water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Installing eAir control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Installation to a Modbus network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
General instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Using the eAir control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
COMMISSIONING .........................................................................................................27
Requirements.........................................................................................................27
Commissioning check list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Adjusting air ow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Control system and eAir control panel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Setup wizard..........................................................................................................31
Settings that are not dened in the setup wizard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Documenting the commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Troubleshooting..........................................................................................................42
EU-Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
PRODUCT INFORMATION ACCORDING TO EU KOMMISSION REGULATION (EU) N:O 1253/2014 JA 1254/2014 47
Energy label ..............................................................................................................48
APPENDICES..............................................................................................................50
Dimensional drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Technical dimensional drawing, 5-duct right-handed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Electrical diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Connections ......................................................................................................52
Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Record of measuring air amounts and sound levels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
CONTENTS

4
READ FIRST
This instruction manual is intended for all the persons
involved in the installation of the Enervent ventilation
units. Only qualied professionals may install the
equipment described in this manual in accordance with
the instructions in this manual and the local laws and
regulations. If the instructions provided in this manual are
not followed, the warranty for the equipment becomes
void and damages may be caused to persons or property.
The equipment described in this manual may not be
used by persons (including children) with reduced
physical, sensory or mental capacity or without sucient
experience or knowledge, unless a person responsible for
their safety is supervising and advising them in the use of
the equipment.
If you need technical support, please check the
equipment type and serial number from the type label.
If the delivery does not contain all of the
components listed in the section ‘Contents of
the delivery’, please check the order and contact
your distributor or Enervent before commencing
installation.
FOR YOUR INFORMATION
TYPE PLATE
IP 20
Type label
1234567890
Ventilation unit
TYPE:
W/ V/ HZ/ A: 1141/230,1~/50/6.1
www.enervent.com

5Installation instructions for professionals
SAFETY
General information Electrical safety
Always check that the supply voltage to the equipment
is switched o before opening the service hatch.
Only an authorised electrician may open the
electrical box.
Follow local regulations for electrical installations.
In case of a malfunction, always determine the
reason for the malfunction before restarting the unit.
When you have switched o the power to the
unit, wait for two (2) minutes before starting the
maintenance work. Even though the power is
switched o, the fans continue running and the post-
heating coil remains hot for a while.
Check that the unit is completely isolated from
the mains supply before conducting any voltage
tests, insulation resistance measurements or other
electrical work or measurements. Such work may
damage the sensitive electrical equipment.
Control equipment used in the ventilation units
may cause leakage current. This may aect the
operation of the residual current protection.
All ventilation units containing a control system
must be equipped with an overvoltage protector.
DANGER DANGER
DANGER
WARNING
WARNING CAUTION
CAUTION
CAUTION

6
CONTENTS OF THE DELIVERY
Product number Product name
K240130301 Range hood Standard Plus white
K240130201 Range hood Premium white
K580030015 eAir controller. The package contains a controller, wall mount and a 10-metre cable
K930030004 CO2carbon dioxide transmitter for the room 0–10 V/24 V
K930030006 %RH humidity transmitter 0–10 V/24 V
M230110002 Humidity transmitter duct mounted KLK100
K930030008 Overpressure push button ‘replace switch’/boost
K930030029 KNX bus adapter
K900010010 Water trap Enervent Salla
Available accessories
warranty and
maintenance manual
installation panel
installation
and operating
instructions
unit
eAir control panel
power cable

7Installation instructions for professionals
TECHNICAL SPECIFICATIONS OF THE UNIT
connection cable with plug
Width 600 mm
Depth 600 mm
Height 630 mm
Weight 65 kg
Duct connection (duct size) ø 160 mm
Range hood connection (duct size) CHC ø 100 mm
Fans supply 170 W, 1,35 A, extract 170 W, 1,35 A
Heat exchanger motor with thermal protection 5 W, 0,04 A
Power of electric post-heating coil in E-models 800 W / 230 V, 1~/50 Hz/ 3,48 A
Input power, E-model (post-heating coil) 1154 W / 230 V, 1~/50 Hz/ 6,2 A
Circuit breaker B10 A
Mains supply 230 V~, 50 Hz, 10 A
motherboard
type plate
inlets for external sensors
heat exchanger
heat exchanger drive belt
heat exchanger motor
supply fan
extract fan
extract lter
inlet lter
condensate connection
G1/4" internal thread
Right-handed CHC

8
Duct connections
Checking the handedness from the type plate
right-handed 5-duct
outdoor air
supply air
range hood
extract air
exhaust air
IP 44
Type label
1234567890
Ventilation unit
TYPE:
W/ V/ HZ/ A: 1141/230,1~/50/6.1
www.enervent.com
Svea eAir E
Right-handed 5-duct

9Installation instructions for professionals
BEFORE INSTALLATION
• Ensure that the ventilation system has been designed
and realised in accordance with the building
regulations.
• We recommend the unit to be installed in a technical
facility room.
• Do not install the unit in a room where the
temperature and humidity are high. Under certain
conditions, condensation may occur on the outer
surface of the unit.
• Take the noise level of the unit into account when
choosing the installation location.
• Install the unit on a soundproof wall, if possible.
• Do not install the ventilation unit directly outside
the bedroom, as the unit is never completely silent,
although it is quiet.
• Install an insulation plate behind the ventilation unit,
or try to prevent the sound from being conducted to
the structure by other means. Using soft foam sheets
is recommended (not included in the delivery).
• Ensure that connecting the condensation water
discharge pipe and water trap is possible. Remember
to take the space required by the condensation water
connection into account.
• Install the unit in a warm room (over +5°C).
• Ensure that at least 500 mm of free space is left in
front of and at least 80 mm of free space is left below
the unit for maintenance purposes.
Choosing the installation location
If you would like to know more about the
construction of ventilation systems and the
insulation of ventilation ducts, you can read about
them on our website at www.enervent.com.
WOULD YOU LIKE TO KNOW MORE?

10
Building a ventilation ductwork
Ventilation ducts must be closed until the
ventilation system is commissioned, so that warm
air does not ow into the ducts. Condensation
water is formed when warm air mixes with
cold outdoor air or the cold surface of the duct.
Shutdown prevents dirt and particles from
contaminating the system.
NOTE
Insulation of ventilation ducts
The ventilation ducts must be appropriately insulated.
Insulation is especially important, if the unit has a cooling
function.
Ventilation ducts must be insulated so that no water can
condense on the outer or inner surface of the duct under
any circumstances. Air must not cool or warm too much in
the ductwork due to external factors. Ventilation designer
will proportion the insulation on a case-by-case basis,
depending on the duct placements and temperatures.
Ventilation duct insulation in heating
Supply air duct from
ventilation unit to inlet
valve
Insulation must be planned and
implemented so that changes in
the temperature of airow are 1°C
at most.
Extract air duct from
extract valve to
ventilation unit
Insulation must be planned and
implemented so that changes in
the temperature of airow are 1°C
at most.
Insulation of ventilation ducts in cooling use
Supply air duct from
ventilation unit to inlet
valve
Insulation must be planned and
implemented so that changes
in the temperature of airow are
1°C at most. A cellular rubber
insulation with a thickness of at
least 19 mm is needed for the
surface of the duct, together with
a sucient additional insulation.
Extract air duct from
extract valve to
ventilation unit
Insulation must be planned and
implemented so that changes in
the temperature of airow are 1°C
at most.
Planning a ventilation ductwork is a task for professionals.
When building a ductwork, it is crucial to follow the
plan exactly. Following the plan ensures operationality
and customer satisfaction. The performance capacity
of the ventilation unit and its evaluated heating or
cooling power can be calculated with the Enervent
Energy Optimizer program on the Enervent website. We
recommend reading the planning guide on the Enervent
website for professionals.
• Type-approved, factory-made materials are used for
building a ductwork.
• The intended valves must be suitable for mechanical
ventilation.
• The outer louvre must not be covered with an anti-
insect netting, as it will impede with maintenance.
• Snow and rainwater must be prevented from entering
the outside and exhauts air ducts.
• The ductwork must have enough inspection hatches
through which the ducts can be cleaned.
• The locations of inspection hatches have to be marked
on the roof framework, for example, so that they are
easier to nd.
• Each re zone must have its own, separate ventilation
system. Dierent re zones are garage and living
quarters, for example. These dierent re zones cannot
share a ventilation system.
• The kitchen must have a range hood with its own fan
above the stove. The range hood must have its own
exhaust duct that goes straight out of the house. A
range hood without a motor can be connected to a
ventilation unit only if the unit has a connection for a
range hood.
• Cabinet dryers with integrated fan can be indirectly
connected to the extract valve with the dryer’s own
connecting system. A portion of extract air is taken
from the surrounding room and a portion from the
cabinet dryer. Extract air must ow through the valve
at a rate of 12 liters per second.
• Silencers are needed for supply and extract ducts, at
the very least.
• Silencers are dimensioned on a case-by-case basis.
• Installing automatically closing dampers in outdoor
and exhaust air ducts is recommended. In case of a
blackout, the dampers will close and prevent cold
air from entering the duct, which in turn prevents
any water coils from freezing. If cold air enters the
ventilation ductwork, condensation water can form
when cold air mixes with warm air.
• If the unit has a constant duct pressure control,
dierential pressure transmitters must be installed.

11Installation instructions for professionals
Half-warm space* can mean a lowered ceiling,
midsole, or casing.
NOTE
The duct coils to be installed in the ventilation
system must be insulated in the same way as the
ventilation ducts are. The ceiling mounting plate is
an optional extra sold separately.
NOTE
Outside air intake duct
(fresh air intake duct)
Cold space:
• 100 mm plate, mat or pipe insulation (+ additional
possible blown wool).
Warm/semi-warm* space and suspended ceilings,
intermediate oor and enclosures:
• Option 1: 80 mm insulation with vapour-tight surface
• Option 2: 19 mm cellular rubber insulation on the
surface of the duct and 50 mm insulation with a
vapour-tight surface.
Insulation must prevent the condensation of water
vapour on the outer surface of the duct. In summer it
must prevent the air from heating up too much.
Supply air duct
Cold/semi-warm* space and lowered ceilings,
intermediate oor and enclosures:
• In basic ventilation, the insulation must be planned
and implemented so that changes in the temperature
of airow are less than 1°C. It is possible to use 100
mm plate, mat or pipe insulation, for example (as well
as possible blown wool).
Warm space:
• Basic ventilation does not require insulation.
For heating and cooling uses, see tables “Insulating
ventilation ducts for heating” and “Insulating ventilation
ducts for cooling”.
Examples of ventilation duct insulation
Soundproong is not included in these insulation
instructions and examples.
Extract air duct
Warm space:
• Basic ventilation does not require insulation.
Cold/semi-warm* space:
• In basic ventilation, the insulation must be planned
and implemented so that changes in the temperature
of airow are less than 1°C. It is possible to use 100
mm plate, mat or pipe insulation, for example (as well
as possible blown wool).
If used for heating or cooling, see tables“Insulating
ventilation ducts for heating” and “Insulating ventilation
ducts for cooling”.
Exhaust air duct
Cold space:
• 100 mm plate, mat or pipe insulation
Warm/semi-warm* space:
• Option 1: 80 mm insulation with vapour-tight surface
• Option 2: 19 mm cellular rubber insulation on the
surface of the duct and 50 mm insulation with a
vapour-tight surface.
Insulation must prevent the condensation of water vapour
on the inner and outer surface.
* semi-warm space = +5... +15°C

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

13Installation instructions for professionals
Setup wizard needs to be run in only one of the
panels. Switch the power on in the other panel
once you have congured the settings. The panel
retrieves the information from the motherboard.
NOTE
the panel can start. Panel shows that it is trying to connect
to the network. Press Re-connect the radio > Reset. The
control panel connects itself to the wall mount.
Connecting the indoor temperature
sensor to the wall mount (extra)
An indoor temperature sensor must be connected to the
ventilation unit, if the ventilation unit is to be used for
controlling indoor temperature. The indoor temperature
sensor is connected to the circuit board behind the wall
mount. If two wall mounts with an indoor temperature
sensor are installed, sensor TE20 is connected to wall
mount 1 and sensor TE21 to wall mount 2.

14
The functions and extras listed in the following table may require external wiring or connecting to work.
Location on eAir
controller card
Voltage/current Cable example External wiring of
the ventilation unit
AI NTC
Room temperature sensor TE20/
TE21 Connector in the circuit board of the
eAir control panel
wall mount
3.3 VDC KLM 2X0.8 Yes
TE01 outside air temperature X1 3.3 VDC Quick connector
cable 5 m,
delivered with
the unit
Yes, if pre-heater/
pre-cooler (CHG)
TE10 supply air temperature X3 3.3 VDC Quick connector
cable 5 m,
delivered with
the unit
Yes, if duct heating/
cooling coil
TE62 liquid line of a supply air
coil (-X) X5 3.3 VDC Quick connector cable 5 m,
delivered with
the unit
Yes, if DX duct coil
TE62 (-X)
TE45 temperature of return
water in heating coil X12 3.3 VDC Quick connector cable 5 m,
delivered with
the unit
Yes, if water heating
coil in the duct
Digital outputs (DO) Potential-free contact
On/O control of heating DO2 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
MMJ 3x1.5 Yes, if water heating
On/O control of cooling /
On/O control of heating
(heatpump models)
DO3 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
MMJ 3x1.5 Yes, except if HP and
CO
On/O control of dampers
Svea On/O control
evaporationheater
DO5 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
MMJ 3x1.5 Yes if dampers
On/O control of pre-heating /
On/O control of pre-cooling /
On/O control of water heating
coil circulating pump (Aqua
KIW)
DO6 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
MMJ 3x1.5 Yes, except if Twin
Tropic or built-in
pre-heating coil
Timer-controlled relay /
accumulator charge pump
on/o control PU80 (Aqua)
/ exhaust air cooling on/o
control (TCG)
DO7 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
MMJ 3x1.5 Yes
A/AB alarm output, closing DO8 Max. 250 VAC / 50 VDC
8 A / 2 A inductive
load
KLM 2x0.8 Yes
Analog inputs (AI)
%RH1 AI1 (user-dened) 0–10 VDC KLM 4x0.8 Yes
%RH2 / temperature of water
heater TE80 (Aqua) AI2 (user-dened) 0–10 VDC KLM 4x0.8 Yes
Free / PDE10 supply air duct
pressure AI3 (user-dened) 0–10 VDC KLM 4x0.8 Yes
Free / PDE30 exhaust air duct
pressure AI4 (user-dened) 0–10 VDC KLM 4x0.8 Yes
CO2/1 AI5 (user-dened) 0–10 VDC KLM 4x0.8 Yes
CO2/2 AI6 (user-dened) 0–10 VDC KLM 4x0.8 Yes
RH10 supply air relative humidity
sensor (Dehum/Twin Tropic/
TCG)
AI11
(program-dened) 0–10 VDC KLM 4x0.8 Yes, if duct coil
TE10 supply air temperature
(Dehum/Twin Tropic/TCG) AI12 (program-dened) 0–10 VDC KLM 4x0.8 Yes, if duct coil

15Installation instructions for professionals
Location on eAir
controller card
Voltage/current Cable example External wiring of
the ventilation unit
Free AI13
(program-dened) 0–10 VDC KLM 4x0.8
Free AI14
(program-dened) 0–10 VDC KLM 4x0.8
Free AI15
(program-dened) 0–10 VDC KLM 4x0.8
Free AI16
(program-dened) 0–10 VDC KLM 4x0.8
Analog outputs (AO)
Cooling control voltage /
additional post-heating control
voltage (heatpump models)
AO3 0-10 VDC 10 mA KLM 2x0.8 Yes, except if in-built
coil
Heating control voltage /
compressor power control
voltage (heatpump models)
AO5 0-10 VDC 10 mA KLM 2x0.8 Yes, if -X or water
heating
Pre-heating control voltage /
pre-cooling control voltage
(CHG) / HRW n:o 2 control
voltage (Twin Tropic)
AO6 0-10 VDC 10 mA KLM 2x0.8 Yes, CHG
Exhaust air pre-heating control
voltage (HP) / exhaust air
dehumidifying control voltage
(TCG) / HRW de-frosting control
voltage (WGHR)
AO7 0-10 VDC 10 mA KLM 2x0.8 Yes, if duct heating
Hot water production control
voltage AO8 0-10 VDC 10 mA KLM 2x0.8 Yes
Digital inputs DI Connected to
a potential-free
normally open
contact
Emergency stop DI1 (xed) 24 VDC KLM 2x0.8 Yes
PDS10 supply air fan pressure
switch / de-frosting indication
(heatpump models)
DI2 (user-dened) 24 VDC KLM 2x0.8 Yes, -X
Overtime (only in Oce use) DI3 (user-dened) 24 VDC KLM 2x0.8 Yes
Manual boost DI4 (user-dened) 24 VDC KLM 2x0.8 Yes
Away mode DI5 (user-dened) 24 VDC KLM 2x0.8 Yes
Overpressure DI6 (user-dened) 24 VDC KLM 2x0.8 Yes
Central vacuum system
indication DI7 (user-dened) 24 VDC KLM 2x0.8 Yes
Cooker hood indication DI8 (user-dened) 24 VDC KLM 2x0.8 Yes
Electrical post-heating alarm /
compressor failure (heatpump
models)
DI10 (xed) 24 VDC KLM 2x0.8 Yes, if -X
Other connections
Control panel connections X27, X28 10 m cable
supplied with
the unit
Yes
Modbus-RTU X26 Instrument cable
2x2x0,5 Yes
Ethernet X19 Cat5 Yes
O3 ozone sensor (ION) ICEA2000A unit
connector 11 0–10 VDC KLM 4x0.8 Yes

16
Before installing the ventilation unit, make sure
there are no foreign objects inside the ventilation
unit or in the ducts
NOTE
• See the model-specic pictures of your unit at the end
of this manual.
• Verify the correct duct connections, to avoid wrongly
connected ducts.
• Don’t start the ventilation unit before the building is
in use.
• If the ventilation unit is turned on too early, the
ventilations system can be contaminated with
building dust.
• The duct output of the ventilation unit are duct-sized.
Use a duct part when connecting the ventilation unit
to a duct.
• Remember to insulate the duct all the way to the
ventilation unit outer shell.
Necessary additional installation materials
Material Intended use
Screws Mounting the rear attachment list
and ventilation unit on a wall (for
suitable models). Choose the screws
based on the wall material.
Sheet metal
screws
Attaching the rear attachment
bracket to the ventilation unit
Wall mounting
box
eAir wall mounting rack
Cables As dened in section Preparing
electrical work
Duct tape Sealing
Acoustic panels
(soft cellular
plastic)
Preventing structure-borne sounds
Insulation
material (cell
plastic and/or
wool, depending
on the location
of installation)
Insulation and soundproong
Rivets Connecting ventilation ducts to the
unit
Spirit level Making sure the unit is set straight
Water pipe Connecting duct coils and
condensation water drainage
Water trap/
siphon
Removal of condensation water
Duct connection
reducing tting
Fitting the ducts into the ventilation
system
NOTE: Always use reducing ttings
when necessary.
Dampers Keeping cold air outside
Silencers Dampening possible noise
Suitable
grommets for
the sensors
installed in the
duct
Installing sensors in ducts.
Shut-o valves To facilitate unit maintenance
Water circulation
balancing valves
Adjusting the water ow to correct
level
INSTALLATION

17Installation instructions for professionals
Before installing the ventilation unit, check that
the unit and the ductwork do not have any foreign
objects inside them.
FOR INFORMATION
Wall mounting
6
3
7
4
21
65kg
!
5
1/4" internal thread

18
1
All Enervent ventilation units should be drained. If the
ventilation unit is equipped with active cooling, then
draining is mandatory.
When air cools down, condensate water can form on cold
surfaces. For example in winter time when warm and
humid inside air meets the cold heat recovery wheel, or
when warm outside air meets the cooling coil in the ven-
tilation unit (if applicable).
Draining condensate water
• The condensate water should be led in a falling, at
least Ø15 mm pipe or hose, through a water trap to a
oor drain or such.
• The pipe must at all times lie lower than the conden-
sate water drip pan / condensate water connection of
the ventilation unit.
• There must not be any longer horizontal sections on
the pipe.
• The condensation drain pipe must be insulated if
mounted in spaces where freezing can occur.
• Also duct coils used for cooling must be drained and
use a water trap.
• Each drain connection must have a separate water
trap.
• Two or more water traps can be connected to the
same drain pipe, provided they are connected
together downstream from the water traps.
• If using an S-type water trap, the height of the back-
water in the water trap should be minimum 50 mm
(pic. 1, dimension B). The height dierence between
the drain point and the water trap should be mini-
mum 50 mm (pic. 1, dimension A).
• Make sure there is always water in the water trap.
• Enervent recommends the usage of mebrane type
water traps that do not depend on water for sealing.
Enervent product code K900010010 (small).
Enervent product code K900010002 (large).
• Installation of K900010010 water lock. The water trap
should only be installed vertically. Remove the 1/4"
plug covering the drain connection in the ventilation
unit (pic. 2). Screw in the water trap rmly (pic. 3). Lock
the water trap in place with the provided self tapping
screw and sleeve (pic. 4). Install the screw right under
the water trap. Install a suitable hose to the hose t-
ting of the water trap.
The condensate water drain must not be directly
connected to a sewer pipe, but to a oor drain or
equivalent.
CAUTION
• Installation of K900010002 water trap. Install the water
trap to a 32 mm pipe and tighten the pipe connec-
tions. Observe the arrow on the water trap indicating
correct direction of ow. The water trap can be instal-
led either vertically or horisontally (pic. 5).
• The functionality of the drain, including the duct coil
drains, should be checked by pouring water into the
drain at every lter change.
A
B
2
3
4
5

19Installation instructions for professionals
Installing eAir control panel
4
1 2
6
8
5
3
7
The eAir control panel (See section “Control system and eAir control panel” ) is installed on a mounting box, or installed with
a surface installation box (optional extra). Maximum two external control panels can be connected to a ventilation unit.
OP1

20
9
13
15
11
10
14
Optional extra
1-2 min
12