AERA AZURE 300 User manual

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INSTALLATION AND OPERATING INSTRUCTIONS
AZURE
COUNTER FLOW HEAT RECOVERY VENTILATION

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1. GENERAL INSTALLATION AND OPERATING INSTRUCTIONS
This document is the document you can reference for installation and use instructions. You should read these instructions
before proceeding an operation on the devices for your safety. This document should be issued to the relevant person after the
installation and commissioning of the device has been carried out.
1.0. Warning and safety instructions
To avoid any danger, all safety instructions must be observed. The electrical connection must be fully isolated from the supply
up to the final assembly. Damage due to improper transport and storage is not covered by the warranty
1.1. Warranty claims- Exclusion of liability
Any damages to the unit or parts of it due to improper handling or misuse by the purchaser or the fitter cannot be considered
subject to guarantee if these instructions have not been followed correctly.
The use of materials not offered or recommended by the manufacturer is not recommended. The damage caused by this reason
is not covered by the warranty.
1.2. Certificate
If the product is correctly assembled and used for its intended purpose, it meets the European Standards applicable at the date
of manufacture.
1.3. Receipt
The delivery contains one of the following unit types:
MODEL
ORDER NO
MODEL
ORDER NO
AZURE 300
AZURE 1400
AZURE 500
AZURE 2200
AZURE 700
AZURE 3200
Please check delivery immediately on receipt for accuracy and damage. If damaged, please notify carrier immediately. In case
of delayed notification, any possible claim may be void
1.4. Storage
Devices should be stored in a closed area away from moisture and dust, in such a way as not to be damaged. The storage of
the devices must be done in such a way as to prevent damage to the electrical components and the air inlet - outlet sections.
1.5. Transport
The transport of the devices must be done with carefully. All manufactured devices are shipped from the factory after all tests
and controls have been made before shipment.
The transport must be carried out by trained and experienced personnel and the necessary safety precautions should be taken
to prevent overturning and slipping of the device. During transport of the devices it should be ensured that the weight is evenly
distributed over the four corners.
The unit is packed ex works in a timber frame so that it is protected against normal transport strain.
1.6. Application- Operation
AZURE devices are designed in 6 different models to correspond the need of up to 3500 m3/ h air flow. There is a F7 class filter
on the fresh air side and a F6 class filter on the exhaust side as standard. The units are produced according to European Union
energy criteria and have EcoDesign label.
AZURE devices are designed with high energy efficient, low sound pressure and low power consumption plug fans. Plug fans
with EC motors can be driven with 3 fixed speeds or steplessly with the help of an air quality sensor thanks to build in smart
control system.
The ventilation unit must only be used according its intended purpose!
1.7. Function and operation modes
Thanks to the counter flow high efficiency heat recovery exchanger contained in the Azure devices, the heat of the blown air is
recovered and transferred to fresh air. The heat recovery efficiency depends on several factors, which include, among other
things, air humidity and the temperature variation of outside air and exhaust air.
Electrical preheaters are designed for cold/extra cold climates to prevent condensing air from freezing. The preheaters are
designed to fit inside the unit, 2 safety thermostats are supplied as standard with all units for extended safety.
AZURE devices are designed in accordance with VDI6022. Inside of the unit is easily cleanable. The used seals are closed cell
and prevent germ reproduction. All components that require service, have their own service doors. This way the unit does not
have to be disconnected from ducting system for servicing

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1.8. Performance data
Mechanical connections must be made correctly in order to obtain maximum efficiency from the device. The device's thermal
efficiency, sound level and electrical performance may vary depending on the ambient conditions the device is operating. These
conditions may affect the measurement result on site and vary from the catalogue data.
1.9. Heat systems
The simultaneous use of controlled domestic ventilation (AZURE units) and heat systems which depend on room air (tile oven,
gas stove etc.) requires compliance with all applicable regulations. The use of heat systems which depend on room air are only
permitted in state-of-the-art dense apartments with separate combustion air supply; only then are AZURE and heat systems
decoupled from each other and operable meeting the demands.
The relevant applicable regulations on the combined use of heat systems, domestic ventilation and extractor hoods (Federal
Association of Chimney Sweeps (ZIV)) must be observed!
1.9.1. General construction-law requirements
The ventilation unit with heat recovery must not be used simultaneously with fuel-burning heat systems and in residential units
with heat systems which depend on room air, which are connected to multiple exhaust systems. Potential combustion air ducts
and flue gas systems must be capable of being shut off from fuel-burning heat systems for the proper operation of the ventilation
system with a ventilation unit with heat recovery.
The ventilation units with heat recovery must only be installed and operated in rooms with heat systems which depend on room
air, if their flue gas venting is monitored by specific (on-site) safety devices, which shut down ventilation systems when
activated; so that the AZURE unit is shut down during the “combustion period”. It will be necessary to ensure that the use of the
domestic ventilation system does not result in a negative pressure larger than 4 Pa in the residential unit.
1.10. Technical data
MODEL
AZURE
300
500
700
1400
2200
3200
Boosted Air Flow (m3/h)
Normal Air Flow (m3/h)
Reduced Air Flow (m3/h)
Filter Class (Exhaust Air/ Fresh Air)
F6/F7
F6/F7
F6/F7
F6/F7
F6/F7
F6/F7
Rated Current (A) (Ventilation)
3,50
3,50
3,50/0/0
5,00/0/0
7,80/0/0
13,20/0/0
Rated Current (A) (Pre-heating)
7,30
4,00/4,00/4,00
7,90/7,90/7,90
12,30/12,30/12,30
18,40/18,40/18,40
Max. Total Rated Current (A)
10,80
7,50/4,00/4,00
12,90/7,90/7,90
21,10/12,30/12,30
31,60/18,40/18,40
Fan Power Consumption (kW)
0,34
0,34
0,34
1,00 kW
1,56
2,60
Pre- Heater Power Consumption (kW)
1,60
2,30
4,30
7,05
10,50
Max. Power Consumption (kW)
1,94
2,64
5,30
8,61
13,10
Supply Voltage/ Frequency
230 V/ 50 Hz/ 1 ~
380 V/ 50 Hz/ 3 ~
Standby losses
< 1 W
Design
IP20
Weight (kg)
60
80
125
150
185
225
Sound Pressure (dB)
41
42
47
54
52
54
Permissible air temperatures
-20o C to 40 oC
Wiring diagram
2. INSTALLATION
2.0. Assembly
AZURE compact devices are suitable for ceiling mounting thanks to the hanging apparatuses found on. Due to noise level which
change according to working conditions, it is recommended to install the AZURE units in the different rooms. Ensure that there
is a waste water connection in the installation area. Please consider the information on the "condensation outlet"! Assembly
should take place in such a way to enable preferably short ventilation ducts and their trouble-free connection to the unit. Tight
bends in the channel will cause high pressure drops.
Important note:
•The ventilation ducts must be rigid
•Flange connections must be leakproof and firm
•The terminal box is connected to the side of the casing and maintenance and service space should be left for the
doing any work on the device.
•The assembly of the AZURE compact unit must only take place in rooms that are free of frost, as there is a danger of
freezing. The room temperature must not fall below +5 °C
•If an external heater is connected, there must be at least 1 m piping before and after the heater, which must be made
of non-flammable material!

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2.1. Ceiling installation
Make sure the ceiling and fixing components can carry the device before installing The AZURE compact device. Unsuitable
mounting material can lead to the unit falling uncontrollably from the ceiling. Different methods of protection should be used to
prevent damage to devices due to the model.
Four mounting brackets including rubber buffers are mounted to the unit for ceiling installation. Assembly with appropriate ties
and accessories can be carried out.
When installing to ceiling, it is recommended that the heat exchanger is removed from the unit to reduce the
installation weight when lifting.
2.2. Condensation outlet
The humidity of exhaust air condenses to water during the heating period. The condensation water pan is made of stainless
steel. An incline of at least 3° must be observed and the connection to the local drainage system must be ensured on site.
Condensate pump can be used for depending on requirements and conditions.
The condensation outlet must be made frost-proof!

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2.3. Flange connection/ adapter pieces
Flange connections are recommended for Azure compact units are below
Flange connections must be leakproof and firm.
2.4. Installation unit
If installed in heated rooms and higher humidity, condensation can occur on the outside of the unit in the outside and extract air
area. In this case, water-vapor-tight insulation is to be installed on the surface in this area. Furthermore, the outside and exhaust
air ductwork should be insulated sufficiently.
If installed in unheated areas (e.g. frost-protected attic), sufficient insulation must be installed on the outside of the unit.
Otherwise, condensate formation could occur on the casing sides. Frost-proof condensate drainage must be installed, perhaps
with a heater
2.5. Electrical connection
All work must be carried out with the equipment fully isolated from the power supply. The electrical connections must be carried
out in accordance with the relevant wiring diagram and must only be carried by certified electricians!
3. FUNCTIONAL DESCRIPTION
3.0. Unit overview
MODEL
Description
Order No
H
W
L1
L2
D1
D2
AZURE 300
AZURE 500
AZURE 700
AZURE 1400
AZURE 2200
AZURE 3200

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3.1. Functional diagram
Pos
Name
Item no.
1
Outside air sensor
2
Exhaust air sensor
3
Extract air sensor
4
Supply air sensor
5
Adapter
6
Controller Panel
7
Frost protection sensor
3.2. Functions
3.2.0. Pre-heater and deicing
The pre-heater, which is standard on the azure devices, comes after outside air F7 filtration. This application is to ensure that
the heat recovery exchanger is protected from freezing in very cold weather.
All preheaters are controlled by one digital output and solid-state relays with zero cross
detection.
Pre-heater enabling/disabling
Enabling/disabling of the pre- heater by the user/installer (factory setting: deactivated).
Overheat safety control of pre- heater
The preheater is equipped with two safety temperature limiters, the STL (auto reset = trigger temperature +xx °C) and (manual
reset = trigger temperature +xx °C) are connected in series.
Once a safety temperature limiter is triggered, the preheater will be disconnected from the
power supply and an alarm will be displayed on the controller.
The preheater only works if the supply air fan is operating on a minimum flow rate and there
are no errors. If the unit is switched to standby or unit-off mode, the preheater will switch off
immediately. The supply air fan is stopped 90 seconds later and the outdoor air flaps are
closed.
One alarm input for overheated preheater.
Deicing strategy
The heat exchanger frost-protection function is divided into 3 steps:
Step I: Activation of the preheater
The preheater will start if the following conditions are met:
Condition I: T-ODA is lower than -4 °C.

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Condition II: T-EHA is lower than +0 °C.
Condition III: Preheater is not disabled.
If all conditions are met, the preheater will be switched on and controlled according to T-EHA.
PID-modulator values must be configurable.
Step II: Reducing the flow rate / EHA and SUP air fan
Condition I: Preheater has been switched on for longer than 3 minutes (100% power).
Condition II: T-EHA is lower than 0 °C.
If both conditions are met, the EHA and SUP air volume will be reduced 50 % but not more than 50 % of the total flow rate. The
preheater will not be deactivated in this period.
Step III: Emergency shutdown
[Condition I: The flow rate of the exhaust and supply air fan is reduced for longer than 5 min.
OR
Condition II: The preheater is deactivated.]
AND
Condition III: T-EHA is lower than 0 °C.
If the conditions are met, the preheater will be deactivated, and the supply air fan will be shut
down with a delay time of 90 sec.
The heat exchanger frost-protection will be deactivated, and the unit resumes with normal
operation if the following conditions are met:
Condition I: T-ODA is higher than -3 °C.
OR
Condition II: T-EHA is higher than +4 °C.
3.2.1. RUN output
The RUN output can, for example, serve as a signal for building control systems to determine the system status. A relay output
is located on the unit (label: “RUN “) and as soon as the AZURE unit is in ventilation mode, the contact is closed.
3.2.2. External contact signal
The AZURE unit can be put into standby mode or ventilation mode through the “External contact “function.
• Contact open = Standby mode
• Contact closed = Ventilation mode
If the AZURE unit is switched to ventilation mode via the controller “Ext. sensor “the external contact must first be closed and
then opened to put the AZURE into standby mode. This is also the case if the AZURE unit has been put into standby mode via
the controller. The external contact must first be opened and then closed to put the AZURE into ventilation mode.
3.2.3. Fire mode
The AZURE unit can be put into two operating modes (exhaust air mode or standby mode) through the “Fire mode “function
(Fire contact):
•“Unit off “(Standby)
•“Extract air “
These modes can be selected from the controller “Fire mode “. If the fire contact is opened, the previously selected operating
mode will be activated.
The controller will be locked during this time.
3.2.4. Manual mode
3.2.4.1. CAV
Manual control of the fans: 3 stage fan control in constant air volume mode (reduced, normal, boosted). Each ventilation stage
(reduced, normal, boosted) has its own installer definable setpoint value (m3/h)
3.2.4.2. Constant RPM
Manual control of the fans: 3 stage fan control in constant air volume mode (reduced, normal, boosted). Each ventilation stage
(reduced, normal, boosted) has its own installer definable setpoint value (%)
3.2.4.3. CAP/ VAV
Control of the fans according to one installer selectable setpoint air pressure value (Pa)
3.2.5. Flaps
When there is any ventilation demand, the outdoor air flap and exhaust air flap always open automatically. They also close
immediately if both fans are turned off in case of unit shutdown.
3.2.6. Ventilation on demand (VOD)
Ventilation on demand only works in CAV or constant RPM mode
Input selector
According to the connected sensor type (CO2 or VOC) the correct measurement unit ppm is shown on the HMI and in the
webserver.

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For this reason, the right sensor type connected to each analog input must be selectable.
CO2 sensor can be done in E-Tool or on the HMI.
VOD enabling/disabling
Enabling/disabling of VOD mode by the user/installer (factory setting: deactivated)
.
Scaling for different sensor types
Linear function adjustment for sensors is possible in the scaling menu.
CO2
VOC
FTF
X1
1.7 V
1.7 V
0 V
Y1
400 ppm
450 ppm
0% rH
X2
10 V
10 V
10 V
Y2
2000 ppm
2000 ppm
100% rH
Possibility to connect up to 6 sensors of the same type to one analog input with external hardware: MM6-24/D.
When there are several sensors of the same type connected to one analog input, the highest
sensor value is used in the control.
VOD function
Two “threshold values” (ppm or rH, one for minimal and one for boost stage) can be selected.
for each sensor type:
•CO2, 0-2000ppm
•Relative humidity 0-100%
•The VOC sensor can work with the same settings as the CO2 sensor.
Stepless fan control according to sensor signal.
When the upper threshold value is reached, the ventilation unit will operate at boost stage.
The ventilation unit therefore increases or decreases the flow rate capacity before reaching the threshold value depending on
the threshold / current value comparison.
VOD starts ventilation when the following conditions come up:
•VOD must be enabled by the user.
•There is a signal from the connected sensor and the start threshold is reached.
Unit switches back to standby or last operation if there is no sensor demand anymore (sensor value lower than lower threshold-
hysteresis).
VOD stop function
If the sensor demand does not decrease after 2h of operation at boost stage, the unit switches to standby or last operation.
However, the unit van be always started manually.

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After 0-24 h of standby it runs again in VOD mode if there is a sensor signal
The stopping time (0…24 h) is selectable by the installer. The VOD stop function can be disabled, when the stopping time is set
to 0.
3.2.7. Time control
Each day has three individual time sequences. The time sequences are available in each ventilation stage (reduced, normal,
boosted) when the unit is in CAV mode.
Ventilation on demand (VOD) has one-time channel to activate/ deactivate this function in one definable sequence per day
3.2.8. Defective sensor detection
If any sensor is defective the unit is shut down and an alarm is shown on the HMI: Sensor error T-xxx
3.2.9. Automatic bypass
3.2.9.1. What is the function of automatic bypass in your ventilation unit
The main function of Automatic bypass is not to channel the fresh outside air through the heat exchanger, but rather through the
so-called “bypass channel” in the unit past the heat exchanger and directly into the supply air rooms
Bypass closed: Outside air is channeled through heat exchanger into the room = Active heat recovery
Bypass open: Outside air is channeled through heat exchanger into the room = Active heat recovery
Outside air is channeled directly into the room = Inactive heat recovery, indirect “cooling “of room air.
3.2.9.2. When is the unit bypass used?
The bypass is normally used in the summer months for so-called “night cooling “. With regard to night cooling. the effect of cool
outside temperatures is used in comparison to room or inside temperatures.
The bypass can also be used in transition periods (spring and autumn) if the room temperature is significantly higher than the
outside air temperature during the day due to high windows (“natural bypass cooling “).
The night cooling effect and “natural bypass cooling “is strongly influenced by the temperature differences between outside
air/supply air and room air, the flow rate, the shade and the required cooling loads. Bypass cooling will never replace air
conditioning!
3.2.9.3. Bypass functional description
The airflow through the exchanger is controlled by a by-pass damper. Both dampers are controlled by the same analogue
output” Y2 exchanger” or by two digital outputs “Exchanger 3-pos. actuator, increase” and “Exchanger, 3-pos. actuator,
decrease”, and are wired so that one opens as the other closes.
If the cooling recovery has been configured, there is a cooling requirement and the extract air temperature is a settable amount
lower than the outdoor temperature, cooling recovery can be activated. When cooling recovery is activated the heat exchanger
signal will be reversed to give increasing recovery on increasing cooling demand. The function also activates the heating
function “Free heating”: if heating is required and the outdoor temperature is higher than the extract air temperature, outdoor air
will primarily be used.
4. CONTROLLER
4.0. Surface-mounted controller with touch screen (the images are going to be revised later.)

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Position
Explanation
1
Alarm button: Gives access to the alarm list.
2
Alarm LED: Indicates alarm by flashing red light.
3
Write LED: Indicates by flashing yellow light that parameters can be set or changed.
4
OK button: Press this button to be able to change or set parameters whenever possible. Also used to move
between changeable parameters in one dialogue window frame.
5
Cancel button: Used to abort a change and return to the initial setting.
6
Right/Left & Up/Down buttons: Used to move up, down, left & right in the menu tree. Up/Down buttons are
also used to increase or decrease values when setting or changing parameters.
7
Mounting holes.
8
Connection block.
9
Connection to brown cable.
10
Connection to yellow cable.
11
Connection to white cable.
12
Connection to black cable.
4.1. The menu system (the images are going to be revised later.)
4.1.1. Running mode
4.1.1.1. Running mode unit
The unit’s running mode can be changed without logging on.
The running mode can be set to Auto, Off, Manual reduced run or Manual normal run.
The Auto mode should normally be used.
Off can be used to stop the unit for service and similar. Manual normal run or Manual reduced run will start the unit even if the
timer says that the running mode should be “Off”.
If the running mode is set to Off, Manual normal run or Manual reduced run, a C alarm is activated: Running mode Manual.
The alarm automatically resets when the running mode is set to Auto again.
Shows the accumulated running times for the fans.

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4.1.1.1.1. Selected functions
In these menus, you can see how some of the most important functions have been
configured. Changes cannot be made.
Heater, exchanger and cooling type. If one of the functions is not used, it will be
shown as ”Not used”.
This function is used during the summer to cool the building night-time using cool
outdoor air, thereby reducing the need for cooling during the day and saving
energy.
Support control is used for adjusting the room temperature outside of the normal
running time. If there is a heating or cooling demand in the room, the unit will start
and the temperature will be adjusted.
The fire function determines the settings for the fire dampers and the unit’s running
mode when a fire alarm is activated.
An analogue input can be configured for an external setpoint device e.g. TG-
R4/PT1000.
4.1.1.2. Alarm events
Alarm log, containing the 40 latest alarm events. The most recent event is listed
first. The alarm log can only be used for viewing the alarm history. Alarms are
handled in a special area, see the section Alarm handling.
4.1.1.3. Inputs/ Outputs
These menus show the current values for all configured inputs and outputs.
These are read-only menus. No changes can be made here.
Universal inputs can be configured as either analogue or digital inputs.
Analogue inputs and digital outputs are shown here as examples.
4.1.1.4. Analogue inputs/ outputs
The current values for the analogue inputs and outputs are shown here.

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4.1.1.5. Digital inputs/ outputs
This menu shows if the digital inputs and outputs are On or Off.
4.1.2. Temperature
Here you can view all actual and setpoint values for temperature control. The menu is visible to all users, regardless of log on
level. However, to make changes you need at least Operator authority.
Only menus for activated functions will be shown.
4.1.2.1. Setpoint supply air temperature control
Here, actual and setpoint values are shown, as well as the outdoor temperature if
an outdoor sensor has been configured. This is a read-only menu. No settings can
be made here.
Submenu: Setpoint.
4.1.2.2. Setpoint outdoor temperature compensated supply air control
Here, actual and setpoint values are shown, as well as the outdoor temperature if
an outdoor sensor has been configured. This is a read-only menu. No settings can
be made here.
Submenu: Setpoint.
In control modes Supply air control/Room control and Supply air control/Extract air control, the setpoint relationship is used
when supply air control is active.
Use the eight breakpoints to generate a setpoint / outdoor temperature
relationship.
In-between-values are calculated using straight lines between breakpoints.
Setpoints for temperatures lower than the lowest breakpoint and higher than the highest breakpoint are calculated by extending
the line between the two last breakpoints at either end.
Example: At the lower end the setpoint is increasing by 1°C for every 5 °C lowering of the outdoor temperature. So, the setpoint
at –23°C would be 25°C + 0.6x 1.0°C = 25.6°C.

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4.1.2.3. Setpoint Cascaded room temperature control
In control mode Supply air control/Room control, the setpoint is used when
cascade connected room control is active.
Submenu for setting the min and max limitation temperatures for the supply air.
If two room sensors have been configured, you will also get this menu. The
controller uses the average temperature of the two sensors.
4.1.2.4. Setpoint Cascaded extract air temperature control
In control mode Supply air control/Extract air control, the setpoint is used when
cascaded extract air control is active.
Sub menu for setting the min and max limitation temperatures for the supply air.
4.1.2.5. Setpoint Outdoor compensated room temperature/extract air control
Offers the possibility to compensate the room temperature/extract air temperature
against the outdoor temperature. Note that the curve must be adjusted for optimal
functionality!
This function operates according to the assumption that one may accept a slightly
higher indoor temperature when it is warm outside and vice versa, providing an
excellent opportunity for conserving energy.
4.1.2.6. Support control heating/Support control cooling
Support control is normally used when room temperature control or extract air
control has been configured, to prevent a too large offset in temperature when the
unit is “Off”.
“Support control Heating” or “Support control Cooling” will run if support control is
configured, the running mode is "Off" (timer control OFF and not in extended
running) and if conditions call for support control.

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Minimum run time is settable 0 to 720 minutes (FS= 20 minutes).
4.1.2.7. Frost protection temperature
Relevant value for the water temperature at the frost protection sensor. Frost
protection can be set to function either on Y1, Y4 or on both. The function only
supports a single sensor.
4.1.2.8. Exchanger de-icing
This menu is shown if exchanger de-icing has been configured. If the temperature at
the de-icing sensor drops below the setpoint value, the de-icing function is started. It
is stopped when the temperature has risen above the setpoint plus the set differential.
4.1.2.9. Heat exchanger efficiency monitoring
The function calculates the heat exchanger temperature efficiency in % when the
output signal to the exchanger is higher than 5 % and the outdoor temperature is
lower than 10°C. The function requires an extract air sensor, an exhaust air sensor
and an outdoor sensor or an efficiency sensor, extract air sensor and outdoor
sensor.
When the control signal is lower than 5% or the outdoor temperature is higher than 10°C the display will show 0%.
4.1.2.10. Recirculation
The first of the three below menus can be found under Configuration in the controller. The fourth menu is located under
Temperature.
Recirculation is a function for mixing the air in the room using the supply air fan. The function can be used even when there is
no heating or cooling demand. When using recirculation control, the extract air fan stops, and a recirculation damper opens
which allows the air to circulate through the unit.
It is selectable whether or not the extract air fan should run during recirculation.
During recirculation, offset SAF makes it possible to add to the supply air fan an offset to the setpoint during normal operation.
If pressure control has been configured, the offset is set in Pa. If flow control has been configured, it is set in m3/h. If manual
control has been configured, the offset is set in %.
If you have selected the Offset function, which is a deviation from the regular supply air setpoint, you will instead be given the
option to change this offset value here.

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4.1.3. Air control
This menu is only shown if frequency controlled fans have been configured.
Depending on the choice of fan control, different combinations of the menus below will be shown.
4.1.3.1. Pressure control SAF (there are also corresponding menus for EAF)
Here, Actual and Setpoint values are displayed. This is a read-only menu. No
settings can be made here.
Submenu Setpoint values for normal speed (1/1) and reduced speed (1/2).
Submenu outdoor compensation. An outdoor temperature dependent compensation
of the pressure setpoint value can be added. The compensation can be set for
either the supply air fan alone or for both fans.
Submenu extra compensation. A temperature dependent compensation similar to
the one above but with selectable temperature source.
4.1.3.2. Flow control SAF (there are also corresponding menus for EAF)
Setpoint Flow control. Here, Actual and Setpoint values are displayed. This is a
read-only menu. No settings can be made here.
Submenu Setpoint values for normal speed (1/1) and reduced speed (1/2).
Submenu Outdoor compensation. An outdoor temperature dependent
compensation of the pressure setpoint value can be added. The compensation can
be set for either the supply air fan alone or for both fans.
Submenu Extra compensation. A temperature dependent compensation similar to
the one above but with selectable temperature source.
4.1.3.3. Manual frequency control SAF (there are also corresponding menus for EAF)
Here, Actual and Setpoint values are displayed. This is a read-only menu. No
settings can be made here.

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Submenu Setpoint values for normal speed (1/1) and reduced speed (1/2).
The setpoint is set in % of the full output. 100 % = 10 V output signal.
Submenu outdoor compensation. An outdoor temperature dependent
compensation of the pressure setpoint value can be added.
The compensation can be set for either the supply air fan alone or for both fans.
Submenu extra compensation. A temperature dependent compensation similar to
the one above but with selectable temperature source.
4.1.3.4. Frequency control external
For fan control using an external control signal, e.g. via a VAV optimizer.
4.1.3.5. Frequency control SAF with EAF slave/flow control (also available for opposite function)
A pressure control where either the SAF or EAF is operated as a slave. This function
is also available featuring flow control.

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4.1.3.6. CO2
In applications with varying occupancy, the fan speed can be controlled by the air
quality as measured by a CO2 sensor. CO2 can be set to function either on Y2,
Y4 or both.
4.1.4. Time Setting
4.1.4.1. General
This menu is only shown if humidity control has been configured.
Corrigo has a year-base clock function. This means that a week-schedule with
holiday periods for a full year can be set. The clock has an automatic
summertime/wintertime change-over.
Individual schedules for each week-day plus a separate holiday setting. Up to 24
individual holiday periods can be configured. A holiday period can be anything
from one day up to 365 days. Holiday schedules take precedence over other
schedules.
Each day has up to two individual running periods. For two-speed fans and
pressure controlled fans there are daily individual schedules for normal speed and
reduced speed, each with up to two running periods.
Up to 5 digital outputs can be used as timer controlled outputs. Each with individual week-schedules with two activation periods
per day. These outputs can be used to control lighting, door locks etc. Only outputs which have been configured will be shown.
Timer output 5 can be used to control a recirculation function.
4.1.4.2. Time/ Date
This menu shows and permits the setting of time and date.
Time is shown in 24-hour format.
Date is shown in the format YY-MM-DD
4.1.4.3. Timer normal speed
There are 8 separate setting menus, one for each weekday and one extra for
holidays. Holiday schedules take precedence over other schedules.
For 24 hour running, set a period to 0:00 –24:00.
To inactivate a period, set the time to 00:00 –00:00. If both periods of a day are
set to 0:00 –0:00, the unit will not run at normal speed that day.
If you want to run the unit from one day to another, e.g. from Mon 22:00 to Tue
09:00, the desired running time for the various days must be entered individually.
First Mon 22:00 –24:00.....
...then Tue 00:00 –09:00..
4.1.4.4. Timer reducer speed
These settings will be ignored if single speed fans are configured.
Should periods for normal speed and periods for reduced speed overlap, normal
speed takes precedence.
Structure and function is otherwise identical with Timer Normal speed.

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4.1.4.5. Extended running
Digital inputs can be used to force the unit to start although the timer says the
running mode should be “Off”.
For 2-speed fans and pressure/flow controlled fans, inputs for normal speed and
reduced speed can normally be used.
The unit will run for the set time. If the running time is set to 0 the unit will only run as long as the digital input is closed.
4.1.4.6. Extra time outputs 1…5
Up to 5 digital outputs can be used as timer controlled outputs. Only outputs which have been configured will be shown. Each
with individual week-schedules with two activation periods per day.
Each timer output has 8 separate setting menus, one for each weekday and one
extra for holidays. Holiday schedules take precedence over other schedules
If the function Recirculation has been configured, Timer output 5 can be used for
controlling start/stop of the Recirculation function.
4.1.4.7. Holidays
Up to 24 separate holiday periods for a full year can be set.
A holiday period can be any number of consecutive days from one and upwards.
The dates are in the format: MM-DD.
When the current date falls within a holiday period, the scheduler will use the
settings for the weekday “Holiday”.
4.1.5. Access rights
There are four different access levels, Normal level which has the lowest access and does not require logging on, Operator
level, Service level and Admin level which has the highest access. The choice of access level determines which menus are
shown, as well as which parameters can be changed in the displayed menus.
The basic level only permits changes in Running mode and gives read-only access to a limited number of menus.
Operator level gives access to all menus except Configuration.
Service level gives access to all menus except the submenus Configuration/In- and Outputs and Configuration/System.
Admin level gives full read/write access to all settings and parameters in all menus
Repeatedly press down-arrow when the start-up display is shown until the arrow-
marker to the left of the text-list points to Access rights. Press RIGHT.
4.1.5.1. Log on
In this menu it is possible to log on to any access level by entering the appropriate
4-digit code. The log on menu will also be displayed should you try to gain access
to a menu or try to do an operation requiring higher authority than you have.
Press the OK button and a cursor marker will appear at the first digit position. Repeatedly press the UP button until the correct
digit is displayed. Press the RIGHT button to move to the next position. Repeat the procedure until all four digits are displayed.
Then press OK to confirm. After a short while the text on the line: Present level will change to display the new log on level. Press
the LEFT button to leave the menu.
Factory set passwords:
Admin: 1111
Service: 2222
Operator: 3333
Normal: 5555
4.1.5.2. Log off
Use this menu to log off from the present level to the basic "no-log on" level.

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If the access level is Operator, Service or Admin, the user will automatically be logged off to Normal after a settable time of
inactivity. The time is settable.
4.1.5.3. Change password
You can only change the password for access levels lower or equal to the
presently active level.
4.1.5.4. Alarm handing
If an alarm condition occurs, the red alarm LED on the front panel of units with display or the alarm LED on a connected display
unit will start flashing. The LED will continue to flash as long as there are unacknowledged alarms.
Alarms are logged in the alarm list. The list shows type of alarm, date and time for the alarm and the alarm class (A, B or C
alarm).
To access the alarm list, press the alarm button, the front panel button with the red button-top.
If there are multiple alarms, this is indicated by up / down arrow symbols at the
right-hand edge of the display.
Use the UP and DOWN buttons to access the other alarms.
At the left end of the bottom display line the alarm status is shown. For active, unacknowledged alarms the space is blank.
Alarms that have been reset will be indicated by the text Acknowledged. Still active or blocked alarms are indicated by the text
Acknowledged or Blocked.
Alarms are acknowledged by pressing the OK button. You are then given the choice of acknowledging the alarm or blocking the
alarm.
Acknowledged alarms will remain on the alarm list until the alarm input signal resets.
Blocked alarms remain on the alarm list until the alarm has reset and the block has been removed. New alarms of the same
type will not be activated as long as the block remains.
Class A and B alarms will activate alarm output(s) if these have been configured.
Class C alarms do not activate the alarm output(s).
Class C alarms are removed from the alarm list when the alarm input resets even if the alarm has not been acknowledged.
4.1.5.5. Language
If RIGHT is pressed three times when the start menu is shown, a menu is displayed in which the language can be changed.
The different language files are stored in the application memory and are downloaded to the work memory. If a Corrigo has
been reloaded with a program revision newer than the factory revision using E tool©, the controller will not allow language files
to be downloaded from the application memory. This is because there is a risk that the language files are not compatible with
the new revision. Therefore, you are limited to the two languages you have downloaded using E tool.

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5. DIMENSIONS & CHARACTERISTIC CURVES
5.0. Dimensions
MODEL
DIMENSIONS (mm)
L
D
H
L2
D2
AXB
300
1300
680
360
1338
620
160 X 160
500
1300
880
360
1338
820
200 X 200
700
1500
1055
360
1530
995
150 X 300
1400
1550
1355
400
1588
1295
250 X 500
2200
1850
1675
485
1888
1615
300 X 500
3200
2125
1950
567
2163
1888
400 X 700