Regin Corrigo E 8, 8D, 15, 15D, 28, 28D, 152, 152D, 282, 282D ventilation controller Manual

Corrigo E - manual
Ventilation application
DISCLAIMER
The information in this manual has been carefully checked and is believed to be correct. Regin however, makes no warranties
as regards the contents of this manual and users are requested to report errors, discrepancies or ambiguities to Regin, so that
corrections may be made in future editions. The information in this document is subject to change without prior notification.
The software described in this document is supplied under licence by Regin and may be used or copied only in accordance
with the terms of the licence. No part of this document may be reproduced or transmitted in any form, in any fashion,
electronically or mechanically, without the express, written permission of Regin.
COPYRIGHT
 AB Regin. All rights reserved.
TRADEMARKS
Corrigo E, E tool, EXOdesigner, EXOreal, EXOline, EXO4, EXO4 Web Server, Optigo, Regio and Regio tool are registered
trademarks of AB Regin.
Windows, Windows 2000, Windows XP, and Windows Server 2003 are registered trademarks of Microsoft Corporation.
Some product names mentioned in this document are used for identification purposes only and may be the registered
trademarks of their respective companies.
Revision O, March 2012
Software revision: 3.1
Table of contents
CHAPTER 1 ABOUT THE MANUAL .................................................................................................. 5
More information ........................................................................................................................ 5
CHAPTER 2 ABOUT CORRIGO E ...................................................................................................... 6
CHAPTER 3 INSTALLATION AND WIRING ...................................................................................... 12
3.1 Installation ........................................................................................................................... 12
3.2 Wiring .................................................................................................................................. 12
CHAPTER 4 COMMISSIONING ...................................................................................................... 24
4.1 How to do it ......................................................................................................................... 24
CHAPTER 5 FUNCTIONAL DESCRIPTION ....................................................................................... 27
5.1 Temperature control ........................................................................................................... 27
5.2 Extra control circuit ............................................................................................................. 40
5.3 Humidity control .................................................................................................................. 40
5.4 Fan control ........................................................................................................................... 41
5.5 Pump control ....................................................................................................................... 46
5.6 Damper control .................................................................................................................... 47
5.7 Extended running and External switch ................................................................................ 48
5.8 Time-switch outputs ............................................................................................................ 48
5.9 Alarms .................................................................................................................................. 48
CHAPTER 6 STARTING AND STOPPING THE UNIT ......................................................................... 50
6.1 Start conditions.................................................................................................................... 50
6.2 Stop conditions .................................................................................................................... 50
6.3 Start sequence ..................................................................................................................... 51
6.4 Stop sequence ..................................................................................................................... 51
CHAPTER 7 DISPLAY, LEDS AND BUTTONS ................................................................................... 52
7.1 Display ................................................................................................................................. 52
7.2 LEDs ..................................................................................................................................... 52
7.3 Buttons ................................................................................................................................ 52
7.4 Navigating the menus .......................................................................................................... 52
CHAPTER 8 ACCESS RIGHTS .......................................................................................................... 54
8.1 Log on .................................................................................................................................. 54
8.2 Log off .................................................................................................................................. 54
8.3 Change password ................................................................................................................. 55
8.4 Change password to remove automatic logoff ................................................................... 55
CHAPTER 9 RUNNING MODE ....................................................................................................... 56
9.1 Running mode, unit ............................................................................................................. 56
9.2 Selected functions ............................................................................................................... 56
9.3 Alarm events ........................................................................................................................ 57
9.4 Inputs/Outputs .................................................................................................................... 57
CHAPTER 10 TEMPERATURE ........................................................................................................ 58
CHAPTER 11 AIR CONTROL........................................................................................................... 61
CHAPTER 12 HUMIDITY CONTROL................................................................................................ 63
CHAPTER 13 TIME SETTINGS ........................................................................................................ 64
13.1 Time / Date ........................................................................................................................ 64
13.2 Timer Normal speed .......................................................................................................... 64
13.3 Timer Reduced speed ........................................................................................................ 65
13.4 Extended running .............................................................................................................. 65
13.5 Timer outputs 1…5 ............................................................................................................. 65
13.6 Holidays ............................................................................................................................. 66
CHAPTER 14 MANUAL / AUTO ..................................................................................................... 67
CHAPTER 15 SETTINGS ................................................................................................................. 69
15.1 Control temp ...................................................................................................................... 69
15.2 Control pressure ................................................................................................................ 70
15.3 Control flow ....................................................................................................................... 70
15.4 Humidity control ................................................................................................................ 71
15.5 Control Extra unit............................................................................................................... 71
15.6 Alarm settings .................................................................................................................... 71
15.7 Save and restore settings................................................................................................... 73
CHAPTER 16 CONFIGURATION ..................................................................................................... 74
16.1 Inputs and outputs............................................................................................................. 74
16.2 Control function ................................................................................................................. 76
16.3 Fan control ......................................................................................................................... 77
16.4 Extra control circuit ........................................................................................................... 78
16.6 Heating coil ........................................................................................................................ 78
16.7 Exchanger .......................................................................................................................... 79
16.8 Chiller ................................................................................................................................. 79
16.9 Pump control ..................................................................................................................... 80
16.10 Free cooling ..................................................................................................................... 81
16.11 Support control ................................................................................................................ 81
16.12 CO2/VOC Demand control ............................................................................................... 81
16.13 Fire function ..................................................................................................................... 82
16.14 Humidity control .............................................................................................................. 82
16.15 Exchanger de-icing ........................................................................................................... 83
16.16 Cooling recovery .............................................................................................................. 83
16.17 Minimum limit dampers .................................................................................................. 83
16.19 External setpoint.............................................................................................................. 83
16.20 Run indication / Motor protection .................................................................................. 83
16.21 Actuator type ................................................................................................................... 84
16.22 Running time, 3-position actuators ................................................................................. 85
16.23 Step controllers................................................................................................................ 85
16.24 Recirculation .................................................................................................................... 86
16.25 Pretreatment ................................................................................................................... 87
16.26 Alarm setting ................................................................................................................... 87
16.27 Communication ............................................................................................................... 91
16.28 Other parameters ............................................................................................................ 93
16.29 System ............................................................................................................................. 96
CHAPTER 17 EXPANSION MODEL ................................................................................................. 99
17.1 Port 1 ................................................................................................................................. 99
17.2 Port 2 ................................................................................................................................. 99
17.3 Wiring ................................................................................................................................ 99
CHAPTER 18 OTHER FUNCTIONS ................................................................................................ 101
18.1 Alarm handling ................................................................................................................. 101
18.2 Free text ........................................................................................................................... 101
18.3 Revision number .............................................................................................................. 101
18.4 Language .......................................................................................................................... 102
18.5 Indication LEDs ................................................................................................................ 102
18.6 Changing the battery ....................................................................................................... 102
18.7 Start-up wizard ................................................................................................................ 103
CHAPTER 19 INDEX .................................................................................................................... 105
FREQUENCY CONVERTERS ................................................................................................. 109
Chapter 1 About the manual
This manual covers all the models in the Corrigo E series used with the ventilation application. This
revision covers program revisions from 3.1.
More information
More information about Corrigo E can be found in:

Manual E tool – Manual of how to configure the controllers using the PC software E tool

Lon-interface variable list – Variable list for the Corrigo E series

Network variables for EXOline and Modbus – Variable list for EXOline and Modbus
communication

CE - Declaration of conformity, Corrigo E
The information is available for download from Regin's website, www.regin.se.
Manual Corrigo E Ventilation, revision O
About the manual
5
Chapter 2 About Corrigo E
Corrigo E series comprises three model sizes: 8, 15 or 28 in-/outputs.
In each model of Corrigo E generation 2, all applications are loaded in a separate memory area. The
models have article number E...-S (where S stands for Second generation). From version 3.0, there
are models with two communication ports. By connecting one/two expansion controllers to port two
on these units, it is possible to increase the number of inputs and outputs. The 2-port Corrigo models
have article number E...2-S (where the number two stands for 2 ports). For more detailed
information, see chapter 17.
The controllers are available with or without front panel display and buttons. For units without front
panel display and buttons a separate, cable-connected terminal E-DSP with display and buttons is
available.
All configuration and normal handling can be done using the display and buttons or using the
configuration tool E tool, installed on a PC and connected via the communication cable E-cable.
News in version 3.1

Models with two ports that can control two VACON/Lenze/Omron/Emerson frequency
converters via Modbus communication. See chapter 17 and section 16.27.2.

The access level System is now called Admin to comply better with other Regin systems.

New start-up function which makes it possible to block automatic restart at power-up. See
section 16.28.10.

New function for preheating or precooling of the intake air via an underground intake
channel. See section 16.25.

New temperature sensor and pressure/flow control inputs for supervision. See section
3.2.3.

New function for setpoint compensation at pressure/flow control. Read more under ”Extra
compensation curve” in section 5.4.1.

New function for free heating which works as reverse free cooling. Read more under "Free
heating” below.

It is now possible to combine communication with a frequency converter via Modbus and
with an expansion unit. See section 16.27.2.
Application choice
On delivery, the main memory in the Corrigo is empty. All the application programs that can be run
in the Corrigo are located in a separate memory area.
On the first start-up, the controller will start a special program for downloading a suitable
application and suitable languages to the main memory.
For certain customised models, an application has already been selected when the product is
delivered. If so, the selected application will be started immediately.
Corrigo E Controller
08:01:01
00:00
Select application
with down arrow
First press OK to set the date and time. Use the up and down arrows to change values and the right
and left arrows to move between fields. When the date has been set, press OK and the cursor will
move to the scheduler. Set the time in the same way as the date and press OK to confirm.
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About Corrigo E
Manual Corrigo E Ventilation, revision O
Press down arrow to go to ”Application choices”.
Ventilation
Heating
Boiler
Expansion Unit 1
Expansion Unit 2
Use the up and down arrows to move the cursor in the left edge of the display to the application you
wish to load. Press right arrow to choose the selected application and go to Language choice.
Ventilation
Choose language
English
Accept changes:No
Press OK to choose language. Use the up and down arrows to move between languages and press
OK to confirm your choice.
When another language than English is chosen, both English and the selected language will be
loaded.
To make the final confirmation of the created programs and language choices, change No to Yes
and confirm by pressing OK.
After a few seconds, the display will show a start display in English for the chosen application.
After another few seconds, the display text will change to the selected language, if another language
than English has been selected.
Regulator vent. sys
08:06:03
09:32
System:Stopped
Sp: 19.5 Act: 20.1°C
Ventilation application
The temperature controller is based on a supply air PI-controller for heating control with a preprogrammed set of control modes. A number of different control functions as well as analogue and
digital in- and output functions can be bound to this controller. The choice of which functions are to
be used is free, the only restriction is the physical number of inputs and outputs of the different
models. The maximum number of I/Os is 3*28 (a 2-port Corrigo with two expansion controllers).
The Corrigo is designed for DIN-rail mounting.
The program for an air handling unit contains, apart from other things, the following functions:
Different temperature control modes
Supply air temperature control, with or without outdoor temperature compensation
Room temperature control (cascade controller).
Extract air temperature control (cascade controller).
Seasonal switching between supply air temperature control and room/extract air temperature
control.
Extra, separate temperature control circuit for after-heaters etc.
With control of:
Heat exchanger (Liquid connected- , plate- or rotating) or mixing dampers.
Heating coil; Water with frost protection or electric.
Chiller: Water-heated or DX in up to three steps.
Circulation pumps heating, cooling, exchanger.
Manual Corrigo E Ventilation, revision O
About Corrigo E
7
Fan control
1- or 2-speed supply air fans and extract air fans.
Frequency controlled supply and extract air fans with pressure or flow control, manual control or
external control from a VAV system. Pressure controlled supply air fan with slave connected extract
air fan (output dependent or flow dependent).
Humidity control
Either humidification or dehumidification, or both humidification and dehumidification.
Timer control
For starting and stopping the unit. Up to five timer outputs for control of external functions such as
lighting, doorlocks etc.
Demand control
In buildings with strongly varying occupancy the fan speeds or mixing dampers can be controlled
by the air quality measured by a CO2/VOC sensor.
Support control
When using the control function room control or extract air temperature control, it is possible to
utilise support-heating and/or support-cooling. Minimum running time is settable 0…720 minutes.
(factory setting 20 minutes).
Free cooling
The function is used during the summer to cool the building during the night using cool outdoor air
thereby reducing the need to run chillers during the day. The function can also be activated during
daytime if the temperature so allows.
Enthalpy control for free cooling/heating
This function is used to override the mixing damper to increasing recirculation depending on the
result of the enthalpy calculation.
Cooling recovery
If the extract air is colder than the outdoor air and cooling is required, the heat exchanger control is
reversed in order to return the cool extract air. This function also activates the heating function
“Free heating” (see section titled “Free heating” below).
Free heating
If the extract air is cooler than the outdoor air and heating is required, outdoor air will primarily be
used.
Recirculation control
Recirculation of air using a supply air fan and recirculation damper, with or without temperature
control.
Pretreatment
Preheating or precooling of the intake air via an underground intake channel.
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About Corrigo E
Manual Corrigo E Ventilation, revision O
Step controllers Heating/Cooling
As an alternative to the analogue control of ”Actuator heating Y1” or ”Actuator cooling Y3”, step
controllers can be used to control heating or cooling in steps using digital control.
Corrigo E hardware overview
Model
8
8D
15
15D
28
28D
Analogue Inputs
2
2
4
4
4
4
Digital Inputs
3
3
4
4
8
8
Universal Inputs
-
-
-
-
4
4
Analogue Outputs
1
1
3
3
5
5
Digital Outputs
2
2
4
4
7
7
RS485*
Yes
Yes
Yes
Yes
Yes
Yes
LON
Option
Option
Option
Option
Option
Option
WEB (TCP/IP)
Option
Option
Option
Option
Option
Option
2-port
No
No
Option
Option
Option
Option
Display
No
Yes
No
Yes
No
Yes
Ext. display
Option
No
Option
No
Option
No
*Communication port RS485 is not available for option WEB (TCP/IP). However, a 2-port Corrigo
with TCP/IP and RS485 can be selected, where RS485 is used for expansion controllers etc.
Corrigo E model overview
Model with display
Model without display
Description
E8D-S, E15D-S, E28D-S
E8-S, E15-S, E28-S
Standard controller with RS485
port
E8D-S-LON, E15D-S-LON,
E28D-S-LON
E8-S-LON, E15-S-LON,
E28-S-LON
Controller with both LON and
RS485 ports
E8D-S-WEB, E15D-S-WEB,
E28D-S-WEB
E8-S-WEB, E15-S-WEB.
E28-S-WEB
Controller with TCP/IP port and
built-in webserver
E152D-S, E282D-S
E152-S. E282-S
Controller with two RS485 ports
for connection of expansion
units
E152D-S-WEB, E282D-SWEB
E152-S-WEB, E282-S-WEB
Controller with RS485 port and
built-in webserver. For
connection of expansion units.
Technical data
Protection class .................................................................................................................. IP20
Display........................................................ 4 rows of 20 characters. Background illumination.
LEDs
Yellow ....................................................................................................... Settable parameter
Red ............................................................................................................... Alarm indication
Clock ..................................................................Year base 24 hour clock with battery backup.
Automatic summer-/winter-time changeover.
Operating system ..........................................................................................................EXOreal
Supply voltage .................................................... 24 V AC ±15%, 50…60 Hz or 20…36 V DC
Power consumption ....................................... 5 VA, 3 W (DC), model WEB: 9 VA, 5 W (DC)
Dimensions .................................................................... 148x123x60 (WxHxD incl. terminals)
Casing .......................................................................... Standard Euronorm (8.5 modules wide)
Mounting ................................................................................................................ On DIN-rail
Operation
Manual Corrigo E Ventilation, revision O
About Corrigo E
9
Climatic conditions according to IEC 721-3-3 ........................................................ Class 3k5
Ambient temperature ...................................................................................................0...50°C
Ambient humidity .............................................................................................. Max 95% RH
Mechanical requirements according to IEC721-3-3 ..............................................Class 3M3
Vibration .......................................................... IEC60068-2-6, Test FC, vibration Sinusoidal
Shock ................................................................................................ IEC60068-2-27, Test Ea
Transport
Climatic conditions according to IEC 721-3-2 ........................................................ Class 2k3
Ambient temperature ............................................................................................... -20...70°C
Ambient humidity .............................................................................................. Max 95% RH
Mechanical requirements according to IEC721-3-2 ..............................................Class 2M2
Vibration .......................................................... IEC60068-2-6, Test FC, vibration Sinusoidal
Shock ................................................................................................ IEC60068-2-27, Test Ea
Free fall.............................................................................................IEC60068-2-27, Test Ed
Storage
Climatic conditions according to IEC 721-3-1 ........................................................ Class 1k3
Ambient temperature .............................................................................................. -20...70°C
Ambient humidity .............................................................................................. Max 95% RH
Battery
Type .................................................................................... Replaceable Lithium cell, CR2032
Battery life ................................................................................................... Better than 5 years
Warning .................................................................................................... Low battery warning
Battery backup ............................................................................... Memory and real time clock
Communication
EXOline Port 1, insulated via a built-in RS485 contact.
EXOline Port 2, insulated via a built-in RS485 contact (only 2-port Corrigo models).
The basic version of Corrigo E can communicate with Modbus. You do not need an activation code.
Corrigo E can be ordered with a communication port for TCP/IP or LON.
CE-marking
Conforms with the EMC standards: CENELEC EN61000-6-3:2001, CENELEC EN61000-61:2001.
Inputs
Analogue inputs AI.............................................. Settable 0…10 V DC or PT1000, 12 bit A/D
Digital inputs DI .......................................................................................Potential-free closure
Universal inputs UI...........................................Can be set to act as either an analogue input or
...
a digital input with specifications as above
Outputs
Analogue outputs AO ............................................... Configurable 0…10 V DC; 2…10 V DC;
...
10…0 V DC or 10…2 V DC
8 bit D/A short-circuit protected
Digital outputs DO ...........................................Mosfet outputs, 24 V AC/DC, 2 A continuous.
Totally max 8 A.
Options
LON ................................................................... FT3150, gives a second communication route
WEB (TCP/IP-port) .............................. Replaces RS485 for EXOline (Port 1) communication
2-port Corrigo models ........................ Two serial ports or one serial port and one TCP/IP port
External hand terminal, E-DSP ........................... For use with Corrigo E units without display
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About Corrigo E
Manual Corrigo E Ventilation, revision O
Position of the terminals on Corrigo E
Manual Corrigo E Ventilation, revision O
About Corrigo E
11
Chapter 3 Installation and wiring
3.1 Installation
Corrigo E can be mounted in a DIN-standard casing (minimum 9 modules), on a DIN-rail in a
cabinet or, using a suitable front-mounting kit, in a cabinet door or other control panel.
Ambient temperature: 0…50°C.
Humidity: Max. 90 % RH, non-condensing.
The picture below shows a wiring example for Corrigo E28.
3.2 Wiring
At the end of this chapter there are wiring diagrams showing the factory set configuration. There are
also empty wiring diagrams. Since the function of most of the inputs and outputs depends on the
programming of the unit the final wiring diagram cannot be filled in until the installer has decided
how to use the inputs/outputs. It is important to make sure that the wiring is correctly done and in
accordance with the instructions given in this manual.
3.2.1 Supply voltage
24 V AC ±15%, 50…60 Hz or 20…36 V DC
If the Corrigo E and the actuators connected to it share the same transformer it is essential that the
same transformer-pole is used as reference for all the equipment. Failure to do so will prevent the
equipment from functioning as intended and may also lead to damages.
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Installation and wiring
Manual Corrigo E Ventilation, revision O
3.2.2 Inputs and outputs
The list of input and output functions in section 3.2.3 is a handy instrument to help you keep track
of which inputs and outputs you will need to configure.
Analogue inputs
Analogue inputs must refer to an Agnd terminal placed in the same terminal block as the input being
wired.
Analogue inputs can, depending on the configuration, be used for either PT1000 temperature
sensors or for 0…10 V DC analogue input signals, for example from a pressure transmitter.
Digital inputs
Digital inputs must refer to +C on terminal 4. Digital inputs may only be wired to voltage-free
contacts. Any external voltage applied to a digital input may harm the unit. The input signal can be
set to either NO or NC.
Universal inputs
A universal input can be configured to act as either an analogue input or as a digital input.
A universal input configured as an analogue input can, depending on the configuration, be used for
either PT1000 temperature sensors or for 0…10 V DC analogue input signals, for example from a
pressure transmitter.
Universal inputs configured as an analogue input must refer to an Agnd terminal placed in the same
terminal block as the input being wired.
A universal input configured as a digital input must, just like other digital inputs refer to C+ on
terminal 4. It may only be wired to voltage-free contacts.
Analogue outputs
Analogue outputs must refer to the Agnd terminal placed in the AO terminal block.
All analogue outputs can be individually set to any one of the following signals:
0…10 V DC
2…10 V DC
10…0 V DC
10…2 V DC
If the Corrigo E and the actuators connected to it share the same transformer it is essential that the
same transformer-pole is used as reference for all the equipment. Failure to do so will prevent the
equipment from functioning as intended and may also lead to damages.
Digital outputs
Digital outputs should normally refer to GDO on terminal 10. GDO is internally connected to G on
terminal 1 and supplies 24 V AC or DC depending on the choice of supply voltage.
All the digital outputs are controlled by MOSFET transistors. The outputs are internally connected
with G0 and can deliver max 2 A per output. However, the total power for all the DOs must not be
over 8 A.
A number of different wiring alternatives are possible depending on the type of supply voltage to
the Corrigo and the relay type.
Manual Corrigo E Ventilation, revision O
Installation and wiring
13
24 V AC supply and 24 V AC relays
24 VAC
L
N
G
G0
10
11
12
24 V DC supply and 24 V DC relays
24 V DC
+
-
+
-
+
-
+
-
G
G0
10
11
12
24 V DC
24 V AC supply and 24 V DC relays
+
24 VAC
14
Installation and wiring
+
-
+
-
+
-
L
N
G
G0
10
11
12
Manual Corrigo E Ventilation, revision O
24 VAC
24 V DC supply and 24 V AC relays
L N
24 V DC
+
-
G
G0
10
11
12
3.2.3 Input and outputlists
The lists below are intended to be used during commissioning to help you keep track of the desired
input and output functions.
The left column contains a description of the in-/output signal, the middle column displays the name
of the corresponding signal in E tool and the right column shows the text displayed in the Corrigo E
controller.
Analogue input signal

Description
E tool
Display
Outdoor temperature sensor
Outdoor Temp
Outdoortemp
Supply air temperature sensor
Supply Air Temp
Supplytemp
Extract air temperature sensor
Extract Air Temp
Extracttemp
Exhaust air temperature sensor
Exhaust Air Temp
Exhausttemp
Room temperature sensor 1
Room Temp 1
Roomtemp1
Room temperature sensor 2
Room Temp 2
Roomtemp2
CO2 sensor, 0…10 V DC
CO2 Sensor
CO2
Pressure transmitter supply air, 0…10
V DC
SAF Pressure
SAF pressure
Pressure transmitter extract air, 0…10
V DC
EAF Pressure
EAF pressure
De-icing sensor, heat exchanger
Deicing Temp
Deicingtemp
Frost protection sensor
Frost Protection Temp
Frost prot. temp
Room humidity sensor
Humidity Room
Humidity room
Duct humidity sensor
Humidity Duct
Humidity duct
Outdoor humidity sensor
Humidity Outdoor
Humidity out
Temperature sensor, Extra controller
Extra unit temp
Extra unit temp
External control supply air fan
External control SAF
SAF ext. Ctrl
External control extract air fan
External control EAF
EAF ext. Ctrl
Pressure transmitter supply air 2
SAF Pressure 2
SAF pressure 2
Intake temperature
Intake Temp
Intaketemp
Manual Corrigo E Ventilation, revision O
Installation and wiring
15

Description
E tool
Display
Extra temperature sensor 1
Extra Sensor Temp 1
Extrasensor
Extra temperature sensor 2
Extra Sensor Temp 2
Extrasensor 2
Extra temperature sensor 3
Extra Sensor Temp 3
Extrasensor 3
Extra temperature sensor 4
Extra Sensor Temp 4
Extrasensor 4
Extra temperature sensor 5
Extra Sensor Temp 5
Extrasensor 5
Extra pressure transmitter supply air
Extra SAF Pressure
Extra SAF Pressure
Extra pressure transmitter extract air
Extra EAF Pressure
Extra EAF Pressure
Description
E tool
Display
Filter guard, supply air
Filter Guard 1
Filter alarm 1
Filter guard, extract air
Filter Guard 2
Filter alarm 2
Digital input signal

Run-indication/alarm circulation pump, Heat Pump Indication
Heating
P1-Heating
Run-indication/alarm circulation pump, Exchange Pump Indication
exchanger
P1-Exchanger
Run-indication/alarm circulation pump, Cooling Pump Indication
Cooling
P1-Cooling
Fire alarm
Fire Alarm
Fire alarm
Fire damper end-switch monitoring
Fire Damper Indication
Fire damper-ind
Extended operation, Normal
Extended Operation, Normal
Ext run 1/1
Extended operation, Reduced
Extended Operation, Reduced Ext run 1/2
External switch
External Switch
External switch
External alarm
External Alarm
External alarm
Flow switch
Flow Switch
Flow guard
Rotation guard exchanger
Exchange Rotation
Rot.sent.exch
Run-indication/alarm supply air fan
SAF Indication
SAF-Ind
Run-indication/alarm extract air fan
EAF Indication
EAF-Ind
Deicing thermostat exchanger
Deicing
De-icing
Frost protection thermostat water heater Frost Protection
Frostprotection
High temperature limit switch
Overheated Electric heater
Overheatprotection
Recirculation start
Recirculation
Recirculation
Change over
Change over
Change over
The universal inputs on Corrigo E28 can, individually, be configured as either analogue inputs using
any of the analogue input signals above or as digital inputs using any of the digital inputs above.
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Installation and wiring
Manual Corrigo E Ventilation, revision O
Analogue output signal

Description
E tool
Display
Y1 Actuator Heating
Heating Y1
Y1-Heating
Y2 Actuator Exchanger
Exchanger Y2
Y2-Exchanger
Y3 Actuator Cooling
Cooling Y3
Y3-Cooling
Frequency converter, supply air fan
SAF
SAF
Frequency converter, extract air fan
EAF
EAF
Actuator Humidity control
Humidity
Y6-Humidity
Split of any one of temp outputs Y1, Y2 Split
or Y3
Sequence
Extra controller
Extra unit control
ExtraUnitCtrlVa
Y1 Heating / Y3 Cooling, Change-over
output
Y1 Heating/Y3 Cooling
Y1-Heat/Y3-Cool
Y4 Extra Sequence
Extra Sequence Y4
Y4-Extra Sequen
Description
E tool
Display
Start/stop Supply air fan Normal
SAF Start 1/1 Normal Speed
SAF 1/1-speed
Start/stop Extract air fan Normal
EAF Start 1/1 Normal Speed
EAF 1/1-speed
Start/stop Supply air fan Reduced
SAF Start 1/2 Reduced Speed SAF 1/2-speed
Start/stop Extract air fan Reduced
EAF Start 1/2 Reduced Speed EAF 1/2-speed
Start/stop circulation pump, heating
Heating Pump Start
P1-Heating
Fire damper
Fire Damper
Fire damper
Sum alarm A- and B-alarm
Sum Alarm
Sum alarm
Sum alarm A-alarm
Sum Alarm A
A-sum alarm
Sum alarm B-alarm
Sum Alarm B
B-sum alarm
Start/stop circulation pump, cooling
Cooling Pump Start
P1-Cooling
Start/stop circulation pump, liquid
exchanger
Exchanger Start
P1-Exchanger
Activation-signal SAF frequency
converter
SAF Freq Start
SAF-frequence
Activation-signal EAF frequency
converter
EAF Freq Start
EAF-frequence
Activate heating
Heating Activate
Heat start
Activate cooling
Cooling Activate
Cool start
Activate exchanger
Exchanger Activate
Exch start
Exhaust air close-off damper
Exhaust Air Damper
Exhaust air d
Fresh air close-off damper
Outdoor Air Damper
Fresh air dam
Recirculation damper
Recirculation Air Damper
Recirc. dampe
Heating 3-position actuator, increase
Heating Increase
Heat-inc
Heating 3-position actuator, decrease
Heating Decrease
Heat-dec
Exchanger 3-position actuator, increase
Exchanger Increase
Exch-inc
Digital output signal

Manual Corrigo E Ventilation, revision O
Installation and wiring
17

18
Installation and wiring
Description
E tool
Display
Exchanger 3-position actuator, decrease Exchanger Decrease
Exch-dec
Cooling 3-position actuator, increase
Cooling Increase
Cool-inc
Cooling 3-position actuator, decrease
Cooling Decrease
Cool-dec
Step controller heating, step 1
Heat Step 1
Heat step1
Step controller heating, step 2
Heat Step 2
Heat step2
Step controller heating, step 3
Heat Step 3
Heat step3
Step controller heating, step 4
Heat Step 4
Heat step4
Step controller cooling, step 1
Cool Step 1
Cool step1
Step controller cooling, step 2
Cool Step 2
Cool step2
Step controller cooling, step 3
Cool Step 3
Cool step3
Extra time channel 1
Time Channel 1
Timer 1
Extra time channel 2
Time Channel 2
Timer 2
Extra time channel 3
Time Channel 3
Timer 3
Extra time channel 4
Time Channel 4
Timer 4
Extra time channel 5
Time Channel 5
Timer 5
Humidity
Humidity/DeHumidity
Humidity
External controller active
Extra unit active
ExtraUnitActi
Heating/cooling step 1
Heat/cool step 1
HeatCoolStep1
Heating/cooling step 2
Heat/cool step 2
HeatCoolStep2
Heating/cooling step 3
Heat/cool step 3
HeatCoolStep3
Free cooling operation
Free cool run
Free cool run
Pretreatment
Pretreatment
Pretreatment
Manual Corrigo E Ventilation, revision O
Wiring diagram Corrigo E28-S
(default in- and output configuration)
(See also picture of the position of the terminals on page 11)
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
Start/stop supply air fan (SAF) 1/1-speed
58
Net-
12
DO2
Start/stop extract air fan (EAF) 1/1-speed
59
Egnd
13
DO3
Start/stop supply air fan (SAF) 1/2-speed
14
DO4
Start/stop extract air fan (EAF) 1/2-speed
71
DI1
Filter guard, supply air and extract air
15
DO5
Start/stop Circulation pump, Heating
72
DI2
Run indication /alarm, Circ. pump Heating
16
DO6
Fire damper
73
DI3
Run indication /alarm, Circ. pump Cooling
17
DO7
Sum alarm A + B
74
DI4
Fire alarm
75
DI5
Fire damper end-switch monitoring
LON-connection (LON-versions only)
30
Agnd
Reference pole for analogue inputs AI
76
DI6
Extended running 1/1-speed
31
AI1
Outdoor temperature sensor
77
DI7
External alarm
32
AI2
Supply air temperature sensor
78
DI8
External switch
33
Agnd
Reference pole for analogue inputs AI
34
AI3
Extract air temperature sensor
90
Agnd
Reference pole for analogue outputs AO
35
AI4
Room temperature sensor 1
91
AO1
Y1 Actuator Heating
92
AO2
Y2 Actuator Exchanger
40
Agnd
Reference pole for universal inputs UI
93
AO3
Y3 Actuator Cooling
41
UI1
DI Run indication / Motor protection SAF
94
AO4
Not used
42
UI2
DI Run indication / Motor protection EAF
95
AO5
Not used
43
Agnd
Reference pole for universal inputs UI
44
UI3
De-icing sensor, heat exchanger
45
UI4
Frost protection sensor
Manual Corrigo E Ventilation, revision O
Installation and wiring
19
Wiring diagram Corrigo E15-S
(default in- and output configuration)
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
Start/stop supply air fan (SAF) 1/1-speed
58
Net-
12
DO2
Start/stop extract air fan (EAF) 1/1-speed
59
Egnd
13
DO3
Start/stop Circulation pump, Heating
14
DO4
Sum alarm A + B
71
DI1
Run indication / Motor protection SAF
72
DI2
Run indication / Motor protection EAF
LON-connection (LON-versions only)
30
Agnd
Reference pole for analogue inputs AI
73
DI3
Run indication /alarm, Circ. pump Heating
31
AI1
Outdoor temperature sensor
74
DI4
Extended running
32
AI2
Supply air temperature sensor
33
Agnd
Reference pole for analogue inputs AI
90
Agnd
Reference pole for analogue outputs AO
34
AI3
Frost protection sensor
91
AO1
Y1 Actuator Heating
35
AI4
Room temperature sensor 1
92
AO2
Y2 Actuator Exchanger
93
AO3
Y3 Actuator Cooling
Wiring diagram Corrigo E8-S
(default in- and output configuration)
1
G
2
G0
3
20
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
Start/stop supply air fan (SAF) 1/1-speed
58
Net-
12
DO2
Start/stop Circulation pump, Heating
59
Egnd
30
Agnd
Reference pole for analogue inputs AI
71
DI1
Run indication / Motor protection SAF
31
AI1
Outdoor temperature sensor
72
DI2
Run indication /alarm, Circ. pump Heating
32
AI2
Supply air temperature sensor
73
DI3
High temp. limit switch / Frost prot. thermostat
90
Agnd
Reference pole for analogue outputs AO
91
AO1
Y1 Actuator Heating
Installation and wiring
LON-connection (LON-versions only)
Manual Corrigo E Ventilation, revision O
Empty wiring diagram Corrigo E28-S
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
58
Net-
12
DO2
59
Egnd
13
DO3
14
DO4
71
DI1
15
DO5
72
DI2
16
DO6
73
DI3
17
DO7
74
DI4
75
DI5
76
DI6
30
Agnd
Reference pole for analogue inputs AI
31
AI1
77
DI7
32
AI2
78
DI8
33
Agnd
34
AI3
90
Agnd
35
AI4
91
AO1
92
AO2
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
LON-connection (LON-versions only)
Reference pole for analogue inputs AI
40
Agnd
93
AO3
41
UI1
Reference pole for universal inputs UI
94
AO4
42
UI2
95
AO5
43
Agnd
44
UI3
45
UI4
Reference pole for analogue outputs AO
Reference pole for universal inputs UI
Empty wiring diagram Corrigo E15-S
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
58
Net-
12
DO2
59
Egnd
13
DO3
14
DO4
71
DI1
72
DI2
73
DI3
74
DI4
90
Agnd
30
Agnd
31
AI1
Reference pole for analogue inputs AI
32
AI2
33
Agnd
34
AI3
91
AO1
35
AI4
92
AO2
93
AO3
Reference pole for analogue inputs AI
Manual Corrigo E Ventilation, revision O
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
LON-connection (LON-versions only)
Reference pole for analogue outputs AO
Installation and wiring
21
Empty wiring diagram Corrigo E8-S
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
4
+C
+24 V DC. Reference for digital inputs DI.
53
E
10
GDO
Reference for digital outputs DO.
57
Net+
11
DO1
58
Net-
12
DO2
59
Egnd
30
Agnd
71
DI1
31
AI1
72
DI2
32
AI2
73
DI3
90
Agnd
91
AO1
Reference pole for analogue inputs AI
RS485 EXOline / Modbus (not in
WEB (TCP/IP) models)
LON-connection (LON-versions only)
Reference pole for analogue outputs AO
Empty wiring diagram Corrigo E282-S
1
G
2
G0
3
4
22
+C
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
+24 V DC. Reference for digital inputs DI.
53
E
54
B
10
GDO
55
A
11
DO1
Reference for digital outputs DO.
56
N
12
DO2
57
E
13
DO3
14
DO4
71
DI1
15
DO5
72
DI2
16
DO6
73
DI3
17
DO7
74
DI4
75
DI5
76
DI6
77
DI7
78
DI8
30
Agnd
31
AI1
32
AI2
33
Agnd
34
AI3
90
Agnd
35
AI4
91
AO1
92
AO2
93
AO3
94
AO4
95
AO5
40
Agnd
41
UI1
42
UI2
43
Agnd
44
UI3
45
UI4
Reference pole for analogue inputs AI
RS485 EXOline / Modbus (Port 1)
RS485 EXOline / Modbus (Port 2)
Reference pole for analogue inputs AI
Reference pole for universal inputs UI
Reference pole for analogue outputs AO
Reference pole for universal inputs UI
Installation and wiring
Manual Corrigo E Ventilation, revision O
Empty wiring diagram Corrigo E152-S
1
G
2
G0
3
Supply voltage 24 V AC or 24 V DC,
±15%. 50/60 Hz
50
B
51
A
Protective earth
52
N
53
E
54
B
55
A
4
+C
+24 V DC. Reference for digital inputs DI.
10
GDO
Reference for digital outputs DO.
11
DO1
56
N
12
DO2
57
E
13
DO3
14
DO4
71
DI1
72
DI2
30
Agnd
73
DI3
31
AI1
74
DI4
32
AI2
33
Agnd
90
Agnd
34
AI3
91
AO1
35
AI4
92
AO2
93
AO3
Reference pole for analogue inputs AI
Reference pole for analogue inputs AI
Manual Corrigo E Ventilation, revision O
RS485 EXOline / Modbus (Port 1)
RS485 EXOline / Modbus (Port 2)
Reference pole for analogue outputs AO
Installation and wiring
23
Chapter 4 Commissioning
General
Before the Corrigo can be used it must be configured, inputs and outputs must be assigned and all
relevant parameters must be set.
All commissioning can be done using the Corrigo front panel display and buttons or using the
display unit E-DSP.
E tool
The best way however, is to configure the Corrigo E by using E tool.
E tool is a PC-based configuration program specially developed to simplify the commissioning of
the Corrigo E series.
When using E tool the whole configuration and all settings can be done on the computer and then be
downloaded to the Corrigo. An infinite number of different configurations can be saved in computer
memory for later use.
A communication cable is required in order to configure Corrigo E. E-CABLE-USB, E-CABLE2USB or E-CABLE-RS232 are used for controllers featuring RS485 communication, and E-CABLETCP/IP for controllers with a TCP/IP port.
The Corrigo must be powered up and the application selected in order for it to be configured.
4.1 How to do it
For configuration using E tool, see the E tool manual.
For configuration using the front panel there are two ways to go depending on how much help you
need.
Option 1:

Jump straight to chapter 7 and 8, Display, LEDs and buttons and Access rights.

After learning how to use the buttons and menu system, connect power to your Corrigo,
log on as Admin and go to the menu "Configuration".

For the time being, skip the configuration menu In-/Outputs and start by configuring
control functions.

Run through the configuration menus in order and set whatever functions and parameters
you wish to include. Use chapter 6 of this manual for reference.
Keep track of which inputs and outputs you will need. To help you, there is a list of input
and output functions provided in chapter 3, (3.2.3 Input / Output list.)

Finally, configure In-/Outputs.

Exit the "Configuration" menu and go to "Settings".

Set the control values in "Settings".

Set the clock and scheduler functions in "Time Settings".

Set the control setpoints in temperature and air control as well as in humidity control if
humidity control has been configured
Your Corrigo should now be ready to run.
24
Commissioning
Manual Corrigo E Ventilation, revision O
Option 2:
Read this manual in the order given below: The manual has been designed to act as a guide through
the commissioning. The last chapters of the manual, not listed below, cover menus and functions
that are not used during commissioning.
Functional description
Start by reading chapter 5. Functional description below. Some functions are essential to the
working of the unit and must be included. Others are more of the nature of optional extras which
can be excluded.
At the end of each function description there is a table of the necessary inputs and outputs to
implement the function. At the end of the manual there is a list of all the analogue and digital inputs
and outputs. As you read, mark in the list the inputs and outputs you will be using for the
application you are building. Note that the universal inputs in Corrigo E28 can, individually, be
configured as either analogue or digital inputs.
Display, buttons and LEDs
Read chapter 7 on how to use the front panel buttons to navigate the Corrigo E menu system.
Access rights
Chapter 8. Learn how to log on to the Corrigo E.
Configuration
Chapter 16. Configuration.
Connect power to the Corrigo. Using the buttons and menu system, go through the configuration
menus covering the functions you wish to use.
On delivery the units already have the inputs and outputs assigned to various functions. These can,
of course, be changed. In chapter 3 Installation and wiring there are two sets of wiring diagrams,
one set showing the pre-configured input / output configuration and one set where you can fill your
own configuration choices.
Settings
Chapter 15
Set the control parameters, P-band, I-time for the temperature control.
Set the control parameters for the pressure control if you have pressure- or flow- controlled fans.
Set the control parameters for the humidity control if activated.
Set the alarm parameters; alarm levels and delay times.
Time settings
Chapter 13
Set the clock and calendar functions.
Setpoints
Chapters 10, 11 and 12:
Set all the setpoints for all active control loops.
Manual/Auto
Chapter 14
Learn to use manual control. Very useful for testing out your system.
Manual Corrigo E Ventilation, revision O
Commissioning
25
Other functions
Chapter 18
Alarm handling etc.
26
Commissioning
Manual Corrigo E Ventilation, revision O
Chapter 5 Functional description
5.1 Temperature control
General
Corrigo E has a choice of the following control modes:
1.
Supply air control
2.
Outdoor temperature compensated supply air control
3.
Cascaded room temperature control
4.
Cascade connected extract air temperature control
5.
Outdoor temperature dependent switching between room control and supply air control
6.
Outdoor temperature dependent switching between extract air control and supply air
control
The supply air temperature controller is reverse acting, i. e. the output will increase for decreasing
temperature. The controller is a PI-controller with settable P-band and I-time.
In the first two modes the supply air temperature will be controlled using the supply air temperature
and the user setpoint values as control inputs.
In modes three and four the supply air is controlled as part of a cascade controller together with the
room/extract temperature controller. The room/extract temperature offset will dictate the supply air
temperature setpoint.
Mode five and six vary according to the outdoor temperature: Supply air control in winter and
cascaded room control or cascaded extract air control in summer.
In applications with mixing dampers instead of heat exchanger the signal for the damper control will
be reversed compared to the signal for heat exchanger control i. e. decreasing signal on increasing
heat demand. This is done automatically on configuring the exchanger output = dampers.
The heater can be either a hot water heater battery or an electric heater.
Outputs
The supply air controller output is split between one or more of the output blocks "Heating Y1",
"Exchanger Y2" and "Cooling Y3". Each of these output blocks can be bound to either an analogue
0…10 V DC output or to two digital 3-position increase/decrease outputs.
Each output block has two parameters for setting the control range:
Heating Controller Output signal (HCOut) at which the output should be 0 %
Heating Controller Output signal (HCOut) at which the output should be 100 %
These settings are used to establish the output activation order and to split the P-band between the
outputs.
Example:
0 % Cooling at HCOut = 30 %
100 % Cooling at HCOut = 0 %
0 % heat exch. at HCOut = 32 %
100 % heat exch. at HCOut = 50 %
Manual Corrigo E Ventilation, revision O
Functional description
27
0 % Heating at HCOut = 54 %
100 % Heating at HCOut = 100 %
Output signal
100%
0%
Controller
signal
100%
Cooling
Heat
exch.
Heating
54%
50%
32%
30%
0%
Heat demand
In addition to these three, it is possible to connect another anologue output signal to control an
optional sequence, Y4 Extra sequence. "Y4 Extra sequence" is set in the same way as above. You
can also choose if you want the output to be affected by the enthalpy control and/or the cooling
recovery.
0 % at HCOut = 0 %
100 % at HCOut = 0 %
It is also possible to split one of the three analogue outputs heating, heat exchanger or cooling into
two equal parts to give a fourth output sequence for temperature control.
5.1.1 Control modes
1. Supply air control
The supply air temperature is kept at the setpoint value by controlling the output signals for
"Heating Y1", "Exchanger Y2", "Cooling Y3" and "Extra sequence Y4". A single PI control loop is
used.
The setpoint value is set using the front panel or alternatively using an external setpoint device.
Alarms which are activated when the supply air temperature is too high or too low are active.
Alarm for control offset of the supply air temperature is active.
2. Outdoor temperature compensated supply air control
The supply air temperature setpoint is outdoor temperature compensated using a control curve with
6 node points.
The supply air temperature is kept at the setpoint value by controlling the output signals for "Y1
Heating", "Y2 Heat exchanger", "Y3 Cooling" and "Y4 Extra sequence". A single PI control loop is
used.
Alarms which are activated when the supply air temperature is too high or too low are active.
Alarm for control offset of the supply air temperature is active.
28
Functional description
Manual Corrigo E Ventilation, revision O
3. Cascaded room temperature control
Cascade control of room temperature and supply air temperature to achieve a constant, settable
room temperature. The room controller output signal generates the supply air controller’s setpoint
value.
One or two room sensors can be connected. If two sensors are connected the average of their values
will be used. The number of room sensors is detected automatically. The room temperature is kept
at the setpoint value by controlling the output signals for "Y1 Heating", "Y2 Heat exchanger", "Y3
Cooling" and "Y4 Extra sequence". Two PI loops are used.
The room setpoint value is set using the front panel or alternatively using an external setpoint
device.
4. Cascaded extract air temperature control
Cascade control of extract air temperature and supply air temperature to achieve a constant, settable
room temperature. The extract air controller output signal generates the supply air controller’s
setpoint value.
The extract air temperature is kept at the setpoint value by controlling the output signals for "Y1
Heating", "Y2 Heat exchanger", "Y3 Cooling" and "Y4 Extra sequence". Two PI loops are used.
The extract air setpoint value is set using the front panel or alternatively using an external setpoint
device.
5. Outdoor temperature dependent switching between supply air temperature
control and room temperature control
When the outdoor temperature is lower than a settable limit (winter), outdoor compensated supply
air temperature control will be active, otherwise (summer) cascaded room temperature control.
6. Outdoor temperature dependent switching between supply air temperature
control and extract air temperature control
When the outdoor temperature is lower than a settable limit (winter), outdoor compensated supply
air temperature control will be active, otherwise (summer) cascaded room temperature control.
In- and outputs
1
2
3
4
5
6 Control modes
AI AI AI AI AI AI Supply air sensor
AI AI Outdoor temperature sensor
AI
AI
Room sensor
AI
AI
AI Extract air sensor
AO AO AO AO AO AO Y1 Heating 0…10 V DC **
AO AO AO AO AO AO
Y2 Exchanger 0…10 V DC
**
AO AO AO AO AO AO Y3 Cooling 0…10 V DC **
AO AO AO AO AO AO
Y4 Extra sequence 0...10 V
DC
AO AO AO AO AO AO
Extra split Y1, Y2 or Y3
0…10 V DC (optional)
AO AO AO AO AO AO
Y1 Heating/Y3 Cooling
Change-over (option)
DO DO DO DO DO DO Heating 3-pos. increase **
DO DO DO DO DO DO Heating 3-pos. decrease **
DO DO DO DO DO DO Exch. 3-pos. increase **
DO DO DO DO DO DO Exch. 3-pos. decrease **
Manual Corrigo E Ventilation, revision O
Functional description
29
1
2
3
4
5
6 Control modes
DO DO DO DO DO DO Cooling 3-pos. increase **
DO DO DO DO DO DO Cooling 3-pos. decrease **
** Choose output type depending on the actuator type: Either AO 0…10 V or DO 3-position
increase/decrease.
5.1.2 Heater types
5.1.2.1 Water heating
Control
When the unit is in running mode the heating valve is controlled by the analogue output ”Y1
Heating” or by two digital outputs “Heating 3-pos. actuator, increase” and “Heating, 3-pos. actuator,
decrease”.
Frost protection
The heater return water temperature is measured using the analogue input ”Frost protection sensor”.
Low temperatures will generate an internal, proportional signal that is used to force the heating
valve open thereby preventing freeze-up of the heater.
The internal signal (“Internal signal”) will begin to rise as the frost protection temperature falls
below “Alarm level” + “Prop. Band” in order to reach 100 % output when the signal has fallen to
“Alarm level”.
When ”Internal signal” reaches 100 % or the digital input ”Frost protection” is activated, the unit is
shut down, the heating output is set to completely open mode and an alarm is activated. The unit is
restarted when the alarm has been acknowledged and the temperature for the frost protection sensor
has risen above “Alarm level” + “Prop. Band”.
The frost protection alarm level is set in the menu Settings/Alarm settings/Alarm limit.
“Internal signal”
Prop.band
100 %
0%
Alarm level
“Frost protection sensor”
Shutdown mode
If frost protection is activated the controller will go into ”Shutdown mode” when the running mode
switches to ”Off”. The shutdown controller will control the heating output to maintain a constant
settable temperature at the frost protection sensor.
30
Functional description
Manual Corrigo E Ventilation, revision O
5.1.2.2 Electric heating
Control
The heating is controlled using the analogue output ”Y1 Heating”. On activation of the digital input
“High temp limit switch” the unit will be shut down, either according to the stop sequence described
in section Start/stop of unit or as an emergency shutdown. The unit will restart after the alarm has
been acknowledged and “High temp limit switch” has reset. Note that activation of the input signal
“Flow switch” will also stop the unit.
Control voltage
Relay el.
heating
High limit
thermostat
Corrigo
Contr.
voltage
Auxiliary
relay
Wiring suggestion high temp limit when using electric heating.
Contactors drawn inactivated.
Note: It is important that the high temperature thermostat is hardwired to disconnect the power to
the heater to ensure that the heating is shut down when the thermostat is activated even if the
Corrigo should be faulty.
5.1.2.3 Water heating and electric heating
The water heating is controlled by "Y1 Heating", and the electric heating is controlled by the
sequence "Split". Split (see the section Split of optional temp sequence) must always be set to
"Heating". On increasing heat demand, the water heating is first activated and then, if needed, the
electric heating.
Frost protection and overheating protection are both active. If "step controller heating" is used, the
function is tied to the output signal "Split".
5.1.2.4 Fast stop on overheating
If the function "fast stop on overheating" is active, the fans will be immediately stopped when there
is an overheating alarm, regardless of the set cool-down time.
In- and outputs
Water Electric
heating heating
AI
Frost protection sensor (optional)
DI**
Frost protection thermostat water
heater (optional)
DI
High temperature limit switch
DI
Flow switch (optional)
**Frost protection can also be created using the digital input “Frost protection thermostat water
heater” and an external thermostat. Activation of the input will force the running mode to Off and
an alarm will be activated. The heating output is set to completely open, the remaining control
outputs are set to zero.
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Frost protection thermostat cannot be combined with shutdown mode.
5.1.3 Heat exchangers
The heat exchanger unit can be set to one of the following alternatives:

Plate exchanger

Rotating exchanger

Liquid connected exchanger

Mixing dampers
Plate exchanger
Control
The airflow through the exchanger is controlled by a shut-off damper and a by-pass damper. Both
dampers are controlled by the same analogue output ”Y2 Heat 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.
Defrosting
De-icing is activated either when the digital input signal ”De-icing” is activated or when the value
of the analogue input ”De-icing thermostat Exchanger” falls below the de-icing limit (-3°C). It is
deactivated when the digital input is reset or the analogue input rises above the limit value plus a
settable differential.
On de-icing:
A PI-controller compares the de-icing setpoint with the signal ”De-icing Exchanger”. The lesser of
the output signal from this controller and the output from the ordinary controller is used as output to
the dampers.
Rotating exchanger
Control
Rotational speed is controlled by the analogue signal ”Y2 Heat exchanger” or by two digital outputs
“Exchanger 3-pos. actuator, increase” and “Exchanger, 3-pos. actuator, decrease”. A rotation
sentinel can be connected to the digital input ”Rotation sentinel Exchanger”. An alarm is generated
if this input is activated at the same time as the analogue output signal is higher than 1.0V.
Liquid connected exchanger
Control
A mixing valve in the exchanger circulation system is controlled by the analogue signal ”Y2 Heat
exchanger” or by two digital outputs “Exchanger 3-pos. actuator, increase” and “Exchanger, 3-pos.
actuator, decrease”.
The circulation pump (digital output "Start/stop circulation pump, liquid exchanger") is started as
soon as the actuator control signal exceeds 0.1 V and is stopped when the valve has been closed for
more than 5 minutes.
Defrosting
De-icing is activated either when the digital input signal ”De-icing” is activated or when the value
of the analogue input ”De-icing thermostat Exchanger” falls below the de-icing limit (-3°C). It is
deactivated when the digital input is reset or the analogue input rises above the limit value plus a
settable differential.
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On de-icing:
A PI-controller compares the de-icing setpoint with the signal ”De-icing Exchanger”. The lesser of
the output signal from this controller and the output from the ordinary controller is used as output to
the actuator.
Outdoor temp control of exchanger
Instead of using Y2 for analogue control of the heat exchanger it can be set to run on-off against
outdoor temperature. The function controls a digital output “Exch control”, which is activated when
the outdoor temperature falls below a set value.
Mixing dampers
Control
The analogue output signal ”Exchanger Y2”, or the two digital output signals "Exchanger 3position, increase" and "Exchanger 3-position, decrease", control two dampers for gradual mixing of
outdoor air and recirculated air. In this mode the output signal decreases with increasing heat
demand.
CO2
If demand controlled ventilation (see 5.4.2) is activated in combination with mixing dampers, and
the CO2-value rises above the setpoint value, the dampers will let in more outdoor air. The function
is controlled by a PI-controller. Factory settings: P-band 100ppm and I-time 100 seconds. These
values can only be changed in E tool.
Minimum limit
An outdoor air minimum limit for can be set using the front panel. The limit value is settable
between 0 and 100 %.
In- and outputs
Plate Rotating
Exch
Liquid
Dampers
AI
AI
AI
AI
Outdoor temp. sensor (optional, outd.
temp start)
DO
DO
DO
DO
Activate exchanger (optional, outd.
temp start)
AI
AI
De-icing sensor (optional)
DI
DI
De-icing signal (optional)
DI
Rotation sentinel (optional)
Start delay exchanger
This function delays the exchanger start at start-up of the unit.
100 % exchanger output at start-up
After the delay described above, the exchanger output will be 100 % during the set time.
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5.1.4 Types of chillers
Step controller Heating / DX cooling
As alternative or complement to the above mentioned analogue control, heating and cooling can be
activated in steps. The internal signal is then used to activate digital outputs for control of the
heaters/chillers. Up to four heater outputs and three cooler outputs can be configured. There are two
possible modes:
Sequential
Each output step has individually settable on and off values in percent of the control signal. The
number of steps is equal to the number of heater/chiller groups. Minimum on and off times can be
set, i.e. the minimum time the step has to be inactive or active for a change to occur.
Binary
The heater power outputs should be binary weighted (1:2:4:8 for heating, 1:2:4 for cooling). The
number of loads to be controlled is set. Thereafter the program will automatically calculate the
individual activation levels. Switching differential and minimum on/off times can be set. The
number of heating steps will be: 2no. of groups-1. In binary mode, the analogue output signal may be
used to fill out between the steps. The signal will go 0…100 % between the activation of each step.
The load connected to the analogue signal should have the same size as the smallest of the binary
groups. In the example below there are 4 heater groups (1:1:2:4) and the total number of heating
steps is eight.
1
Y1 = 1
2
1
1
4
2
1
Step controllers and Change-over
The digital output signals "Heating/cooling step 1", "Heating/cooling step 2" and "Heating/cooling
step 3" are used for step controllers during Change-over control (see section 5.1.12). They have the
same functions as other step controller outputs, but are set to either heating or cooling depending on
whether heating or cooling is required.
DX cooling with room or extract air control
If DX cooling is used in conjunction with room temperature control or extract air temperature
control, there are two configuration alternatives, DX cooling or DX cooling with exchanger control.
DX cooling without exchanger control
When running cascade control, the supply air controller setpoint is normally controlled by the
room/extract air controller output signal.
When DX cooling is activated, the cooling controller setpoint is lowered to five degrees (adjustable)
below the setpoint given by the room/extract air controller. This prevents the DX cooling from
being activated/deactivated too often.
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DX cooling with exchanger control
When running cascade control, the supply air controller setpoint is normally controlled by the
room/extract air controller output signal.
When DX cooling is activated, the cooling controller setpoint is lowered to five degrees (adjustable)
below the setpoint given by the room/extract air controller. This prevents the DX cooling from
being activated/deactivated too often. If the supply air temperature falls below the setpoint given by
the room/extract air controller, the heat exchanger output will be activated in order to try to maintain
the supply air setpoint given by the room/extract air controller. The output uses P-control with a Pband of half the setpoint lowering (adjustable, 2.5°C as default). The setpoint given by the
room/extract air controller cannot drop below the set min limit. When there is no longer a cooling
demand, the cooling controller setpoint will return to the value given by the room/extract air
controller.
Note: The function cannot be used if the exchanger signal controls a mixing damper.
Example:
The room controller gives a supply air setpoint of 16°C. If there is a cooling demand, the cooling
controller setpoint is lowered to 11°C (16 – 5) and DX cooling is activated. Should the supply air
temperature fall below 16°C, the exchanger output will be activated and reach 100 % output when
the supply air temperature has fallen to 13.5°C (16 - 2.5).
Blocking of DX cooling at low outdoor temperature
DX cooling can be blocked when the outdoor temperature is low. It is possible to block the three
cooling steps individually or to block all DX cooling. The temperature limits are adjustable (+13°C
default) and have a fixed one degree hysteresis.
When two DX cooling steps are used with binary function, the cooling effect is divided into three
steps. The desired blocking level can be set individually for each of these steps.
When three DX cooling steps are used with binary function, the cooling effect is divided into seven
steps. However, the controller still only has three blocking level settings. Therefore, Blocking step 1
will apply to binary steps 1 and 2, Blocking step 2 to binary steps 3 and 4, and Blocking step 3 to
binary steps 5, 6 and 7.
Blocking of DX cooling at low supply air fan speed
When DX cooling is used in conjunction with pressure controlled or flow controlled fans it is
possible to block DX cooling if the supply air fan control signal falls below a preset values. For
sequential control, the blocking level is individually settable for each DX cooling step.
When two DX cooling steps are used with binary function, the cooling effect is divided into three
steps. The desired blocking level can be set individually for each of these steps.
When three DX cooling steps are used with binary function, the cooling effect is divided into seven
steps. However, the controller still only has three blocking level settings. Therefore, Blocking step 1
will apply to binary steps 1 and 2, Blocking step 2 to binary steps 3 and 4, and Blocking step 3 to
binary steps 5, 6 and 7.
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Blocking of DX cooling on cooling pump alarm
Corrigo can be configured to block DX cooling on cooling pump alarm.
In- and outputs
Heating Cooling
Heating/Cooling
Change-over
DO
DO
DO
Step controller, step 1 (optional)
DO
DO
DO
Step controller, step 2 (optional)
DO
DO
DO
Step controller, step 3 (optional)
DO
Step controller, step 4 (optional)
Override of reduced speed for DX cooling
Override to normal quantity of air for DX cooling when the unit runs on reduced quantity of air. The
fans can be set to normal operation when cooling is required at high outdoor temperatures (e.g.
>14°C, the same temperature limit as for blocking of DX cooling).
5.1.5 Support control
Support control is normally used when room temperature control or extract air control has been
configured. When extract air control is configured a room sensor must be installed. “Support control
Heating” or “Support control Cooling” will run if Support control is configured, the running mode
is in Off-state (timer control OFF and not in extended running) and if conditions call for support
control (see below). Minimum run time is settable 0 to 720 minutes (FS= 20 minutes).
Support control can also be configured when supply air temperature control is used, if a room sensor
is installed. The controller uses the configured min. (FS=15°C) and max. (FS=30°C) limitation
values as support control setpoints. However, in this case the min. and max. limitation values cannot
be changed. To change the values, temporarily configure room control, change the min. and max.
values and then change back to supply air control.
Support control can also be configured to start only with the supply air fan. In this mode, the extract
air fan is not active. This requires a digital output to be configured, which controls the recirculation
damper to open completely so the supply air fan can circulate the air to and from the room. The
digital output is called ”recirculation damper”.
Support control heating
Demand for support control heating is when the room temperature is lower than the start value
which is settable 0 to 30°C. The fans will run at the preset speed, the heater and the heat exchanger
are controlled by the supply air temperature controller with the configured max limitation for the
supply air (FS=30°C) as setpoint and the cooling is shut off (0%). Support control heating stops
when the room temperature rises to the stop value and the minimum run time has been exceeded or
the running mode changes to ”On”.
Support control cooling
Demand for support control cooling is when the room temperature is higher than the start value
which is settable 20 to 50°C. The fans will run at the preset speed, the heater and the heat exchanger
are shut down (0 %) and the cooling is controlled by the supply air temperature controller with the
configured minimum limitation (FS=15°C) as setpoint. Support control cooling stops when the
temperature falls below the stop value and the minimum run time has been exceeded or the running
mode changes to ”On”.
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5.1.6 Free cooling
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.
Free cooling requires an outdoor sensor (or an inlet temperature sensor) and either a room sensor or
an extract air sensor. The outdoor sensor can be placed in the fresh air inlet duct.
Free cooling is only activated when all the start conditions are fulfilled.
Start conditions:

Less than four days have passed since the unit was last in running mode.

The outdoor temperature during the previous running period exceeded a set limit (22°C).

It is between 00:00 and 07:00:00 in the day (settable).

The timer outputs for "normal speed", "Extended running, Normal" and "External switch"
are Off.

A timer channel will be On sometime during the recently started 24 hours.
If the outdoor sensor is located in the fresh air inlet duct and/or an extract air sensor is selected and
ALL the start conditions are fulfilled, free cooling is activated and will run for 3 minutes to ensure
that the temperature measurement when using an extract air sensor reflects the corresponding room
temperature and that the outdoor temperature sensor senses the outdoor temperature even if it is
placed in the fresh air inlet duct. If the outdoor sensor is not located in the fresh air inlet duct and a
room sensor is selected, the unit will not start free cooling as long as all the temperatures are not
within the start and stop temperature intervals.
After three minutes, the stop conditions will be controlled.
Stop conditions:

Outdoor temp above the set max. value (18°C) or below the set min. value (condensation
risk, 10°C).

The room temp/extract air temp. is below the set stop value (18°C).

The timer outputs for "normal speed", "Extended running, Normal" or "External switch"
are On.

It is past 07:00:00 in the day.
If any stop condition is fulfilled after three minutes, the unit will stop again. Otherwise, operation
will continue until a stop condition is fulfilled.
When free cooling is active, the fans run at normal speed or the set value for pressure/flow control
and the digital output "Free cooling operation" is active. The outputs "Y1-Heating", "Y2-Heat
exchanger" and "Y3-Cooling" are shut down. After free cooling has been active, the heating output
is blocked for 60 minutes (configurable time).
In- and outputs
AI
Outdoor temperature sensor or Intake temperature
AI
Room sensor or Extract air sensor
DO
Free cooling operation
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5.1.7 Cooling recovery
If 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.
Output signals
100%
Controller signal
0%
Cooling
Exchanger
In- and outputs
AI
Outdoor temperature sensor
AI
Extract air sensor
5.1.8 Enthalpy control
Calculating the enthalpy means to calculate the energy content of the air, taking into consideration
both the temperature and the air humidity. The value is given in energy per kilogram air (kJ/kg). If
enthalpy control is configured, the enthalpy is calculated both indoors and outdoors. If the enthalpy
is higher outdoors than indoors, the recirculation damper will be overridden to increase the
recirculation. The function is not active when using free cooling, in this case outdoor air is used for
cooling the room instead. For the enthalpy calculation to be made, four sensors are required:
In- and outputs
AI
Outdoor temperature sensor
AI
Outdoor humidity sensor
AI
Room/Extract air temperature sensor
AI
Room humidity sensor
5.1.9 Heat exchanger efficiency monitoring
General
The function calculates the heat exchanger temperature efficiency in percent when the output signal
to the exchanger is higher than 5 % and the outdoor temperature is lower than 10°C.
When the control signal is lower than 5 % or the outdoor temperature is higher than 10°C the
display will show 0 %.
The heat exchanger efficiency is calculated using the following formula:
Efficiency = (Extractairtemp – Exhaustairtemp) /
(Extractairtemp – Outdoortemp) * 100
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Alarm
An alarm is activated if the efficiency falls below the set alarm level (50 %).
In- and outputs
AI
Outdoor temperature sensor
AI
Extract air sensor
AI
Exhaust air sensor
5.1.10 External setpoint
An external setpoint device, e.g. TBI-PT1000 or TG-R4/PT1000 can be connected. The setpoint
device must follow the PT1000 resistance curve. The unit is connected to the analogue input signal
”Extra temperature sensor 1”. The function must be activated in the menu ”Configuration/External
setpoint”. The setting range can be min/max limited via a setting in the controller. The factory
setting is min: +12, max: +30.
In- and outputs
AI
Extra temperature sensor 1
5.1.11 Recirculation
Recirculation is a function for distributing 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.
Recirculation is activated either via a digital input signal or by connecting it to "Timer output 5". If
timer output for normal/reduced speed is activated during recirculation via ”Timer output 5”,
normal/reduced speed gets priority. If timer output for normal/reduced speed is activated during
recirculation via a digital input, recirculation gets priority.
Recirculation control can be configured as either air circulation (temperature control inactive) or air
circulation with temperature control. (Only heating, only cooling or both heating and cooling).
Recirculation control has its own setpoint. However, the other settings are the same as for normal
operation, i. e. if normal operation has been configured as room control, room control will also be
used during recirculation.
The recirculation setpoint can be configured as constant or offset. Constant means that the
recirculation setpoint will be used. Offset is based on an offset from the supply air setpoint.
To lower the temperature, it is possible to configure free cooling to be used during recirculation, if
the conditions for free cooling are fulfilled. Then, the recirculation damper closes, the supply and
extract air dampers open and the extract air fan starts (the supply air fan also starts, if it is not
already running). If the free cooling function is not configured for recirculation control and you
want to cool down the supply air via a low recirculation setpoint, the cooling battery will be used. A
max. room temperature can be configured for recirculation control. If the room temperature rises
above the set value (FS 25°C), recirculation will be stopped. When the room temperature has fallen
1 K below the set max limit, recirculation will start again if the start conditions are still fulfilled.
When running frequency controlled fans and using recirculation control you can, depending on the
type of fan control, configure a special pressure/flow offset for the setpoint or a manual output
signal for the supply air fan.
5.1.12 Change-over
Change-over is a function for installations with 2-pipe systems. It makes it possible to use the same
pipe for both heating and cooling, depending on whether heating or cooling is required.
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A special analogue output signal, "Y1 Heating/Y3 Cooling", is used for Change-over control.
Switching between heating and cooling can be done in two ways. A digital Change-over input
signal is normally used. Open contact gives heating control and closed contact gives cooling
control. If the input has not been configured, change-over is handled by the internal controller
signal. The output signal will follow the two regular output signals "Y1 Heating" and "Y3 Cooling".
For heating control, the digital outputs ”Heating Activate” and ”Heat Step 1-4” are active. For
cooling control ”Cooling Activate” and ”Cool Step 1-3” are active.
If frost protection sensor has been configured, it will function in the usual way when heating is
active. However, when cooling is active, it will only be used for indicating temperature.
Three digital output signals, "Heat/Cool Step 1", "Heat/Cool Step 2" and "Heat/Cool Step 3", are
also connected with change-over. The signals can be used for reversing a step controlled heating
pump etc. See also section 5.1.4 Step controller Heating/ DX cooling.
5.1.13 Extra temperature sensor
The input signals ”Extra Sensor Temp 1”, ”Extra Sensor Temp 2”, ”...”, ”Extra Sensor Temp 5”, can
be used to add extra temperature sensors for supervision of temperatures that are not related to any
control functions. These sensors will only generate sensor error alarms.
5.1.14 Extra flow sensors supply air and extract air
The input signals ”Extra SAF Pressure” and ”Extra EAF Pressure” can be used to display the flow
in the supply air and extract air ducts. The K- and X-constants for each fan are used to calculate the
flow.
5.2 Extra control circuit
An independent temperature control circuit for control of for example after-heaters. The circuit can
be configured to heating or cooling. It has an analogue input signal for temperature sensors and an
analogue output signal 0…10 V. There is also a digital output signal which is activated when the
analogue output signal is above 1 V and deactivated when the analogue signal is below 0.1 V. The
circuit can be configured to be active all the time or to be active only when the main unit is running
at normal speed.
5.3 Humidity control
General
Humidity control can be configured as Humidification, Dehumidification or both Humidification
and Dehumidification.
Two humidity sensors can be connected, a room sensor for control and an optional duct sensor for
maximum limiting. The limit sensor can be omitted.
The humidity control is handled by a PI-controller.
The humidity sensors must give 0…10 V DC for 0…100 % RH.
Humidification
An analogue output is used to control a humidifier. The output will increase on decreasing humidity.
A digital output can also be used to start a humidifier.
Dehumidification
An analogue output is used to control a dehumidifier. The output will increase on increasing
humidity. A digital output can also be used to start a dehumidifier.
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Humidification/dehumidification
An analogue output is used to control a humidifier. The output will increase on decreasing humidity.
The cooling output Y3 will be activated for dehumidification through condensation. The output will
increase on increasing humidity. This signal overrides the cooling signal from the temperature
controller so the output can be activated for dehumidification even if the temperature controller
demand is zero.
For good temperature control when using cooling for dehumidification it is important that the cooler
is placed first in the air stream so that the exchanger and heater can be used to reheat the air after
dehumidification.
Digital humidity signal
A digital output signal, "Dehumidification/Humidification", can be used for on/off control of
humidifiers/dehumidifiers. The output signal has an activation value and a deactivation value which
are connected to the humidity controller output. The signal is activated when the humidity controller
output rises above the set activation value and is deactivated when the humidity controller output
drops below the set deactivation value.
Inputs and outputs
AI
Room humidity sensor
AI
Duct humidity sensor
AO
Humidity control output 0…10 V DC
DO
Dehumidification/Humidification
5.4 Fan control
General
Fans can be 1-speed, 2-speed or variable speed via a frequency converter.
1-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal".
2-speed fans are controlled using the digital outputs "Start SAF-Normal" and "Start EAF-Normal"
as well as "Start SAF-reduced" and "Start EAF-reduced" giving normal and reduced speed
respectively.
Variable speed control uses an analogue output per fan for controlling a frequency converter. There
are two setpoints for each fan, "Normal" and "Reduced". Pressure or air flow control can be used.
Variable speed fans can also be configured to be run with fixed output values.
Compensation curve
When running pressure control, it is also possible to temperature compensate the pressure.
Crosswise interlock
Crosswise interlock of fans can be configured, which e.g. means that if one fan stops, the other fan
will also stop.
Timer outputs, interlock at low outdoor temperatures
The fans are normally controlled by the timer channels for normal and reduced speed. At very low
outdoor temperatures, "2-speed fans" or "pressure controlled fans" can be forced to "reduced speed".
The limit temperature is settable and the function has a differential of 2K.
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Normal, reduced speed
Units with 2-speed or pressure control fans are always started at "reduced speed". After a settable
time, Corrigo switches to "Normal speed" if normal speed is valid at start-up. When 2-speed fans
are switched from "Reduced speed" to "Normal speed", "Reduced speed" is first disengaged. About
2 sec later, "Normal speed" is activated.
When Corrigo switches from "Normal speed" to "Reduced speed", there is a settable retardation
time from disengagement to activation. See the section Retardation time.
The extract air fan and the supply air fan have individual start and stop delays which are normally
set so that the extract air fan is started before the supply air fan. If there are not enough digital
outputs for individual control, both fans will have to be started using the signal for the supply air
fan, and the delay be created using an external time relay.
5.4.1 Pressure control
Frequency control pressure
When running pressure control, two analogue output signals are used for supply and extract air
respectively. The signals control the fan speeds via frequency converters, thereby maintaining
constant pressure. A digital activation signal is normally used for each fan ("Start SAF frequency
converter" and "Start EAF frequency converter"), for sending a start signal to the frequency
converters. The start signal is activated as long as the fan is expected to be running.
For the supply and extract air fans, there are two individually settable setpoint values, one
corresponding to normal speed and one corresponding to reduced speed. Changing between the two
setpoint values is done using the timer channels for normal and reduced speed or using digital input
signals ("Extended Operation, Normal" and "Extended Operation, Reduced").
Outdoor compensation
When running pressure control, it is also possible to outdoor compensate the pressure setpoint
value.
The outdoor compensation is linear and is set using two parameter pairs which give the value of the
compensation at two different outdoor temperatures. The compensation can be positive or negative.
The outdoor compensation is set in the menu Actual/Setpoint.
Using E tool, you can also choose to only outdoor compensate the pressure value of the supply air
fan. In that case, the extract air fan is controlled with constant flow, independent of the outdoor
temperature.
Extra compensation curve
As a complement to the above outdoor compensation, there is a function called ”Extra
compensation curve” which can be used to set a compensation based on the room, extract air or
supply air temperature. The curve has three parameter pairs which correspond to the value of the
compensation at three different temperatures.
Frequency control flow
Instead of giving a pressure setpoint value, it is possible to use an airflow volume value in m 3/h. The
value from the pressure transmitter is recalculated to a volume flow using the formula below and the
fans will be controlled to give a constant flow.
Flow = K * PX
Where K and X are settable constants dependent on the fan size and  P is the differential pressure,
measured in Pa, over the fan. Each fan has its own set of parameters.
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X
is normally 0.5 indicating that the flow is proportional to the square root of the differential
pressure.
Outdoor compensation
Also when running flow control, it is possible to outdoor compensate the setpoint value.
The outdoor compensation is linear and is set using two parameter pairs which give the value of the
compensation at two different outdoor temperatures. The compensation can be positive or negative.
The outdoor compensation is set in the menu "Actual/Setpoint".
Using E tool, you can also choose to only outdoor compensate the flow of the supply air fan. In that
case, the extract air fan is controlled using constant flow, independent of the outdoor temperature.
Extra compensation curve
As a complement to the above outdoor compensation, there is a function called ”Extra
compensation curve” which can be used to set a compensation based on the room, extract air or
supply air temperature. The curve has three parameter pairs which correspond to the value of the
compensation at three different temperatures.
Frequency control manual
Frequency controlled fans can be controlled at a fixed rotational speed. The rotational speed is
selected by setting a fixed output signal (0 – 100%). Values for normal and reduced speed can be
configured for each fan.
Fans that are run with a fixed output signal can also be compensated (see the section above). In this
mode, pressure sensors are not needed.
Frequency control external control signal
Two 0…10 V input signals are used for direct control of frequency controlled fans. The signal is
received from e.g. a VAV unit. The signal controls the fans 0…100% (0…10 V on the analogue
output). Pressure transmitters are not used in this control mode.
Frequency control SAF with EAF slave
The rotational speed of the supply air fan is controlled by a pressure transmitter which is placed in
the supply air duct. The extract air fan does not have a pressure transmitter, instead you let the
output for the extract air fan follow the control signal for the supply air fan. A scaling factor can be
added if the characteristics of the extract air fan are not the same as the characteristics of the supply
air fan. (Only pressure control of the supply air fan is possible using this function.) The extract air
fan will start directly at 50% after the start delay. Then the heating of the exchanger will work for
this operating mode as well. When the supply air fan starts, the extract air fan will be slave
controlled by the supply air flow.
Frequency control SAF with flow control EAF
The rotational speed of the supply air fan is controlled by a pressure transmitter which is placed in
the supply air duct. The extract air fan is controlled by the supply air flow, in order to achieve a
balanced ventilation. A pressure transmitter which is placed in the supply air fan cone ("Pressure
transmitter SAF 2") gives a measured value of the present supply air flow. A corresponding pressure
transmitter is placed in the extract air fan cone and gives a measured value of the extract air flow.
The supply air flow is the setpoint used for control of the extract air fan. A scaling factor can be
added if the extract air fan does not have the same characteristics as the supply air fan.
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Functional description
43
Minimum limit
For frequency controlled fans an adjustable minimum limit can be set individually on the supply air
and extract air fan control signals.
In- and outputs
12Presspeed speed sure/
Flow
DO
DO
Start SAF Normal
DO
DO
Start EAF Normal
DO
Start SAF reduced
DO
Start EAF reduced
DO
SAF frequency start
DO
EAF frequency start
DI
DI
Indication/alarm SAF
DI
DI
Indication/alarm EAF
AI
Pressure transmitter SAF
AI
Pressure transmitter EAF
AI
Pressure transmitter 2 SAF
AO
Frequency converter SAF
AO
Frequency converter EAF
5.4.2 Demand controlled ventilation
In applications with varying occupancy the fan speeds or mixing dampers can be controlled by the
air quality as measured by a CO2/VOC-sensor.
You can choose to activate the function "1. Always", "2. Only when the running mode is On", "3.
Only when the running mode is Off".
When the function is activated and combined with pressure controlled fans and the CO2/VOC-value
rises above control value one the fans will start at reduced speed, if they are not already running.
Should the CO2/VOC-value continue to rise the fan speed will also increase until the CO 2/VOCvalue reaches control value two at which point the fans will be running at normal speed. The fans
will stop when the CO2/VOC-value falls 160 ppm below control value one.
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Functional description
Manual Corrigo E Ventilation, revision O
When used with 2-speed fans they will start using reduced speed when the CO 2/VOC-value rises
above control value one and switch to normal speed when the CO 2/VOC-value reaches control
value two. The fans will stop when the CO2/VOC-value falls 160 ppm below control value one.
If demand controlled ventilation is activated in combination with mixing dampers, and the CO2value rises above the setpoint value, the dampers will let in more outdoor air. The function is
controlled by a PI-controller. See section 5.1.3 Heat exchanger types.
The function has a settable minimum running time.
In- and outputs
AI
CO2 sensors
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Functional description
45
5.5 Pump control
Digital inputs and outputs can be configured for pump control.
All the pumps can use run indication with malfunction alarm or an alarm input connected to a motor
protection or similar.
5.5.1 Heating circuit
The circulation pump for the heating circuit will always run when the outdoor temperature is lower
than a settable value (FS +10°C). At higher outdoor temperatures the pump will run when the
heating output is larger than 0V.
If no outdoor temperature sensor has been configured, the stop temperature can be set to 0°C. Then
the pump will only run on heat demand.
The pump has a settable stop delay.
The pump will be exercised once daily at 3 p.m. for one minute or the set shortest running time,
whichever is the longest.
5.5.2 Exchanger circuit, liquid connected exchangers
The circulation pump for the exchanger circuit will run when the output to the exchanger valve is
larger than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the
longest.
5.5.3 Cooling circuit
The circulation pump for the cooling circuit will run when the output to the cooling valve is larger
than 0V.
The pump has a settable, shortest running time.
The pump will be exercised once daily at 3 p.m. for 1 minute, or the set stop delay, whichever is the
longest.
Corrigo E can be configured to block DX cooling if a ”Malfunction P1-Cooling” alarm should
occur.
In- and outputs
Heating Exch Cooling
Outdoor temperature sensor
AI
46
Functional description
DO
DO
DO
Start/stop circulation pump
DI
DI
DI
Run ind/alarm, circ. pump
Manual Corrigo E Ventilation, revision O
5.6 Damper control
5.6.1 Close-off dampers
The outdoor air and exhaust air ducts close-off dampers can be controlled by digital outputs or be
hard-wired to the supply air fan relays for normal and reduced speed in such a fashion that the
damper is open when the supply air fan is running. When using pressure controlled fans the digital
activation signal is activated as soon as the fan has start conditions. This signal can be used to open
the close-off damper.
5.6.2 Fire dampers
Fire dampers are normally configured to open on fire alarm. However, via the display you can
configure them to be normally open instead.
In Corrigo controllers of generation 1, it was possible to choose whether the extract air fan should
be activated on fire alarm or if both fans should be stopped.
For generation 2 controllers, you can use E tool to configure the air handling unit’s running mode
on fire alarm. The following choices are possible: Stopped, continuous run, run via normal start/stop
conditions, only supply air fan in operation, only extract air fan in operation.
For compatibility reasons, the old function has not been removed in generation 2 controllers. This
means that old configuration files can be used in new Corrigo controllers as well. If the running
mode in the new application has been set to another value than "Stopped", this value will take
precedence over the value in the old application.
There is a digital input for detection of open and closed position of the fire dampers.
Fire damper exercising
Fire damper exercising can be configured. The exercise interval is settable. To be able to use this
function, all the dampers must have end-position switches.
The digital input: "Fire damper end-switch monitoring" should be wired to all the fire damper end
position switches.
90°
Damper...
Damper 3
Damper 2
Damper 1
i
E
When the test cycle is initiated, the output "Fire dampers" will be activated and the dampers will
begin to move. Within the set time (90 sec) the signal on "Fire damper end-switch monitoring" must
change to indicate that the dampers have left their normal positions. If not an alarm will be
triggered.
Then, within the set time, ”Fire damper, end-switch monitoring” must change again to indicate that
all the dampers have reached the other end position. If not an alarm will be triggered.
When all dampers have reached the end position the output "Fire dampers" will be reset to drive the
dampers back to normal position. Again, within the set time (90 sec) the signal on the input "Fire
damper end-switch monitoring"must change to indicate that the dampers have left the end positions.
If not an alarm will be triggered.
Then, within the set time, "Fire damper end-switch monitoring" must change again to indicate that
all the dampers are back to their normal positions. If not an alarm will be triggered.
The controller can be configured to stop the air handling unit during the damper testing.
All dampers must be wired to the same output in order to get correct results.
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Functional description
47
The fire alarm input can be configured as normally closed or normally open.
In- and outputs
DO
Outdoor air damper
DO
Exhaust air damper
DO
Fire damper
DI
Fire alarm
DI
Fire damper end switch monitoring
5.7 Extended running and External switch
The digital inputs for extended running can be used to force the unit to start although the timer says
the running mode should be “Off”. Normal running always takes precedence over reduced speed.
"Extended activ. Normal" takes precedence over the timer output for reduced speed.
For 2-speed fans and pressure/flow controlled fans there are inputs for normal speed and reduced
speed. 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.
The signal ”External switch” will stop the unit, even if the timer or one of the signals "Extended
activ. Normal" or "Extended activ. Reduced" says it should stay in running mode.
In- and outputs
DI
Extended activ. normal
DI
Extended activ. reduced
DI
External switch
5.8 Time-switch outputs
Up to five digital time-switch outputs can be configured. Each timer channel has a separate
scheduler with two periods per week-day.
Timer output five can be used to control the function Recirculation. See 5.1.11.
In- and outputs
DO
Extra time channel 1
DO
Extra time channel 2
DO
Extra time channel 3
DO
Extra time channel 4
DO
Extra time channel 5
5.9 Alarms
Alarm handling
Alarms are indicated by the red alarm LED on the front or on E-DSP.
All alarms can be monitored, acknowledged and blocked using the display and buttons.
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Functional description
Manual Corrigo E Ventilation, revision O
Alarm priorities
Alarms can be given different priority levels, A-alarm, B-alarm, C-alarm or not active. Digital
outputs can be bound to act as alarm outputs for A-alarms or B-alarms or both A- and B alarms. Calarms are internal alarms which are not forwarded. A- and B-alarms must be acknowledged to
reset. C-alarms automatically reset as soon as there is no longer a cause for alarm.
Stop function
For each alarm there is the possibility of choosing whether activated alarm should stop control or
not. Automatic restart will take place after removal of the alarm cause and the alarm has been
acknowledged.
For some alarm types such as electric heating high temperature limit and water heating frost
protection it would be dangerous to not stop the unit on alarm. Therefore, for such alarm types, the
program will always reset the stop function to "Active" even if the operator should choose
"Inactive".
Unfortunately it is not possible to remove the display text concerning the stop function for these
alarm types. This since the available program space demands that all alarms are treated in the same
way in the display.
Note: For alarms that have been set to "Inactive", the extra stop function should also be set to
"Inactive", or unexpected malfunctions may occur.
Alarm text
The alarm text that should be shown in the display when there is an alarm can be changed using E
tool. For more information, see the E tool manual.
In- and outputs
DO
Sum alarm A + B
DO
Sum alarm A
DO
Sum alarm B
Manual Corrigo E Ventilation, revision O
Functional description
49
Chapter 6 Starting and stopping the unit
6.1 Start conditions
The unit will be started and will run when any one of the following conditions is met:
1.
Timer output for normal speed or timer output for reduced speed is ON
2.
The unit is started manually using the Corrigo E front panel
3.
Digital input for extended running is activated
4.
Support control is activated and the present room temperature is higher/lower than the
preset starting value (Support heating/cooling)
5.
Demand controlled ventilation is activated and the value at the CO2 sensor is higher than
the preset start condition.
6.
Recirculation control has been configured and the conditions for recirculation control are
fulfilled.
Possibility to block automatic restart at power-up
The function ”Automatic restart at power-up” makes it possible to block automatic restart of the unit
at power-up. At power-up, the B-alarm ”Restart blocked after power on” is generated. Once this
alarm has been acknowledged, the unit will start.
6.2 Stop conditions
The unit will be stopped when any of the following conditions are met:
1.
Timer output for normal speed or timer output for reduced speed are OFF, and the signal
for extended running is OFF.
2.
Activated frost protection alarm. The unit will restart on resetting of the alarm.
3.
Activated fire detector if the function has been configured. The unit will restart on resetting
of the alarm.
4.
If the unit has electric heating and the supply fan flow switch alarm or the high temperature
limit alarm is activated.
5.
Activation of external switch.
6.
The unit is stopped manually using the Corrigo E front panel.
7.
Support control is activated and the present room temperature is higher/lower than the preset stop value (support heating/cooling)
8.
Demand controlled ventilation is activated and the value at the CO 2 sensor falls below the
pre-set start condition less the set differential.
9.
Recirculation control is active and the conditions for recirculation control are no longer
fulfilled.
10. At an activated alarm configured with the extra function of stopping the unit on activation.
The unit will restart on resetting of the alarm.
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Starting and stopping the unit
Manual Corrigo E Ventilation, revision O
6.3 Start sequence
Start of the unit will run according to the following sequence:
1.
If the controller is configured for water heating and has an outdoor temperature sensor and
the outdoor temperature is below +3ºC the heating valve is opened and the heating
circulation pump is started.
2.
If the controller is configured with a heat exchanger and has an outdoor temperature sensor
and the outdoor temperature is below +15ºC the heat exchanger will be run at 100%
capacity for a pre-set time.
3.
Signals for outdoor air and exhaust air dampers are activated.
4.
The supply air fan or the control of the supply air pressure will be started after a preset
time.
5.
The extract air fan or the control of the extract air pressure will be started after a preset
time.
6.
Thereafter temperature control according to the configured control mode is started. Electric
heating, if configured, is not started until a run signal from the supply air fan or flow
switch has been received. And not yet activated pumps will be started.
7.
After a pre-set delay, the alarm handling system is activated. The unit is in normal running
mode.
6.4 Stop sequence
Stopping of the unit will run according to the following sequence:
1.
Deactivation of the alarm handling system.
2.
Electric heating, if configured, is shut down.
3.
After individually set delay times the fans are stopped.
4.
Outdoor air and exhaust air dampers are shut down.
5.
Actuator signals are set to zero and the pumps are stopped.
6.
If shutdown mode is configured, it will be activated.
In order to maintain an acceptable supply air temperature as long as possible, the heat exchanger
will continue to run during the stop sequence until everything else is stopped.
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Starting and stopping the unit
51
Chapter 7 Display, LEDs and buttons
This section is applicable to Corrigo E units with display and buttons but also to the hand terminal
E-DSP which can be connected to Corrigo E units without display and buttons.
7.1 Display
The display has four rows of 20 characters and is backlit. The illumination is normally off, but is
activated as soon as a button is pressed. The illumination will be turned off again after a period of
inactivity.
7.2 LEDs
There are two LEDs on the front: The alarm LED marked with the  symbol. The “write enable”
LED marked with the  symbol.
The four LEDs placed next to the upper terminal strip will be described later.
7.3 Buttons
There are seven buttons: four arrow buttons which will be called UP, DOWN, RIGHT and LEFT.
The menus in the Corrigo E are organized in a horizontal tree structure. The UP/DOWN buttons are
used to move between menus at the present menu level. The RIGHT/LEFT buttons are used to
move between menu levels. When changing parameters the UP/DOWN buttons are used to
increase/decrease the value of the parameter and the RIGHT/LEFT buttons to move between digits
within the parameter.

The OK button is used to confirm the choice of a parameter setting. See more in the section
"Change parameters" below.

The C button is used to abort an initiated parameter change and restore the original value.

The ALARM button, marked with a red button top, is used to access the alarm list.
7.4 Navigating the menus
The choice of access level/user access determines which menus are shown in the menu system.
The start display, the display normally shown, is at the root of the menu tree.
Regulator vent. sys
2008-11-20 13:30
System: Running
Sp: 18.0 Act: 18.2°C
52
Display, LEDs and buttons
Manual Corrigo E Ventilation, revision O
Pressing DOWN will move you through the menu choices at this, the lowest level. UP will move
you back through the choices. Which menus are shown depends on which access level you are using
(see chapter eight for more information about logging on to higher levels).
Using Normal access, the access which normally does not require logging on, only a few basic
menus are shown:
Running mode
Temperature
Air control
Humidity control
Time settings
Access rights
In the menu "Running mode", you can view and set the unit’s running mode, view selected control
functions and view the alarm events.
In the menus "Temperature", "Air control" and "Humidity control", you can view actual values and
setpoint values. Setpoints can only be changed if you have Operator or Admin access.
In "Time settings", the time, date and set running times are shown. Values can only be changed if
you have Operator or Admin access.
Without logging on to Operator or System level, you are only authorised to change the unit’s
running mode and acknowledge alarms.
With Operator access, you can access more information and change other operation parameters like
setpoints and time functions.
With Admin access, you have full access to the complete menu system and can change all
parameters.
To enter a higher menu level, use UP or DOWN to place the display marker opposite the menu you
wish to access and press RIGHT. At each level there may be several new menus through which you
may move using the UP and DOWN buttons.
Sometimes there are further submenus linked to a menu or menu item. This is indicated by an arrow
symbol at the right-hand edge of the display. To choose one, use RIGHT again. To back down to a
lower menu level, use LEFT.
Change parameters
In some menus there are parameters that can be set. This is indicated by the yellow LED with 
flashing.
A quick blinking (2 times/s) indicates that the parameter can be changed using the present user
access.
A slower blinking (1 time/s) indicates that a higher user access is required to change the parameter.
To change a parameter, first press the OK button. If you need higher authority than you have to
change the parameter, a log on menu will be displayed, see chapter eight below. Otherwise, a cursor
will appear at the first settable value. If you wish to change the value, do so by pressing the UP and
DOWN buttons.
In numbers containing several digits you can move between the digits using the LEFT / RIGHTbuttons.
When the desired value is displayed press OK.
If there are further settable values displayed the cursor will automatically move to the next one.
To pass a value without changing it, press RIGHT.
To abort a change and return to the initial setting, press and hold the C-button until the cursor
disappears.
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Display, LEDs and buttons
53
Chapter 8 Access rights
There are four different access levels, Admin level which has the highest access, Service level,
Operator level and the basic “no-log on” level. The choice of access level determines which menus
are shown, as well as which parameters can be changed in the displayed menus.
Admin level gives full read/write access to all settings and parameters in all menus.
Service level gives access to all menus except the submenus "Configuration"/"In- and Outputs" and
"Configuration"/"System".
Operator level gives access to all menus except ”Configuration”.
The basic level only permits changes in "Running mode" and gives read-only access to a limited
number of menus.
Repeatedly press the DOWN button when the start-up display is shown until the arrow-marker to
the left of the text-list points to "Access rights". Press RIGHT.
Log on
Log off
Change password
8.1 Log on
Log on
Enter password:****
Present level:Normal
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.
8.2 Log off
Use this menu to log off from the present level to the basic "no-log on" level.
Log off?
No
Present level:Admin
Automatic logoff
If the access level is Operator, Service or Admin, the user will automatically be logged off to
Normal after a settable time of inactivity. See also the section "Automatic logoff". It is possible to
remove the automatic logoff, see 8.4 below.
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Access rights
Manual Corrigo E Ventilation, revision O
8.3 Change password
As default Corrigo comes with the following passwords for the different levels:
Admin
Service
Operator
Normal
1111
2222
3333
5555
You can only change the password for log on levels lower or equal to the presently active level, i.e.
if you are logged in as Admin you can change all passwords, but as Operator you can only change
the Operator and Normal passwords. There is no point in changing the Basic password since access
to that level is granted automatically to all users.
Change password for
level:Operator
New password: ****
Note: Do not set the password for Admin to the same value as the password for a lower level since
this will prevent access to the Admin level.
Forgotten your password? If the password for Admin has been changed and then lost, a temporary
password can be obtained from Regin. This code is date dependent and only valid for one day.
8.4 Change password to remove automatic logoff
If you want to remove the automatic logoff, change the password of the desired level to 0000. After
changing the password, the level will always be activated.
Note: This should be done with consideration, since no alarm is continuously given that a certain
level has been activated. However, it is very useful in certain cases, if the unit is intended to be used
by educated personnel or for instance at commissioning.
Manual Corrigo E Ventilation, revision O
Access rights
55
Chapter 9 Running mode
Collected here are a number of menus showing running mode, selected functions, alarm events and
status of inputs and outputs.
Running mode
Selected functions
Alarm events
Input/Output
9.1 Running mode, unit
The unit’s running mode can be changed without logging on.
Running mode
Auto
Running time
SAF:
14.6
Running time
EAF:
14.6
h
h
9.2 Selected functions
Shows the present configuration. These are read-only menus. No changes can be made here.
Control function
Supply air control
Fan control
1-speed.
Heating: Water
Exchanger: Plate exc
Cooling: Water
Free cool active: No
Support control
Active: Yes
CO2/VOC active
If time channel on
Fire damper function
Not active
Operation when alarm
Stopped
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Running mode
Manual Corrigo E Ventilation, revision O
Frost protection
Active
Cooling recovery
No
External setpoint
Not active
9.3 Alarm events
Alarm log which contains 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 section
18.1.
24 Nov 14:32
Malf. SAF
B
Acknowledged
9.4 Inputs/Outputs
This is a read-only menu block showing the present values for all configured inputs and outputs. If
correction factors have been applied to input values, the corrected values will be shown.
This is a read-only menu. No changes can be made here.
AI
DI
UI
AO
DO
Analogue inputs and digital outputs are shown here as examples.
Analogue inputs
AI1:
AI2:
AI3:
AI4:
18.5
20.3
28.2
19.9
Outdoortemp
Supplytemp
Extracttemp
Roomtemp1
Digital outputs
DO1:Off
DO2:Off
DO3: On
DO4:Off
Manual Corrigo E Ventilation, revision O
SAF 1/1-speed
EAF 1/1-speed
P1-Heating
Sum alarm
Running mode
57
Chapter 10 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.
The following menus are available providing that the corresponding input is activated:
Setpoint. Control mode 1: Supply air control.
Outdoortemp.:18.4°C
Supply air temp
Act.: 19.8°C Setp
Setp.: 20.0°C
Submenu: Setpoint
Supply air temp
Setp.: 20.0°C
Setpoint. Control mode 2, 5 and 6: Outdoor compensated supply air control.
Outdoortemp.:18.4°C
Supply air temp
Act.: 19.8°C Setp
Setp.: 20.0°C
Submenu: "Setpoint curve"
In control modes five and six, the setpoint relationship is used when supply air control is
active.
Use the eight breakpoints to generate a "setpoint"/"outdoor temperature" relationship.
Outdoor
-20.0°C
-15.0°C
-10.0°C
comp. setp.
= 25.0°C
= 24.0°C
= 23.0°C
Outdoor
-5.0°C
0.0°C
5.0°C
comp. setp.
= 23.0°C
= 22.0°C
= 20.0°C
Outdoor comp. setp.
10.0°C = 18.0°C
15.0°C = 18.0°C
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 + .6x 1.0°C = 25.6°C.
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Temperature
Manual Corrigo E Ventilation, revision O
Setpoint. Control mode 3 and 5: Cascaded room temperature control.
Room temp.1
Actual: 22.0°C
Setpoint: 21.5°C

In control mode five, 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 cascade control
max/min supply setp.
Max: 30.0°C
Min: 12.0°C
If two room sensors have been configured you will also get the following menu:
Room temp.2
Actual: 21.8°C
Setpoint. Control mode 4 and 6: Cascade connected extract air temperature control.
Extract air temp.
Actual: 21.0°C
Setpoint: 21.1°C
In control mode six, the setpoint is used when cascade connected extract air control is active.
Submenu for setting the min and max limitation temperatures for the supply air.
If cascade control
max/min supply setp.
Max: 30.0°C
Min: 12.0°C
Support control heating
Support heating
Room temp for
Start: 15.0°C
Stop: 21.0°C
Support control cooling
Support cooling
Room temp for
Start: 30.0°C
Stop: 28.0°C
Frost protection temperature
Frost protection
Actual: 30.9°C
De-icing exchanger
De-icing exchanger
Actual: 11.2°C
Setpoint: -3.0°C
Hysteresis: 1.0°C
Manual Corrigo E Ventilation, revision O
Temperature
59
Heat exchanger efficiency monitoring
Efficiency exch.
Actual: 93%
Output exchanger
Actual: 100%
Recirculation See 5.1.11
Temp.setpoint when
recirc. (Supply/
Extract/Room)
18.0°C
Offset SAF when
frequency control
and recirculation:
0.0 Pa
"Offset SAF" makes it possible to add 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 percent.
Extra control circuit See 5.2
Extra control circuit
Actual: 21.2°C
Setpoint: 20.0°C
Enthalpy control
Enthalpy indoor:
33.8 KJ/Kg
Enthalpy outdoor:
35.0 KJ/Kg
Submenus
Outdoortemp
Act.: 12.8 °C
Humidity Outdoor
Act.: 98.7% RH
Indoortemp
Act.: 17.2 °C
Humidity indoor
Act.: 55.7 % RH
Status enthalpy control
Override cool Recovery
due to Enthalpy:
Active
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Temperature
Manual Corrigo E Ventilation, revision O
Chapter 11 Air control
Pressure control SAF and EAF
When using pressure or flow controlled fans, the setpoint can be temperature compensated.
The compensation has the default value 0 Pa, i.e. no compensation is added. The compensation is
linear between the setting points. The compensation can be positive or negative.
The same compensation normally applies to both fans. Using E tool, you can choose to compensate
only the supply air fan.
The same compensation is applied to both "Normal" and "Reduced", which means that you need to
take caution when using this function so the pressure does not become too low or even negative
when running reduced speed.
Depending on the choice of fan control, different combinations of the menus below will be shown.
Pressure control SAF. (There are corresponding menus for EAF)
Pressure contr. SAF
Actual: 480 Pa
Setp.: 490 Pa

Submenu "Setpoint"
Pressure contr. SAF
Setp 1/1: 490 Pa
Setp 1/2: 300 Pa
Submenu "Outdoor compensation"
Outd. comp. setp.
-20 °C = -50 Pa
10 °C =
0 Pa
Act. Comp: -5 Pa
Submenu "Extra compensation curve"
Comp.sens.:Roomtemp1
15
°C = 0
Pa
20
°C = 0
Pa
25
°C = 0
Pa
Flow control SAF. (There are corresponding menus for EAF)
Flow control SAF
Actual: 1800 m3/h
Setp.: 2000 m3/h

Submenu "Setpoint"
Flow control SAF
Setp 1/1: 2000 m3/h
Setp 1/2: 1000 m3/h
Submenu "Outdoor compensation"
Outdoor comp. setp.
-20 °C = 0.0 m3/h
10 °C = 0.0 m3/h
Act. Comp: 0.0 m3/h
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Air control
61
Submenu "Extra compensation curve"
Comp.sens.:Roomtemp1
15
°C = 0
m3/h
20
°C = 0
m3/h
25
°C = 0
m3/h
Manual frequency control SAF. (There are corresponding menus for EAF)
Frequency control
manual SAF
Output: 75%

Submenu "Setpoint"
Frequency control
manual SAF
Output 1/1: 75%
Output 1/2: 50%
Submenu "Outdoor compensation"
Outdoor comp. outp.
-20 °C = 0 %
10 °C = 0 %
Act. Comp: 0 %
Submenu "Extra compensation curve"
Comp.sens.:Roomtemp1
15
°C = 0
%
20
°C = 0
%
25
°C = 0
%
CO2 / VCO
CO2
Actual:920ppm
Setp:850pm
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Air control
Manual Corrigo E Ventilation, revision O
Chapter 12 Humidity control
Humidity control can be configured as Humidification, Dehumidification or both Humidification
and Dehumidification.
Two humidity sensors can be connected, a room sensor for control and an optional duct sensor for
maximum limiting. The limit sensor can be omitted.
The humidity control is handled by a PI-controller.
The humidity sensors must give 0…10 V DC for 0…100 % RH.
Humidity sensor room
Humidity room
Actual: 51.9% RH
Setp: 50.0% RH
Humidity sensor duct
Humidity duct
Actual: 72.2% RH
Max limit: 80.0% RH
Hyst.: 20.0% RH
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Humidity control
63
Chapter 13 Time settings
General
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 weekschedules with two activation periods per day. These outputs can be used to control lighting,
doorlocks etc.
Time/Date
Timer Normal speed
Timer Reduced speed
Extended running
Timer output 1

Timer output 2

Timer output 3

Timer output 4

Timer output 5

Holidays

13.1 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.
Time: 18:21
Date: 04-08-04
Weekday: Wednesday
13.2 Timer Normal speed
There are eight 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 1/1-speed that day.
Normal speed
Monday
Per 1: 07:00 – 16:00
Per.2: 00:00 - 00:00
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Time settings
Manual Corrigo E Ventilation, revision O
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 both days must be entered.
Normal speed
Monday
Per 1: 07:00 – 16:00
Per.2: 22:00 - 24:00
Normal speed
Tuesday
Per 1: 00:00 – 09:00
Per.2: 00:00 - 00:00
13.3 Timer Reduced 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.
There are eight 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 00:00 – 24:00.
To disable a period, set it to 00:00 – 00:00. If both periods of a day are set to 00:00 – 00:00, the unit
will not run at "Reduced speed" that day.
Reduced speed
Sunday
Per 1: 10:00 – 16:00
Per.2: 00:00 - 00:00
13.4 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 zero the unit will only run as long as
the digital input is closed.
Extended running
60 min
Time in ext. Running
0 min
13.5 Timer outputs 1…5
Up to 5 digital outputs can be used as timer controlled outputs. Each with individual weekschedules with two activation periods per day. Each output has eight separate setting menus, one for
each weekday and one extra for holidays. Holiday schedules take precedence over other schedules.
Only the time channels which have been configured, i.e. have been wired to a digital output, will be
shown.
Timer output 2
Wednesday
Per.1: 05:30 – 08:00
Per.2: 17:00 – 23:00
If the function "Recirculation" has been configured (see 5.1.11), "Timer output 5" can be used to
control start/stop of the recirculation function.
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Time settings
65
13.6 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 1…365. The dates are in the format:
MM:DD.
When the present date falls within a holiday period, the scheduler will use the settings for the
weekday “Holiday”.
Holidays (mm:dd)
1: 01-01 – 02-01
2: 09-04 – 12-04
3: 01-05 – 01-05
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Time settings
Manual Corrigo E Ventilation, revision O
Chapter 14 Manual / Auto
General
In this menu the running mode of all the configured output signals and a number of control
functions can be manually controlled. This is a very handy feature which simplifies the checking of
individual functions in the Corrigo.
The running mode for the whole unit is set in the menu "Running mode". See section 9.1.
The supply air controller's output signal can be manually set (Manual/Auto) to any value between 0
and 100 %. The temperature output signals will change accordingly if they are in "Auto" mode. It is
also possible to manually control each of the temperature output signals individually.
All the configured digital outputs can be set to "Auto", "Off" or "On".
Since leaving any of the outputs in manual control will disrupt the normal control, an alarm will be
generated as soon as any output is set to a manual mode.
Since the menus vary according to the configuration of the outputs only the most common ones will
be shown here. For the digital signals you can normally choose between "Auto" and "On" and "Off"
or similar words indicating the two possible manual states of the digital output.
Manual/Auto
Supply air controller running mode
Can be set to "Auto", "On" or "Off". In manual "On" mode the output signal can be set 0…100 %.
The outputs "Y1", "Y2" and "Y3", if in "Auto" mode, will follow the signal according to the set
split values.
Supply temp contr.
Auto
Manual set: 42.0
Start signal "SAF" and "EAF"
Can be set to manual 1/1-speed, manual 1/2-speed and off. Manual 1/2-speed is not valid for single
speed fans.
SAF
Auto
EAF
Auto
With pressure controlled fans you get the following menu: Can be set to "Auto", "Manual normal",
"Manual reduced", "Manual" and "Off". In "Manual" mode the output signal can be set 0…10 V.
Pressure SAF: Auto
Manual set: 0.0
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Manual / Auto
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EAF: Auto
Manual set: 0.0
Y1 heating output
Heating
Auto
Manual set: 0.0
Y2 heat exchanger
Exchanger
Auto
Manual set: 0.0
Y3 cooling
Cooling
Auto
Manual set: 0.0
Humidification/dehumidification
Humidification/Dehumidi
fication
Auto
Manual set: 0%
Circulation pumps: Heating, Exchanger and Cooling
P1-Heating
Auto
P1-Exchanger
Auto
Dampers: Outdoor air, Recirculation air, Exhaust air and Fire dampers
Outdoor air damper
Auto
Extra control circuit
Extra ctrl. unit
Auto
Manual set: 0.0
Extra sequence
Extra sequence Y4
Auto
Manual set: 0.0
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Manual / Auto
Manual Corrigo E Ventilation, revision O
Chapter 15 Settings
In this menu group all settings for all activated functions should be available. The menu group is
only available when logging on as Admin. Depending on what choices have been made during
configuration, some of the alternatives in this menu group may not be shown.
Settings
Control temp
Control pressure
Control flow
Control humidity
Control CO2
Control extra unit
Alarm settings
15.1 Control temp
Supply air controller
Supply air control
P-band: 33.0 °C
I-time: 100.0 sec
The set P-band for the supply air controller is for the whole controller signal. This means that the Pband for each sequence is proportionate to the split percentage values given to sequences.
For example:
P-band for the supply air controller is set to 25 K. The split is set so that cooling gets 0…20 % = 20
%, the exchanger gets 30…50 % = 20 % and the heater gets 50…100 % = 50 %.
The individual P-bands will then be:
Chiller: 20 % of 25°C = 5°C
Exchanger: 20 % of 25°C = 5°C
Heating: 50 % of 25°C = 12.5°C
The remaining 2.5°C are the neutral zone between cooling and exchanger.
The split values are set in the configuration submenu Other parameters. See section 16.24.6.
If cascade control
max/min supply setp.
Max: 30°C
Min: 12°C
Room controller
Room control
P-band: 100.0 °C
I-time: 300.0 sec
Extract air controller
Extract air control
P-band: 100.0 °C
I-time: 300.0 sec
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Settings
69
Shutdown mode
Shutdown mode
P-band: 100.0 °C
I-time: 100 sec
Frost protection temperature
Frost protection
temperature 
Frost protection
Active
Setp shutdown: 25°C
P-band active: 5°C
Fast stop at
frost-protection alarm
Yes
"Setp shutdown" is the shutdown mode setpoint.
P-band active 5°C means that the frost protection controller will start overriding the heating output
when the frost protection temperature is less than five degrees above the set frost alarm limit. The
default alarm limit is 7°C. It can be changed in the menu Settings/Alarm settings/Alarm
limits/Alarm limit frost protection.
Exchanger de-icing
De-iceing
P-band: 100 °C
I-time: 100 sec
15.2 Control pressure
Pressure control SAF
Pressure control SAF
P-band: 500 Pa
I-time: 60 sec
Min Output: 0
%
Pressure control EAF
Pressure control EAF
P-band: 500 Pa
I-time: 60 sec
Min Output: 0
%
15.3 Control flow
Flow control SAF
Flow control SAF
P-band: 1000 m3/h
I-time: 60 sec
Min Output: 0
%
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Settings
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Flow control EAF
Flow control EAF
P-band: 1000 m3/h
I-time: 60 sec
Min Output: 0
%
15.4 Humidity control
Control humidity
P-band: 100.0 %RH
I-time: 300.0 sec
15.5 Control Extra unit
Control extra
unit
P-band: 33.0 °C
I-time: 100.0 sec
15.6 Alarm settings
Alarm settings
Alarm limits
Alarm delays
Restore alarm



15.6.1 Alarm limits
Alarm limits, supply air
Al. lim. supply air
Control dev: 10.0 °C
High temp:
30.0 °C
Low temp:
10.0
Alarm limits, extract air
Al. lim. extract air
High temp:
30.0 °C
Low temp:
10.0 °C
Alarm limits, room
Al. lim. room air
High temp:
30.0 °C
Low temp:
10.0 °C
Alarm limit frost protection
Alarm limit frost
protection
7.0 °C
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Settings
71
Alarm limit, pressure
Control dev SAF
40.0 Pa
Control dev EAF
40.0 Pa
Alarm limit Humidity
Control deviation
humidity
10 %
Alarm limit, exchanger efficiency
Low efficiency
50.0 %
Service alarm filter
Service alarm
(Filter alarm)
Time until alarm
Activates: 0 month
15.6.2 Alarm delays
Alarm delay, supply air
Al. del. supply air
Control dev: 30 min
High temp:
5 sec
Low temp:
5 sec
Alarm delay, extract air
Al. del. extract air
High temp:
30.0 min
Low temp:
30.0 min
Alarm delay, room
Al. del. room air
High temp:
30.0 min
Low temp:
30.0 min
Alarm delay, frost protection
Alarm delay
Frost prot.: 0 sec
Frost risk: 0 sec
Alarm delay control SAF and EAF
Alarm delay control
dev. pressure
SAF: 30
min
EAF: 30
min
Alarm delay, Humidity
Alarm delay control
deviation humidity 30
Min
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Settings
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Alarm delay, exchanger efficiency
Low efficiency
30 min
Alarm delay, fan malfunction
Alarm delay malfunc.
SAF: 120 sec
EAF: 120 sec
Alarm delay, pump malfunction
Alarm delay malfunc.
P1-Heating:
5 sec
P1-Cooling:
5 sec
P1-Exchan.:
20 sec
Alarm delay, misc.
Alarm delay
Filter mon.:
Flow switch:
Frost prot.:
180 sec
5 sec
0 sec
Ext. Frost prot. DI refers to the digital input signal Deicing Heat exchanger.
Alarm delay, misc. 2
Alarm delay
Deicing DI: 0 sec
Fire alarm: 0 sec
Ext. alarm: 0 sec
Frost protection DI refers to the digital input signal De-icing thermostat exchanger.
Alarm delay, misc. 3
Alarm delay
Elec. heat: 0 sec
Sensor error: 5 sec
Rot.sent.exch: 20 sec
15.6.3 Restore alarm
Service alarm
(filter alarm)
Time counter set to
zero: No
15.7 Save and restore settings
Restore factory
settings: No
Restore user settings:
No
In this menu, it is possible to restore all parameters to their factory settings or to the user settings
they were saved as earlier, see below.
Save user settings: No
The present configuration can be saved in a separate memory area and can later be restored using
the previous menu, "Restore user settings".
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Settings
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Chapter 16 Configuration
Start by logging on as Admin. See chapter 8.
Move the marker using the DOWN and UP buttons until it is opposite the menu ”Configuration”
and press RIGHT.
The configuration main menu is shown (different menus are visible depending on the configured
inputs and outputs).
Inputs/Outputs
Control function
Fan control
Extra control unit
Extra sequence Y4
Heating
Exchanger
Cooling
Pump control
Free cooling
Support control
CO2/VOC control
Fire function
Humidity control
Exchanger de-icing
Cooling recovery
Enthalpy control
Min lim. dampers
External setpoint
Run ind/Motor prot.
Actuator type
Actuator run time
Step controllers
Recirculation
Pretreatment
Alarm settings
Communication
Other parameters
System
16.1 Inputs and outputs
AI
DI
UI
AO
DO
General
Free configuration
Any control signal can be bound to any in- and output, the only restriction being that digital signals
cannot be bound to analogue inputs and vice versa. It is up to the user doing the binding to make
sure that activated functions are bound to appropriate in- and outputs.
Delivery setting
On delivery all the physical in- and outputs have already been bound to a signal.
The delivery settings are suggestions only and can easily be changed.
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Configuration
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16.1.1 Analogue inputs AI
AI1
Sign: Outdoor temp
Raw value: 18.4
Compensation:0.0
All analogue inputs are for PT1000 or 0…10 V.
Input signals can be compensated e.g. for wiring resistance.
The raw value will show the actual, uncompensated input value.
If inputs have been assigned to pressure or flow control of fans, alternatively humidity or CO2
control, the following menus will appear:
SAF Pressure at
0V: 0.0 Pa
10V:500.0 Pa
Filter factor: 0.2
CO2 at
0V: 0.0 ppm
10V: 2000 ppm
Filter factor: 0.2
Set the parameter values that should correspond to the input signal levels 0 V and 10 V.
The filter factor is the damping you want the program to work with in order to reduce the influence
of potential signal fluctuations on the sensor input. The filter factor can be changed via the display
or E tool and is found after ”analogue inputs” in ”configuration”. A new value is calculated using
the following formula:
New value = old value * filter factor + raw value * (1 - filter factor)
16.1.2 Digital inputs DI
DI1
NO/NC: NO Signal:
Filter alarm 1
Status: No
To simplify adaptation to external functions, all digital inputs can be configured to be either
normally open, NO, or normally closed, NC.
The inputs are as standard normally open, i. e. if the input is closed, the function connected to the
input in Corrigo is activated.
Be careful when changing the input from NO to NC since some digital functions can be configured
to either NO or NC themselves. For example, you can choose if the Fire alarm input should be
activated when it is closed or opened. Therefore, there is a risk that the signal is changed twice and
the result is the opposite of the desired.
16.1.3 Universal inputs UI
On the largest hardware version, E28 there are universal inputs. These can individually be
configured as either analogue inputs or as digital inputs. When configured as analogue inputs they
can be bound to any of the analogue signals described under Analogue signals.
When configured as digital inputs they can be bound to any of the digital signals described under
"Digital signals".
UI1

Choose AI or DI sign
AI sign: SAF pressure
DI sign: Not used
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Configuration
75
After choosing AI or DI signal (the unused alternative must be set to not active) there are submenus
with settings. These menus are accessed by pressing RIGHT.
UAI1
Sign: SAF pressure
Raw Value:8.5
Compensation: 0.0
UDI1
NO/NC: NO Signal
Not used
Status: No
To simplify adaptation to external functions, all universal inputs configured as digital inputs can be
set to be either normally open, NO, or normally closed, NC.
The inputs are as standard normally open, i. e. if the input is closed, the function connected to the
input in Corrigo is activated.
Be careful when changing the input from NO to NC since some digital functions can be configured
to either NO or NC themselves. For example, you can choose if the Fire alarm input should be
activated when it is closed or opened. Therefore, there is a risk that the signal is changed twice and
the result is the opposite of the desired.
16.1.4 Analogue outputs
Analogue outputs are 0…10 V DC.
AO1
Sign: Y1-Heating
Auto
Value: 0.0 V
Analogue outputs can be set in run mode "Auto", "Manual" or "Off".
16.1.5 Digital outputs
DO1
Signal: SAF 1/1-speed
Auto
Status: On
Digital outputs can be set in run mode "Auto", "Manual-On" or "Manual-Off".
16.2 Control function
Control function
Mode:
Supply air control
There are six different control functions to choose from:
76
Configuration
1.
Supply air control.
2.
Outdoor-temperature compensated supply air control.
3.
Cascaded room temperature control
4.
Cascade connected extract air temperature control.
5.
Outdoor temperature dependent switching between outdoor compensated supply air
temperature control and room temperature control
6.
Outdoor-temperature controlled switching between Outdoor-temperature compensated
supply air control and Cascade connected extract air temperature control.
Manual Corrigo E Ventilation, revision O
For detailed description of the control modes, see section 5.1.1 Control modes.
In control modes five and six, there is a submenu for setting of the change-over outdoor
temperature.
Outdoor temp for
control mode change
13°C
16.3 Fan control
Fan control
1-speed
Choose between "Single-speed", "Two-speed", "Pressure control", "Flow control", "Frequency
manual" (fixed output), "Frequency external control", "SAF with EAF slave", or "SAF with EAF
flow control".
For detailed description of fan control alternatives, see section 5.4 Fan control.
Flow control
If flow control has been configured, there is a submenu for setting of calculation parameters for
conversion of pressure to flow. There are two menus, one for "SAF" and one for "EAF".
SAF flow control
factors
K-constant: 100
X-constant: 0.50
For more detailed description, see the section Air flow control under 5.4.1 Pressure control.
SAF with EAF slave
If "SAF with EAF slave" has been configured, there is a submenu for setting the CAV factor, a
factor which determines the extract air fan output in relation to the supply air fan output.
EAF CAV factor:
1.00
For more detailed description, see the section SAF with EAF slave under 5.4.1 Pressure control.
SAF with EAF flow control
If "SAF with EAF flow control" has been configured, there are submenus for setting the flow
calculation factors for "SAF" and "EAF", and the CAV factor for "EAF".
SAF flow control
factors
K-constant: 100
X-constant: 0.50
EAF flow control
factors
K-constant: 100
X-constant: 0.50
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Configuration
77
EAF CAV factor:
1.00
For more detailed description, see the section SAF with EAF flow control under 5.4.1 Pressure
control.
Crosswise interlock between fans
Crosswise interlock means that if one of the fans stops running, the other fan will automatically stop
as well.
Crosswise interlock
between SAF and EAF
No
16.4 Extra control circuit
The extra control circuit can be configured to be either constantly active or to be active only when
the regular control circuit is active.
Mode extra unit
Running if
unit runs
The extra control circuit can be configured to be either a heating or a cooling circuit.
Control mode extra
unit:
Heating
16.5 Extra sequence Y4
"Extra sequence Y4" can be configured to one of the following alternatives: "Active", "Active with
cooling recovery", "Active with enthalpy control" and "Active with both cooling recovery and
enthalpy control".
Mode Extra Sequence Y4
Not active
16.6 Heating coil
Heating
water
The heater can be set to "Water", "Electric", "Water/Electric" or "Not used".
For detailed description of heater alternatives, see section 5.1.2 Heater types.
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Configuration
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16.7 Exchanger
Exchanger
Rot. Exch
The heat exchanger unit can be set to one of the following alternatives:

Plate exchanger

Rotating exchanger

Liquid connected exchanger

Mixing dampers

Not connected

Damper limiting for minimum outdoor air percentage is settable 0…100%.
In the submenu parameters for outdoor temperature control of exchanger can be set.
Outd.
exch:
Outd.
Diff.
temp control of
Off
temp start: 10°C
stop: 0.2°C
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
16.8 Chiller
Cooling
Water
Select chiller type: "Water", "DX", "DX with exchanger control" or "Not used".
For detailed description of DX-cooling, se section 5.1.4 Step controllers.
If DX cooling has been configured, there are submenus for setting of certain operation parameters.
Min limit lowering
If DX cooling is used in combination with room or extract air control, the supply air temperature
minimum limit value can be lowered to give smoother (more continuous) running of the chillers.
The set lowering of the limit value is activated when the DX cooling is running.
Lowering of min
limit for supply air
control on active
DX cooling: 5.0°C
This parameter is also used for setting the lowering of the cooling setpoint when running "DX
cooling with exchanger control".
See 5.1.4.
Blocking the DX cooling at low outdoor temp
Outdoor temperature dependent blocking of DX cooling is individually settable for each cooling
step. If the outdoor temperature is below the set value, it is not possible to activate the cooling step.
The function has a 1K hysteresis, i.e. if a cooling step is blocked, it can only be activated again
when the outdoor temperature has risen to 1K above the set value.
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Configuration
79
Block DX-cooling,
step1, at outdoor temp.
lower than 13.0 °C
Blocking of DX cooling on cooling pump alarm
DX cooling can be blocked on activation of the cooling pump alarm.
Block DX-cooling on
alarm
”Run error P1cooler”:No
Override of reduced speed for DX cooling
Override to normal quantity of air for DX cooling when the unit runs on reduced quantity of air. The
fans can be set to normal operation when cooling is required at high outdoor temperatures (e.g.
>14°C, the same temperature limit as for blocking of DX cooling).
Force normal
speed if active
DX-cooling:Yes
16.9 Pump control
P1-Heating
P1-Exchanger
P1-Cooling



In these menus the parameters for pump control are set.
If, for any of the control circuits, no output is configured for pump control these settings will be
ignored.
P1 Heating
Pump stop: Yes
Stop delay: 5 min
Outd. Temp stop: 10°C
Differential: 1.0°C
P1 Exchanger
P1-Exchanger
Stop delay: 5 min
P1 Cooling
P1-Cooling
Stop delay: 5 min
For a detailed description of pump functions, see the section Pump control.
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16.10 Free cooling
Free cool active:Yes
Outd. temp activation
22.0°C
Outd. Temp night
High: 18.0°C
Low: 10.0°C
Room temp min 18.0°C
Hour for start/stop
Free cooling
Start: 0
Stop: 7
Time to block heat
output after
free cooling
60
min
Fan output
when free cooling
SAF: 0
%
EAF: 0
%
Outdoor sensor
placed in intake
channel
No
For detailed description, see section 5.1.6 Free cooling.
16.11 Support control
Note: If you select the function support control without EAF (extract air fan), a recirculation damper
must be used. See more in section 5.1.5.
Support control
Active: Yes
EAF running during
support contr: Yes
Minimum running time
Min. run time for
support ctrl: 20 min
For detailed description, see 5.1.5 Support control.
16.12 CO2/VOC Demand control
CO2/VOC active
Never
Type: Mixing dampers
Min. time: 20 min
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Configuration
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Activation level
1/2-speed: 800 ppm
1/1-speed: 1000 ppm
diff: 160 ppm
For detailed description, see the section Demand control.
16.13 Fire function
Fire dampers are normally configured to open on fire alarm. However, via the display you can
configure them to be normally open instead.
In Corrigo controllers of generation 1, it was possible to choose whether the extract air fan should
be activated on fire alarm or if both fans should be stopped.
For generation 2 controllers, you can use E tool to configure the air handling unit’s running mode
on fire alarm. The following choices are possible: "stopped", "continuous run", "run via normal
start/stop conditions", "only supply air fan in operation", "only extract air fan in operation".
For compatibility reasons, the old function has not been removed in generation 2 controllers. This
means that old configuration files can be used in new Corrigo controllers as well. If the running
mode in the new application has been set to another value than "stopped", this value will take
precedence over the value in the old application.
There is a digital input for detection of open and closed position of the fire dampers.
All dampers must be wired to the same output in order to get correct results.
Fire damper function
Not active
Operation when alarm
Stopped
Select if fire alarm should be normally closed or normally open and activation of fire damper
exercising if the unit should be stopped or not: ”No”, ”Yes unit running” ,”Yes unit stopped” ,
Fire alarm input
Normally open
Damper exercise
No
Set the parameters for damper exercise in the submenu.
Damper exercise
Running time: 90 sec
Interval in days: 1
Hour for exerc.: 00
Running time is the time the damper actuator needs to open or close.
Hour for exercise is the hour of the day at which you want the function to be run.
For detailed description of damper exercising, see the section Damper control.
16.14 Humidity control
Humidity control can be configured as either humidification or dehumidification or as combined
humidification/dehumidification.
These
settings
are
for
the
digital
output
"Humidification/Dehumidification".
Humidity control
Humid-/Dehumidificat
Start limit: 15%
Stop limit: 5%
For a detailed description, see the section Humidity control.
82
Configuration
Manual Corrigo E Ventilation, revision O
16.15 Exchanger de-icing
Exchanger de-icing
Yes
De-icing parameters
Setp.De-icing:-3.0°C
Hysteresis: 1.0 °C
Stoptemp SAF:-10.0°C
Min. run time: 5 min
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
16.16 Cooling recovery
Cooling recovery
Off
Cooling limit: 0.0°C
Cooling limit is the difference in temperature between extract air and outdoor air.
For details, see section 5.1.7 Cooling recovery.
16.17 Minimum limit dampers
Min limit dampers
Not active
Min limit.: 5%
For detailed description of exchanger alternatives, see section 5.1.3 Heat exchanger.
16.18 Enthalpy control
Cooling recovery
run when enthalpy is
greater outdoor than
indoor : Active
For a detailed description, see section 5.1.8 Enthalpy control.
16.19 External setpoint
An external setpoint device, for example TBI-PT1000 or TG-R4/PT1000 can be connected. The
setpoint device must follow the PT1000 resistance curve. The setting range can be restricted.
External setpoint
Not active
Min setp.: 12.0°C
Max setp.: 30.0°C
For details, see section 5.1.10 External setpoint.
16.20 Run indication / Motor protection
Digital input signals are used to supervise fans and pumps. They can be configured either for
indication of the motor running or for monitoring of motor protection contacts.
An input configured for run indication should normally be closed during operation.
Manual Corrigo E Ventilation, revision O
Configuration
83
Open input when the motor is running, i.e. motor control output is activated, will generate an alarm.
For supply air fans and extract air fans, there is also a conflict alarm, i. e. an alarm if the run
indication input is closed even though the motor control output is not activated. See alarm 33
Supply Air Fan external operation and alarm 34 Extract Air Fan external operation in the section
Alarm configuration.
An input configured as motor protection should be normally open, i. e. closed contact when the
motor is running, i.e. motor control output is activated, will generate an alarm.
Run ind./Motor prot
SAF: Motor protection
EAF: Motor protection
Run ind./Motor prot
P1 Heat: Motor
protection
P1 Exch: Motor
protection
P1 Cool: Motor
protection
When running frequency controlled fans, the pressure signal from each respective fan’s pressure
transmitter is normally used as run indication signal. If the pressure falls below the set value during
normal operation, a malfunction alarm is activated.
Min pressure for
run indication
SAF: 25.0 Pa
EAF: 25.0 Pa
Alarm from frequency converter
When running frequency controlled fans, you sometimes want to use both a pressure signal from a
pressure transmitter and a digital alarm signal from a frequency converter. An analogue input for a
pressure transmitter and a digital input for "SAF Indication" or "EAF Indication" must then be
configured. The setting "Run indication/Motor protection SAF" or "EAF Indication" must be set to
"Motor protection". A fan alarm will be activated both when there is no pressure signal from the
pressure transmitter, and when the digital signal "SAF Indication" or "EAF Indication" is activated.
16.21 Actuator type
Choose output signals to the actuators connected to the analogue control outputs: 0…10 V DC,
2…10 V DC, 10…0 V DC or 10…2 V DC.
Actuator type
Y1 Heating: 0-10V
Y2 Exchan.: 0-10V
Y3 Cooling: 0-10V
Actuator type
SAF: 0-10V
EAF: 0-10V
Split: 0-10V
Actuator type
Y6 Humidity:
0-10V
Extra unit:
0-10V
Y1 Heat/Y3 cool 0-10V
84
Configuration
Manual Corrigo E Ventilation, revision O
Actuator type
Y4 Extra seq.:
0-10V
Note: Note that although many manufacturers state 0…10 V DC as control signal, for many
actuators the actual control signal is more often than not 2…10 V DC. Check the actuator
documentation carefully. If uncertain, choose 0…10V DC. Although control might be less accurate,
it will ensure that the valve always can be driven to its fully opened and fully closed positions.
16.22 Running time, 3-position actuators
These parameters have no function if analogue actuators are configured.
The values are used to determine the control parameters for 3-position actuators.
It is important to set correct values since incorrect values lead to sloppy control.
Actuator run time
Heating: 255 sec
Exchanger: 255 sec
Cooling: 255 sec
16.23 Step controllers
Step contr. heating 
Step contr. Cooling 
16.23.1 Step controller heating
Step controller heating can be set to sequential or binary.
Step contr. heating
Activation levels

Binary steps

Step controller Heating activation levels for sequential control.
For binary control the activation levels are calculated by the controller depending on the
number of steps involved
Start step 1: 10 %
Stop step 1: 5 %
Start step 2: 45 %
Stop step 2: 40 %
Start step 3: 70 %
Stop step 3: 65 %
Start step 4: 95 %
Stop step 4: 90 %
Control parameters. Heater groups is used to calculate activation levels for binary control.
"Hyst." is the switching differential used for each step when running binary control.
Heater groups: 4
Minimum on/offtime: 60 sec
Hyst.: 0.5 %
Manual Corrigo E Ventilation, revision O
Configuration
85
16.23.2 Step controller cooling
"Step controller Cooling" can be set to sequential or binary.
Step contr. cooling
Sequential

"Step controller Cooling" activation levels for sequential control.
For binary control the activation levels are calculated by the controller depending on the
number of steps involved
Start step 1: 10 %
Stop step 1: 5 %
Start step 2: 50 %
Stop step 2: 45 %
Start step 3: 95 %
Stop step 3: 90 %
Control parameters. Chiller groups is used to calculate activation levels for binary control.
“Hyst.” is the switching differential used for each step when running binary control.
Chiller groups: 3
Minimum on/offtime: 60 sec
Hyst.: 0.5 %
When DX cooling is used in conjunction with pressure controlled or flow controlled fans it
is possible to block DX cooling if the supply air fan control signal falls below a preset
values. The blocking level is individually settable for each DX cooling step.
At lower SAF-output
block step 1: 0 %
block step 2: 0 %
block step 3: 0 %
For a more detailed description, see section 5.1.4 Step controllers.
16.23.3 Step controllers Change-over
The digital output signals "Heating/cooling step 1", "Heating/cooling step 2" and "Heating/cooling
step 3" are used for step controllers during Change-over control (see section 5.1.12). They have the
same functions as other step controller outputs, but are set to either heating or cooling depending on
whether heating or cooling is required. In other words, when heating is active, they will follow the
settings for "Heating 1-3" and when cooling is active they will follow the settings for "Cooling 1-3".
16.24 Recirculation
Recirculation is a function for distributing 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.
Enable temp control
when recirculation:
No
86
Configuration
Manual Corrigo E Ventilation, revision O
Recirculation control can be configured as either air circulation (temperature control inactive) or air
circulation with temperature control. (Only heating, only cooling or both heating and cooling.)
Recirculation control can either have a unique setpoint or follow the supply air setpoint, with an
adjustable offset. The other settings are the same as for normal operation, i.e. if normal operation
has been configured as room control, room control will also be used during recirculation.
End recirculation
control when room
temp. exceeds:
25.0°C
If the room temperature rises above the set limit value, recirculation will be stopped.
Enable free cool
when recirculation:
No
To lower the temperature, it is possible to configure free cooling to be used during recirculation, if
the conditions for free cooling are fulfilled.
Use extra time
group 5 to start
recirculation: No
Recirculation is activated either via a digital input signal or by connecting it to "Timer output 5".
16.25 Pretreatment
Control of dampers and pump for preheated or pre-cooled outdoor air via an underground intake
channel. The digital output ”Pretreatment” is set to preheating when the unit is started and the
outdoor temperature is below the set heating start limit (default 8°C) or to precooling when the
outdoor temperature is above the set cooling start limit (default 19°C).
If the outdoor temperature exceeds the set heating start limit by more than 1°C (fixed), preheating
will be aborted, as well as if the outdoor temperature falls below the cooling start limit by 1°C.
If a sensor is configured in the intake duct (”intaketemp”) this temperature will be compared with
the outdoor temperature. If the temperature in the intake duct does not exceed the outdoor
temperature by more than 1°C (adjustable) 5 minutes (fixed) after start-up when using preheating,
preheating will be aborted. The same conditions apply to precooling, i.e. if the intake temperature is
not more than 1°C (adjustable) cooler than the outdoor temperature, precooling will be aborted.
Pretreatment always starts at start-up of the unit, if the outdoor temperature so permits. If
pretreatment is aborted due to a small difference between the intake temperature and the outdoor
temperature, pretreatment will be blocked for 6 hours. Then pretreatment will start (if the outdoor
temperature so permits) and run for at least 5 minutes.
Outdoortemp for
activating
preheating: 8.0 °C
precooling: 19.0°C
Minimum diff.
outdoortempintaketemp: 1.0°C
16.26 Alarm setting
Permits configuration of all alarms.
Select the appropriate alarm number (from the alarm list). The alarm text for the alarm will be
displayed and the alarm priority can be set; "A-alarm", "B-alarm", "C-alarm" or "not active". The
extra stop function gives, for each alarm, the option to stop or not stop the unit on alarm activation.
Manual Corrigo E Ventilation, revision O
Configuration
87
Run Error supply air
Priority: B-alarm
Extra stop function
Active
Alarm text
The alarm text that should be shown in the display when there is an alarm can be changed using E
tool. For more information, see the E tool manual.
Alarm list
The alarm text and priority columns show the factory set values.
.No
88
Configuration
Alarm text
Pri Description
1
Run Error Supply Air
Fan
B
Malfunction Supply air fan
2
Run Error Extract Air
Fan
B
Malfunction Extract air fan
3
Run Error P1-Heater
B
Malfunction pump, Heating circuit
4
Run Error P1-Cooler
B
Malfunction pump, Cooling circuit
5
Run Error P1Exchanger
B
Malfunction pump, Liquid connected exchanger
6
Filter guard
B
Filter guard pressure switch activated
7
Flow switch
B
Flow switch activated
8
External frost guard
A
External Frost protection thermostat activated
9
Deicing pressure guard
-
Exchanger de-icing pressure switch activated
10 Fire alarm
A
Fire alarm activated
11 External switch
C
"External switch" activated
12 External alarm
B
External alarm activated
13 Supply Air control error B
Supply air temp deviates too much from the setpoint
for too long.
14 Humidity control error
-
The room humidity deviates too much from the
setpoint.
15 High supply air temp
B
Supply air temp too high
16 Low supply air temp
B
Supply air temp too low
17 Supply air temp max
-
Maximum limiting of supply air temp active
18 Supply air temp min
-
Minimum limiting of supply air temp active
19 High room temp
B
Room temp too high during room temp control
20 Low room temp
B
Room temp too low during room temp control
21 High extract air temp
B
High extract air temp during extract air control
22 Low extract air temp
B
Low extract air temp during extract air control
23 Electric heating is
overheated
A
Heater high temperature limit switch activated
24 Frost risk
B
Frost protection function is overriding the control of
the heater output
25 Low frostguard temp
A
Frost protection temperature below frost limit value
26 Low efficiency
B
Heat exchanger efficiency below limit value
27 Sensor error Outdoor
temp
B
Malfunction of connected sensor
28 Analogue de-icing
-
Exchanger de-icing activated by de-icing sensor
Manual Corrigo E Ventilation, revision O
.No
Alarm text
Pri Description
29 Rotation guard
exchanger
B
Exchanger rotation sentinel alarm activated
30 Fire damper is out of
operation
B
Fire damper exercise test failed
31 Supply Air Fan control
error
-
Supply air pressure deviates too much from the
setpoint for too long.
32 Extract Air Fan control
error
-
Extract air pressure deviates too much from the
setpoint for too long.
33 Supply Air Fan external C
operation
SAF run-signal received when unit is stopped
34 Extract Air Fan external C
operation
EAF run-signal received when unit is stopped
35 Ventilation Manual
mode
C
The unit is in manual mode
36 Manual supply air
control
C
Supply air temp controller in manual control
37 Manual supply Air Fan
mode
C
Supply air fan in manual control
38 Manual Supply Air
C
The SAF is in manual mode
39 Manual Extract Air Fan C
mode
Extract air fan in manual control
40 Manual Extract Air
C
The EAF is in manual mode
41 Manual Heater Control
C
The heater is in manual mode
42 Manual exchanger
control
C
Heat exchanger output in manual control
43 Manual cooler control
C
Cooling output in manual control
44 Manual P1-Heater
C
Heating circulation pump in manual control
45 Manual P1-Exchanger
C
Exchanger circulation pump in manual control
46 Manual P1-Cooler
C
Cooling circulation pump in manual control
47 Fire damp. Manual
C
Fire dampers in manual control
48 Internal battery error
A
Internal battery needs replacing
49 Sensor error Supply Air B
temp
Malfunction of connected sensor
50 Sensor error Extract Air B
temp
Malfunction of connected sensor
51 Sensor error Room
temp 1
B
Malfunction of connected sensor
52 Sensor error Room
temp 2
B
Malfunction of connected sensor
53 Sensor error Exhaust air B
temp
Malfunction of connected sensor
54 Sensor error Extra
sensor
B
Sensor error Extra sensor 1
55 Sensor error SAF
pressure
B
Malfunction of connected sensor
56 Sensor error EAF
pressure
B
Malfunction of connected sensor
57 Sensor error Deicing
temp
B
Malfunction of connected sensor
Manual Corrigo E Ventilation, revision O
Configuration
89
.No
90
Configuration
Alarm text
Pri Description
58 Sensor error Frost
Protection temp
B
Malfunction of connected sensor
59 Sensor error CO2
B
Malfunction of connected sensor
60 Sensor error Humidity
Room
B
Malfunction of connected sensor
61 Sensor error Humidity
Duct
B
Malfunction of connected sensor
62 Sensor error Extra unit
temp
B
Malfunction of connected sensor
63 Sensor error External
control SAF
B
Malfunction of connected sensor
64 Sensor error External
control EAF
B
Malfunction of connected sensor
65 Sensor error SAF
Pressure 2
B
Malfunction of connected sensor
66 Sensor error Humidity
outdoor
B
Malfunction of connected sensor
67 Sensor error Intake
temp
B
Malfunction of connected sensor
68 Sensor error Extra
sensor 2
B
Malfunction of connected sensor
69 Sensor error Extra
sensor 3
B
Malfunction of connected sensor
70 Sensor error Extra
sensor 4
B
Malfunction of connected sensor
71 Sensor error Extra
sensor 5
B
Malfunction of connected sensor
72 Sensor error Extra SAF B
pressure
Malfunction of connected sensor
73 Sensor error Extra EAF B
pressure
Malfunction of connected sensor
77 Alarm frequency
converter SAF
A
Malfunction of frequency converter SAF
78 Alarm frequency
converter EAF
A
Malfunction of frequency converter EAF
79 Communication error
Frequency SAF
C
Communication error Vacon NXL/Lenze
SMV/Omron V1000/Emerson
80 Communication error
Frequency EAF
C
Communication error Vacon NXL/Lenze
SMV/Omron V1000/Emerson
81 Communication error
Expansion unit 1
C
Communication problem with a controller connected
to port2
82 Communication error
Expansion unit 2
C
Communication problem with a controller connected
to port2
83 Warning Frequency
converter SAF
C
Alarm from frequency converter via Modbus
communication
84 Warning Frequency
converter EAF
C
Alarm from frequency converter via Modbus
communication
85 Output in manual mode C
Analogue or digital output in manual mode
86 Time for service
Time for service
C
Manual Corrigo E Ventilation, revision O
.No
Alarm text
Pri Description
87 Manual Y4-Extra
Sequence control
C
Y4-Extra sequence in manual control
88 Restart blocked after
power on
B
Restart blocked due to earlier power failure
16.27 Communication
16.27.1 Modbus communication
Corrigo E can be connected to a network for Modbus communication. You do not need an
activation code.
Modbus slave communication, Port 1
Not Active
If Modbus communication is activated, you can set the address etc.
Modbus communication takes place using 1 stop bit.
Modbus Address: 1
Speed: 9600 bps
Two stop bits:Yes
Parity:No
Note: Only one stop bit can be used.
16.27.2 Function port 2
Units connected to port two can be set to "Slave", "Master", "Expansion unit", "Modbus master" or
”Both Expansion unit and Modbus master”. A 2-port Corrigo is required. Port two is then used for
communication with the expansion units or frequency converters.
Slave
For connection to E tool.
Function Port 2
Slave
Master
For future use.
Function Port 2
Master
Modbus master
For control of up to two Vacon NXL/Lenze SMV/Omron V1000/Emerson Commander frequency
converters using Modbus communication. Miscellaneous alarms and indications can be read from
the frequency converters. For a complete list of alarms, see the alarm list. For communication
addresses, see the Corrigo variable list.
Manual Corrigo E Ventilation, revision O
Configuration
91
The Corrigo Modbus settings are listed below. They are not adjustable and must also be set in the
Vacon NXL/Lenze SMV/Omron V1000/Emerson Commander frequency converters.
Modbus address: Supply air fan = 1, Extract air fan = 2
Speed: 9600 bps, 1 stop bit, no parity
For additional settings for every model, see appendix 1 at the end of this document.
Type of frequency
converter connected
via Modbus:
Vacon NXL
Expansion unit
In order to connect additional I/Os (in- and outputs) to the Corrigo, port two should be set as an
expansion unit (only Corrigo E controllers can be connected). It is possible to connect two units,
giving a maximum number of 28*3 = 84 inputs/outputs. The expansion controllers must have the
addresses 241:1 and 241:2 respectively (ELA:PLA).
Expansion unit 1
None
Expansion unit 2
None
To initiate the expanded controllers, select ”Expansion unit” at start-up (see below). If the controller
does not contain program version 3.0 or later, the initiation must be made via E tool (see the E tool
manual). However, this requires that the controller hardware is of a Corrigo generation 2 (-S). After
initiating the expansion units and setting the master controller, all inputs and outputs are available
for configuration in the master controller under "Configuration" / "Inputs/Outputs" (the expansion
controllers’ in-/outputs are named Exp1/Exp2).
Ventilation
Heating
Boiler
Expansion Unit 1
Expansion Unit 2
Expansion unit and Modbus master
Frequency converters can be used in combination with expansion controllers on the same port. The
master controller will switch the port between Modbus and EXOline in order to communicate with
the frequency converters via Modbus and with the expansion controller via EXOline.
Function Port 2
Exp.and Modbusmaster
Press RIGHT to select which expansion units are to be connected.
Expansion unit 1
None
Expansion unit 2
None
Then go a step down to select which frequency converters are to be connected. For additional
settings for frequency converters, see appendix at the end of this document.
Type of frequency
converter connected
via Modbus:
None
92
Configuration
Manual Corrigo E Ventilation, revision O
16.27.3 Dial-up modem
With the help of a dial-up modem, Corrigo E can be connected to a supervisor EXO-system. We
recommend the modem Modem56kINT485kit. The default password is exo.
DialUpModem: No
Number:
Password:
exo
16.27.4 Alarm forwarding via SMS
Via a connected GSM modem, Corrigo can send an A-alarm message to up to three different
recipients. You do not need an activation code to use this function. The alarm message consists of
an alarm text, the unit name (the same text that is shown in the first row of the start display) and the
time when the alarm occurred. When there is an alarm, the message is sent to the first number on the
list. If the recipient does not send an SMS within five minutes to confirm that the message has been
received, Corrigo will send the message to the next number on the list.
SMS: Not Active
Nbr1:
Nbr2:
Nbr3:
16.28 Other parameters
16.28.1 Start and stop delays for the fans
Use start delay if you wish one of the fans to start before the other and for example if you wish to
give the close-off dampers time to open before starting the fans. Use stop delay e.g. to create a cooldown period when using electric heating. In order to avoid letting in too cold air, e.g. in the winter,
the heat exchanger will continue to run during the stop delay.
Delay SAF
Start: 60 sec
Stop: 30 sec
Delay EAF
Start: 0 sec
Stop: 30 sec
16.28.2 Retardation time
When switching two-speed fans from 1/1-speed to 1/2-speed there is a settable retardation time. The
same time applies to both fans.
Retardation time
1/1-1/2speed: 10
sec
16.28.3 Heating at start-up and high speed blocking
At outdoor temperatures below the set value, the heating output will be forced to 100% before startup.
Manual Corrigo E Ventilation, revision O
Configuration
93
Two speed fans and pressure controlled fans can be blocked from using high speed at outdoor
temperatures lower than the set value. This function should not be combined with the function
”Outdoor compensation of pressure setpoint”. See the section Demand control.
Both functions need an outdoor temperature sensor.
Outd.temp for
heat start: 3.0°C
Blocking of
1/1-speed: -10°C
16.28.4 Start delay exchanger
Startdelay Exch.
0
sec
16.28.5 Exchanger to 100% at start and alarm delay at start
To minimise the risk of freeze-up problems, the heat exchanger can be forced to maximum capacity
for the set time at start-up.
To eliminate the risk of, for example, fan pressure alarms at start-up, all alarm functions can be
suppressed for the set time.
Exch 100% at start
2 sec
Alarm delay at start
60 sec
For the function ”Slave control of the extract air fan”, the fan will start directly at 50 % after the
start delay, in order for the heating of the exchanger to work for this operating mode. When the
supply air fan starts, the extract air fan will be slave controlled by the flow in the supply air duct.
16.28.6 Split controller signal
Splits the controller output (Heating Controller Output signal = HCOut) between the analogue
temperature control output signals Y1, Y2 and Y3 for "Heating", "Heat exchanger" and "Cooling".
To create a neutral zone, leave a percentage gap between sequences.
The set P-band for the supply air controller is for the whole controller signal. This means that the Pband for each sequence is proportionate to the split percentage values given to sequences.
Example:
P-band for the supply air controller is set to 33K. The HCOut is set so that cooling gets 0…30 % =
30 %, the exchanger gets 32…50 % = 18 % and the heater gets 54…100 % = 46 %. The individual
P-bands will then be:
Chiller: 30 % of 33°C = 10°C
Exchanger: 18 % of 33°C = 6°C
Heating: 46 % of 33°C = 15°C
The remaining 2°C are the neutral zone between cooling and exchanger.
Split settings
Exchanger
0% at HCOut= 32%
100% at HCOut= 50%
94
Configuration
Manual Corrigo E Ventilation, revision O
Split settings
Heating
0% at HCOut= 54%
100% at HCOut= 100%
Split settings
Cooling
0% at HCOut= 30%
100% at HCOut= 0%
Split settings
Extra Sequence Y4
0% at HCOut= 0%
100% at HCOut= 0%
Output signal
100%
0%
Controller
signal
100%
Cooling
Heat
exch.
Heating
54%
50%
32%
30%
0%
Heat demand
16.28.7 Outdoor temp. for control mode change
If the unit is configured for combined Supply air/Room control this menu permits the setting of the
change-over outdoor temperature.
Outdoor temp for
control mode change
13.0°C
16.28.8 Split of optional temp. sequence
Any one of the analogue temperature control output sequences "Y1", "Y2" and "Y3" can be split,
for example to control two heating valves in sequence. The split is always even, 50/50, which means
that each part of the split will have half the part of the P-band assigned to the output. An analogue
output must be assigned to the output signal “Split”. On increasing output demand, the regular
output is always run first and then the output that has been configured as Split.
Split optional
temperature sequence
Y1 Y2 Y3
No split
Manual Corrigo E Ventilation, revision O
Configuration
95
16.28.9 Fast stop on overheating
If this function is active, the fans will be immediately stopped when there is an overheating alarm,
regardless of the set cool-down time.
Fast stop on alarm
“Electric heating is
overheated”: No
16.28.10 Automatic restart at power-up
The function ”Automatic restart at power-up” makes it possible to block automatic restart of the unit
at power-up. At power-up, the B-alarm ”Restart blocked after power on” is generated. Once this
alarm has been acknowledged, the unit will start.
Automatically
restart after
power on:
Yes
16.29 System
16.29.1 Change language
Use this menu to change the display language.
Choose language
English
Note, this menu is also directly accessible by holding the OK-button depressed during power-up or
by pressing right arrow three times when the start display is shown.
The different language files are stored in the application memory and are downloaded to the work
memory. If a Corrigo via E tool has been reloaded with a newer program revision than the factory
revision, 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.
16.29.2 Choose start display, the text normally shown on the
display
There are five different to choose from.
Type 1
The text on the first line can be changed using E tool.
The second line shows the date and time.
The third line shows the present running status.
The fourth line shows the present temperature setpoint and actual values.
Vent unit 18 PX
2004-08-15 11:28
System: Running
Sp:22.0°C Act:21.8°C
96
Configuration
Manual Corrigo E Ventilation, revision O
Type 2
The first line shows the date and time.
The second line shows the present running status.
The third line shows the present temperature setpoint and actual values.
The fourth line shows the present temperature control output values.
2004-08-15 11:28
System: Running
Sp:22.0°C Act:21.8°C
Y1:0% Y2:93% Y3:0%
Type 3
The first line shows the date and time.
The second line shows the present running status.
The third line shows the present temperature setpoint and actual values.
The fourth line shows the present SAF and EAF pressures.
15/03/2004 11:28
System: Running
Sp:22.0°C Act:21.8°C
SAF:1100Pa EAF:1050Pa
Type 4
The text on the first line can be changed using E tool.
The second line shows the date and time.
The third line shows the present running status.
Vent unit 18 PX
2004-03-15 11:28
System: Running
Type 5
The text on the first line can be changed using E tool.
The second line shows the date and time.
Vent unit 18 PX
2004-03-15 11:28
16.29.3 Automatic summer-/wintertime change-over
When Corrigo is set on automatic summertime/wintertime change-over, the timer will automatically
change between summertime and wintertime according to European standard.
Automatic summer/
winter time change
over
Yes
Manual Corrigo E Ventilation, revision O
Configuration
97
16.29.4 Address
Corrigo E uses the addresses below when connecting to Corrigo E tool, and when multiple
controllers are connected in an EXO network. E tool normally uses the addresses below, so if an
address is changed, the new address must also be entered in E tool. If several Corrigo are connected
in a network, all the units must have the same ELA address, but each unit must have a unique PLA
address.
Address
PLA: 254
ELA: 254
16.29.5 Display anywhere (Remote control)
If multiple Corrigo units are connected in a network, it is possible to remote control a unit in the
network from a unit with display. You do this by entering the address of the unit you wish to remote
control in the unit with display. The function is aborted by pressing the buttons UP, OK and DOWN
simultaneously.
Address for remote
communication
(PLA:ELA) : 00:00
16.29.6 Automatic logoff
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 in units of 5 seconds. Standard 60
units = 5 minutes.
The automatic logoff can be removed, see 8.4.
Time before user
automatically
logged off:60
(Unit 5 sec)
16.29.7 Activation of start-up wizard
The start-up wizard is a special program which at the first start-up guides the operator through a
number of start-up menus where you set certain operation parameters. For more information, see the
section Start-up wizard.
Activate wizard
No
98
Configuration
Manual Corrigo E Ventilation, revision O
Chapter 17 Expansion model
There are eight different 2-port Corrigo models with 15/28 inputs/outputs, with or without display,
and with or without TCP/IP port. For a list of the different models, see the Corrigo E model
overview in chapter 2.
17.1 Port 1
On a 2-port Corrigo, port one is used for connection to E tool and possibly a SCADA system. On an
Exx2S-WEB model, port 1 is the TCP/IP output.
17.2 Port 2
Port 2 is used for expansion units, e.g. expansion controllers and the Vacon NXL/Lenze
SMV/Omron/Emerson frequency converters. A maximum of two frequency converters and two
expansion controllers can be connected. The controllers must be of the type Corrigo E. There is no
point in utilising slave controllers with display since the display cannot be used or show anything.
However, an external display is required when starting up slave controllers without display for the
first time (if the configuration is not done via E tool). All configuration takes place either via E tool
or via the display on the master controller. All inputs and outputs can be viewed in the master
controller. For configuration of port 2, see section 16.27.2.
From version 3.1, frequency converters and expansion units can be used together, connected to port
2.
17.3 Wiring
17.3.1 Vacon/Lenze/Omron/Emerson frequency converters
If the Corrigo is intended to control of one or two of the Vacon NXL/Lenze SMV/Omron
V1000/Emerson frequency converters, Modbus communication via port two is utilised.
For additional settings for frequency converters, see appendix at the end of this document.
17.3.2 Expansion controllers EXOline
Communication between the master and expansion controllers takes place via EXOline. The slave
controllers will be given the addresses 241:1 and 241:2 (ELA:PLA) respectively.
Manual Corrigo E Ventilation, revision O
Expansion model
99
17.3.3 Expansion controllers LON
For a 2-port Corrigo to be able to communicate via LON, the first expansion controller must have a
LON port. Communication between the master and expansion controllers takes place via EXOline.
100
Expansion model
Manual Corrigo E Ventilation, revision O
Chapter 18 Other functions
18.1 Alarm handling
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.
Sensor error Supply Air
temp
24 Aug 10:43 Class:B
Reset

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. For alarms that have reset the text “Reset” is shown. Acknowledged, still
active or blocked alarms are indicated by 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. The LED is
then lit.
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.
Since blocking alarms can be potentially hazardous, you need a high user access to block alarms.
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.
18.2 Free text
If RIGHT is pressed once when the start-menu is shown, a menu showing text of your choice is
displayed. The text can be used to show information concerning the commissioning company, name
and phone number to service personnel etc. The easiest way to enter text is to use E tool, but the
buttons can also be used. Four lines of 20 characters.
18.3 Revision number
If RIGHT is pressed twice when the start-menu is shown, a menu showing the program revision
number and ID number is displayed.
Manual Corrigo E Ventilation, revision O
Other functions
101
18.4 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 via E tool has been reloaded with a newer program revision than the factory
revision, 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.
18.5 Indication LEDs
Status indication can be found in the upper left corner of the controller. For controllers with display,
the alarm indication and change mode LEDs are located in the keypad area.
Status indication
Designation
Colour
Description
Tx
Green
Port 1, Transmitting
Rx
Green
Port 1, Receiving
Serv (-LON models)
Yellow
Service LED LON, commissioning
LAN (-WEB models)
Yellow/Green
Green: Connected
equipment
to
other
network
Blinking green: Network traffic
Green/Red
Blinking yellow: For identifying
Power on/Battery error

Red
Alarm indication

Yellow
Change mode
P/B (Power/Battery)
Controllers with built-in
display:
18.6 Changing the battery
This procedure requires knowledge of proper ESD protection; i.e. an earthed wristband must be
used!
When the alarm ”Internal Battery” is activated and the battery LED lights up red, the battery for
backup of program memory and real-time clock has become too weak. The battery is replaced as
described below. A backup capacitor saves the memory and keeps the clock running for at least 10
minutes after the power supply is removed. Therefore, if the battery replacement takes less than 10
minutes, there will be no need to reload the program, and the clock will continue to run normally.
The replacement battery must be of the type CR2032.
Remove the cover by pressing down the locking torques at the edge of the cover using a small
screwdriver, and at the same time pulling the edges outwards.
102
Other functions
Manual Corrigo E Ventilation, revision O
Battery location
Grip the battery firmly with your fingers and lift it upwards until it rises from its holder.
Press the new battery firmly down into place. Note that to preserve correct polarity, the battery can
only be inserted the “right way round”.
18.7 Start-up wizard
The start-up wizard is a function that can be activated in "Configuration"/"System". See the section
Activation of start-up wizard.
If the wizard has been activated, the operator will access a number of menus at power-up. These
menus contain certain operation parameters that should be set.
The wizard is useful when the controller is delivered pre-configured together with an air handling
unit. After the controller has been configured, the manufacturer of the air handling unit will activate
the start-up wizard, which will help the operator to set setpoint values, running times etc. without
having to log on.
In the first menu, the language is chosen.
Manual Corrigo E Ventilation, revision O
Other functions
103
Choose language
English
In the second menu, the setpoint is set. The appearance of the menu depends on which control type
has been configured.
Supply air temp
Setp.: 18°C
In the third menu, time and date are set.
Time: 14:27
Date: 2008-11-25
Weekday: Tuesday
In the fourth menu, the running time for normal speed Monday – Friday is set.
Normal speed
Monday  Friday
Per 1: 07:00 – 16:00
Per2: 00:00 – 00:00
In the fifth menu, the running time for normal speed Saturday, Sunday and holiday is set.
Normal speed
Saturday  Holiday
Per 1: 00:00 – 00:00
Per2: 00:00 – 00:00
If 2-speed fans or pressure/flow controlled fans have been configured, the corresponding times for
reduced speed will be displayed in the sixth and seventh menus.
Reduced speed
Monday  Friday
Per 1: 07:00 – 16:00
Per2: 00:00 – 00:00
Reduced speed
Saturday  Holiday
Per 1: 00:00 – 00:00
Per2: 00:00 – 00:00
In the last menu you turn off the wizard, and the Corrigo will switch to normal running mode. The
selected values will be used.
The wizard will not be shown again.
104
Other functions
Manual Corrigo E Ventilation, revision O
Chapter 19 Index
A
Access rights, 54
Actuator type, 84
Address, 98
Air control, 61
Alarm
Setting, 87
Alarm events, 57
Alarm forwarding, 93
Alarm list, 88
Alarm settings, 71
Alarms, 48
Alarm delay at startup, 94
Alarm delays, 72
Alarm handling, 101
Alarm limits, 71
Alarm list, 88
Analogue inputs, 13
Analogue outputs, 13
Automatic restart at power-up, 96
B
Battery exchanger. See Liquid connected exchanger
Blocking of automatic restart at power-up, 50
Blocking of high speed, 93
Buttons, 52
C
Cascaded extract air temperature control, 29
Cascaded room temperature control, 29
Change language, 96, 102
Change password, 55
Change-over, 39
Changing the battery, 102
Close-off dampers, 47
Communication, 91
Configuration, 74
Actuator type, 84
Alarm setting, 87
Battery type, 78
Control function, 76
Cooling control, 79
Demand control, 81
Exchanger de-icing, 83
External setpoint, 83
Fan control, 77
Fire dampers, 82
Free cooling, 81
Heat exchangers, 79
Heater type, 78
Humidity control, 82
In- and outputs, 74
Objects, 77
Other parameters, 93
Pump control, 80
Run indication / Motor protection, 83
Running time, 3-position actuators, 85
Step controllers, 85
Support control, 81
System, 96
Control function, 76
Control pressure
Settings, 70
Control signal, analogue outputs. See
Cooling recovery, 38, 83
Crosswise interlock, 78
D
Damper control, 47
Damper limit, 83
De-icing Liquid connected exchanger. See Heat
exchangers Liquid connected exchanger
De-icing plate exchanger. See Heat exchangers Plate
exchanger
Demand control
Setpoint, 62
Demand controlled ventilation, 44, 81
Mixing dampers, 33
Dial-up modem, 93
Digital inputs, 13
Digital outputs, 13
Display, 52
DX cooling, 34, 85
Min limit lowering, 79
Setting, 85
DX cooling, blocking, 79, 80
E
ELA, 98
Electric heating, 31
Enthalpy control, 38, 83
Exchanger de-icing, 32, 83
Setpoint, 59
Expansion model, 99
Expansion unit and Modbus master, 92
Extended running, 65
External setpoint, 39, 83
Extra control circuit, 40
Extra flow sensors supply air and extract air, 40
Extra sequence Y4, 78
Extra temperature sensor, 40
Analogue outputs, 13
Digital inputs, 13
Digital outputs, 13
Input and output lists, 15
Universal inputs, 13
Intermittent drift, 81
F
L
Fans
Control, 41
Delays, 93
Frequency control external control signal, 43
Frequency control flow, 42
Frequency control SAF with EAF slave, 43
Frequency control SAF with flow control EAF, 43
Interlock, 78
Manual frequency control, 43
Pressure control, 42
Retardation time, 93
Timer output ½ speed, 65
Timer output 1/1 speed, 64
Fire dampers, 47, 82
Exercising, 47
Flow control
Extra compensation curve, 42
Outdoor compensation, 42
Setpoint, 42
Settings, 70
Free cooling, 37, 81
Free text, 101
Frost protection, 30
Language, change, 96, 102
LEDs, 52, 102
Liquid connected exchanger, 32
Log off, 54
Log on, 54
Logoff, 98
H
Hardware overview, 9
Heat exchanger
Mixing dampers, 33
Heat exchanger efficiency monitoring, 38, 60
Heat exchangers, 32
Liquid connected exchanger, 32
De-icing, 32
Outdoor temp control of exchangers, 33
Plate exchanger, 32
De-icing, 32
Rotating exchanger, 32
Start condition, 94
Holidays, 66
Hot start, 93
Humidity control, 40, 63, 82
Setpoint, 63
Settings, 71
I
In-/Outputs, 57
Indication LEDs, 102
Information screen, 101
Inputs and outputs, 13, 74
Analogue inputs, 13
M
Manual / Auto, 67
Menus, 52
Mixing dampers, 33
Modbus, 91
Model overview, 9
Motor protection / Run indication, 83
N
Navigating the menus, 52
O
Objects, 77
Other functions, 101
Other parameters, 93
Outdoor temp control of exchanger, 33
Outdoor temp. for control mode change, 95
Outdoor temperature compensated supply air control, 28
Outdoor temperature dependent switching between supply
air temperature control and extract air temperature
control, 29
Outdoor temperature dependent switching between supply
air temperature control and room temperature control,
29
Outputs. See
Override of reduced speed for DX cooling, 80
P
Password, 55
PLA, 98
Plate exchanger, 32
Port 2, function, 91
Pressure control, 42
Extra compensation curve, 42
Outdoor compensation, 42
Setpoint, 42
Pretreatment, 87
Pump control, 46, 80
R
Recirculation, 39, 86
Remote control, 98
Restore alarm, 73
Revision number, 101
Rotating exchanger, 32
Run indication / Motor protection, 83
Running mode, 56
Running mode, unit, 56
Running time, 3-position actuators, 85
S
Save and restore settings, 73
Selected functions, 56
Setpoint fan control, 61
Setpoint humidity control, 63
Setpoint, external, 39, 83
Setpoints temperature, 58
Settings, 69
Shutdown mode, 30
SMS, 93
Split of optional temp. sequence, 95
Split settings, 94
Start menu, 96
Starting and stopping the unit, 50
Start-up wizard, 98, 103
Status indication, 102
Step controllers, 34, 85
Setting, 85
Summer time, 97
Supply air control, 28
Support control, 36, 81
Cooling, 36
Heating, 36
T
Temperature, 58
Temperature control, 27
Settings, 69
Time settings, 64
Time/Date, 64
Timer output ½ speed, 65
Timer output 1/1 speed, 64
Timer outputs, 65
Time-switch outputs, 48
Types of chillers, 34
U
Universal inputs, 13
V,W
Vacon/Lenze/Omron/Emerson frequency converters, 99
Water heating, 30
Wizard, 98, 103
Appendix I
Frequency converters
When communicating via frequency converters through Modbus, it is sometimes necessary to
change certain settings in the frequency converter. Below are described what settings are necessary
in the various models:
Vacon NXL
No settings necessary.
Lenze
No settings necessary.
Omron V1000
Connected via RS485:

R+ is connected to S+

R- is connected to S-

R+/S+ is connected to B on port 2

R-/S- is connected to A on port 2
Parameters
The following parameters must be set from the display of the frequency converter:

H5-01 (0x425): Slave address, set to = 1 for Supply air fan and = 2 for Exhaust air fan

H5-07 (0x42B): RTS Control, set to = 1 (enabled) for activation of RS485

o1-03 (0x502): Frequency reference units, set to = 1 for 0-100%.

H5-03 (0x427): Parity, set to = 0 (no parity)
Default values should be used for remaining parameters. The following values may not be changed:

H5-02 (0x426): Communication speed, default =3 (9600)

H5-04 (0x428): Stopping method after communication error, default = 3 (no stop)

H5-11 (0x43C): Communication Enter Function, default=1 (Enter command not
necessary)

H5-12 (0x43D): Run command, default=0 (bit 0=forward start/stop, bit 1= reverse
start/stop)

b1-01 (0x180): Frequency Reference selection 1, default = 2 (via Modbus)

b2-01 (0x181): Run command selection 1, default = 2 (via Modbus)
Emerson Commander
Connections RS485-RJ45:

RJ45:2 (orange) is connected to B on port 2

RJ45:7 (white/brown) is connected to A on port 2

Eventual termination resistor is connected between RJ45:1 (white/orange) and RJ45:8 (brown).
If Modbus communication is not initialised after powering up, disconnect the termination resistor
and try again.
Terminals

Connect terminal B4 (Drive enabled) to B2 (+24V)

Connect terminal B5 (Forward) to B2 (+24V)
Parameters
The following parameters must be set from the display of the frequency converter:

44: Slave address, set to = 1 (default) for Supply air fan and = 2 for Exhaust air fan

43: Baud rate: 9.6 (default: 19.2)

Default values should be used for remaining parameters.
Changing parameters

Deactivate the unit. The display should read “iH 0.0”. This is performed by
opening terminal B4.

Set parameter 10 to ”L3”, i.e. all parameters up to and including 95 can then be altered.

Set parameter 43 to 9.6 (9600 baud).
R E G I N
–
T H E
C H A L L E N G E R
I N
B U I L D I N G
A U T O M A T I O N
AB Regin
Head office
Box 116, S-428 22 Kållered,
Phone: +46 31 720 02 00
[email protected]
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Fax: +46 31 720 02 50
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Regin Controls SARL
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D-12249 Berlin
F-93500 Pantin
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Hong Kong
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