AB Regin Corrigo E81D-3 User manual

Corrigo manual
Ventilation application
© Copyright AB Regin, Sweden, 2013

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 tool©, EXOdesigner, EXOreal, EXOrealC, EXOline, EXO4, EXO4 Web Server, Optigo, Regio and Regio tool are
registered trademarks of AB Regin.
Windows, Windows 2000, Windows XP, Windows Vista, Windows 7, Windows 8 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 R, September 2013
Software revision: 3.3

Table of contents
CHAPTER 1 ABOUT THE MANUAL ..................................................................................................6
More information ........................................................................................................................6
CHAPTER 2 ABOUT CORRIGO .........................................................................................................7
2.1 News in version 3.3................................................................................................................7
2.2 Application choice .................................................................................................................7
2.3 Technical data......................................................................................................................12
CHAPTER 3 INSTALLATION AND WIRING...................................................................................... 14
3.1 Installation ...........................................................................................................................14
3.2 Wiring ..................................................................................................................................14
CHAPTER 4 COMMISSIONING ...................................................................................................... 21
4.1 How to do it .........................................................................................................................21
CHAPTER 5 FUNCTIONAL DESCRIPTION ....................................................................................... 24
5.1 Temperature control ...........................................................................................................24
5.2 Extra control circuit .............................................................................................................37
5.3 Humidity control..................................................................................................................38
5.4 Fan control...........................................................................................................................39
5.5 Pump control .......................................................................................................................45
5.6 Damper control....................................................................................................................45
5.7 Extended running and External switch ................................................................................46
5.8 Time-switch outputs ............................................................................................................47
5.9 Alarms..................................................................................................................................47
CHAPTER 6 STARTING AND STOPPING THE UNIT ......................................................................... 49
6.1 Start conditions....................................................................................................................49
6.2 Stop conditions ....................................................................................................................49
6.3 Start sequence .....................................................................................................................50
6.4 Stop sequence .....................................................................................................................50
CHAPTER 7 DISPLAY, LEDS AND BUTTONS ................................................................................... 51
7.1 Display .................................................................................................................................51
7.2 LEDs .....................................................................................................................................51
7.3 Buttons ................................................................................................................................51
7.4 Navigating the menus ..........................................................................................................51
CHAPTER 8 ACCESS RIGHTS.......................................................................................................... 53
8.1 Log on ..................................................................................................................................53
8.2 Log off ..................................................................................................................................53
8.3 Change password.................................................................................................................54
8.4 Change password to remove automatic logoff ...................................................................54
CHAPTER 9 RUNNING MODE ....................................................................................................... 55
9.1 Running mode, unit .............................................................................................................55
9.2 Selected functions ...............................................................................................................55
9.3 Alarm events........................................................................................................................56
9.4 Inputs/Outputs ....................................................................................................................56
CHAPTER 10 TEMPERATURE ........................................................................................................ 57
CHAPTER 11 AIR CONTROL........................................................................................................... 62
CHAPTER 12 HUMIDITY CONTROL................................................................................................ 65
CHAPTER 13 TIME SETTINGS ........................................................................................................ 66
13.1 Time / Date ........................................................................................................................66
13.2 Timer Normal speed ..........................................................................................................66
13.3 Timer Reduced speed ........................................................................................................67

13.4 Extended running ..............................................................................................................67
13.5 Timer outputs 1…5.............................................................................................................67
13.6 Holidays .............................................................................................................................68
CHAPTER 14 MANUAL / AUTO ..................................................................................................... 69
CHAPTER 15 SETTINGS ................................................................................................................. 72
15.1 Control temp......................................................................................................................72
15.2 Control pressure ................................................................................................................73
15.3 Control flow .......................................................................................................................73
15.4 Humidity control................................................................................................................74
15.5 Control Extra unit...............................................................................................................74
15.6 Alarm settings....................................................................................................................74
15.7 Save and restore settings...................................................................................................76
CHAPTER 16 EXPANSION MODEL ................................................................................................. 77
16.1 Ports...................................................................................................................................77
16.2 Wiring ................................................................................................................................77
CHAPTER 17 CONFIGURATION ..................................................................................................... 79
17.1 Inputs and outputs.............................................................................................................79
17.2 Sensor settings...................................................................................................................81
17.3 Control function.................................................................................................................82
17.4 Fan control.........................................................................................................................82
17.5 Extra control circuit ...........................................................................................................83
17.7 Extra sequence Y5..............................................................................................................84
17.8 Heating coil ........................................................................................................................84
17.9 Exchanger ..........................................................................................................................84
17.10 Chiller...............................................................................................................................85
17.11 Pump control ...................................................................................................................86
17.12 Free cooling .....................................................................................................................86
17.13 Support control................................................................................................................87
17.14 CO2Demand control ........................................................................................................87
17.15 Fire function.....................................................................................................................87
17.16 Humidity control..............................................................................................................88
17.17 Exchanger de-icing...........................................................................................................88
17.18 Cooling recovery ..............................................................................................................88
17.19 Minimum limit dampers ..................................................................................................88
17.21 External setpoint..............................................................................................................89
17.22 Run indication / Motor protection ..................................................................................89
17.23 Actuator type...................................................................................................................90
17.24 Running time, 3-position actuators .................................................................................90
17.25 Step controllers................................................................................................................91
17.26 Recirculation ....................................................................................................................92
17.27 Pretreatment ...................................................................................................................93
17.28 Alarm setting ...................................................................................................................93
17.29 Communication ...............................................................................................................97
17.30 Other parameters ............................................................................................................99
17.31 System ...........................................................................................................................102
CHAPTER 18 OTHER FUNCTIONS................................................................................................ 105
18.1 Alarm handling.................................................................................................................105
18.2 Free text...........................................................................................................................105
18.3 Revision number..............................................................................................................105
18.4 Language..........................................................................................................................106
18.5 Indication LEDs ................................................................................................................106
18.6 Changing the battery .......................................................................................................106
18.7 Start-up wizard ................................................................................................................107
18.8 Energy calculation............................................................................................................109
18.9 SFP (Specific Fan Power) ..................................................................................................109

INDEX ........................................................................................................................................ 110
APPENDIX FREQUENCY CONVERTERS ........................................................................................ 114

6 Chapter 1 About the manual Manual Corrigo Ventilation, revision R
Chapter 1 About the manual
This manual covers all the models in the Corrigo series used with the ventilation application. This
revision covers program revisions from 3.3.
More information
More information about Corrigo can be found in:
•Corrigo ventilation user guide – A simplified manual
•Manual E tool©– Manual on how to configure the controllers using the PC software
E tool©, available in Swedish, English, German and French.
•LON-interface variable list – Variable list for the Corrigo series, available in Swedish and
English.
•Corrigo ventilation variables for EXOline, Modbus and BACnet – Variable list for
EXOline, BACnet and Modbus communication, available in English.
•Corrigo ventilation Communication Guide – The most common Modbus and BACnet
variables.
•Editable PDF files for Corrigo
•CE - Declaration of conformity, Corrigo
The information is available for download from Regin's website, www.regin.se.

Manual Corrigo Ventilation, revision R Chapter 2 About Corrigo 7
Chapter 2 About Corrigo
The Corrigo series comprises three model sizes: 8, 15 or 28 in-/outputs.
In each third generation model Corrigo, all applications are loaded in a separate memory area. The
models have article number E...-3 (where 3 stands for third generation). A new feature in version
3.3 are models with three communication ports. The 3 port Corrigo models have article number
E...3-3 (where the initial “3” stands for 3 ports). For more detailed information, see chapter 16.
The controllers are available with or without a front panel display and buttons. For all third
generation units, both with and without display, a separate, cable-connected terminal E3-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.
2.1 News in version 3.3
•The operating system has been further improved and is now called EXOrealC.
•Support for three communication ports.
•BACnet/IP is now available as a communication protocol.
•New filter alarm: Separate filter alarms.
•Analogue filter alarm, filter pressure alarm.
•Temperature alarm for extra sensors 1-5.
•Support for 0…10V outdoor sensor and room sensor.
•Modulating recirculation air damper, Y4-Extra sequence.
•Communication with Danfoss model Frequency converters FC 101 now supported.
•Additional Modbus signals.
2.2 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.
E283W-3
PLA: 254 ELA: 30
Baud#1: 9600
Rev: 3.3-1-01
The initial screen details the model of the Corrigo unit, its communication address, communication
speed and which software revision is loaded into the unit.
Press down arrow to go to ”Application choices”.

Application
System
Communication
Time/Date
Input/Output

8 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision R
Use the up and down arrows to move the cursor in the left edge of the display to the function you
wish to select. Select “Application” and press the right arrow.

Corrigo Vent.131021
Expansion unit 1
Expansion unit 2
Corrigo Vent.140212
Move the cursor to the desired application. Press the right arrow.
Title:
Corrigo Ventilation
3.3
Activate? No
Press ”OK” and change ”No” into ”Yes”. Press ”OK”.
The most recently loaded ventilation application will now be entered into memory. This will take
approx. 30 seconds. The application start screen is displayed.
To change languages, press the right arrow 3 times and then choose a language in the same way you
selected an application.
2.2.1 Additional menu options
System:
Information on the Corrigo model and serial number.
EXOreal version.
MAC address and IP address.
Battery status and memory size.
Memory status and voltage frequency.
Communication:
Communication mode selection.
Serial:
Enables selecting EXOline address, communication speed, port mode and routing span.
TCP/IP:
Enables EXOline address selection and choice of DHCP (Yes/No).
Also enables manual IP address and subnet mask setting before the Corrigo is initiated. Default
Gateway and DNS name is also available under this menu.
Current subnet mask, gateway and DNS name.
Main computer status.
Main computer IP address.
Permit connection to main computer.
TCP port routing to serial port 1 or 2.
Time/Date:
Permits setting the time and date.

Manual Corrigo Ventilation, revision R Chapter 2 About Corrigo 9
Input/Output:
Enables In-/Output reading and writing.
2.2.2 Ventilation application
The temperature controller is based on a supply air PI-controller for heating control with a pre-
programmed 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. Certain functions are necessary,
while others can be considered optional. 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- or 3-port Corrigo with two expansion units).
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 control).
•Extract air control (cascade control).
•Seasonal switching between supply air temperature control and room/extract air
temperature control.
•Outdoor compensated room/extract air control.
•Extra, separate temperature control circuit for after-heaters, etc.
•Extra control sequences Y4 and Y5 (in addition to Y1, Y2 and Y3) for free integration
into the controller output.
With control of:
•Heat exchanger (liquid connected, plate or rotating) or mixing dampers.
•Heating coil: Water with or without frost protection or electric with high temperature limit
switch.
•Cooling: Water or DX cooling in up to 3 steps.
•Circulation pumps heating, cooling, exchanger.
Fan control
•1- or 2-speed supply air 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) or opposite function (pressure controlled extract air fan with slave
connected supply air fan, output dependent or flow dependent).
Humidity control
It is possible to use either humidification or dehumidification, or to use combined humidification
and dehumidification.
Timer control
For starting and stopping the unit, annual clock function. Up to 5 timer outputs for control of
external functions such as lighting, doorlocks etc.

10 Chapter 2 About Corrigo Manual Corrigo Ventilation, revision R
Demand controlled ventilation
In buildings with strongly varying occupancy the fan speeds or mixing dampers can be controlled
by the air quality measured by a CO2sensor.
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.
Free cooling
When this function has been activated, it 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.
Free heating
If the outdoor temperature is higher than the indoor temperature and there is a heating demand, the
recovery damper will not open for recovery but instead open fully for outdoor air. This may occur
during low night-time outdoor temperatures, when the room has been cooled considerably and the
outside heat is rising faster than indoors. This function is activated at the same time as “Free
cooling”.
Enthalpy control
Measures and compares the energy content (enthalpy) of the outdoor air and the extract air
(temperature and air humidity). When this function is active, the mixing damper signal will be
overridden to recirculation if the enthalpy is higher outdoors than indoors.
Pretreatment
Damper and pump control for preheating or precooling of the outdoor air via an underground intake
channel.
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.
Recirculation control
Recirculation of air using a supply air fan and (optionally) extract air fan and a recirculation damper
with or without temperature control. Used as a recovery function or during heating with support
control during the night. Recirculation control is available as an analogue or a digital function.
Step controllers Heating/Cooling
As an alternative to the analogue control of ”Actuator heating Y1” or ”Actuator cooling Y3” step
controllers can be used for controlling heating or cooling in steps using digital control.
Change-over
In 2-pipe systems where a combination heater/cooler is operating together with a heat pump,
Change-over is a function that enables using the same pipe for both heating and cooling, depending
on which is currently required. It uses the output Y1 Heating/Y3 Cooling.