Regin Corrigo User manual

Corrigo user guide

Ventilation application



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guide, revision F

About this user guide

This user guide covers all the models in the Corrigo series used with the ventilation

application.

The document only covers functions which are available to users with Operator access and

lower.

Revision F, November 2014

Software revision: 3.4

More information

More information about Corrigo can be found in:

•Manual Corrigo Ventilation – Complete manual for configuration and maintenance

of Corrigo with ventilation application, available in Swedish, English, German and

French.

•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.

•Editable PDF files for Corrigo

•CE - Declaration of conformity, Corrigo

•Environmental declaration – Product content declaration and information about

environmental sustainability in its development and manufacturing process.

The information is available for download from Regin's website, www.regincontrols.com.

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About Corrigo

Corrigo is a series of pre-programmed, configurable controllers for different applications.

The Corrigo series comprises three model sizes: 8, 15 or 28 in-/outputs.

The controllers are available with or without a front panel display and buttons. For units

without a display and buttons, a separate, cable-connected terminal (E3-DSP) with display

and buttons is available.

All normal handling can be carried out using the display and buttons or by using E tool©, a

software tool that runs on a computer connected to the controller with an E-CABLE model

communication cable or a crossover network cable.

Ventilation application, overview of functions

The controller comes loaded with programs for control of a ventilation unit. 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

input and output functions can be bound to this controller. Certain functions are necessary,

while others can be considered optional. This flexibility means that what is shown in the

display may differ from one unit to another, depending on which functions have been

selected.

Functional choices are not made in the operator level, but in the Admin access level by

educated personnel with specialised knowledge. The same applies to other configuration.

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.

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•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 for heating, exchanger and cooling.

•Recirculation dampers.

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

Either humidification or dehumidification, or both humidification and dehumidification, can

be used.

Timer control

For starting and stopping the unit. Up to 5 timer outputs for control of external functions

such as lighting, door locks etc.

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 by using cool outdoor air, thereby reducing cooling needs 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”.

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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 outdoor enthalpy is higher 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.

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guide, revision F

Display, buttons and LEDs

This section is applicable to Corrigo units with display and buttons but also to the hand

terminal E3-DSP. For third generation controllers, it is also possible to connect an external

display to units that are equipped with a display and buttons.

Display

The display has 4 rows of 20 characters. It has

background illumination. 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.

Buttons and LEDs

ARROW UP:

Move up a row in the menu.

(Increase parameter value)

ALARM:

Press to view the alarm list.

ARROW DOWN:

Move down a row in the menu.

(Decrease parameter value)

CLEAR:

Reset/Abort a parameter change unless

OK has already been pressed.

ARROW RIGHT:

Move to a lower menu level.

(Move the cursor to the right in

the parameter)

ALARM LED:

Red, flashing light when there is an

unacknowledged alarm. Non-flashing

light when there is an acknowledged

alarm which has not been reset.

ARROW LEFT:

Move to a higher menu level.

(Move the cursor to the left in

the parameter)



WRITE LED:

Some menus contain settable values.

This is indicated by the yellow LED

flashing. The value can be changed by

pressing OK.

OK:

Open/Activate a selected

menu/setting.

(Confirm a parameter value)

Regulator vent. sys

2014-11-20 13:30

System: Running

Sp: 18.0 Act: 18.2°C

E3-DSP

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guide, revision F

The menu system

Navigating the menus

The choice of access level/user access determines which menus are shown.

The display to the left is normally shown at start-up

and is located at the basic level of the menu tree. The

appearance of the start display may vary since there are

5 types to choose from during configuration. The text

in the first row can also be changed using E tool©.

Sp and Av are setpoint and actual value for the supply air controller. This also applies when

using cascaded room temperature or extract air temperature control.

Actual value = The current measured temperature.

Setpoint value = The desired configured temperature.

Pressing ARROW DOWN will move you through the menu choices at this, the lowest level.

ARROW UP will move you back through the choices.

Which menus are shown depends on which access level you are using (see the section

Access rights for more information about logging on to higher levels).

The basic access level, the level normally active when you have not logged on, only shows a

limited number of menus and submenus:

Running mode

Here, you can view and set the unit’s running mode, as well as view selected control

functions and alarm events.

Temperature, Air control and Humidity control

Here, relevant values and setpoint values are displayed. Setpoints can only be changed if you

have Operator access or higher.

Time settings

Here, the time, date and set running times are shown. Values can only be changed if you

have Operator access or higher.

Access rights

Here, you can log on to a higher level, log off to the basic level and change the password.

A user with Normal access, the basic level, can view a

limited selection of menus. The unit’s running mode can

be changed and alarms acknowledged.

If you have Operator access, you can access more

information and change other operation parameters like

setpoints and time functions.

To get to the next menu level, use ARROW UP and ARROW DOWN to place the display

marker opposite the menu you wish to access and press ARROW RIGHT. If you have

sufficient log on privileges the display will change to the menu you have chosen.

At each level there may be several new menus through which you may move using the

ARROW UP and ARROW DOWN buttons.

Regulator vent. sys

2014-11-20 13:30

System: Running

Sp: 18.0 Act: 18.2°C

Running mode

Temperature

Air control

Humidity control

Time settings

Configuration

Access rights

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visas här.

There are sometimes 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 ARROW RIGHT

again.

To go to a previous menu level, press ARROW 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 a higher user access than you

have to change the parameter, a log on menu will be displayed, see below. Otherwise, a

cursor will appear at the first settable value. If you wish to change the value, do so by

pressing the ARROW UP and ARROW DOWN buttons.

In numbers containing several digits you can move between the digits using the ARROW

LEFT/RIGHT buttons.

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.

Collected here are a number of menus showing running mode, selected functions, alarm

events and status of inputs and outputs.

Running mode

Running mode unit

The unit’s running mode can be changed without logging on.

The running mode can be set to Auto, Off, Manual reduced run or Manual normal run.

The Auto mode should normally be used.

Off can be used to stop the unit for service and similar. Manual normal run or Manual

reduced run will start the unit even if the timer says that the running mode should be “Off”.

If the running mode is set to Off, Manual normal run or Manual reduced run, a C alarm

is activated: Running mode Manual. The alarm automatically resets when the running mode

is set to Auto again.

Running mode

Selected functions

Alarm events

Input/Output

Running mode

Auto

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guide, revision F

Shows the accumulated running times for the fans.

Selected functions

In these menus, you can see how some of the most

important functions have been configured. Changes

cannot be made.

Heater, exchanger and cooling type.

If one of the functions is not used, it will be shown as

”Not used”.

This function is used during the summer to cool the

building night-time using cool outdoor air, thereby

reducing the need for cooling during the day and saving

energy.

Support control is used for adjusting the room

temperature outside of the normal running time. If there

is a heating or cooling demand in the room, the unit will

start and the temperature will be adjusted.

The fire function determines the settings for the fire

dampers and the unit’s running mode when a fire alarm

is activated.

Frost protection is normally always used in water

heating systems. The cooling recovery function starts the

heat exchanger in order to return cooling from the

extract air when the extract air is colder than the outdoor

air and cooling is required.

An analogue input can be configured for an external

setpoint device e.g. TG-R4/PT1000.

Running time

SAF: 14.6 h

EAF: 14.4 h

Control function

Supply air control

Fan control

Pressure

Heating: Water

Exchanger: Plate exc

Cooling: Water

Free cool active: No

Support control

active: Yes

CO2/VOC active

If timer on

Fire damper function

Not active

Operation when alarm

Stopped

Frost protection

Active

Cooling recovery

Not active

External setpoint

Not active

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