39Installation instructions for professionals
Settings that are not dened
in the setup wizard
The ventilation units are pre-prepared at the factory
in order to shorten the installation time. However,
all possible optional extras cannot be taken into
account. The settings for the devices connected to the
motherboard must be congured on the control panel.
The following table contains the eAir motherboard
connections and their placements on the motherboard.
eAir motherboard connections
NTC sensors
The eAir motherboard has connections for eight (8) NTC-10 sensors.
Intake Intended use
X1 Outdoor air temperature TE01
X2 Supply air after heat recovery unit temperature TE05
X3 Supply air temperature TE10
Supply air temperature after dehumidication coil
TE07 (only units with dehumidication function)
X4 Extract air temperature TE32
X5 Exhaust air temperature before heat recovery TE31
(HP only)
Evaporator uid pipe temperature TE62 (-X only)
CG radiator freeze protection TE46 (CG-W only)
X6 Pre-heated extract air temperature TE50 (HP only)
X7 Pre-heated outdoor air temperature TE02 (CHG)
X12 Return water temperature TE45
Analog inputs AI 0-10V
Analog inputs AI1–AI6 are between 0–10V.
These input functions are user-dened.
Intake Intended use
AI1 (X16) Humidity transmitter 1
AI2 (X16) Humidity transmitter 2
Water heater temperature TE80 (Aqua only)
AI3 (X16) (Free)
Supply air duct pressure PDE10
AI4 (X16) (Free)
Exhaust air duct pressure PDE30
AI5 (X15) Carbon dioxide transmitter 1
AI6 (X15) Carbon dioxide transmitter 2
Analog inputs AI1–AI6 have the following functions available:
Humidity transmitter 1, 2, and 3
Carbon dioxide transmitter 1, 2, and 3
Room temperature transmitter 1, 2, and 3
Outdoor temperature transmitter
Pressure dierence transmitter PDE10 and PDE30.
These sensors are used in the constant duct
pressure control.
Changing the temperature setting
Analog inputs AI7–AI8 are between 0–5V.
These intake functions are locked by the software.
AI7 (X29) Extract air humidity RH30
eAir motherboard connections
AI8 (X29) Extract air temperature TE30
Analog inputs AI9–AI16 are between 0–10V.
These input functions are locked by the software.
AI9 (X10) Supply air lter pressure dierence PDE01 (extra)
AI10 (X10) Exhaust air lter pressure dierence PDE31 (extra)
AI11 (X10) Supply air humidity RH10 (only models with
dehumidication function)
AI12 (X10) Supply air temperature TE10 (only models with
dehumidication function)
AI13 (X10) Free
AI14 (X10) Free
AI15 (X10) Free
AI16 (X10) Free
Analog outputs AO 0-10V
Output Intended use
AO1 (X18) Supply air fan control voltage
AO2 (X18) Exhaust air fan control voltage
AO3 (X16) Cooling control voltage / additional post-heating
control voltage (heat pump models)
AO4 (X18) Rotating heat exchanger control voltage
AO5 (X16) Heating control voltage / compressor power control
voltage (heat pump models)
AO6 (X15) Pre-heating control voltage / pre-cooling control
voltage (CHG) / HRW n:o 2 control voltage (Twin
Tropic)
AO7 (X15) Extract air pre-heating control voltage (HP) / extract
air dehumidication control voltage (TCG) / HRW
de-frosting control voltage (WGHR)
AO8 (X10) Hot water production control voltage
Digital outputs (DO), relays, closing contacts.
Intake Intended use
DO1 On/O control of fans
DO2 On/O control of heating
DO3 On/O control of cooling / On/O control of
heating (heat pump models)
DO4 On/O control of HRW
DO5 On/O control of dampers / Salla/Svea On/O
control of evaporationheater
DO6 On/O control of pre-heating / On/O control of
pre-cooling / On/O control of heating circulating
pump (Aqua KIW)
DO7 Time-controlled relay / circulation pump on/o
control PU80 (Aqua) / extract air cooling on/o
control (TCG)
DO8 A/AB alarm output, closing
Digital inputs (DI) (buttons and indications)
Connection only to the GND terminal! Voltage must not be
connected to digital inputs.
The digital inputs are user-dened
Intake Intended use
DI1 (X16) Emergency stop (xed)
DI2 (X16)
user-dened
PDS10 supply air fan pressure switch / de-frosting
indication (heat pump models)
DI3 (X16)
user-dened
Overtime (only in Oce use)
DI4 (X16)
user-dened
Manual boost