W E TAK E B U I L D I N G
AU TO M AT I O N PER SO N A L LY
MANUAL
E XIGO 4.1
© Copyright AB Regin, Sweden, 2017
THANK YOU FOR CHOOSING REGIN!
Ever since Regin was established in 1947, we have developed and marketed products and
systems that create good levels of indoor comfort. Today, we are an important player with one
of the market's broadest ranges for building automation.
Our goal is to make real estates in the world more energy efficient. Regin is an international
group and our products sells in over 90 countries. Thanks to our global presence with strong
local representation, we are well aware of the requirements of the market, as well as of how our
products and systems function under the most variable conditions. Every year, Regin makes
substantial investments in the development of our systems and HVAC-products.
DISCLAIMER
The information in this manual has been carefully checked and is believed to be correct. Regin
makes no warranties about the contents of this manual and users are requested to report errors
and discrepancies to Regin, so that corrections may be made in future editions. The information
in this document is subject to change without prior notification.
Some product names mentioned in this document are used for identification purposes only and
may be the registered trademarks of their respective companies.
 AB Regin. All rights reserved.
Revision B, 2018-02-02
Software revision: 4.1
TABLE OF CONTENTS
1. INTRODUCTION ......................................................................................................7
1.1 About this manual ................................................................................................................. 7
1.2 More information .................................................................................................................. 7
2. INFORMATION FOR THE END USER........................................................................8
2.1 Display, LED:s and buttons..................................................................................................... 8
2.1.1 Display ........................................................................................................................ 8
2.1.2 LEDs ............................................................................................................................ 8
2.1.3 Summary of the function of the buttons ................................................................... 9
2.2 Navigating the menus .......................................................................................................... 10
2.3 Changing values ................................................................................................................... 10
2.3.1 Editing an existing value ........................................................................................... 10
2.3.2 Enter a completely new value .................................................................................. 11
2.3.3 Confirm the change .................................................................................................. 11
2.3.4 Undo an initiAted change ......................................................................................... 11
2.4 Logging on and off ............................................................................................................... 11
2.4.1 Log on ....................................................................................................................... 12
2.4.2 Log off....................................................................................................................... 12
2.4.3 Change password ..................................................................................................... 12
2.4.4 Automatic logoff....................................................................................................... 13
2.5 Menu structure .................................................................................................................... 13
2.5.1 Actual ....................................................................................................................... 14
2.5.2 Setpoint .................................................................................................................... 14
2.5.3 Temp control ............................................................................................................ 19
2.5.4 Manual/Auto ............................................................................................................ 19
2.5.5 Status........................................................................................................................ 20
2.5.6 Mode switch ............................................................................................................. 20
2.5.7 Time settings ............................................................................................................ 20
2.5.8 Inputs/outputs ......................................................................................................... 22
2.6 Alarm handling..................................................................................................................... 23
2.6.1 Alarm priorities......................................................................................................... 23
2.6.2 Inspect alarms .......................................................................................................... 23
2.6.3 Acknowledge, block and unblock alarms ................................................................. 23
3. INFORMATION FOR THE SPECIALIST ....................................................................25
3.1 Function overview ............................................................................................................... 25
3.1.1 Configuration menu ................................................................................................. 26
3.2 Heating system (HS1-HS4) ................................................................................................... 27
3.2.1 Inputs and outputs ................................................................................................... 28
3.2.2 Setpoints .................................................................................................................. 29
3.2.3 Control curves / setpoint.......................................................................................... 30
3.2.4 General settings / configuration .............................................................................. 33
3.2.5 Temperature control ................................................................................................ 35
3.2.6 Frost protection........................................................................................................ 35
3.2.7 Shutdown/Pumpstop ............................................................................................... 36
3.2.8 Optimizer / Boost ..................................................................................................... 36
3.2.9 Delayed outdoor / room temperature ..................................................................... 37
3.2.10 Remote control unit ............................................................................................... 38
3.2.11 Support operation .................................................................................................. 38
3.2.12 Flash adaption ........................................................................................................ 39
3.2.13 Wind compensation ............................................................................................... 39
3.2.14 Room compensation .............................................................................................. 39
3.2.15 Temperature limitation .......................................................................................... 40
3.2.16 Power limitation ..................................................................................................... 42
3.2.17 Dew point / Dehumidification ................................................................................ 42
3.2.18 Universal limitation ................................................................................................ 44
3.2.19 Bypass..................................................................................................................... 45
3.2.20 Screed drying .......................................................................................................... 45
3.2.21 Actuator exercise ................................................................................................... 46
3.2.22 Status...................................................................................................................... 47
3.2.23 Alarms .................................................................................................................... 48
3.2.24 Manual mode ......................................................................................................... 48
3.3 Domestic hot water (HW1, HW2) ........................................................................................ 49
3.3.1 Inputs and outputs ................................................................................................... 51
3.3.2 Setpoints .................................................................................................................. 52
3.3.3 General settings / configuration .............................................................................. 53
3.3.4 Frost protection........................................................................................................ 54
3.3.5 Thermal disinfection................................................................................................. 55
3.3.6 Power limitation ....................................................................................................... 56
3.3.7 Return temperature limitation ................................................................................. 57
3.3.8 Tank control ............................................................................................................. 57
3.3.9 Supply control .......................................................................................................... 58
3.3.10 Circulation .............................................................................................................. 59
3.3.11 Switch off delay ...................................................................................................... 60
3.3.12 Actuator exercise ................................................................................................... 60
3.3.13 Status...................................................................................................................... 61
3.3.14 Alarms .................................................................................................................... 61
3.3.15 Manual mode ......................................................................................................... 61
3.4 Buffer tank (HP1) ................................................................................................................. 62
3.4.1 Inputs and outputs ................................................................................................... 62
3.4.2 Setpoints .................................................................................................................. 63
3.4.3 Buffer tank configuration ......................................................................................... 64
3.4.4 Boost ........................................................................................................................ 64
3.4.5 Actuator exercise ..................................................................................................... 65
3.4.6 Status........................................................................................................................ 65
3.4.7 Alarms ...................................................................................................................... 66
3.4.8 Manual mode ........................................................................................................... 66
3.5 District heating system (DHS1) ............................................................................................ 66
3.5.1 Inputs and outputs ................................................................................................... 66
3.5.2 Setpoints .................................................................................................................. 67
3.5.3 General settings / configuration .............................................................................. 67
3.5.4 Boost ........................................................................................................................ 68
3.5.5 Setpoint limitation.................................................................................................... 68
3.5.6 Supply control .......................................................................................................... 69
3.5.7 Supply limitation ...................................................................................................... 69
3.5.8 Power limitation ....................................................................................................... 70
3.5.9 Frost limitation ......................................................................................................... 70
3.5.10 Return temperature limitation ............................................................................... 70
3.5.11 Pump ...................................................................................................................... 71
3.5.12 Actuator exercise ................................................................................................... 72
3.5.13 Status...................................................................................................................... 72
3.5.14 Alarms .................................................................................................................... 72
3.5.15 Manual mode ......................................................................................................... 73
3.6 Solar ..................................................................................................................................... 73
3.6.1 Inputs and outputs ................................................................................................... 74
3.6.2 General settings / configuration .............................................................................. 74
3.6.3 Actuator exercise ..................................................................................................... 75
3.6.4 Status........................................................................................................................ 76
3.6.5 Alarms ...................................................................................................................... 76
3.6.6 Manual mode ........................................................................................................... 76
3.7 Boiler control (HB1-HB4) ..................................................................................................... 77
3.7.1 Inputs and outputs ................................................................................................... 77
3.7.2 Setpoint .................................................................................................................... 79
3.7.3 Type of boiler control ............................................................................................... 80
3.7.4 Boiler Settings .......................................................................................................... 82
3.7.5 Starting order ........................................................................................................... 84
3.7.6 Boiler exercise .......................................................................................................... 85
3.7.7 Boiler return temperature........................................................................................ 86
3.7.8 Boiler pump .............................................................................................................. 88
3.7.9 Transport pump........................................................................................................ 89
3.7.10 Manual mode ......................................................................................................... 90
3.8 Pump control ....................................................................................................................... 91
3.8.1 Inputs and outputs ................................................................................................... 91
3.8.2 Parameters ............................................................................................................... 92
3.9 General functions ................................................................................................................ 93
3.9.1 Building inertia ......................................................................................................... 93
3.9.2 Split valve ................................................................................................................. 93
3.10 Priority ............................................................................................................................... 94
3.10.1 Priority function ..................................................................................................... 94
3.11 Energy/Cold water monitoring .......................................................................................... 95
3.11.1 Inputs and outputs ................................................................................................. 95
3.11.2 Pulse meter ............................................................................................................ 96
3.11.3 M-Bus meter .......................................................................................................... 98
3.12 Pressure Control .............................................................................................................. 100
3.12.1 Inputs and outputs ............................................................................................... 100
3.12.2 Setpoint ................................................................................................................ 100
3.12.3 Control pressure ................................................................................................... 100
3.13 Inputs/Outputs ................................................................................................................ 101
3.13.1 General ................................................................................................................. 101
3.14 Alarm settings .................................................................................................................. 102
3.14.1 Alarm limits .......................................................................................................... 102
3.14.2 Alarm delays ......................................................................................................... 102
3.15 Alarm configuration ......................................................................................................... 103
3.15.1 Priority .................................................................................................................. 103
3.15.2 Alarm text ............................................................................................................. 103
3.16 Communication ............................................................................................................... 103
3.16.1 Serial port 1 and 2 ................................................................................................ 103
3.16.2 TCP/IP ................................................................................................................... 106
3.16.3 External display .................................................................................................... 108
3.16.4 M-Bus ports .......................................................................................................... 108
3.16.5 Expansion units .................................................................................................... 109
3.17 System ............................................................................................................................. 109
3.17.1 Change language .................................................................................................. 109
3.17.2 Choose start screen .............................................................................................. 109
3.17.3 Automatic summer/winter time adjustment ....................................................... 111
3.17.4 Address ................................................................................................................. 111
3.17.5 Address for remote communication .................................................................... 111
3.17.6 Automatic logoff................................................................................................... 111
3.18 Changing the battery ....................................................................................................... 112
3.18.1 24 V models .......................................................................................................... 112
3.18.2 230 V models ........................................................................................................ 112
4. INFORMATION FOR THE INSTALLER ...................................................................113
4.1 Installation ......................................................................................................................... 113
4.1.1 Terminals ................................................................................................................ 113
4.1.2 Wiring ..................................................................................................................... 114
4.2 Commissioning................................................................................................................... 119
4.2.1 Configuration using Exigo tool ............................................................................... 119
4.2.2 Configuration using the built-in display or an external display .............................. 119
APPENDIX A TECHNICAL DATA ...............................................................................121
Exigo Ardo ................................................................................................................................ 121
Communication Ports...................................................................................................... 121
Inputs & Outputs ............................................................................................................. 121
Exigo Vido ................................................................................................................................ 122
Communication Ports...................................................................................................... 122
Inputs & OUTPUTS .......................................................................................................... 122
APPENDIX B MODEL OVERVIEW ............................................................................123
APPENDIX C INPUT AND OUTPUT LISTS .................................................................124
APPENDIX D ALARM LIST ........................................................................................131
APPENDIX E TERMINAL LISTS .................................................................................140
1. INTRODUCTION
1.1 ABOUT THIS MANUAL
This manual covers all the models in the Exigo series used with the heating application. This
revision covers software revisions from 4.1.
The manual has the following main chapters:
 Information for the end user
All the information needed by the end user. How to handle the controller, including
how to navigate in the menus, LED:s and indications, how to change setpoints and
handle alarms etc.
 Information for the specialist
A comprehensive guide to all the functions of the controller.
 Information for the installer
Everything related to the installation of the hardware, such as wiring examples, and
commissioning.
 Appendix
Technical data, model overview, input and output lists, alarm list, terminal lists.
Special text formats used in the manual:
This box and symbol is used to show useful tips and tricks.
This box and symbol is used to show warnings.
This box is used to show formulas and mathematical calculations
This box is used to
represent the display
window on the
controller
1.2 MORE INFORMATION
More information about the product can be found in:
 Product sheets for Exigo Ardo and Exigo Vido
 Instructions for Exigo Ardo and Exigo Vido
 Variable lists
 Manual for Exigo tool
All the above documents are available for download from Regin’s website,
http:\\www.regincontrols.com.
Exigo 4.1 manual, revision A
1 Introduction
7
2. INFORMATION FOR THE END USER
2.1 DISPLAY, LED:S AND BUTTONS
The controllers are available in two different hardware platforms:
 The 230 V Exigo Vido which features 5 buttons.
 The 24 V Exigo Ardo which features 7 buttons.
2.1.1 DISPLAY
The display has background illumination and has 4 rows of 20 characters each. 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.
2.1.2 LEDS
On the Exigo Ardo models, there are two LEDs on the front, marked with the symbols  and
. For controllers with display, the alarm indication and change mode LEDs are located in the
keypad area.
Symbol


8
Colour
Function
Flashing red
There are one or more unacknowledged alarms.
Fixed red
There are one or more remaining acknowledged alarms.
Flashing yellow
You are in a dialog box where it is possible to switch to change mode. A
quick blinking (2 times/s) indicates that the parameter can be changed
using the current access level. A slower blinking (1 time/s) indicates that
a higher access level is required to change the parameter.
Fixed yellow
You are in change mode.
2 Information for the end user
Exigo 4.1 manual, revision A
Status indication
Status indication LEDs can be found in the upper left corner of the Exigo Ardo models.
Designation
Colour
Description
P1 RxTx
Yellow/Green
Port 1, receiving/transmitting
P2 RxTx
Yellow/Green
Port 2, receiving/transmitting
Green: Connected to other network equipment
TCP/IP (…W models)
Blinking green: Network traffic
Yellow/Green
Blinking yellow: For identifying (for example when marking the unit
in Exigo tool)
P/B (Power / Battery)
Green/Red
Power on / Battery error
2.1.3 SUMMARY OF THE FUNCTION OF THE BUTTONS
Exigo Ardo
(7 buttons)
Exigo Vido
(5 buttons)
Functions
[] [] [] []
[] [] [] []

Navigation buttons:
 Navigate upwards.
 Navigate downwards.
 Navigate to the right.
 Navigate to the left.

Function in Alarm
Mode
 Navigate up in the
alarm stack.
 Navigate down in the
alarm stack.
 Exit alarm display
mode.
In change mode:
 Move cursor to the right.
 Move cursor to the left.
 Increase the value by 1.
 Decrease the value by 1.
 and  Scroll among the texts
when there are several
alternatives.
[OK]
[OK]

Enter change mode.

Confirm a new value in change
mode. An input must be confirmed
with this button in order to change
the value in the controller.

A menu with all
available
maneuvers that are
available for the
current alarm is
displayed.

Closes the menu
containing available
alarm maneuvers
without changing
the state of the
alarm point.

Browse among
alarms in alarm
display mode.
When a value has been confirmed,
the cursor will move to the next
maneuverable value in the current
box.
[C]
[C]
[ALARM]

Enter change mode and erase the
value in the display.

Erase the sign at the cursor.

Press both
buttons
simultaneously
When the current value is
completely empty, the maneuver
mode is cancelled and the cursor
will move to the next value that will
also be erased in the window.

Undo (erase) the input.
[ALARM]

Enter alarm display mode.
Press both
buttons
simultaneously
Exigo 4.1 manual, revision A
2 Information for the end user
9
2.2 NAVIGATING THE MENUS
The appearance of the start display may vary since there are several different start displays to
choose from during configuration.
Heating controller
2017-01-08 14:29
HS1
Sp: 52.0 Act: 52.5°C
Sp and Act stand for Setpoint and Actual value. In the example above they are the values for
HS1.
Actual value = the current measured temperature
Setpoint = the desired configured temperature
You can navigate through the menu choices at this level by pressing the [] and [] buttons.
Which menu items are shown depends on the access level of the user and the configured
inputs/outputs and functions.
Below, all possible menu entries are shown.
HS1
HS2
HS3
HS4
HW1
HW2
Buffer
Boiler
DHS
Solar
Cooling Unit
Time settings
Pressure control
Energy/Cold water
Alarm events
Inputs/Outputs
Configuration
Access rights
To enter a higher menu level, press the [] button when the display marker is located at the
menu item you wish to enter. At each level there may be several new menus through which
you may browse using the [] and [] buttons.
When there are further submenus linked to a menu or menu item, it is indicated by an arrow
symbol at the right-hand edge of the display. To choose one, press the [] button again. To
return to a lower menu level, press the [] button.
2.3 CHANGING VALUES
When you are at a position where it is possible to change one or more values, and your
authority is high enough, you can edit the existing value, or enter a completely new one. After
changing the value, you confirm the input with the [OK] button, or undo the change by
pressing the [C] / [] buttons for a short while until the original value reappears in the
window and change mode is exited. These maneuvers are described in detail in the following
sections.
2.3.1 EDITING AN EXISTING VALUE
1. Press the [OK] button to go to change mode. A flashing cursor appears. If there are
multiple editable values in one menu, press the [OK] button until the value you want to
change flashes.
2. Move the cursor to the right and to the left with the navigation buttons [] and [].
3. The value at the cursor can now be changed in the following ways:
 Erase the current digit or character with the [C] / [] buttons.
10
2 Information for the end user
Exigo 4.1 manual, revision A
 Use the [] and [] buttons to increase or decrease the value at the cursor.
Maneuverable texts can also be changed with this method.
 If the character at the cursor is a decimal point, you cannot browse with the [] and
[] buttons. You can however erase the decimal point with the [C] / [] buttons.
 If the cursor is placed to the right of the value, i.e. the character at the cursor is a
space, you can add a decimal point with the [] button, or the figure 0 with the []
button.
 If you require a negative number, move the cursor to the leftmost position and press
the [] button to get a minus sign. Then edit the following digits to the required
value.
 Scroll up [] and down [] to browse through texts when there are several texts to
choose from instead of numerical values.
2.3.2 ENTER A COMPLETELY NEW VALUE
 Press the [C] / [] buttons to go to change mode. The value is erased in the window, and you have
to enter a completely new value.
 If you require a negative number, move the cursor to the leftmost position and press the [] button
to get a minus sign. Then edit the following digits to the required value.
 Press [] to begin the input with the figure 0, then browse to the required figure or character with
[] and [].
 Press [] to get a decimal point. When the cursor is placed at a decimal point, you cannot browse
with the [] and [] buttons.
2.3.3 CONFIRM THE CHANGE
Press [OK] to confirm the change when the required value has been entered. Then the value
you see in the window will be updated in the installation.
After the value has been confirmed, the cursor will move to the next maneuverable value in the
current menu.
As long as you don’t confirm a change with the [OK] button, no change will be made
in the installation.
2.3.4 UNDO AN INITIATED CHANGE
As long as you don’t confirm a value with the [OK] button, you can undo an initiated
change by pressing the [C] / [] buttons for a short while until the original value
reappears in the window and change mode is exited.
2.4 LOGGING ON AND OFF
The controller has four different access levels. The choice of access level determines which
menus are shown, as well as which parameters can be changed in the displayed menus.
 Normal level does not require logging on, and only permits changes in running mode and gives readonly access to a limited number of menus.
 Operator level gives the same access as Normal level, and in addition, access to change setpoints.
 Service level gives the same access as Operator level, and in addition, access to change controller
settings and manual mode.
Exigo 4.1 manual, revision A
2 Information for the end user
11
 Admin level gives full read/write access to all settings and parameters in all menus.
2.4.1 LOG ON
1. Browse to Access Rights in the main menu and press []
Log on
Log off
Change password
2. Select Log on and press []
Log on
Enter password:****
Actual level:
None
3. Press [OK] to make a cursor marker appear at the first digit position.
4. Enter the password (4-digit code) by pressing [] until the correct digit is displayed. Press
the [] to move to the next position. Repeat the procedure until all four digits are
displayed, and press [OK] to confirm.
2.4.2 LOG OFF
1. Go to Access Rights in the main menu and press []
2. Select Log off and press []
Log off?
No
Actual level:
Admin
3. Select Yes and press [OK]
2.4.3 CHANGE PASSWORD
1. Go to Access Rights in the main menu and press []
2. Select Change password and press []
Change password for
level:Operator
New password: ****
3. Select Yes and press [OK]
4. Press [OK] to enter change mode.
5. Use the [] and [] buttons to browse and select the access level to change password for,
press [OK] to confirm.
6. Enter the new password (4-digit code) by pressing [] until the correct digit is displayed.
Press the [] to move to the next position. Repeat the procedure until all four digits are
displayed, and press [OK] to confirm.
The following passwords are the default for the different access levels:
12
Admin
1111
Service
2222
Operator
3333
Normal
5555
2 Information for the end user
Exigo 4.1 manual, revision A
You can only change the password for access 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 Normal
password since access to that level is granted automatically to all users.
Do not set the password for two different access levels to the same value, as this
would prevent access to the higher of these two access levels. This is especially
important for the Admin level.
If the password for the Admin level has been changed and then lost, a temporary
password can be obtained from Regin. This code is date dependent and valid for one
day only.
2.4.4 AUTOMATIC LOGOFF
When logged in as Operator, Service or Admin, the user will automatically be logged off to
Normal after a settable time of inactivity (the default is 60 seconds). It is possible to set the
controller to disable the automatic logoff.
Change password to remove automatic logoff
If you want to remove the automatic logoff, change the password of the desired level to 0000.
This can be very useful in certain cases if the unit is intended to be used by trained personnel
or, for instance, during commissioning.
Removing the automatic logoff should be done with consideration, since no alarm is
continuously given that a certain level has been activated.
2.5 MENU STRUCTURE
Only the configured circuits are included in the main menu.
HS1
HS2
HS3
HS4
HW1
HW2
Buffer
Boiler
DHS
Solar
Cooling Unit
Time settings
Pressure control
Energy/Cold water
Alarm events
Inputs/Outputs
Configuration
Access rights
 Heating system (HS1 – HS4)
 Domestic hot water (HW1 – HW2)
 Buffer
 Boiler
 District heating system (DHS)
Exigo 4.1 manual, revision A
2 Information for the end user
13
 Solar
Each of these circuits has up to five submenus:
Actual
Setpoint
Temp control
Manual/Auto
Status
 Actual
 Setpoint
 Temp control
 Manual/Auto
 Status
2.5.1 ACTUAL
In this submenu, you can read all the actual values of the configured inputs of the circuit. For
more information, see Chapter 3, Information for the Specialist.
2.5.2 SETPOINT
In this submenu, you can read and set all the setpoints for the selected circuit. You need
Operator access level or higher to be able to change setpoints.
Heating system (HS1-HS4)
There are three different setpoint types for heating systems. Each heating system is configured
as one of these setpoint types:
 Constant setpoint
 8-point curve
 DIN-curve with slope and exponent (only for heating mode)
Only the parameters relevant for the configured setpoint type are visible in the menu.
Constant setpoint
If the setpoint type is set to constant, the setpoint is the same regardless of the outdoor
temperature.
Heating Constant
SetP: 45.0 °C
14
2 Information for the end user
Exigo 4.1 manual, revision A
8-point curve
Supply temperature
If the setpoint type is set to 8-point curve, the setpoint depends on the outdoor temperature by
means of a control curve. At 8 settable outdoor temperatures, a corresponding supply
temperature is entered.
80
70
60
50
40
30
20
10
0
-25
-20
-15
-10
-5
0
5
10
15
20
25
Outdoor temperature
Heating Outd Comp
-20 °C = 67 °C
-15 °C = 63 °C
-10 °C = 59 °C
Heating Outd Comp
-5 °C = 55 °C
0 °C = 53 °C
5 °C = 43 °C
Heating Outd Comp
10 °C = 35 °C
15 °C = 25 °C
Supply temperature
A displacement can be added to the 8-point control curve to move the entire curve up or down.
80
70
60
50
40
30
20
10
0
-25
-20
-15
-10
-5
0
5
10
15
20
25
Outdoor temperature
Heating Manual
Displacement
0 °C
If the setpoint type is set to 8-point curve, an ECO/Comfort function can be used to lower the
temperature during nights/holidays (or increase the temperature in cooling mode). Each
heating system has an individual time schedule and when the ECO/Comfort function is
activated, you will get a reduced setpoint when the time channel is OFF. For more information,
see section Time settings below.
Exigo 4.1 manual, revision A
2 Information for the end user
15
In heating mode, the setpoint is decreased by the given value multiplied by 3. In cooling mode,
the setpoint is increased by the given value. The room degrees can be defined separately for
night and holiday.
Eco/Comf Mode
Off
5.0 °C Room degr
5.0 °C Room degr Hol.
DIN-curve with slope and exponent
If the setpoint type is set to DIN-curve, the setpoint depends on the outdoor temperature by
means of a control curve with settable slope and an exponent which bends the curve.
DIN-curve slope
DIN-curve exponent
Some commonly used exponents are:
 1.10 underfloor heating
 1.20 radiators
 1.33 DIN-radiators
 1.25…1.40 Plate radiators
 1.40…1.60 Convectors
Heating Outd Comp
Slope: 1.4
Exponent: 1.30
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2 Information for the end user
Exigo 4.1 manual, revision A
If the setpoint type is a DIN-curve or if a room sensor is configured, room setpoints can be set
for the four settable Comfort times (SP-CT1…SP-CT4) and are valid for both types of heating
curves. The night setpoint and the holiday setpoint are calculated as a difference (Diff-NCT or
Diff-Hol) to the setpoint of the following comfort time or of comfort time 1 (during holiday or
if the time to the next comfort time > 24h). The difference will decrease the setpoint in
heating mode and increase it in cooling mode. Both differences are only valid if the DIN-curve
is selected.
If the DIN-curve is selected, the setpoints will move the basepoint of the curve, in the same
way as a parallel adjustment. If the 8-point-curve is selected and the timer is inside a comfort
time, the setpoint will be adjusted by the difference between the setpoint and 21 °C multiplied
by 3 for heating, and multiplied by 1 for cooling.
For more information see section Time settings.
Room
SP-CT1: 20.0 °C
SP-CT2: 20.0 °C
SP-CT3: 20.0 °C
Room
SP-CT4: 20.0 °C
Diff-NCT: 15.0 °C
Diff-Hol: 10.0
Cooling mode
The same setpoints are available for cooling mode as for heating mode except that curve with
slope and exponent is not available.
Cooling
20 °C =
22 °C =
24 °C =
Outd Comp
15 °C
14 °C
13 °C
Cooling
26 °C =
28 °C =
30 °C =
Outd Comp
12 °C
12 °C
11 °C
Cooling Outd Comp
32 °C = 10 °C
34 °C = 9 °C
Cooling Constant
SetP:13 °C
Cooling Manual
Displacement
0 °C
Exigo 4.1 manual, revision A
2 Information for the end user
17
Dehumidification
The dehumidification function can use either a constant setpoint or a calculated setpoint. If
constant setpoint is used, it can be set in the Setpoint menu. For more information, see Chapter
3, Information for the Specialist.
Dehumidification
SetP: 55 %RH
Domestic hot water (HW1-HW2)
Each domestic hot water system has setpoints for the four settable Comfort times (SP-CT1…SPCT4), a night setpoint (SP-NCT) and a holiday setpoint (SP-Hol).
Hot Water SetP
SP-CT1: 50 °C
SP-CT2: 50 °C
SP-CT3: 50 °C
Hot Water SetP
SP-CT1: 50 °C
SP-NCT:
2 °C
SP-Hol:
2 °C
Buffer
The program can control buffer tanks with one zone. The Setpoint menu displays the currently
calculated buffer temperature setpoint Setpoint Act based on the demand from the internal
heating circuits, the domestic hot water circuits and external heat consumers or on the
Constant Setpoint depending on the settings. A Hysteresis can also be set in order to overheat
the buffer tank for switching off the heat producers.
Setpoint
Act: 12.0 °C
Hysteresis: 5.0 °C
Constant Setpoint
SetP: 50.0 °C
Boiler (HB1-HB4)
The boiler control setpoint type can be configured to one of the following alternatives, and only
the parameters relevant for the configured setpoint type are visible in the menu.
Outd Temp: 17.0 °C
HB
Act:
5.0 °C
SetP->
SetP: 20.0 °C
 Constant setpoint: A fixed settable value, SetP.
HB Setpoint
Setp: 36.0 °C
 Circuit-dependent setpoint: Can be set to any of the following options:
1. HS-dependent
2. HW-dependent
3. HP1-dependent
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4. HS- and HW-dependent
5. HS- and HP1-dependent
6. HW- and HP1-dependent
7. HS-, HW- and HP1-dependent
When a circuit-dependent setpoint has been configured, the boiler control setpoint is
dependent on the setpoints of other circuits. The circuit whose setpoint is currently
the highest will, together with an added offset, Man Paral Dis, (pre-set to 5 degrees),
constitute the boiler control setpoint.
Offset HS Setpoint
5.0 °C
HB Act: 48.6 °C
HB Setp: 35.3 °C
 Outdoor compensated setpoint = the setpoint varies with the outdoor temperature.
At 8 settable outdoor temperatures, a corresponding supply temperature is set.
Outd Comp Setp HB
-20.0 °C = 67 °C
-15.0 °C = 63 °C
-10.0 °C = 59 °C
Outd Comp Setp HB
-5.0 °C = 55 °C
-0.0 °C = 53 °C
5.0 °C = 43 °C
Outd Comp Setp HB
10.0 °C = 35 °C
15.0 °C = 25 °C
Man Paral Dis 0°C
Pressure control
This menu shows the setpoint and the actual control pressure value.
Pressure Control
Act: 51 kPa
SetP: 50 kPa
2.5.3 TEMP CONTROL
In this submenu the control parameters can be read and set. It is only visible for access level
Operator and higher, and only maneuvreable for access level Service and higher.
For more information, see Chapter 3, Information for the Specialist.
2.5.4 MANUAL/AUTO
In this submenu, pumps, valves and other functions of the circuit can be set to manual mode. It
is only visible for access level Operator and higher, and only maneuvreable for access level
Service and higher.
For more information, see Chapter 3, Information for the Specialist.
Exigo 4.1 manual, revision A
2 Information for the end user
19
2.5.5 STATUS
In this submenu, the status of the circuit can be read.
Each circuit has a main status that can have the following modes:
Status
HS
HW
DHS
Buffer
Solar
•
•
•
•
•
Not active
Frost
Switch off
•
•
•
•
Circuit is not active and will do nothing.
Reason: Missing sensor or Mode switch = Off
Circuit is in frost-protection because one of the
sensors is lower than the frost limit.
•
•
Description
Frost protection is not working if the status is set to
Not active.
•
•
No control function because there is no demand,
the main switch of the circuit is not active, unit shut
down or switch off by the priority function.
Frost protection is still active.
Support operation
•
•
Normal operation
•
•
Holiday
•
•
Screed drying
•
Circuit is working with reduced setpoint because
eiher the time channel is outside of a comfort time
or reduction by the priority function.
•
•
•
Normal operation, circuit is controlling the demand
or comfort setpoint.
Time channel is in ECO mode during a holiday
period. The holiday setpoint is controlled by the
circuit.
Heating system is working in Screed drying mode.
Each function also has different sub-statuses. For more information, see Chapter 3, Information
for the Specialist.
2.5.6 MODE SWITCH
In addition to the items in the main menu, there is also an extra menu called Mode switch, that
is reached by pressing [] in the main menu. The mode switch changes the operation of the
system.
Domestic hot water system
Buffer / Solar / Boiler /
District heating system
Mode switch position
Heating system
0 – Off
Off-mode. No control function, valves closed, pumps off
1 – Auto
Automatic mode. Control function depending on timer and
settings.
Automatic mode, working
on demand
2 – Summer
No heating, which means
switch off operation if in
heating mode, and automatic
operation in cooling mode.
Same as automatic mode
3 – Holiday
Holiday operation with setpoint Holiday
Same as automatic mode
4 – Continuous
Normal operation with setpoint CT1
Same as automatic mode
Same as automatic mode
2.5.7 TIME SETTINGS
The controller is equipped with a maximum of 11 week programs (time schedules) and year
programs (holiday schedules). One schedule is assigned to each heating circuit and each
domestic hot water circuit. Additionally, there are five extra schedules that can be used for
multiple purposes, for example to control lighting or door locks etc.
The extra schedules can be assigned to output terminals. These switch On/Off in accordance
with up to four specified comfort times (switched on during the specified comfort times,
switched off in between the comfort times).
The Time settings menu contains the submenus Time/Date, Time schedule and Holiday
schedule.
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Time/Date
This menu displays time, date and weekday, and it permits the setting of time and date.
Time is shown in 24 hour format.
Date is shown in the format YY:MM:DD.
Time schedule
Temperature
In the time schedules, four comfort times are available for each day of the week. Also four
comfort times are available for days that are configured as holidays in the holiday schedule.
During the comfort times the assigned circuit is working with the corresponding setpoint (CTx
setpoint). Outside of a comfort time the Eco setpoint is valid or the night setback will be
activated.
CT3
CT1
CT2
Eco
B1
Eco
E1
Eco
B2
E2=B3
E3
Begin/End
The above figure shows an example of comfort time (CTx) states. As shown, the end of an
comfort time is followed either by a non-operating time (Eco) or by the beginning of a new
comfort time (see E2=B3 in the figure). It is not possible for comfort times to overlap each
other.
Parameters
Name
Unit
Min
Max
Default
Description
Monday Per.1 Start
hh:mm
00:00
24:00
07:00
Start of comfort time 1 Mondays.
Monday Per.1 End
hh:mm
00:00
24:00
16:00
End of comfort time 1 Mondays.
Monday Per.2 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 2 Mondays.
Monday Per.2 End
hh:mm
00:00
24:00
00:00
End of comfort time 2 Mondays.
Monday Per.3 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 3 Mondays.
Monday Per.3 End
hh:mm
00:00
24:00
00:00
End of comfort time 3 Mondays.
Monday Per.4 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 4 Mondays.
Monday Per.4 End
hh:mm
00:00
24:00
00:00
End of comfort time 4 Mondays.
Holiday Per.1 Start
hh:mm
00:00
24:00
07:00
Start of comfort time 1 holidays.
Holiday Per.1 End
hh:mm
00:00
24:00
16:00
End of comfort time 1 holidays.
Holiday Per.2 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 2 holidays.
…
Holiday Per.2 End
hh:mm
00:00
24:00
00:00
End of comfort time 2 holidays.
Holiday Per.3 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 3 holidays.
Holiday Per.3 End
hh:mm
00:00
24:00
00:00
End of comfort time 3 holidays.
Holiday Per.4 Start
hh:mm
00:00
24:00
00:00
Start of comfort time 4 holidays.
Holiday Per.4 End
hh:mm
00:00
24:00
00:00
End of comfort time 4 holidays.
Exigo 4.1 manual, revision A
2 Information for the end user
21
Holiday schedule
The system operator can define specific periods of operation or non-operation throughout the
year. During these defined periods, the settings in the week schedule do not apply. The holiday
schedule provides 10 periods for each timer module. All holiday periods of a time schedule are
working with a special day plan with a maximum of 4 comfort times. During these comfort
times, the assigned circuit is working with the corresponding setpoint (Setpoint CTx). Outside
of a comfort time, Setpoint Holiday is in use or the Night Setback holiday will be activated.
Parameters
Name
Unit
Min
Max
Default
Description
Holiday Per.1 Start
MM:DD
01.01
31.12
00.00
The start date of holiday period 1.
Holiday Per.1 End
MM:DD
01.01
31.12
00.00
The end date of holiday period 1.
Holiday Per.10 Start
MM:DD
01.01
31.12
00.00
The start date of holiday period 10.
Holiday Per.10 End
MM:DD
01.01
31.12
00.00
The end date of holiday period 10.
…
2.5.8 INPUTS/OUTPUTS
This is a read-only menu showing the current values for all inputs and outputs. If correction
factors have been applied to the input values, the corrected values are shown.
AI/UAI
WAI
DI/UDI
AO
DO
Analogue inputs
AI1-2.9
AI2 20.3
AI3 28.2
AI4 19.9
UAI1 1.0
UAI2-3.2
UAI3 22.3
UAI4 14.4
Wireless inputs
WAI1-0.9
WAI2 3.7
WAI3 1.5
WAI4 2.1
WAI5
WAI6
WAI7
WAI8
21.5
22.9
17.3
16.8
Digital inputs
DI1
DI2
DI3
DI4
UDI1
UDI2
UDI3
UDI4
Off
Off
On
Off
DI5
DI6
DI7
DI8
Off
On
On
Off
Off
Off
Off
Off
Analogue outputs
AO1
AO2
AO3
AO4
22
10.0
0.0
5.7
3.8
AO5 2.3
2 Information for the end user
Exigo 4.1 manual, revision A
Digital outputs
DO1
DO2
DO3
DO4
Off
Off
On
Off
DO5 On
DO6 Off
DO7 On
2.6 ALARM HANDLING
If an alarm condition occurs, an alarm is logged in an alarm list. The list shows the type of
alarm, the alarm date and time and the alarm priority (A, B or C alarm).
2.6.1 ALARM PRIORITIES
Alarms can be given different priority levels: A alarm, B alarm, C alarm or not active. There are
three digital outputs that can be used as alarm outputs: Sum alarm, Sum alarm A and Sum
Alarm B/C.
A, B and C alarms all activate the sum alarm output, if it has been configured.
Class A alarms also activate sum alarm A, and class B/C alarms activate sum alarm B/C.
Class C alarms are removed from the alarm list when the alarm input resets even if the alarm
has not been acknowledged.
2.6.2 INSPECT ALARMS
 Press the alarm buttons [ALARM] / [] to display the alarms.
 If there is more than one alarm at the same time, this is indicated by up/down arrow
symbols at the right-hand edge of the display. You can browse among them in two
ways:
1. By using the navigation buttons [] and [].
2. By pressing the alarm buttons [ALARM] / [] several times.
 Press [] to exit alarm handling and return to the previous menu.
2.6.3 ACKNOWLEDGE, BLOCK AND UNBLOCK ALARMS
 Press the [OK] button to get a menu with the available alarm maneuvers for the
currently displayed alarm.
 Select the required alarm maneuver with the buttons [] and [].
 Press the [OK] button to execute the maneuver.
At the left end of the bottom display line the alarm status is shown. For active,
unacknowledged alarms the space is blank. Alarms that have been reset are indicated by the
text Acknowledged. Active or blocked alarms are indicated by the text Acknowledged or
Blocked.
Acknowledged alarms will remain on the alarm list until the alarm input signal resets.
Blocked alarms remain on the alarm list until the alarm has been reset and the block has been
removed. New alarms of the same type will not be activated as long as the block remains.
Blocking alarms can be potentially dangerous. A high log on authority is therefore
required to block alarms.
Exigo 4.1 manual, revision A
2 Information for the end user
23
Alarm events
In the Alarm Events menu, there is an alarm log which contains the 40 latest alarm events. The
latest event is shown at the top of the list. The alarm log is only used to view alarm history,
which may simplify troubleshooting of the installation.
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3. INFORMATION FOR THE SPECIALIST
3.1 FUNCTION OVERVIEW
The temperature controllers are PI-controllers for control of heating, cooling, boilers and PID
for domestic hot water control. A number of different control functions, as well as analogue and
digital inputs and outputs, can be added to these controllers. The user can freely decide which
functions to use. The only restriction is the number of physical inputs and outputs of the
different models.
Among other things, the program includes the following functions:
Heating system
The controller can be equipped with up to 4 heating systems for heating and cooling. The basic
function of the heating systems is outdoor temperature and/or room temperature-dependent
control of the supply or return temperature.
Hot water system
The controller can be configured for one or two domestic hot water systems, HW1 and HW2.
There are six different types of domestic hot water systems available, flow through system as
well as different storage loading systems.
District heating system
The controller can control a District heating circuit. This function permits demand-based
control of a district heating unit with or without a heat exchanger (direct heat supply).
Boiler
For control of 1-4 boilers in sequence, 1-step, 2-step or modulating burners. It is possible to
choose between either a fixed or an outdoor compensated setpoint, or to use the highest
setpoint in any other heating systems that have been configured.
Buffer tank
A buffer tank has many positive effects on a system, including reducing starts and stops from a
boiler. The temperature in the buffer tank is controlled according to the demands of the heating
systems and domestic hot water systems, as well as external demand via 0…10 V.
Solar
The solar system can be used either for heating the domestic hot water storage tank or in order
to heat up the buffer tank. The basic function of the solar circuit is to control the temperature
difference between the collector sensor and the storage sensor.
Time channel
A maximum of 11 time schedules are available. One time schedule is assigned to each heating
system and domestic hot water system. Additionally, there are 5 free time schedules which can
be used for multiple purposes.
Differential pressure control
One constant differential pressure control circuit.
Exigo 4.1 manual, revision A
3 Information for the specialist
25
Priority
The priority function permits defining if and how the HW or HS should have priority over the
other heat consumers, when heat is required. This function is needed when the heat producer is
unable to simultaneously supply heat to all heat consumers.
Monitoring
Monitoring the energy and water consumption via digital pulse input or M-Bus-meter.
3.1.1 CONFIGURATION MENU
The different functions are configured from the Configuration menu, which can be found in the
main menu. To access this menu, you have to be logged in as Admin.
The configuration menu contains the following items:
Alarm settings
Inputs/Outputs
HS
HW
HB
DHS1
Buffer
Solar
General functions
Alarm Config
Communication
System
 Alarm settings: Configuration of alarm limits and delays
 Inputs/Outputs: Configuration of inputs and outputs
 HS: Configuration of heating systems (HS1-4)
 HW: Configuration of domestic hot water systems (HW1, HW2)
 HB: Configuration of boilers
 DHS1: Configuration of district heating system (DHS1)
 Buffer: Configuration of a buffer tank
 Solar: Configuration of a solar circuit
 General functions: Configuration of the Priority function, general heating parameters
that are mutual for all 4 heating systems and configuration of the Energy/Cold water
monitoring function
 Alarm Config: Configuration of the alarm priority for each alarm
 Communication: Configuration of communication ports
 System: Configure language, start screen and other system settings
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Exigo 4.1 manual, revision A
3.2 HEATING SYSTEM (HS1-HS4)
There are two different types of heating circuits, mixed and unmixed. Both types can work in
heating or cooling mode.
1. Mixed heating circuit.
2. Unmixed heating circuit
Different control strategies can be used depending on the configuration of the inputs:
Input
Room
sensor
Setpoint
Supply
sensor
•
•
( )
•
•
•
•
( )
•
-
-
•
( )
•
•
-
•
( )
•
-
•
-
-
•
Room temp
Constant
•
-
-
-
Pump only
-
-
-
-
•
Room temp
Constant
Exigo 4.1 manual, revision A
Return
sensor
Control
strategy
used
Outdoor
sensor
Demand
Curve + adaption
Supply temp
control or
return temp
control
Curve
Supply control:
setpoint
Constant + adaption
Return control:
setpoint + offset
Constant
Curve + adaption
Curve
Setpoint if control
signal > 0%
3 Information for the specialist
27
3.2.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for heating systems.
Analogue inputs
Name
Unit
Description
Outdoor temperature
°C
Frost protection, Calculation of curve-setpoint.
Supply temperature
°C
Control sensor at supply control or limitation sensor at return control.
Room temperature
°C
Control sensor in room control mode or used for room adaption.
Return temperature
°C
Used as control sensor at return control, as limitation sensor at supply
control and for the HP-Return temperature limitation.
Primary Return
temperature
°C
Used for the Return temperature limitation.
Limitation sensor
°C
Used for the universal limitation.
Shift sensor
°C
Used for the universal limitation to shift the limit depending on this input.
Heat capacity
kW
For primary limitation of heating capacity; function capacity limitation.
Wind speed
m/s
For a parallel adjustment of the curve.
Room Humidity
%RH
Humidity in the room.
Extra sensor 1
°C
Extra sensor that can be used by the Remote control unit function.
Extra sensor 2
°C
Extra sensor that can be used by the Remote control unit function.
Extra sensor 3
°C
Extra sensor that can be used by the Remote control unit function.
Extra sensor 4
°C
Extra sensor that can be used by the Remote control unit function.
Extra sensor 5
°C
Extra sensor that can be used by the Remote control unit function.
Name
Unit
Description
Main switch
Off/On
To shut off the system; change the status between Auto and Switch
Off.
Extended Run
Off/On
Digital inputs
Extended run of the heating system.
Change to Cooling mode.
ChangeOver
Off/On
CoolStart
Off/On
“Cooling water” in the system, heating system can start cooling or must
stop heating.
Thermostat
Off/On
To let the heating system work in “Thermostat mode”.
0 = Auto
1 = Cooling
Feedback from circulation pump A depending on the type of feedback.
Motor protection:
Run indication / alarm
pump A
Off/On;
Normal/
Error
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Run indication / alarm
pump B
Off/On;
Normal/
Error
Feedback from circulation pump B (optional for motor protection). If there
is no input configured, the function will use input for pump A for both
pumps.
Analogue outputs
Name
Unit
Description
Valve continuous
%
Used to control an actuator with continuous control.
Name
Unit
Description
Valve open
Off/On
Used to control an actuator with open/close control.
Digital outputs
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3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Description
Valve close
Off/On
Used to control an actuator with open/close control.
Pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Pump B
Off/On
Used to control the second pump of a double pump.
Dehumidification
Off/On
Used to control a humidifier.
Bypass
Off/On
Used to bypass the cooling system.
3.2.2 SETPOINTS
It is possible to change the room setpoint for the different operation times and the night
setback.
The room setpoints are used in three different functions:
1. As a starting point of the DIN-curve to calculate the output of the curve
2. To do a parallel adjustment of the 8-point curve depending on the difference between the
setpoint and the default value of 21 °C in the same way as in the ECO/Comfort function.
3. As an input of the room compensation if a room sensor is configured
If the setpoint type is a DIN-curve or if a room sensor is configured, room setpoints can be set
for the four settable Comfort times (SP-CT1…SP-CT4) and are valid for both types of heating
curves. The night setpoint and the holiday setpoint are calculated as a difference (Diff-NCT or
Diff-Hol) to the setpoint of the following comfort time or of comfort time 1 (during holiday or
if the time to the next comfort time > 24h) The difference will decrease the setpoint in heating
mode and increase it in cooling mode. Both differences are only valid if the DIN-curve is
selected.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Room
Temperature Setp
°C
2.0
50.0
-
Calculated room
setpoint.
HSxActual
Supply
Temperature Setp
°C
2.0
160.0
-
Calculated supply
setpoint.
HSxActual
RoomSP-CT1
°C
2.0
50.0
21.0
Setpoint for Comfort
Time 1.
HSxSetpoint
Room SP-CT2
°C
2.0
50.0
21.0
Setpoint for Comfort
Time 2.
HSxSetpoint
Room SP-CT3
°C
2.0
50.0
21.0
Setpoint for Comfort
Time 3.
HSxSetpoint
Room SP-CT4
°C
2.0
50.0
21.0
Setpoint for Comfort
Time 4.
HSxSetpoint
Room Diff-NCT
°C
0.0
50.0
15.0
Night setpoint
difference, only for
DIN-curve setpoint or
if a room sensor is
configured.
HSxSetpoint
Decreases the
setpoint in heating
mode, and increases
the setpoint in cooling
mode.
Room Diff-Hol
°C
0.0
50.0
5.0
Holiday setpoint
difference, only for
DIN-curve setpoint or
if a room sensor is
configured.
HSxSetpoint
Decreases the
setpoint in heating
mode, and increases
the setpoint in cooling
mode.
Exigo 4.1 manual, revision A
3 Information for the specialist
29
Name
Unit
Min
Max
Default
Description
Menu path
ECO/Comf Mode
Active
-
0
1
1
Activation of ECO
mode, only used for
8-point curve setpoint.
HSxSetpoint
ECO room
degrees
°C
0
10.0
5.0
Only used for 8-point
curve setpoint.
HSxSetpoint
ECO room
degrees holiday
°C
0
10.0
5.0
Only used for 8-point
curve setpoint.
HSxSetpoint
3.2.3 CONTROL CURVES / SETPOINT
The control curve is used to calculate the supply / return setpoint and / or the demand for the
heat producer. There are different kinds of control curves / setpoint calculations:
1. Constant setpoint
2. 8-point curve
3. DIN-curve with slope and exponent (only for heating mode)
Both curve types are outdoor temperature compensated curves.
Constant setpoint
If the setpoint type is set to constant, the setpoint is the same regardless of the outdoor
temperature.
8-point curve
Supply temperature
If the setpoint type is set to 8-point curve, the setpoint depends on the outdoor temperature by
means of a control curve. At 8 settable outdoor temperatures, a corresponding supply
temperature is entered.
80
70
60
50
40
30
20
10
0
-25
-20
-15
-10
-5
0
5
10
15
20
25
Outdoor temperature
Supply temperature
A displacement can be added to the 8-point control curve to move the entire curve up or down.
80
70
60
50
40
30
20
10
0
-25
-20
-15
-10
-5
0
5
10
15
20
25
Outdoor temperature
30
3 Information for the specialist
Exigo 4.1 manual, revision A
DIN-curve with slope and exponent
If the setpoint type is set to DIN-curve, the setpoint depends on the outdoor temperature by
means of a control curve with settable slope and an exponent which bends the curve.
DIN-curve slope
DIN-curve exponent
Some common exponents are:
 1.10 underfloor heating
 1.20 radiators
 1.33 DIN-radiators
 1.25…1.40 Plate radiators
 1.40…1.60 Convectors
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Heating Constant
SetP
°C
2.0
90.0
45.0
Constant heating
setpoint.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 1
°C
-40.0
30.0
-20.0
Outdoor temperature
1 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 2
°C
-40.0
30.0
-15.0
Outdoor temperature
2 for 8-point heating
curve.
HSxSetpoint
Heating
Exigo 4.1 manual, revision A
3 Information for the specialist
31
Name
Unit
Min
Max
Default
Description
Menu path
Heating Outd
Comp Outdoor
Temp 3
°C
-40.0
30.0
-10.0
Outdoor temperature
3 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 4
°C
-40.0
30.0
-5.0
Outdoor temperature
4 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 5
°C
-40.0
30.0
0
Outdoor temperature
5 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 6
°C
-40.0
30.0
5.0
Outdoor temperature
6 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 7
°C
-40.0
30.0
10.0
Outdoor temperature
7 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Outdoor
Temp 8
°C
-40.0
30.0
15.0
Outdoor temperature
8 for 8-point heating
curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 1
°C
2.0
100.0
67.0
Value at outdoor
temperature 1 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 2
°C
2.0
100.0
63.0
Value at outdoor
temperature 2 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 3
°C
2.0
100.0
59.0
Value at outdoor
temperature 3 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 4
°C
2.0
100.0
55.0
Value at outdoor
temperature 4 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 5
°C
2.0
100.0
53.0
Value at outdoor
temperature 5 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 6
°C
2.0
100.0
43.0
Value at outdoor
temperature 6 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 7
°C
2.0
100.0
35.0
Value at outdoor
temperature 7 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Curve
Output 8
°C
2.0
100.0
25.0
Value at outdoor
temperature 8 for 8point heating curve.
HSxSetpoint
Heating Outd
Comp Slope
-
0.1
10.0
1.4
DIN-curve slope.
HSxSetpoint
Heating Outd
Exponent
-
1.10
1.60
1.30
DIN-curve exponent.
HSxSetpoint
Heating Manual
Displacement
°C
-10.0
10.0
0.0
Manual displacement
of the heating curve,
only used for 8-point
curve setpoint.
HSxSetpoint
Supply Offset
Heating
°C
-10.0
10.0
0.0
Offset for demand if
the circuit is return
temperature
controlled.
ConfigurationHS
HSxSystemReturn
Temperature
Control
Cooling Constant
Setpoint
°C
2.0
25.0
13.0
Constant cooling
setpoint.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 1
°C
10.0
40.0
20.0
Outdoor temperature
1 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 2
°C
10.0
40.0
22.0
Outdoor temperature
2 for 8-point cooling
curve.
HSxSetpoint
Cooling
32
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
Cooling Outd
Comp Outdoor
Temp 3
°C
10.0
40.0
24.0
Outdoor temperature
3 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 4
°C
10.0
40.0
26.0
Outdoor temperature
4 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 5
°C
10.0
40.0
28.0
Outdoor temperature
5 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 6
°C
10.0
40.0
30.0
Outdoor temperature
6 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 7
°C
10.0
40.0
32.0
Outdoor temperature
7 of 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Outdoor
Temp 8
°C
10.0
40.0
34.0
Outdoor temperature
8 for 8-point cooling
curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 1
°C
2.0
25.0
15.0
Value at outdoor
temperature 1 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 2
°C
2.0
25.0
14.0
Value at outdoor
temperature 2 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 3
°C
2.0
25.0
13.0
Value at outdoor
temperature 3 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 4
°C
2.0
25.0
12.0
Value at outdoor
temperature 4 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 5
°C
2.0
25.0
12.0
Value at outdoor
temperature 5 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 6
°C
2.0
25.0
11.0
Value at outdoor
temperature 6 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 7
°C
2.0
25.0
10.0
Value at outdoor
temperature 7 for 8point cooling curve.
HSxSetpoint
Cooling Outd
Comp Curve
Output 8
°C
2.0
25.0
9.0
Value at outdoor
temperature 8 for 8point cooling curve.
HSxSetpoint
Cooling Manual
Displacement
°C
-10.0
10.0
0.0
Manual displacement
of the cooling curve,
only used for 8-point
curve setpoint.
HSxSetpoint
Supply Offset
Cooling
°C
0.0
20.0
5.0
Offset for demand if
the circuit is return
temperature
controlled.
ConfigurationHS
HSxSystemReturn
Temperature
Control
3.2.4 GENERAL SETTINGS / CONFIGURATION
Depending on the Control type, the heating system can work as a heating circuit, a cooling
circuit or change between both.
If the Control type is set to ChangeOver, the circuit changes to cooling if the outdoor
temperature exceeds the limit Change Over Cooling or if the input ChangeOver is set to 1
(Cooling). The circuit changes back to heating if the outdoor temperature is falling below the
limit Change Over Heating and the input ChangeOver is set to 0 (Auto). If the input
CoolStart is configured, the circuit can start to cool if the input is 1 and start to heat if the
input is 0.
Exigo 4.1 manual, revision A
3 Information for the specialist
33
If there is a supply sensor and a return sensor configured, the system can control the return
temperature instead of the supply temperature by setting the parameter Return Temperature
Control to 1.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Control type
-
0
2
0
0 = Heating
1 = Cooling
2 = Change Over
ConfigurationHS
HSxSystem
Change Over
Heating
°C
10
50
17
If the outdoor
temperature is lower
than Change Over
Heating, the circuit
changes to heating
mode.
ConfigurationHS
HSxSystemControl
Type
Change Over
Cooling
°C
10
50
24
If the outdoor
temperature is higher
than Change Over
Cooling the circuit
changes to cooling
mode.
ConfigurationHS
HSxSystemControl
Type
Return
Temperature
Control
-
0
1
0
The system controls
the return
temperature instead
of the supply
temperature when
set to 1.
ConfigurationHS
HSxSystem
Type of Heating
Setpoint
-
0
2
1
0 = Constant
1 = 8-point curve
2 = DIN-curve
ConfigurationHS
HSxSystem
Type of Cooling
Setpoint
-
0
1
0
0 = Constant
1 = 8-point curve
ConfigurationHS
HSxSystem
Design Temp
°C
-40
10
-12
If the outdoor
temperature is lower
than Design
temperature, night
setback is stopped.
HSxSetpoint
Pump Type
-
0
1
0
Type of pump;
0 = Single pump
1 = Double pump
ConfigurationHS
HSxSystem
Pump Ind
-
0
1
0
Type of feedback for
the pump.
ConfigurationHS
HSxSystem
0 = motor protection
1 = run indication
34
Pump Delay
s
0
200
10
Delay time of the
pump indication.
ConfigurationHS
HSxSystem
Pump Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHS
HSxSystem
Actuator Type
Valve
-
1
4
1
Type of actuator
ConfigurationHS
HSxSystem
Actuator Runtime
s
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
3 Information for the specialist
0
600
120
Runtime of the
actuator.
ConfigurationHS
HSxSystem
Exigo 4.1 manual, revision A
3.2.5 TEMPERATURE CONTROL
This menu shows all parameters necessary for the configuration of the PI controller of the
heating circuit.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Heating P-band
°C
1
1000
100
P-band heating.
HSxTemp control
Heating I-time
s
0
9999
100
I-time heating.
HSxTemp control
Heating Output
%
0
100
-
Controller output.
HSxTemp control
Cooling P-band
°C
1
1000
20
P-band cooling.
HSxTemp control
Cooling I-time
s
0
9999
60
I-time cooling.
HSxTemp control
Cooling Output
%
0
100
-
Controller output.
HSxTemp control
3.2.6 FROST PROTECTION
In order to prevent damage to the heating circuit, the Frost protection function is always active
(unless the controller is in Non-active or Manual mode). There are three different parameters
that can make the circuit change to frost mode.
 Frost Limit Outdoor: This parameter permits setting the outdoor temperature at
which the pump of the heating circuit will be started. The water in the pipes is kept in
motion even if the heating circuit does not require any heat, thereby preventing
freezing. This should prevent freezing of pipes running at the outdoor wall of the
building. The frost protection mode stops when the outdoor temperature is 1 K above
the limit.
 Frost Limit Supply: This parameter permits setting the supply temperature at which
the circuit changes to frost protection mode. The frost protection mode stops when the
supply temperature is 10 K above the limit.
 Frost Limit Room: This parameter permits setting the room temperature at which the
circuit changes to frost protection mode. The frost protection mode stops when the
room temperature is 1 K above the limit.
During frost protection mode (activated by Frost Limit Supply or Frost Limit Room), the
setpoint and the heat demand is set to the maximum setpoint.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Frost Limit Supply
°C
-30.0
50.0
5.0
The supply
temperature at which
the circuit changes to
frost protection
mode.
ConfigurationHS
HSxFrost
Frost Limit Room
°C
-30.0
50.0
5.0
The room
temperature at which
the circuit changes to
frost protection
mode.
ConfigurationHS
HSxFrost
Frost Limit
Outdoor
°C
-30.0
50.0
2.0
The outdoor
temperature at which
the pump of the
heating circuit will be
started.
ConfigurationHS
HSxFrost
Exigo 4.1 manual, revision A
3 Information for the specialist
35
3.2.7 SHUTDOWN/PUMPSTOP
The Shutdown/Pumpstop function performs the same function that a building caretaker would
perform; monitoring outdoor temperature and switching the heating circuit off. There are
different temperatures for day and night. The night temperatures are valid if the timer of the
heating system is in Eco- or holiday-mode. When in shut-off-mode, the function only attempts
to protect the building by preventing clogging or blocking of pumps and valves and watching
for frost.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
1
Turns the Pump stop
function on or off.
ConfigurationHS
HSxShutdown/Pumpstop

0 = Off
1 = On
Shut Off Heating
Day Temp
°C
0
50
17
Outdoor temperature
to shut off heating
mode during day
(within comfort
times).
ConfigurationHS
HSxShutdown/Pumpstop

Shut Off Heating
Night Temp
°C
0
50
15
Outdoor temperature
to shut off heating
mode during night
(outside of comfort
times).
ConfigurationHS
HSxShutdown/Pumpstop

Shut Off Cooling
Day Temp
°C
0
50
20
Outdoor temperature
to shut off cooling
mode during day
(within comfort
times).
ConfigurationHS
HSxShutdown/Pumpstop

Shut Off Cooling
Night Temp
°C
0
50
22
Outdoor temperature
to shut off cooling
mode during night
(outside of comfort
times).
ConfigurationHS
HSxShutdown/Pumpstop

Hysteresis
°C
0
20
2
Hysteresis of the
Shut Off
temperature.
ConfigurationHS
HSxShutdown/Pumpstop

Switch Off Delay
min
0
60
1
Switch off delay of
the pump.
ConfigurationHS
HSxPump Control
3.2.8 OPTIMIZER / BOOST
The Optimizer function is used in order to reach the set room temperature when comfort time
is activated after a period of night set-back. How far in advance the supply temperature is to be
increased is calculated as below:
Optimization time = (Setpoint Room - Actual value Room) / Heating
capacity
The heating capacity has a minimum and a maximum value (default minimum value is
0.02°C/min, maximum value is 0.1°C/min). The average of the min. and max. capacities is
used as the start value for the function. Then the capacity is converted as below:
Heating capacity = (Heating capacity + Temperature boost / Optimization
time) / 2
Here, the temperature boost is equal to the difference in room temperature when the
optimization was stopped and when it was started.
When outdoor compensation of the start time optimization is active, the compensated capacity
is calculated as below:
36
3 Information for the specialist
Exigo 4.1 manual, revision A
Outdoor compensated capacity = capacity * (1 + Outdoor compensation / 100
* Outdoor temperature diff)
The outdoor compensation is a settable percentage between 0...100 % (0 % = no
compensation). The factory setting is 3 %.
Outdoor temperature diff is the difference between the actual outdoor temperature and the
outdoor temperature at the latest optimization. This function is used in order to reach the set
room temperature when comfort time is activated after a period of night set-back.
Boost: Boost is used to speed up the raising of the indoor temperature when switching from
night set back temperature to normal comfort temperature. This is done by temporarily
displacing the supply temperature setpoint curve. The following conditions must be met:
 Average outdoor temperature must be lower than 17°C
 Supply set-point value must be higher than 25°C
 Night set-back must be more than 2°C (room temperature)
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
1
Turns the Optimizer
function on or off.
ConfigurationHS
HSxOptimizer
0 = Off
1 = On
Heating Capacity
Min
°C/min
0.02
0.1
0.02
Minimum heating
capacity, see the
function description
above.
ConfigurationHS
HSxOptimizer
Heating Capacity
Max
°C/min
0.02
0.1
0.1
Maximum heating
capacity, see the
function description
above.
ConfigurationHS
HSxOptimizer
Outdoor
Compensating
Factor
%
0
100
3
Compensating factor,
see the formula
above.
ConfigurationHS
HSxOptimizer
Boost Factor
h
0.0
10.0
0.0
How long time the
heating system will
increase the demand
to heat up faster.
ConfigurationHS
HSxOptimizer
Start Optimizer
Time Until Start
min
0
1440
-
Calculated time until
start.
HSx Actual
3.2.9 DELAYED OUTDOOR / ROOM TEMPERATURE
Every building has the capacity to store energy. The amount of energy that a building can store
is described in the Building inertia parameter. This value is dependent on the construction of
the building (e.g. the thickness of its outdoor walls, insulation, type of windows, etc.).
If Building inertia is activated (value > 0), the outdoor temperature will be delayed by this
value. The delayed outdoor temperature will then be used instead of the real value.
If a room sensor is configured, the measured value at the sensor can be delayed by the value of
Average. If no room sensor is configured but the building inertia is activated, a virtual room
temperature will be calculated.
The calculation of the virtual room temperature is depending on the latest room setpoint, the
outdoor temperature and the building inertia and simulates the natural cool down of a building.
Exigo 4.1 manual, revision A
3 Information for the specialist
37
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Building inertia
h
0.0
24.0
0.0
Delay of the outdoor
temperature.
Configuration
General Functions
Heating
Average
Min
0.0
60.0
5.0
Delay of the
measured room
temperature.
ConfigurationHS
HSxRoom Average
3.2.10 REMOTE CONTROL UNIT
The Remote control unit function permits configuring the influence of the remote control unit. If
the remote control unit is equipped with a setpoint potentiometer, the signal of the
potentiometer can be connected to the analogue inputs Extra Sensor 1 - 5.
If the remote control unit is equipped with a button, the button can be used to extend the daymode or insert a day-period with the length of Extended Run.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
5
0
Turns the Remote
control unit function
on or off.
ConfigurationHS
HSxRemote
Control
0 = Off
1 = Extra sensor 1
2 = Extra sensor 2
3 = Extra sensor 3
4 = Extra sensor 4
5 = Extra sensor 5
Extended Run
min
0.0
600.0
120.0
Extended run-time.
HSxActual
3.2.11 SUPPORT OPERATION
If a room temperature sensor is configured or a virtual room temperature is calculated, the
additional function Support operation can be used to switch off the pump and close the valve
during non-comfort time until the NCT setpoint is reached. Then the controller starts and
controls the non-comfort setpoint.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Support
Operation Active
-
0
1
0
Turns the Support
operation function on
or off.
ConfigurationHS
HSxSupport
Operation
0 = Off
1 = On
38
3 Information for the specialist
Exigo 4.1 manual, revision A
3.2.12 FLASH ADAPTION
The Flash adaption function switches off the heating as soon as the room temperature exceeds
the setpoint by the settable Limit parameter.
Heating starts again if the room temperature is lower than switch-off point minus 1°C.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Turns the Flash
adaption function on
or off.
ConfigurationHS
HSxFlash
Adaptation
0 = Off
1 = On
Limit
°C
0
10
2
The Flash adaption
function switches off
the heating as soon
as the room
temperature exceeds
the setpoint by this
amount.
ConfigurationHS
HSxFlash
Adaptation
3.2.13 WIND COMPENSATION
The Wind compensation function can generate a setpoint displacement to compensate for wind
chilling if a wind sensor is connected. The function has a settable displacement factor (°C per
m/s).
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Turns the Wind
compensation
function on or off.
ConfigurationHS
HSxWind
compensation
0 = Off
1 = On
Displacement
°C/(m/s)
0.0
2.0
0.1
Displacement factor
to compensate for
wind.
ConfigurationHS
HSxWind
compensation
3.2.14 ROOM COMPENSATION
If the Room compensation function is activated, the calculated setpoint or demand is corrected
by means of a Pl controller according to the control deviation in the room.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Turns the Room
compensation
function on or off.
ConfigurationHS
HSxRoom
Compensation
0 = Off
1 = On
Heat Max Pos
Corr
°C
0.0
100.0
20.0
Max. positive
correction of the
setpoint in heating
mode.
ConfigurationHS
HSxRoom
Compensation
Heat Max Neg
Corr
°C
-100.0
0.0
-20.0
Max. negative
correction of the
setpoint in heating
mode.
ConfigurationHS
HSxRoom
Compensation
Exigo 4.1 manual, revision A
3 Information for the specialist
39
Name
Unit
Min
Max
Default
Description
Menu path
Cool Max Pos
Corr
°C
0.0
100.0
5.0
Max. positive
correction of the
setpoint in cooling
mode.
ConfigurationHS
HSxRoom
Compensation
Cool Max Neg
Corr
°C
-100.0
0.0
-5.0
Max. negative
correction of the
setpoint in cooling
mode.
ConfigurationHS
HSxRoom
Compensation
Room Comp
Heating P-Band
°C
1
100
100
P-band of heating
mode.
HSxTemp Control
Room Comp
Heating I-time
s
0
9999
0
I-time of heating
mode.
HSxTemp Control
Room Comp
Heating Output
°C
Controller output.
HSxTemp Control
Room Comp
Cooling P-Band
°C
1
100
100
P-band of cooling
mode.
HSxTemp Control
Room Comp
Cooling I-time
s
0
9999
0
I-time of cooling
mode.
HSxTemp Control
Room Comp
Cooling Output
°C
Controller output.
HSxTemp Control
3.2.15 TEMPERATURE LIMITATION
The heating systems have individually settable min. and max. temperature limits on the supply
and return. There are different settings for heating and cooling.
If control of supply temperature is selected and the return temperature is not within the set
limits, the supply setpoint will be adjusted with a settable limitation factor (Return Lim.
Heating Scale or Return Lim. Cooling Scale) to eliminate the error. However, the supply
setpoint will never fall below/exceed the set min. /max. setpoint.
If control of return temperature is selected, the supply temperature will be limited by adjusting
the return setpoint.
The displacement minimum limitation is calculated according to:
Displacement = (Min Limit – temperature) * Limitation factor
This displacement can only provide a positive displacement; otherwise the displacement will be
0.
The displacement maximum limitation is calculated according to:
Displacement = (Max Limit - temperature) * Limitation factor
This displacement can only provide a negative displacement; otherwise the displacement will be
0.
Primary and secondary return temperature limits
The primary return temperature must not be more than 3 degrees (settable parameter Max
Delta-T) higher than the secondary return temperature. When the difference exceeds this
value, the control signal to the valve will be overridden to close the valve, i.e. decrease the flow,
which will lower the return temperature.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
0
1
0
Activates return
limitation at the min.
temperature limit for
heating mode.
ConfigurationHS
HSxTemperature
Limit.
Return limitation heat
Min Return Lim.
Heating Mode
40
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3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
Min Return Lim.
Heating Limit
°C
2.0
160.0
2.0
Max Return Lim.
Heating Mode
-
0
1
0
Max Return Lim.
Heating Limit
°C
2.0
160.0
160.0
ConfigurationHS
HSxTemperature
Limit.
Return Lim.
Heating Scale
-
0.0
10.0
1.0
ConfigurationHS
HSxTemperature
Limit.
ConfigurationHS
HSxTemperature
Limit.
Activates return
limitation at the max.
temperature limit for
heating mode.
ConfigurationHS
HSxTemperature
Limit.
Supply limitation heat
Activates supply
limitation at the min.
temperature limit for
heating mode.
ConfigurationHS
HSxTemperature
Limit.
Min Supply Lim.
Heating Mode
-
0
1
0
Min Supply Lim.
Heating Limit
°C
2.0
160.0
2.0
Max Supply Lim.
Heating Mode
-
0
1
0
Max Supply Lim.
Heating Limit
°C
2.0
160.0
160.0
ConfigurationHS
HSxTemperature
Limit.
Supply Lim.
Heating Scale
°C
0.0
10.0
1.0
ConfigurationHS
HSxTemperature
Limit.
Min Return Lim.
Cooling Mode
-
0
1
0
Min Return Lim.
Cooling Limit
°C
2.0
160.0
2.0
Max Return Lim.
Cooling Mode
-
0
1
0
Max Return Lim.
Cooling Limit
°C
2.0
160.0
160.0
ConfigurationHS
HSxTemperature
Limit.
Return Lim.
Cooling Scale
°C
0.0
10.0
1.0
ConfigurationHS
HSxTemperature
Limit.
ConfigurationHS
HSxTemperature
Limit.
Activates supply
limitation at the max.
temperature limit for
heating mode.
ConfigurationHS
HSxTemperature
Limit.
Return limitation cool
Activates return
limitation at the min.
temperature limit for
cooling mode.
ConfigurationHS
HSxTemperature
Limit.
ConfigurationHS
HSxTemperature
Limit.
Activates return
limitation at the max.
temperature limit for
cooling mode.
ConfigurationHS
HSxTemperature
Limit.
Supply limitation cool
Min Supply Lim.
Cooling Mode
-
0
1
0
Min Supply Lim.
Cooling Limit
°C
2.0
160.0
2.0
Max Supply Lim.
Cooling Mode
-
0
1
0
Max Supply Lim.
Cooling Limit
°C
2.0
160.0
160.0
Exigo 4.1 manual, revision A
Activates supply
limitation at the min.
temperature limit for
cooling mode.
ConfigurationHS
HSxTemperature
Limit.
ConfigurationHS
HSxTemperature
Limit.
Activates supply
limitation at the max.
temperature limit for
cooling mode.
ConfigurationHS
HSxTemperature
Limit.
ConfigurationHS
HSxTemperature
Limit.
3 Information for the specialist
41
Name
Unit
Min
Max
Default
Description
Menu path
Supply Lim.
Cooling Scale
-
0.0
10.0
1.0
ConfigurationHS
HSxTemperature
Limit.
Minimum Setp
°C
2.0
160.0
2.0
ConfigurationHS
HSxSetpoint
Limitation
Maximum Setp
°C
2.0
160.0
80.0
ConfigurationHS
HSxSetpoint
Limitation
Mode
-
0
1
0
Activation of Delta-T
control.
ConfigurationHS
HSxReturn
Limitation
Max Delta-T
°C
0.0
100.0
3.0
Max. difference
between HP-return
and HSx-return
sensor.
ConfigurationHS
HSxReturn
Limitation
Return Temp PBand
°C
1
1000
100
P-band.
HSxTemp Control
Return Temp ITime
s
0
9999
100
I-time.
HSxTemp Control
Return Temp
Output
%
0
100
-
Controller output.
HSxTemp Control
Setpoint limitation
Delta-T control
3.2.16 POWER LIMITATION
The Power limitation function permits limitation of the capacity output to the heating circuit.
This function requires a heat meter to be installed and connected, providing the currently used
capacity. Limitation affects the signal to the valve of the heating circuit.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Limit
kW
0
10000
10000
Max. limit of the
consumed heat
capacity.
ConfigurationHS
HSxPower
Limitation
Power Limit PBand
kW
1
1000
100
P-band.
HSxTemp Control
Power Limit ITime
s
0
9999
100
I-time.
HSxTemp Control
Power Limit
Output
%
0
100
-
Controller output.
HSxTemp Control
3.2.17 DEW POINT / DEHUMIDIFICATION
Dew point control is used in order to avoid condensation in the cooling pipe system, especially
when chilled beams are connected. The Dew point function increases the supply temperature
setpoint of the cooling circuit depending on the present dew point in the room. A combined
humidity and temperature transmitter must be connected and configured.
The function calculates the actual dew point temperature and adds it to a settable setpoint
displacement (default 1°C). Then the sum is compared with the present setpoint. The highest
value will be used as supply temperature setpoint for the cooling system.
The Dehumidification function controls the Dehumidifier output depending on the humidity in
the room.
It has two different operation modes; constant or calculated setpoint.
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3 Information for the specialist
Exigo 4.1 manual, revision A
 Constant setpoint: Dehumidifier is switched on if the humidity is higher than the
setpoint and switched off if the humidity is lower than setpoint – hysteresis.
 Calculated setpoint: Dehumidifier is switched on if the dew point temperature is
higher than supply temperature – hysteresis and switched off if the dew point
temperature is lower than supply temperature – hysteresis – 1K.
The function can be set to work permanently or depending on the time schedule.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
-
0
1
0
Turns the Dew point
function on or off.
ConfigurationHS
HSxDewpoint Control
Dew point
Mode
0 = Off
1 = On
SetP Offset
°C
0
10.0
1
The difference
between dew point
temperature and
supply temperature.
ConfigurationHS
HSxDewpoint Control
Min SetP
°C
0
100.0
0
Min limitation of
setpoint.
ConfigurationHS
HSxDewpoint Control
Max SetP
°C
0.1
100.0
100.0
Max limitation of
setpoint.
ConfigurationHS
HSxDewpoint Control
-
0
2
0
Turns the
Dehumidification
function on, off or
time program
controlled.
ConfigurationHS
HSxDehumidification
Dehumidification
Mode
0 = Off
1 = Always on
2 = Time program
controlled
Type of Setpont
-
0
1
0
0 = Constant
1 = Calculated
ConfigurationHS
HSxDehumidification
Dehumidification
SetP
%RH
0
100
55
Only used for
constant setpoint.
HSxSetpoint
Start Diff
°C
0.0
100.0
1.0
Start difference, only
used for calculated
setpoint.
ConfigurationHS
HSxDehumidification
Stop Hyst
%RH
0.0
100.0
2.5
Stop hysteresis, only
used for constant
setpoint.
ConfigurationHS
HSxDehumidification
Exigo 4.1 manual, revision A
3 Information for the specialist
43
3.2.18 UNIVERSAL LIMITATION
The Universal limitation function requires a limitation sensor to be configured.
Depending on the type of limitation, the function can be used optionally for maximum or
minimum limitation and the actuator can either open or close in case of limit violation.
Type 1: Maximum limitation, open valve.
Type 2: Maximum limitation, close valve.
Type 3: Minimum limitation, close valve.
Type 4: Minimum limitation, open valve.
The limit can be defined as fixed value or as shifting value with a variable shifting curve
according to the value of the shift sensor.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Active
-
0
1
1
Turns the Universal
limitation function on
or off.
ConfigurationHS
HSxUniversal
Limit.
0 = Off
1 = On
Type
44
-
3 Information for the specialist
1
4
2
1 = Max limitation,
open valve
2 = Max limitation,
close valve
3 = Min limitation,
ConfigurationHS
HSxUniversal
Limit.
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
close valve
4 = Min limitation,
open valve
Shift
-
0
1
0
Limit defined as a
shifting value (shift
sensor required)
ConfigurationHS
HSxUniversal
Limit.
Limit1
°C
2.0
160.0
80.0
The limit at Entry
point 1.
ConfigurationHS
HSxUniversal
Limit.
EntryPoint1
°C
-50.0
50.0
0.0
Point 1 of the shift
curve.
ConfigurationHS
HSxUniversal
Limit.
Limit2
°C
2.0
160.0
60.0
The limit at Entry
point 2.
ConfigurationHS
HSxUniversal
Limit.
EntryPoint2
°C
-50.0
50.0
20.0
Point 2 of the shift
curve.
ConfigurationHS
HSxUniversal
Limit.
Universal Limit PBand
°C
1
1000
100
P-band.
HSxTemp Control
Universal Limit ITime
s
0
9999
60
I-time.
HSxTemp Control
Universal Limit
Output
%
0
100
The calculated signal
to the valve.
HSxTemp Control
Universal Limit
Setp
°C
2.0
160.0
The calculated limit.
HSxActual
-.-
3.2.19 BYPASS
In a cooling system, a digital output can be used to control a bypass valve. The conditions for
the bypass valve to open are for the outdoor temperature to fall below 3°C and for the control
valve to be closed (0 %). The bypass valve closes if the outdoor temperature is higher than 5°C
or the control valve opens.
3.2.20 SCREED DRYING
The Screed drying function is used in order to support the drying of concrete floors in which an
underfloor heating system is installed. The function influences the supply temperature to
optimize drying time and prevent the possibility of cracks in the floor.
Exigo 4.1 manual, revision A
3 Information for the specialist
45
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
1
1
0
Turns the Screed
drying function on or
off.
ConfigurationHS
HSxScreed Drying
0 = Off
1 = On
Init Temp
°C
2.0
80.0
25.0
The supply
temperature with
which the screed
drying phase will
start.
ConfigurationHS
HSxScreed Drying
Hold Init Temp
days
0
10
1
The duration that the
controller will hold
the Init Temp.
ConfigurationHS
HSxScreed Drying
Rate Temp +
°C
1.0
80.0
5.0
The increase of the
supply temperature
after Time+.
ConfigurationHS
HSxScreed Drying
Time+
days
1
50
1
The duration the
controller will hold
the temperature of
the heat-up period.
ConfigurationHS
HSxScreed Drying
Max Temp
°C
2.0
80.0
45.0
The maximum supply
temperature during
the phase.
ConfigurationHS
HSxScreed Drying
Time Max
days
0
10
3
The time, during
which the controller
will hold the Max
Temp, after which
the temperature will
slowly decrease.
ConfigurationHS
HSxScreed Drying
Rate Temp -
°C
1.0
80.0
5.0
The decrease of the
supply temperature
after Time-.
ConfigurationHS
HSxScreed Drying
Time-
days
1
50
1
The duration the
controller will hold
the temperature of
the cool-down period.
ConfigurationHS
HSxScreed Drying
Opt Power Fail
-
2
2
0
This parameter
permits establishing
how the controller
should react if a
power failure occurs
during the screed
drying period:
ConfigurationHS
HSxScreed Drying
0: Restart current
step
1: Restart completely
2: Stop
Max Xw
°C
0.0
50.0
50.0
Maximum control
deviation, if
exceeded, an alarm
will be set.
ConfigurationHS
HSxScreed Drying
Duration Xw
h
0
5
5
Delay of the “Max
Xw” alarm.
ConfigurationHS
HSxScreed Drying
Reset
-
1
1
0
Restarts the function.
ConfigurationHS
HSxScreed Drying
3.2.21 ACTUATOR EXERCISE
The Actuator exercise function automatically detects if the actuators (pump, valve) have moved
due to having undertaken any control tasks since the last run of the function. If this is not the
case, the pumps, followed by the valve, are triggered for an adjustable interval at a settable
weekday and time, thereby preventing blocking in the actuator and the pump.
The sequence of exercise is the following, but depending on the type of system:
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3 Information for the specialist
Exigo 4.1 manual, revision A
 Pump A
 Pump B (only for double pumps)
 Valve
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
1
1
0
Turns the Actuator
exercise function on
or off.
ConfigurationHS
HSxActuator
Exercise
0 = Off
1 = On
Day
-
0
7
0
0 = Daily
1 = Monday
…
7 = Sunday
ConfigurationHS
HSxActuator
Exercise
Time
hh:mm
00:00
23:59
02:00
Time for actuator
exercise.
ConfigurationHS
HSxActuator
Exercise
Duration
s
0
600
120
Duration of the
actuator exercise.
ConfigurationHS
HSxActuator
Exercise
3.2.22 STATUS
Each circuit has the following sub statuses. For more information about the different main
statuses, see Chapter 2, Information for the end user.
Name
Description
Main Status
0 = Not active
1 = Frost
2 = Switch Off
3 = Support operation
4 = Normal operation
5 = Holiday
6 = Screed drying
Sub Status Frost Outdoor
0 = Off
1 = On
Sub Status Optimizer
0 = Off
1 = On
Sub Status Extended Run
0 = Off
1 = On
Sub Status Flash Adaption
0 = Off
1 = On
Sub Status Support Op.
0 = Off
1 = On
Sub Status Room Comp.
0 = Off
1 = On
Sub Status Boost
0 = Off
1 = On
Sub Status Wind
0 = Off
1 = On
Sub Status Delta-T
0 = Off
1 = On
Sub Status Universal Lim
0 = Off
1 = On
Sub Status Power Lim
0 = Off
1 = On
Sub Status Limitation
0 = Off
1 = On
Sub Status Dewpoint Lim
0 = Off
1 = On
Exigo 4.1 manual, revision A
3 Information for the specialist
47
Name
Description
Sub Status Delay Pump
0 = Off
1 = On
Sub Status Exercise
0 = Off
1 = On
Screed Drying Status
1 = Hold Init Temp
2 = Hold Max Temp
3 = Increase to Max
4 = Decrease to Init Temp
5 = Hold Init Temp
6 = Stop
Screed Drying Timer
The current duration of the actual status.
Nr Power Fail
Number of power failures.
Operating Hours Pump A
Counts the operating hours for pump A. Can be reset by the user.
Operating Hours Pump B
Counts the operating hours for pump B. Can be reset by the user.
3.2.23 ALARMS
For more information about the alarms used by the heating systems, see the full alarm list in
Appendix D.
3.2.24 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the heating systems:
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
HSxManual/Auto
Manual SetP
%
0
100
-
0-100%
HSxManual/Auto
Manual/Auto
Pump
-
0
2
Auto
0 = Manual Off
1 = Manual On
2 = Auto
HSxManual/Auto
-
0
2
Auto
0 = Manual Off
1 = Manual On
2 = Auto
HSxManual/Auto
Manual/Auto
Dehumidification
Output
-
0
2
Auto
0 = Manual Off
1 = Manual On
2 = Auto
HSxManual/Auto
Manual/Auto
Bypass Output
-
0
2
Auto
0 = Manual Off
1 = Manual On
2 = Auto
HSxManual/Auto
PumpA
Manual/Auto
Pump
PumpB
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3 Information for the specialist
Exigo 4.1 manual, revision A
3.3 DOMESTIC HOT WATER (HW1, HW2)
The controller can be configured for one or two domestic hot water systems, HW1 and HW2.
There are six different types of domestic hot water systems available as shown below.
1. PI controlled valve for controlling the supply temperature (flow-through system)
2. System with storage tank and tank charging pump or two-point valve
Exigo 4.1 manual, revision A
3 Information for the specialist
49
3. System with storage tank and tank charging pump plus valve
4. Storage tank charging systems with two point controlled tank and PI controlled load supply
temperature
5. Storage tank charging systems with two-point controlled tank and PI controlled tank supply
temperature
6. Storage tank charging system with two-point controlled tank and two-point controlled tank
supply temperature
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3 Information for the specialist
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3.3.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for domestic hot water systems.
Analogue inputs
Name
Unit
Description
Tank sensor middle
°C
Main sensor placed in the middle of the tank (system type 2-6).
Tank sensor bottom
°C
Additional sensor placed in the bottom of the tank (system type 2-6).
Supply temperature
°C
Supply temperature (system type 1)
Load supply (system type 3-4)
Tank supply temperature (system type 5-6)
Solar tank
temperature
°C
Separate sensor for solar panel systems.
Circulation return
temperature
°C
Used for circulation control (circulation type 3: temperature control) and
in the thermal disinfection function.
Outdoor temperature
°C
Used for the frost protection function to start the circulation pump.
Limitation sensor
°C
Separate sensor for the return temperature limitation function.
External setpoint
°C
External setpoint.
Heat capacity
kW
Used for the power limitation function.
If there is no solar tank sensor, the circuit will use the lowest temperature
in the tank as solar tank temperature.
Digital inputs
Name
Unit
Description
Main switch
Off/Auto
Used to switch off the system.
Flow switch
Off/Auto
Used in system type 1 with electrical heater to shut off the output if
there is no flow.
Start disinfection
-
Used to manually start thermal disinfection independently of the weekly
plan.
0 = Auto
1 = Start disinfection
Feedback tank pump A
-
Feedback from tank pump A depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback tank pump B
-
Feedback from tank pump B (optional for motor protection). If there is
no input configured, the function will use input for pump A for both
pumps.
Feedback exchanger
pump A
-
Feedback from exchanger pump A depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback exchanger
pump B
-
Feedback from exchanger pump B (optional for motor protection). If
there is no input configured, the function will use input for pump A for
both pumps.
Feedback circulation
pump A
-
Feedback from circulation pump A depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Exigo 4.1 manual, revision A
3 Information for the specialist
51
Name
Unit
Description
Feedback circulation
pump B
-
Feedback from circulation pump B (optional for motor protection). If
there is no input configured, the function will use input for pump A for
both pumps.
Analogue outputs
Name
Unit
Description
Valve continuous
%
Used to control an actuator with continuous control.
Name
Unit
Description
Valve open
Off/On
Used to control an actuator with open/close control.
Valve close
Off/On
Used to control an actuator with open/close control.
Tank pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Tank pump B
Off/On
Used to control the second pump of a double pump.
Exchanger pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Exchanger pump B
Off/On
Used to control the second pump of a double pump.
Circulation pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Digital outputs
Circulation pump B
Off/On
Used to control the second pump of a double pump.
Thermal disinfection
Off/On
Used to signal that the Thermal disinfection is working.
Thermal cleaning
Off/On
Used to control the flushing of the pipes.
3.3.2 SETPOINTS
The following parameters are the needed and calculated setpoints for domestic hot water
systems. There is one setpoint per period, and it is possible to change the setpoint for the
different comfort times, the night setback and the holiday period. The boost values are used to
calculate the setpoint of the control circuit depending on the tank/supply setpoint.
Parameters
52
Name
Unit
Min
Max
Default
Description
Menu path
Tank SetP
°C
0.0
100.0
-
Calculated tank
setpoint (system type
2-6).
HWxActual
Supply
Temperature
SetP
°C
0.0
100.0
-
Calculated supply
setpoint (system type
1, 3-6).
HWxActual
Hot Water Setp
SP- CT1
°C
0.0
100.0
50.0
Comfort setpoint,
time period 1.
HWxSetpoint
Hot Water Setp
SP- CT2
°C
0.0
100.0
50.0
Comfort setpoint,
time period 2.
HWxSetpoint
Hot Water Setp
SP- CT3
°C
0.0
100.0
50.0
Comfort setpoint,
time period 3.
HWxSetpoint
Hot Water Setp
SP- CT4
°C
0.0
100.0
50.0
Comfort setpoint,
time period 4.
HWxSetpoint
Hot Water Setp
SP- NCT
°C
0.0
50.0
2.0
Night/Eco mode
setpoint.
HWxSetpoint
Hot Water Setp
SP-Hol
°C
0.0
50.0
2.0
Holiday setpoint.
HWxSetpoint
Boost Demand
°C
0.0
50.0
10.0
Boost to calculate
demand (system type
3-4).
HWxSetpoint
Boost Supply
°C
0.0
50.0
5.0
Boost for tank supply
(system type 5-6).
HWxSetpoint
3 Information for the specialist
Exigo 4.1 manual, revision A
Setpoint calculation
System type 1:
Setpoint supply = Setpoint CTx, night or holiday
System type 2-6:
Setpoint tank = Setpoint CTx, night or holiday
System type 3-4:
Setpoint supply = Setpoint tank + Boost demand
System type 5-6:
Setpoint supply = Setpoint tank + Boost tank supply
3.3.3 GENERAL SETTINGS / CONFIGURATION
To adjust the controller program to the structure of the hot water system, the type of hot water
system can be configured. Depending on the type of hot water system, the valve output and the
pumps can also be configured.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Type
-
1
6
1
Type of domestic hot
water system:
ConfigurationHW
HWxSystem
1 = PI controlled
valve for controlling
the supply
temperature (flowthrough system).
2 = System with
storage tank and
tank charging pump
or two-point valve.
3 = System with
storage tank and
tank charging pump
plus valve.
4 = Storage tank
charging systems
with two point
controlled tank and
PI controlled load
supply temperature.
5 = Storage tank
charging systems
with two-point
controlled tank and
PI controlled tank
supply temperature.
6 = Storage tank
charging system with
two-point controlled
tank and two-point
controlled tank
supply temperature.
Actuator Type
Valve
Exigo 4.1 manual, revision A
1
4
1
Type of actuator:
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
ConfigurationHW
HWxSystem
3 Information for the specialist
53
Name
Unit
Min
Max
Default
Description
Menu path
Actuator Runtime
s
0
600
120
Runtime of 3-point
actuator.
ConfigurationHW
HWxSystem
Tank Pump Type
-
0
1
0
Type of pump:
ConfigurationHW
HWxSystem
0 = Single
1 = Double
Tank Pump Ind
-
0
1
0
Type of feedback for
the pump.
ConfigurationHW
HWxSystem
0 = motor protection
1 = run indication
Tank Pump Delay
s
0
200
10
Delay time of the
pump indication
ConfigurationHW
HWxSystem
Tank Pump
Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHW
HWxSystem
Exchanger Pump
Type
-
0
1
0
Type of pump:
ConfigurationHW
HWxSystem
Exchanger Pump
Ind
-
0 = Single
1 = Double
0
1
0
Type of feedback for
the pump.
ConfigurationHW
HWxSystem
0 = motor protection
1 = run indication
Exchanger Pump
Delay
s
0
200
10
Delay time of the
pump indication.
ConfigurationHW
HWxSystem
Exchanger Pump
Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHW
HWxSystem
Circulation Pump
Type
-
0
1
0
Type of pump:
ConfigurationHW
HWxSystem
Circulation Pump
Ind
-
0 = Single
1 = Double
0
1
0
Type of feedback for
the pump.
ConfigurationHW
HWxSystem
0 = motor protection
1 = run indication
Circulation Pump
Delay
s
0
200
10
Delay time of the
pump indication.
ConfigurationHW
HWxSystem
Circulation Pump
Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHW
HWxSystem
0
1
0
Only used if both
tank sensors are
configured.
ConfigurationHW
HWxTank sensor
Nr Sensor NCT
0 = Both sensors
used during NCT
1 = Only tank top
sensor is used during
NCT.
3.3.4 FROST PROTECTION
The Frost protection function is always active (unless the controller is in non-active or manual
mode) in order to prevent damage (frozen pipes) to the hot water circuit. It consists of three
parts:
 Frost protection tank:
Heats up the tank one time.
The tank setpoint is calculated as Frost Limit Tank + 15°C. Hysteresis is 10 K.
 Frost protection supply:
Starts the controller for system type 1 or the loading process for system type 3-6.
The supply setpoint is calculated as Frost Limit Supply + 15°C. Hysteresis is 1 K.
54
3 Information for the specialist
Exigo 4.1 manual, revision A
 Frost protection outdoor:
Starts the circulation pump. Hysteresis is 1 K.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Frost Limit Tank
°C
2.0
50.0
5.0
The temperature at
which the tank is
heated up.
ConfigurationHW
HWxFrost
Frost Limit Supply
°C
2.0
50.0
5.0
The temperature at
which the loading
system is started.
ConfigurationHW
HWxFrost
Frost Limit
Outdoor
°C
-50.0
50.0
2.0
The temperature at
which the circulation
pump is started.
ConfigurationHW
HWxFrost
3.3.5 THERMAL DISINFECTION
The Thermal disinfection function prevents the build-up of bacteria (Legionella) in the water by
heating up the temperature in the storage tank to at least 60°C.
If required, the storage tank setpoint, Setpoint tank, and the supply setpoint, Setpoint supply,
can be adjusted in order to achieve shorter heat-up times or higher storage tank temperatures.
When activated, thermal disinfection will be performed at regular intervals, according to the
configuration of the parameters Day (day of the week, 0 = daily) and Time (start time). The
disinfection can also be activated by the input Start Disinfection.
During thermal disinfection, the switch output Thermal Disinfection is triggered in order to,
for example, switch an additional heat source on (electric heating, magnet valve for additional
volume). If the storage temperature reaches the specified setpoint, all fittings (taps, shower
heads, etc.) should be cleaned. For this purpose, the thermal disinfection triggers the switch
output Thermal Cleaning for the running time set in the parameter Cleaning time. By opening
a magnetic valve, automatic cleaning is possible. Alternatively, a warning device (lamp, horn,
etc.) can request cleaning. During the cleaning process, the storage tank setpoint of the thermal
disinfection remains effective. If required, the storage tank will be reloaded.
If the circulation pump is supposed to run during thermal disinfection, the circulation pump
has to be activated (see section Circulation) with the parameter Release TD = 1. If there is a
Circulation Return Sensor configured, the temperature at the sensor must be at least at a
temperature of SP Tank – 10 K.
The current storage tank temperature Last temp and the related Last time and Last date are
stored.
If the specified storage tank setpoint is not reached within the Max time after start of this
function, an alarm is triggered with the status “thermal disinfection” and the function is
interrupted.
Parameters
Name
Unit
Mode
Min
Max
Default
Description
Menu path
0
1
0
Activates or
deactivates the
Thermal disinfection
function.
ConfigurationHW
HWxDisinfection
0 = Off
1 = On
SP Tank
Exigo 4.1 manual, revision A
°C
60.0
100.0
70.0
Setpoint tank during
thermal disinfection.
ConfigurationHW
HWxDisinfection
3 Information for the specialist
55
Name
Unit
Min
Max
Default
Description
Menu path
SP Supply
°C
60.0
100.0
75.0
Setpoint supply
during thermal
disinfection.
ConfigurationHW
HWxDisinfection
Day
-
0
7
0
Weekday for thermal
disinfection.
ConfigurationHW
HWxDisinfection
0 = Daily
1-7 = Monday, …,
Sunday
Time
-
00:00
23:59
1:00
Time for thermal
disinfection.
ConfigurationHW
HWxDisinfection
Clean Time
min
0
240
0
Running time for
thermal cleaning.
ConfigurationHW
HWxDisinfection
Max Time
min
0
600
0
Max time for thermal
disinfection.
ConfigurationHW
HWxDisinfection
Thermal Disinfect
Last Temp
°C
60.0
100.0
-
The tank temperature
for the last thermal
disinfection. Read
only.
HWxStatus
Thermal Disinfect
Last Time
-
00:00
23:59
-
The time when the
last thermal
disinfection occurred.
Read only.
HWxStatus
Thermal Disinfect
Last Day
-
01.01.00
31.12.99
-
The date when the
last thermal
disinfection occurred.
Read only.
HWxStatus
Thermal Disinfect
Clean Timer
min
0
240
-
Current value of the
thermal cleaning run
time.
HWxStatus
Thermal Disinfect
Max Timer
min
0
600
-
Current value of the
thermal disinfection
max time.
HWxStatus
3.3.6 POWER LIMITATION
The Power limitation function permits limitation of the capacity output to the domestic hot
water circuit. The function will be active if a Heat capacity input is assigned. This function
requires a heat meter to be installed and connected to provide the currently used capacity.
The limitation affects the signal to the valve of the hot water circuit by closing the valve.
The function doesn’t work for HW of type 2 or 6, since there is no continuous control
of supply temperature for these systems.
Parameters
56
Name
Unit
Min
Max
Default
Description
Menu path
Limit
kW
0
10000
10000
Max limit of the
consumed heat
capacity.
ConfigurationHW
HWxPower
Limitation
Power Limit PBand
kW
1
1000
100
P-band.
HWxTemp Control
Power Limit I-time
s
0
9999
0
I-time.
HWxTemp Control
Power Limit
Output
%
Controller output.
HWxTemp Control
3 Information for the specialist
Exigo 4.1 manual, revision A
3.3.7 RETURN TEMPERATURE LIMITATION
The Return temperature limitation function is used to limit the temperature at the limitation
sensor to a maximum value by closing the valve. The function will be active if a return
temperature sensor is assigned.
If the temperature on the limitation sensor exceeds the limit, the PI-controller of this function
takes over the control of the valve with a seamless transition between the PI-controllers.
The function is working as long as the output of the return limitation PI is lower than the
output of the supply PI.
If the valve is completely closed by the function, it will be opened to 5% every 10 min for 15
seconds. This is needed to get enough circulation of water to be able to measure the right
temperature.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Limit
°C
2.0
160.0
100.0
Maximum
temperature at the
limitation sensor.
ConfigurationHW
HWxReturn
Limitation
Return Temp PBand
°C
1
500.0
100.0
P-band.
HWxTemp Control
Return Temp Itime
s
0
9999
100.0
I-time.
HWxTemp Control
Return Temp
Output
%
0
100
-
Controller output.
HWxTemp Control
3.3.8 TANK CONTROL
The Tank control function applies to all system types in which the storage tank temperature is
controlled by means of on/off control, i.e. system type 2 – 6.
Sensor 1 is placed in the middle of the tank and sensor 2 in the bottom area.
Internally, the HW is working with the lowest and highest tank temperature. If both sensors are
configured, the one with the lowest temperature is used for lowest tank temperature and vice
versa.
If both tank sensors are configured it is possible to determine which sensor is used depending on
the non-comfort time using the Nr Sensor NCT parameter.
 For calculation of the current value for thermal disinfection, the function checks both
sensors regardless of setting.
 For solar panel systems, the lowest of both sensors is used if there is no solar tank
sensor configured.
System type 2-3 uses a positive switch difference:
 Loading is On when lowest temp and highest temp < Setpoint tank
 Loading is Off when lowest and highest temp >= Setpoint tank + Switch difference
System type 4-6 uses a negative switch difference:
 Loading is On when lowest and highest temp < Setpoint tank – Switch difference
 Loading is Off when lowest and highest temp >= Setpoint tank
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Nr Sensor NCT
-
0
1
0
Only used if both tank
sensors are
configured.
ConfigurationHW
HWxTank Sensor
Exigo 4.1 manual, revision A
3 Information for the specialist
57
Name
Unit
Min
Max
Default
Description
Menu path
0 = Both sensors are
used during NCT
1 = Only the middle
tank sensor is used
during NCT.
Tank Control Hyst
Day
°C
0.1
50.0
5.0
Hysteresis used
during comfort mode.
HWxTemp Control
Tank Control Hyst
Night
°C
0.1
50.0
5.0
Hysteresis used
during eco mode.
HWxTemp Control
3.3.9 SUPPLY CONTROL
For system type 1 or systems in combination with system type 1, the supply temperature is
controlled continuously by triggering a valve. The behaviour of the PI controller can be
compensated by adjusting parameters of the controller.
For system type 3-4, the load supply temperature Supply temperature is controlled by means of
Setpoint supply during HW tank loading. This setpoint is the sum of Setpoint tank and Boost
demand.
For system type 5-6, the tank supply temperature is controlled by means of Setpoint supply
during HW tank loading. This setpoint is the sum of Setpoint tank and Boost supply.
The temperature is PI controlled by a valve.
Hysteresis: Switch difference for exchanger load pump for system type 6.
 Exchanger pump is On when tank supply < Setpoint tank supply
 Exchanger pump is Off when tank supply >= Setpoint tank supply + Switch difference
Parameters
58
Name
Unit
Min
Max
Default
Description
Menu path
Supply Control Pband+
°C
1
1000
25
P-band for opening
the valve.
HWxTemp Control
Supply Control Itime+
s
0
9999
100
I-time for opening the
valve.
HWxTemp Control
Supply Control Dtime+
s
0
9999
0
D-time for opening
the valve.
HWxTemp Control
Supply Control Pband-
°C
1
1000
25
P-band for closing the
valve.
HWxTemp Control
Supply Control Itime-
s
0
9999
100
I-time for closing the
valve.
HWxTemp Control
Supply Control Dtime-
s
0
9999
0
D-time for closing the
valve.
HWxTemp Control
Hysteresis
°C
0.0
50.0
10.0
Switch difference for
the exchanger load
pump (system type
6).
HWxTemp Control
3 Information for the specialist
Exigo 4.1 manual, revision A
3.3.10 CIRCULATION
This menu permits defining at what point an installed circulation pump should run.
 If the Main status of the circuit is Not active or Switch Off, the pump is stopped.
 If the Main status is Frost, the pump runs all the time.
Different types of circulation control can be used for the pump:
0: Off
1: Permanently On
2: Pulsed mode
 Pump is running for On-time, and then it stops for Off-time.
3: Temperature control (this option needs an installed circulation return sensor).
 Pump is on until the Circulation return temperature is higher than the highest value of
both tank sensors minus Return-Temp Control Temp-Diff.
 Then the pump stops for Off-time.
 After Off-time, the pump starts for 10 seconds to measure the right temperature
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Rel CTx
-
0
3
1
Control mode for the
circulation pump
during CTx.
ConfigurationHW
HWxCirculation
0 = Off
1 = On
2 = Pulsed mode
3 = Temperature
control mode
Rel NCT
-
0
3
1
Control mode for the
circulation pump
during NO.
ConfigurationHW
HWxCirculation
0 = Off
1 = On
2 = Pulsed mode
3 = Temperature
control mode
Rel Load
-
0
1
1
Release of circulation
pump during tank
load.
ConfigurationHW
HWxCirculation
0 = Off
1 = On
Rel TD
-
0
1
1
Control mode for the
circulation pump
during thermal
disinfection.
ConfigurationHW
HWxCirculation
0 = Off
1 = On
2 = Pulsed mode
3 = Temperature
control mode
Time Control Ontime
min
0
60
2
Pump on time when
in Pulsed mode.
ConfigurationHW
HWxCirculation
Time Control Offtime
min
0
60
30
Pump off time when
in Pulsed mode or
Temperature control
mode.
ConfigurationHW
HWxCirculation
Return-Temp
Control Temp-Diff
°C
0.0
50.0
10.0
Temperature
difference to stop the
circulation in
Temperature control
mode.
ConfigurationHW
HWxCirculation
Exigo 4.1 manual, revision A
3 Information for the specialist
59
3.3.11 SWITCH OFF DELAY
The Switch off delay function permits delaying storage tank loading switch-off or delaying
deactivation of the heat exchanger. The function is divided into two parts, delay of load and
delay of heat exchanger. Both parts work in sequence, delay of heat exchanger starts after delay
of load.
 Delay of load is used to cool down the heat producer if the HW sent the highest
demand. It works for all types of HW systems if the circuit stops loading the tank or
stops the production of tap water for system type 1. While the function runs, the tank
pump and the valve are still working.
 Delay of heat exchanger is used to remove the remaining energy from the heat
exchanger for system type 4–6. For system type 4 and 5 the valve is closed, and tank
pump and exchanger pump runs.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Delay Load
min
0.0
60.0
3.0
Switch off delay for
storage tank loading.
ConfigurationHW
HWxSwitch off
Delay
Delay Exch
s
0
600
120
Switch off delay for
heat exchanger.
ConfigurationHW
HWxSwitch off
Delay
3.3.12 ACTUATOR EXERCISE
The Actuator exercise function automatically detects if the actuators (pump, valve) have moved
due to having undertaken any control tasks since the last run of the function. If this is not the
case, the pumps, followed by the valve, are triggered for an adjustable interval at a settable
weekday and time, thereby preventing blocking in the actuator and the pumps.
The sequence of exercise is the following:
1. Pump A
2. Pump B (only for double pumps)
3. Valve
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Activates or deactivates
the Actuator exercise
function.
ConfigurationHW
HWxActuator
Exercise
0 = Off
1 = On
Day
-
0
7
0
Weekday for actuator
exercise.
0 = Daily
1-7 = Monday, …,
Sunday
60
ConfigurationHW
HWxActuator
Exercise
Time
hh:mm
00:00
23:59
02:00
Time for actuator
exercise.
ConfigurationHW
HWxActuator
Exercise
Duration
s
0
600
120
Duration of the actuator
exercise.
ConfigurationHW
HWxActuator
Exercise
3 Information for the specialist
Exigo 4.1 manual, revision A
3.3.13 STATUS
Each circuit has the following sub statuses. For more information about the different main
statuses, see Chapter 2, Information for the end user.
Name
Description
Main Status
0 = Not active
1 = Frost
2 = Switch off
3 = Support operation
4 = Normal operation
5 = Holiday
Sub Status Load
0 = Off
1 = Load
2 = Hold
3 = Cooling
Sub Status 2PntOff
0 = Off
1 = On
Sub Status Switch Off
0 = Off
1 = SwitchOffLoad
2 = SwitchOffExchanger
Sub Status Return Lim
0 = Off
1 = On
Sub Status Circulation
0 = Off
1 = On
2 = Timer controlled
3 = Temperature controlled
Sub Status Frost Outd
0 = Off
1 = On
Sub Status Power Lim
0 = Off
1 = On
Sub Status Exercise
0 = Off
1 = On
Operating Hours Tank Pump A
Operating hours for Storage tank load pump A.
Operating Hours Tank Pump B
Operating hours for Storage tank load pump B.
Operating Hours Exchanger Pump A
Operating hours for Exchanger pump A.
Operating Hours Exchanger Pump B
Operating hours for Exchanger pump B.
Operating Hours Circulation Pump A
Operating hours for Circulation pump A.
Operating Hours Circulation Pump B
Operating hours for Circulation pump B.
3.3.14 ALARMS
For more information about the alarms used by the domestic hot water systems, see the full
alarm list in Appendix D.
3.3.15 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the domestic hot water systems:
Exigo 4.1 manual, revision A
3 Information for the specialist
61
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
HWxManual/Auto
Manual Set
%
0
100
-
0-100%
HWxManual/Auto
Manual/Auto
Tank-Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HWxManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
HWxManual/Auto
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HWxManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
HWxManual/Auto
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HWxManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
HWxManual/Auto
Manual/Auto
Thermal disinfect.
Manual
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HWxManual/Auto
Manual/Auto
Thermal disinfect.
Clean
-
0
3
Auto
0 = Off
1 = On
2 = Auto
HWxManual/Auto
PumpA
Manual/Auto
Tank-Pump
PumpB
Manual/Auto
Exchanger-Pump
PumpA
Manual/Auto
Exchanger-Pump
PumpB
Manual/Auto
Circulation-Pump
PumpA
Manual/Auto
Circulation-Pump
PumpB
3.4 BUFFER TANK (HP1)
A buffer tank has many positive effects on a system, including reducing starts and stops from a
boiler or heat pump and generating cheaper heat production when available (solar, pellet, etc.).
The temperature in the buffer tank is controlled according to the demands of the internal heat
circuits and domestic hot water circuits, as well as demand via 0…10 V. The controller makes
use of all available heat producers using the following priority:
1. Solar panel
2. Internal heat producer
3.4.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for the buffer tank.
62
3 Information for the specialist
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Analogue inputs
Name
Unit
Description
Buffer temp top
°C
Buffer temperature top, main sensor.
Buffer temp bottom
°C
Buffer temperature bottom, additional sensor.
Demand heating
extern
°C
Demand for an external heat consumer.
Name
Unit
Description
Main switch
Off/Auto
Used to switch off the system.
Feedback load pump
A
-
Feedback from pump A depending on the type of feedback.
Digital inputs
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback load pump
B
-
Feedback from pump B depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Analogue outputs
Name
Unit
Description
Demand
°C
Internal connection to the heat producer to send the heating/cooling
demand.
Name
Unit
Description
Load pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Load pump B
Off/On
Used to control the second pump of a double pump.
Digital outputs
3.4.2 SETPOINTS
The program can control normal buffer tanks with one zone. The Setpoint menu displays the
currently calculated buffer temperature setpoint Setpoint Act based on the demand from the
internal heating circuits, the domestic hot water circuits and external heat consumers or on the
Constant Setpoint depending on the settings. A Hysteresis can also be set in order to overheat
the buffer tank for switching off the heat producers.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Setpoint Act
°C
2.0
160.0
-
Calculated setpoint,
only used if the
parameter
Temperature SP
Type is 1.
BufferSetpoint
Hysteresis
°C
1.0
25.0
5.0
Hysteresis to
overheat the buffer.
BufferSetpoint
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Name
Unit
Min
Max
Default
Description
Menu path
Constant Setpoint
°C
0.0
90.0
50.0
Constant setpoint,
only used if the
parameter
Temperature SP
Type is 0.
BufferSetpoint
3.4.3 BUFFER TANK CONFIGURATION
Name
Unit
Min
Max
Default
Description
Menu path
Temperature SP
Type
-
0
1
1
Type of setpoint.
Configuration
BufferSystem
Max Temp
°C
20.0
90.0
70.0
Pump Type
-
0
1
0
0 = constant setpoint
1 = calculated
setpoint depending on
demand
Maximum buffer tank
temperature.
Configuration
BufferSystem
Type of load pump.
Configuration
BufferSystem
0 = single pump
1 = twin pump
Pump Ind
-
0
1
0
Type of feedback for
the load pump.
Configuration
BufferSystem
0 = motor protection
1 = run indication
Pump Delay
s
0
200
10
Delay time of the
pump indication.
Configuration
BufferSystem
Pump Runtime
h
1
100
100
Runtime of the load
pump.
Configuration
BufferSystem
3.4.4 BOOST
The Boost function can be used to set a boost for each demand (HS, HW, …). The boost can be
used to compensate for loss of energy in long pipes or to disconnect an energy consumer (HS,
HW).
The internal demand of the circuit is calculated as:
internal demand = demand * (1 + Boost/100)
A boost of -100% disconnects the circuit from the setpoint calculation.
Parameters
64
Name
Unit
Min
Max
Default
Description
Menu path
Boost HS1
%
-100
100
0
Boost for the demand
of heating system 1
(only if Type of
setpoint = 1).
Configuration
BufferBoost
Boost HS2
%
-100
100
0
Boost for the demand
of heating system 2
(only if Type of
setpoint = 1).
Configuration
BufferBoost
Boost HS3
%
-100
100
0
Boost for the demand
of heating system 3
(only if Type of
setpoint = 1).
Configuration
BufferBoost
Boost HS4
%
-100
100
0
Boost for the demand
of heating system 4
(only if Type of
setpoint = 1).
Configuration
BufferBoost
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Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
Boost HW1
%
-100
100
0
Boost for the demand
of domestic hot water
system 1 (only if Type
of setpoint = 1).
Configuration
BufferBoost
Boost HW2
%
-100
100
0
Boost for the demand
of domestic hot water
system 2 (only if Type
of setpoint = 1).
Configuration
BufferBoost
Boost EXT
%
-100
100
0
Boost for external
demand (only if Type
of setpoint = 1).
Configuration
BufferBoost
3.4.5 ACTUATOR EXERCISE
The Actuator exercise function automatically detects if the actuators (pump, valve) have moved
due to having undertaken any control tasks since the last run of the function. If this is not the
case, the pumps, followed by the valve, is triggered for an adjustable interval at a settable
weekday and time, thereby preventing blocking in the actuator and the pump.
The sequence of exercise is the following, but depending on the type of system:
1. Pump A
2. Pump B (only for double pumps)
3. Valve
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
1
1
0
Turns the Actuator
exercise function on
or off.
ConfigurationBuffer
Actuator Exercise
0 = Off
1 = On
Day
0
7
0
0 = Daily
1 = Monday
…
7 = Sunday
ConfigurationBuffer
Actuator Exercise
Time
hh:mm
00:00
23:59
02:00
Time for actuator
exercise.
ConfigurationBuffer
Actuator Exercise
Duration
s
0
600
120
Duration of the
actuator exercise.
ConfigurationBuffer
Actuator Exercise
3.4.6 STATUS
The buffer tank has the following sub statuses. For more information about the different main
statuses, see Chapter 2, Information for the end user.
Name
Description
Main Status
0 = Not active
2 = Switch off
4 = Normal operation
Sub Status Load
0 = Off
1 = Load
2 = Hold
Sub Status Exercise
0 = Off
1 = On
Operating Hours Pump A
Operating hours for load pump A.
Operating Hours Pump B
Operating hours for load pump B.
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3.4.7 ALARMS
For more information about the alarms used by the buffer tank, see the full alarm list in
Appendix D.
3.4.8 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the buffer tank:
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
BufferManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
BufferManual/Auto
Pump A
Manual/Auto Pump
Pump B
3.5 DISTRICT HEATING SYSTEM (DHS1)
A district heating circuit is a demand based system. It’s controlling the secondary temperature
with an actuator, using continuous or 3-point control signal. The system collects the demand
from the internal and/or external heat consumer.
3.5.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for district heating systems.
Analogue inputs
66
Name
Unit
Description
Secondary supply
temperature
°C
Main sensor.
Primary return
temperature
°C
Sensor for return limitation.
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Description
Outdoor temperature
°C
Used for frost protection to start the pump.
Heat capacity
kW
Used for primary limitation of heating capacity.
Demand heating extern
°C
Demand for an external heat consumer 0-10 V input.
Digital inputs
Name
Unit
Description
Main switch
Off/Auto
Used to switch off the system.
Feedback pump A
-
Feedback from pump A depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback pump B
-
Feedback from pump B depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Analogue outputs
Name
Unit
Description
Valve continuous
%
Used to control an actuator with continuous control.
Name
Unit
Description
Valve open
Off/On
Used to control an actuator with open/close control.
Valve close
Off/On
Used to control an actuator with open/close control.
Pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Pump B
Off/On
Used to control the second pump of a double pump.
Digital outputs
3.5.2 SETPOINTS
The Actual menu displays the calculated setpoint Supply Temperature SetP.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Supply
Temperature SetP
°C
2.0
160.0
-
Calculated setpoint.
DHS1Actual
3.5.3 GENERAL SETTINGS / CONFIGURATION
To adjust the controller program to the structure of the district heating circuit, the type of the
valve output can be configured and a pump can be configured.
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Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Actuator Type
Valve
-
1
4
1
Type of actuator:
Configuration
DHS1System
Actuator Runtime
s
10
600
120
Runtime of 3-point
actuator.
Configuration
DHS1System
Pump Type
-
0
1
0
Type of pump:
Configuration
DHS1System
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
0 = Single
1 = Double
Pump Ind
-
0
1
0
Type of feedback for
the pump.
Configuration
DHS1System
0 = motor protection
1 = run indication
Pump Delay
s
0
200
10
Delay time of the
pump indication.
Configuration
DHS1System
Pump Runtime
h
1
1000
100
Runtime of the pump,
only used for double
pumps.
Configuration
DHS1System
3.5.4 BOOST
The Boost function can be used to set a boost for each demand (HS, HW, etc.). The boost can
be used to compensate for loss of energy in long pipes or to disconnect an energy consumer
(HS, HW).
The internal demand of the circuit is calculated as:
internal demand = demand * (1 + Boost/100)
A boost of -100% disconnects the circuit from the setpoint calculation.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Boost HS1
%
-100
100
0
Boost of demand for
heating system 1.
Configuration
DHS1Boost
Boost HS2
%
-100
100
0
Boost of demand for
heating system 2.
Configuration
DHS1Boost
Boost HS3
%
-100
100
0
Boost of demand for
heating system 3.
Configuration
DHS1Boost
Boost HS4
%
-100
100
0
Boost of demand for
heating system 4.
Configuration
DHS1Boost
Boost HW1
%
-100
100
0
Boost of demand for
domestic hot water
system 1.
Configuration
DHS1Boost
Boost HW2
%
-100
100
0
Boost of demand for
domestic hot water
system 2.
Configuration
DHS1Boost
Boost EXT
%
-100
100
0
Boost for external
demand.
Configuration
DHS1Boost
3.5.5 SETPOINT LIMITATION
The Setpoint limitation function consists of three different sub-functions.
The functions are only active if the circuit is in normal operation (Main status = 4).
Static limitation:
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1. Limitation of the setpoint using the parameters Min SP and Max SP
2. Limitation of setpoint adjustment speed:
Limitation of the setpoint adjustment speed using the Ramp- (negative deviation) and
Ramp+ (positive deviation) parameters. A ramp of 1400 means that the function is
disabled.
When the function is activated it starts at the current supply temperature.
3. Limitation of deviation:
Limitation of the deviation of the setpoint compared to the supply temperature. The
setpoint can’t be higher than the supply temperature + Max Dev. This limitation is mainly
used when you have steam as a heat source to avoid steam explosions that could occur if
the temperature difference between the steam and the water is too big.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Setpoint
Limitation Min SP
°C
2.0
90.0
2.0
Minimum setpoint
temperature.
Configuration
DHS1Setpoint
Limitation
Setpoint
Limitation Max SP
°C
2.0
160.0
85.0
Maximum setpoint
temperature.
Configuration
DHS1Setpoint
Limitation
Setpoint
Limitation Ramp+
°C/h
0.1
1400.0
1400.0
Maximum setpoint
adjustment speed
when increasing the
setpoint.
Configuration
DHS1Setpoint
Limitation
Setpoint
Limitation Ramp-
°C/h
0.1
1400.0
1400.0
Maximum setpoint
adjustment speed
when decreasing the
setpoint.
Configuration
DHS1Setpoint
Limitation
Setpoint
Limitation Max
Dev
°C
1.0
100.0
100.0
Maximum difference
between the setpoint
and the current
supply temperature.
Configuration
DHS1Setpoint
Limitation
3.5.6 SUPPLY CONTROL
The Temp control menu contains the settings of the PI-supply controller.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Supply Control PBand+
°C
1
1000
25
P-band for opening
the valve.
DHS1Temp Control
Supply Control ITime+
s
0
9999
100
I-time for opening the
valve.
DHS1Temp Control
Supply Control PBand-
°C
1
1000
25
P-band for closing the
valve.
DHS1Temp Control
Supply Control ITime-
s
0
9999
100
I-time for closing the
valve.
DHS1Temp Control
Supply Control
Ouput
%
0
100
-
Controller output.
DHS1Temp Control
3.5.7 SUPPLY LIMITATION
The Supply limitation function ensures that the supply temperature will not rise above a given
value. This function closes the valve.
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Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Supply Limitation
Mode
-
0
1
0
Turns the Supply
limitation function on
or off.
ConfigurationDHS1
Supply Limitation
0 = Off
1 = On
Max-Supply
°C
2.0
90.0
90.0
Maximum supply
temperature.
ConfigurationDHS1
Supply Limitation
3.5.8 POWER LIMITATION
The Power limitation function permits limitation of the capacity output to the district heating
circuit. The function will be active if a Heat capacity input is assigned. This function requires a
heat meter to be installed and connected to provide the currently used capacity.
The limitation affects the signal to the valve of the district heating system by closing the valve.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Limit
kW
0
10000
10000
Max limit of the
consumed heat
capacity.
ConfigurationDHS1
Power Limitation
P-Band
kW
1
1000
100
P-band.
DHS1Temp Control
I-time
s
0
9999
0
I-time.
DHS1Temp Control
Output
%
0
100
-
Controller output.
DHS1Temp Control
3.5.9 FROST LIMITATION
The Frost limitation function is used to keep the water in the pipes in motion to prevent
freezing. It is only available if a pump is installed. If the outdoor temperature falls below Frost
Limit Outdoor the pump is always on.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Frost Limit
Outdoor
°C
-40.0
50.0
2.0
The temperature at
which the pump is
always on.
Configuration
DHS1Frost
3.5.10 RETURN TEMPERATURE LIMITATION
The Return temperature limitation function is used to limit the temperature at the primary
return sensor to a maximum value by closing the valve. The function is active if a return
temperature sensor is assigned.
It’s possible to define different limits for HS and HW. The current limit can be calculated
depending on the outdoor temperature.
If the temperature on the limitation sensor exceeds the limit, the PI-controller of this function
takes over the control of the valve with a seamless transition between the PI-controllers.
The function is working as long as the output of the return limitation PI is lower than the
output of the supply PI.
If the valve is completely closed by the function, it will be opened to 5% every 10 min for 15
seconds. This is needed to get a circulation of water to measure the right temperature.
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Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Return Limitation
LimHS min
°C
2.0
160.0
60.0
Limit at Entry-Point
Outdoor Max,
“Outdoor max” in the
picture above. Used if
the demand is from
HS.
ConfigurationDHS1
Return Limitation
Return Limitation
LimHS max
°C
2.0
160.0
60.0
Limit at Entry-Point
Outdoor Min,
“Outdoor min” in the
picture above. Used if
the demand is from
HS.
ConfigurationDHS1
Return Limitation
Return Limitation
LimHW min
°C
2.0
160.0
80.0
Limit at Entry-Point
Outdoor Max,
“Outdoor max” in the
picture above. Used if
the demand is from
HW.
ConfigurationDHS1
Return Limitation
Return Limitation
LimHW max
°C
2.0
160.0
80.0
Limit at Entry-Point
Outdoor Min,
“Outdoor min” in the
picture above. Used if
the demand is from
HW.
ConfigurationDHS1
Return Limitation
Return Limitation
Entry-Point 1
Outdoor Min
°C
-20.0
20.0
0.0
“Outdoor min” in the
picture above.
ConfigurationDHS1
Return Limitation
Return Limitation
Entry-Point 2
Outdoor Max
°C
-20.0
20.0
0.0
“Outdoor max” in the
picture above.
ConfigurationDHS1
Return Limitation
Return Limitation
P-Band
°C
1
1000
25
P-band
DHS1Temp Control
Return Limitation
I-Time
s
0
9999
100
I-time
DHS1Temp Control
Return
Temperature Setp
°C
2.0
160.0
-
The current
calculated limit.
DHS1Actual
Return
Temperature Act
%
0
100.0
-
The current correction
signal of the PI
controller.
DHS1Actual
3.5.11 PUMP
It is possible to activate a switch off delay of the pump used after the district heating circuit
changed its state to shutoff.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Switch-Off Delay
s
0
600
120
Switch off delay of the
pump.
Configuration
DHS1Pump
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3.5.12 ACTUATOR EXERCISE
The Actuator exercise function automatically detects if the actuators (pump, valve) have moved
due to having undertaken any control tasks since the last run of the function. If this is not the
case, the pumps, followed by the valve, are triggered for an adjustable interval at a settable
weekday and time, thereby preventing blocking in the actuator and the pump.
The sequence of exercise is the following:
1. Pump A
2. Pump B (only for double pumps)
3. Valve
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Activates or
deactivates the
Actuator exercise
function.
ConfigurationDHS1
Actuator Exercise
0 = Off
1 = On
Day
-
0
7
0
Weekday for actuator
exercise.
ConfigurationDHS1
Actuator Exercise
0 = Daily
1-7 = Monday, …,
Sunday
Time
hh:mm
00:00
23:59
02:00
Time for actuator
exercise.
ConfigurationDHS1
Actuator Exercise
Duration
s
0
600
120
Duration of the
actuator exercise.
ConfigurationDHS1
Actuator Exercise
3.5.13 STATUS
The district heating system has the following sub statuses. For more information about the
different main statuses, see Chapter 2, Information for the end user.
Name
Description
Main Status
0 = Not active
1 = Frost
2 = Switch off
4 = Normal operation
Sub Status Frost Outd
0 = Off
1 = On
Sub Status Supply Lim
0 = Off
1 = On
Sub Status Switch Off Del
0 = Off
1 = On
Sub Status Power Lim
0 = Off
1 = On
Sub Status Exercise
0 = Off
1 = On
Sub Status Setpoint Lim
0 = Off
1 = On
Operating Hours Pump A
Operating hours for pump A.
Operating Hours Pump B
Operating hours for pump B.
3.5.14 ALARMS
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For more information about the alarms used by the district heating system, see the full alarm
list in Appendix D.
3.5.15 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the district heating system:
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
DHS1Manual/Auto
Manual Set
%
0
100
-
0-100%
DHS1Manual/Auto
Manual/Auto
Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
DHS1Manual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
DHS1Manual/Auto
Pump A
Manual/Auto
Pump
Pump B
3.6 SOLAR
The solar circuit can be used either for heating the domestic hot water storage tank or in order
to heat up the buffer tank. The basic function of the solar circuit is to control the temperature
difference between the collector sensor and the storage sensor.
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3.6.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for solar panel systems:
Analogue inputs
Name
Unit
Description
Solar HW1
°C
Solar sensor in Domestic hot water 1.
Solar HW2
°C
Solar sensor in Domestic hot water 2.
Solar buffer
°C
Solar sensor in the buffer tank.
Solar collector
temperature
°C
Solar collector sensor.
Solar return temperature
°C
Solar collector return sensor.
Name
Unit
Description
Main switch
Off/Auto
Used to switch off the system.
Feedback pump A
-
Feedback from pump A depending on the type of feedback.
Digital inputs
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback pump B
-
Feedback from pump B depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Analogue outputs
Name
Unit
Description
Continuous pump
%
Output to control the speed of a pump.
Unit
Description
Digital outputs
Name
Solar pump A
Off/On
Used to control a single pump or the first pump of a double pump.
Solar pump B
Off/On
Used to control the second pump of a double pump.
Switch HW-buffer
Off/On
0 = Load HW tank
1 = Load buffer tank
3.6.2 GENERAL SETTINGS / CONFIGURATION
The Solar function permits activating and configuring control of an integrated solar thermal
collector, which can be used to load the buffer tank or a hot water tank with additional heat, if
available. A maximum temperature and frost limit can also be defined.
The basic function of the solar circuit is to control the temperature difference between the
collector sensor and the storage tank sensor. If the temperature difference rises above T-Diff
On, the solar pump is switched on.
A P-controller controls the difference between the tank temperature and the collector
temperature by reducing the pump speed.
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3 Information for the specialist
Exigo 4.1 manual, revision A
This pump is switched off when the temperature difference decreases below T-Diff Off.
Parameters
Name
Unit
Min
Max
Default
Pump Type
-
0
1
0
Description
Menu path
Type of pump used.
Configuration
SolarSystem
0 = single ump
1 = twin pump
Pump Ind
-
0
1
0
Type of feedback for
the load pump.
Configuration
SolarSystem
0 = motor protection
1 = run indication
Pump Delay
s
0
200
10
Delay time of the
pump indication.
Configuration
SolarSystem
Pump Runtime
h
1
1000
100
Runtime of the load
pump.
Configuration
SolarSystem
0
2
0
Priority of Buffer and
HW.
Configuration
SolarSystem
Priority Buffer/HW
0 = Auto
1 = only HW
2 = only Buffer
Priority HW1/HW2
-
0
1
0
0 = Use HW1
(default)
1 = Use HW2
Configuration
SolarSystem
Solar 2 Point
Control T-Diff On
°C
0.0
30.0
8.0
The temperature
difference between
the collector sensor
and storage tank
sensor at which the
solar pump is
switched on.
Configuration
SolarControl
Solar 2 Point
Control T-Diff Off
°C
0.0
20.0
2.0
The temperature
difference between
the collector sensor
and storage tank
sensor at which the
solar pump is
switched off.
Configuration
SolarControl
P-Band
°C
1
100
8
P-band
SolarTemp
Control
Temperature
Limits Max-T Coll
°C
70.0
160.0
110.0
Temperature at which
the solar pump is
always switched off.
Configuration
SolarControl
Temperature
Limits Frost Coll
°C
-50.0
10.0
-10.0
Temperature at which
the solar pump is
always switched on.
Configuration
SolarControl
3.6.3 ACTUATOR EXERCISE
The Actuator exercise function automatically detects if the actuators (pump, valve) have moved
due to having undertaken any control tasks since the last run of the function. If this is not the
case, the pumps, followed by the valve, are triggered for an adjustable interval at a settable
weekday and time, thereby preventing blocking in the actuator and the pump.
The sequence of exercise is the following:
1. Pump A
2. Pump B (only for double pumps)
3. Valve
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3 Information for the specialist
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Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Mode
-
0
1
0
Activates or
deactivates the
Actuator exercise
function.
Configuration
SolarActuator
Exercise
0 = Off
1 = On
Day
-
0
7
0
Weekday for actuator
exercise.
0 = Daily
1-7 = Monday, …,
Sunday
Configuration
SolarActuator
Exercise
Time
hh:mm
00:00
23:59
02:00
Time for actuator
exercise.
Configuration
SolarActuator
Exercise
Duration
s
0
600
120
Duration of the
actuator exercise.
Configuration
SolarActuator
Exercise
3.6.4 STATUS
The solar circuit has the following sub statuses. For more information about the different main
statuses, see Chapter 2, Information for the end user.
Name
Description
Main status
0 = Not active
2 = Switch off
4 = Normal operation
Sub status Solar
0 = Off
1 = Load
2 = Hold
3 = Cooling
4 = Frost
Sub Status Exercise
0 = Off
1 = On
Operating Hours Pump Cont
Operating hours for the continuous pump
Operating Hours Pump-A
Operating hours for pump A.
Operating Hours Pump-B
Operating hours for pump B.
3.6.5 ALARMS
For more information about the alarms used by solar circuit, see the full alarm list in Appendix
D.
3.6.6 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the solar circuit:
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3 Information for the specialist
Exigo 4.1 manual, revision A
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto P-Cont
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
SolarManual/Auto
Manual Set
%
0
100
-
0-100%
SolarManual/Auto
Manual/Auto Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
SolarManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
SolarManual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
SolarManual/Auto
PumpA
Manual/Auto Pump
PumpB
Manual/Auto Load
Buffer Output
3.7 BOILER CONTROL (HB1-HB4)
The controller can be configured for boiler control with 1-4 boilers. Depending on the type of
boiler control, the burners of each boiler can be configured as 1-step, 2-step and modulating.
The burners are controlled either by a PI-controller with settable P-band and I-time or by using
a thermostat function.
3.7.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for boiler control systems.
Analogue inputs
Name
Unit
Supply temperature
°C
Return temperature
°C
Boiler 1 supply temperature
°C
Boiler 1 return temperature
°C
Boiler 2 supply temperature
°C
Boiler 2 return temperature
°C
Boiler 3 supply temperature
°C
Boiler 3 return temperature
°C
Boiler 4 supply temperature
°C
Boiler 4 return temperature
°C
Description
Digital inputs
Name
Unit
Run indication Boiler 1
Off-On
Run indication / alarm Boiler 1
Pump A
Off-On
Run indication / alarm Boiler 1
Pump B
Off-On
Run indication / alarm Boiler 1
Return Pump
Off-On
Run indication Boiler 2
Off-On
Run indication / alarm Boiler 2
Pump A
Off-On
Run indication / alarm Boiler 2
Pump B
Off-On
Exigo 4.1 manual, revision A
Description
3 Information for the specialist
77
Name
Unit
Run indication / alarm Boiler 2
Return Pump
Off-On
Run indication Boiler 3
Off-On
Run indication / alarm Boiler 3
Pump A
Off-On
Run indication / alarm Boiler 3
Pump B
Off-On
Run indication / alarm Boiler 3
Return Pump
Off-On
Run indication Boiler 4
Off-On
Run indication / alarm Boiler 4
Pump A
Off-On
Run indication / alarm Boiler 4
Pump B
Off-On
Run indication / alarm Boiler 4
Return Pump
Off-On
Run indication / alarm Transport
Pump A
Off-On
Run indication / alarm Transport
Pump B
Off-On
Boiler Alarm
Off-On
Expansion Vessel
Off-On
External stop Boiler 1–4
Off-On
Pressure / Flow switch
Off-On
Description
Analogue outputs
Name
Unit
Boiler 1 Modulating
%
Boiler 1 Return Valve
%
Boiler 2 Modulating
%
Boiler 2 Return Valve
%
Boiler 3 Modulating
%
Boiler 3 Return Valve
%
Boiler 4 Modulating
%
Boiler 4 Return Valve
%
Description
Digital outputs
78
Name
Unit
Boiler 1 Vessel
Off/On
Boiler 1 Vessel (high effect)
Off/On
Boiler 1 Return Pump
Off/On
Boiler 1 Pump A
Off/On
Boiler 1 Pump B
Off/On
Boiler 2 Vessel
Off/On
Boiler 2 Vessel (high effect)
Off/On
Boiler 2 Return Pump
Off/On
Boiler 2 Pump A
Off/On
Boiler 2 Pump B
Off/On
Boiler 3 Vessel
Off/On
Boiler 3 Vessel (high effect)
Off/On
Boiler 3 Return Pump
Off/On
Boiler 3 Pump A
Off/On
3 Information for the specialist
Description
Exigo 4.1 manual, revision A
Name
Unit
Boiler 3 Pump B
Off/On
Boiler 4 Vessel
Off/On
Boiler 4 Vessel (high effect
Off/On
Boiler 4 Return Pump
Off/On
Boiler 4 Pump A
Off/On
Boiler 4 Pump B
Off/On
Description
3.7.2 SETPOINT
The boiler control setpoint can be configured to one of the following alternatives:
 Constant setpoint: A fixed settable value.
 Circuit-dependent setpoint: Can be set to any of the following options:
1. HS-dependent
2. HW-dependent
3. HP1-dependent
4. HS- and HW-dependent
5. HS- and HP1-dependent
6. HW- and HP1-dependent
7. HS-, HW- and HP1-dependent
When a circuit-dependent setpoint has been configured, the boiler control setpoint is
dependent on the setpoints of other circuits. The circuit whose setpoint is currently
the highest will, together with an added offset (pre-set to 5 degrees), constitute the
boiler control setpoint.
 Outdoor compensated setpoint = the setpoint varies with the outdoor temperature.
Heat demand
In addition to the internal setpoint, an analogue input may also be configured to receive a
setpoint from another controller. The highest setpoint (internal or external) will be used as the
relevant setpoint for the boiler.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
HB Setpoint
°C
2.0
160.0
-
The current setpoint.
HBActual/Setpoint
Offset HS
Setpoint
°C
0.0
20.0
5.0
Offset of circuit
dependent setpoint.
HBActual/Setpoint
Type of Setpoint
-
0
5
0
0 = Constant
1 = HS
2 = HS, HW
3 = HS, HP
4 = HS, HW, HP
5 = Curve
ConfigurationHB
General
Constant Setpoint
°C
2.0
100.0
36.0
Constant setpoint.
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 1
°C
-40.0
30.0
-20.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 2
°C
-40.0
30.0
-15.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 3
°C
-40.0
30.0
-10.0
HBActual/Setpoint
Outd Temp SetP
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3 Information for the specialist
79
Name
Unit
Min
Max
Default
Description
Outdoor Temp 4
°C
-40.0
30.0
-5.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 5
°C
-40.0
30.0
0.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 6
°C
-40.0
30.0
5.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 7
°C
-40.0
30.0
10.0
HBActual/Setpoint
Outd Temp SetP
Outdoor Temp 8
°C
-40.0
30.0
15.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 1
°C
2.0
100.0
67.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 2
°C
2.0
100.0
63.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 3
°C
2.0
100.0
59.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 4
°C
2.0
100.0
55.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 5
°C
2.0
100.0
53.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 6
°C
2.0
100.0
43.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 7
°C
2.0
100.0
35.0
HBActual/Setpoint
Outd Temp SetP
Curve Output 8
°C
2.0
100.0
25.0
HBActual/Setpoint
Outd Temp SetP
Man Paral Dis
°C
-10.0
10.0
5.0
Offset of the curve
setpoint.
Menu path
HBActual/Setpoint
Outd Temp SetP
3.7.3 TYPE OF BOILER CONTROL
The boiler can be set as off/on control, control using off/on/modulating or as control using
modulating (parameter Type of Boiler Ctrl).
Off/on control
In this control mode, the burners are controlled using a thermostat function. The burners for
each boiler can be configured as 1- or 2-step burners with settable hysteresis, Switch difference
1 (SD1) and Switch difference 2 (SD2) respectively, and an offset for step 2 (high output).
Starting and stopping takes place according to the formulas below, see picture for an example:
Start low output = SP – SD1
Start high output = SP – SD2 – offset
Stop low output = SP
Stop high output = SP – offset
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Exigo 4.1 manual, revision A
Control using off/on/modulating
In this control mode, the boilers are controlled by a PI-controller with settable P-band and Itime. The initial boiler can either be set to modulating (0…10 V), off/on (1-step) or
off/on/high (2-step). Boiler 2-4 can be either 1-step or 2-step.
When boiler 1 is configured as modulating:
Upon a heating requirement increase the analogue output is first controlled 0…10 V. If the
heating requirement becomes so great that the first burner is inadequate, the first digital output
will be added. The analogue output is kept to 0 V for a settable time period and the controller
is blocked. Thereafter, the analogue output will once more be controlled 0…10 V, depending
on the heating requirement. A decrease in heating requirement will result in the opposite
function (see picture below). The controller will increase/decrease by one step at a time, and
each time a digital output is switched on or off, the controller will be blocked for the set time
period.
When boiler 1 is configured to a digital function (1-step or 2-step) the digital outputs will step
into sequence by one step at a time, and each time a digital output is switched on or off the
controller will be blocked for the set time period (see picture below).
Control using modulating
In this control mode, the burners can only be set as modulating burners (0…10 V). The burners
are controlled by a PI-controller with settable P-band and I-time. When there is a heating
requirement, the burners are controlled 0…10 V in sequence, and each time a digital output is
switched on or off the controller will be blocked for the set time period (see picture below).
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3 Information for the specialist
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Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Type of Boiler Ctrl
-
0
2
0
Type of boiler:
Configuration
HBGeneral
0 = Off/on control
1 = Control using
off/on/modulating
2 = Control using
modulating
Number of Boilers
-
0
4
0
Configuration
HBGeneral
P-band
°C
1
1000
30
HBTemp Control
I-time
s
0
9999
15
HBTemp Control
Time That The
Ctrl is Blocked at
Start/Stop
s
0
600
180
Time that the
controller is blocked
at start / stop of
boiler.
HBTemp Control
HB
Hysteresis
%
0
100
0.5
Hysteresis for start /
stop boiler.
HBTemp Control
HB
3.7.4 BOILER SETTINGS
The type of vessel and the type of modulation can be set separately for each boiler.
A minimum run and stop time for each boiler are individually settable. When the heating
requirement increases, the next boiler can start only after the previous boiler has completed its
minimum runtime, and when the heating requirement decreases the boiler will not switch off
until after its minimum runtime has been completed. A stopped boiler can start again only after
it has been switched off for a minimum duration of the set stop time.
These variables are both set to 180 seconds for all boilers.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Type of Vessel
Boiler 1
-
0
3
0
Type of Vessel,
Boiler 1
Configuration
HBHB1
0 = 1-step
1 = 2-step
3 = Modulating
Vessel1 Control
Signal
-
1
4
1
Actuator Type, Boiler
1
Configuration
HBHB1
1 = 0-10 V
2 = 2-10 V
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3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
3 = 10-2 V
4 = 10-0 V
Min run time
Boiler 1
s
0
3600
180
Configuration
HBHB1
Min stop time
Boiler 1
s
0
3600
180
Configuration
HBHB1
Switch Diff1
(Boiler 1)
°C
0
100
5
Switch difference 1,
see section On/Off
control.
HBActual/
SetpointHB1
Switch Diff2
(Boiler 1)
°C
0
100
5
Switch difference 2,
see section On/Off
control.
HBActual/
SetpointHB1
Off Sw Diff2
(Boiler 1)
°C
0
100
3
Offset switch
difference 2, see
section On/Off
control.
HBActual/
SetpointHB1
Type of Vessel
Boiler 2
-
0
3
0
0 = 1-step
1 = 2-step
3 = Modulating
Configuration
HBHB2
Vessel2 Control
Signal
-
1
4
1
Actuator Type, Boiler
2
Configuration
HBHB2
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
Min run time
Boiler 2
s
0
3600
180
Configuration
HBHB2
Min stop time
Boiler 2
s
0
3600
180
Configuration HB
HB2
Switch Diff1
(Boiler 2)
°C
0
100
5
Switch difference 1,
see section On/Off
control.
HBActual/
SetpointHB2
Switch Diff2
(Boiler 2)
°C
0
100
5
Switch difference 2,
see section On/Off
control.
HBActual/
SetpointHB2
Off Sw Diff2
(Boiler 2)
°C
0
100
3
Offset switch
difference 2, see
section On/Off
control.
HBActual/
SetpointHB2
Type of Vessel
Boiler 3
-
0
3
0
0 = 1-step
1 = 2-step
3 = Modulating
Configuration
HBHB3
Vessel3 Control
Signal
-
1
4
1
Actuator Type, Boiler
3
Configuration
HBHB3
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
Min run time
Boiler 3
s
0
3600
180
Configuration
HBHB3
Min stop time
Boiler 3
s
0
3600
180
Configuration
HBHB3
Switch Diff1
(Boiler 3)
°C
0
100
5
Switch difference 1,
see section On/Off
control.
HBActual/
SetpointHB3
Switch Diff2
(Boiler 3)
°C
0
100
5
Switch difference 2,
see section On/Off
control.
HBActual/
SetpointHB3
Off Sw Diff2
(Boiler 3)
°C
0
100
3
Offset switch
difference 2, see
section On/Off
control.
HBActual/
SetpointHB3
Type of Vessel
Boiler 4
-
0
3
0
0 = 1-step
1 = 2-step
3 = Modulating
Configuration
HBHB4
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3 Information for the specialist
83
Name
Unit
Min
Max
Default
Description
Menu path
Vessel4 Control
Signal
-
1
4
1
Actuator Type, Boiler
4
Configuration
HBHB4
1 = 0-10 V
2 = 2-10 V
3 = 10-2 V
4 = 10-0 V
Min run time
Boiler 4
s
0
3600
180
Configuration
HBHB4
Min stop time
Boiler 4
s
0
3600
180
Configuration
HBHB4
Switch Diff1
(Boiler 4)
°C
0
100
5
Switch difference 1,
see section On/Off
control.
HBActual/
SetpointHB4
Switch Diff2
(Boiler 4)
°C
0
100
5
Switch difference 2,
see section On/Off
control.
HBActual/
SetpointHB4
Off Sw Diff2
(Boiler 4)
°C
0
100
3
Offset switch
difference 2, see
section On/Off
control.
HBActual/
SetpointHB4
3.7.5 STARTING ORDER
Boiler starting order can be set individually:
 Fixed starting order. The boilers will always start in the same order: Fixed Boiler 1,
Fixed Boiler 2, Fixed Boiler 3 and Fixed Boiler 4.
 Runtime-controlled: The boilers will start in order based on shortest runtime.
 Alternating: The start order of the boilers will be changed once per week, alternatively
once per day, at a settable time. When changing, the start order will be displaced by
one step. I.e.: The boiler which before changing started first will, after changing, start
the next boiler, and so on. When the start order is changed, all boilers will shut down
and start again if a heating requirement exists.
Parameters
84
Name
Unit
Min
Max
Default
Description
Menu path
Boiler 1 Start
Mode
-
0
5
0
0 = Alternating
1 = Boiler 1 is always first in
the starting order.
2 = Boiler 1 is always
second in the starting order
3 = Boiler 1 is always third in
the starting order
4 = Boiler 1 is always last in
the starting order
5 = Run time controlled
Configuration
HBHB1
Boiler 2 Start
Mode
-
0
5
0
0 = Alternating
1 = Boiler 2 is always first in
the starting order.
2 = Boiler 2 is always
second in the starting order
3 = Boiler 2 is always third in
the starting order
4 = Boiler 2 is always last in
the starting order
5 = Run time controlled
Configuration
HBHB2
Boiler 3 Start
Mode
-
0
5
0
0 = Alternating
1 = Boiler 3 is always first in
the starting order.
2 = Boiler 3 is always
second in the starting order
3 = Boiler 3 is always third in
the starting order
4 = Boiler 3 is always last in
Configuration
HBHB3
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
the starting order 5 = Run
time controlled
Boiler 4 Start
Mode
-
0
5
0
0 = Alternating
1 = Boiler 4 is always first in
the starting order.
2 = Boiler 4 is always
second in the starting order
3 = Boiler 4 is always third in
the starting order
4 = Boiler 4 is always last in
the starting order
5 = Run time controlled
Configuration
HBHB4
Boiler Exchange
Weekday
-
0
7
0
0 = Never
1 = Monday
…
7 = Sunday
Configuration
HB
GeneralType
of Boiler
Ctrl
Boiler Exchange
Hour
-
0
23
10
Configuration
HB
GeneralType
of Boiler
Ctrl
3.7.6 BOILER EXERCISE
The boilers can be exercised for a settable duration on a settable time and weekday. It is also
possible to set the number of weeks between each exercise.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Boiler 1 Exercise
-
0
1
0
0 = Off
1 = On
Configuration
HBHB1
Boiler 1 Exercise
No of Weeks
-
0
52
4
Number of weeks between
exercises.
Configuration
HBHB1
Boiler 1 Exercise
Day
-
1
7
7
Weekday for exercise.
Configuration
HBHB1
Boiler 1 Exercise
Hour
-
0
23
15
Hour for exercise.
Configuration
HBHB1
Exercise time
Boiler 1
min
0
120
5
Duration for exercise.
Configuration
HBHB1
Boiler 2 Exercise
-
0
1
0
0 = Off
1 = On
Configuration
HBHB2
Boiler 2 Exercise
No of Weeks
-
0
52
4
Number of weeks between
exercises.
Configuration
HBHB2
Boiler 2 Exercise
Day
-
1
7
7
Weekday for exercise.
Configuration
HBHB2
Boiler 2 Exercise
Hour
-
0
23
15
Hour for exercise.
Configuration
HBHB2
Exercise time
Boiler 2
min
0
120
5
Duration for exercise.
Configuration
HBHB2
Boiler 3 Exercise
-
0
1
0
0 = Off
1 = On
Configuration
HBHB3
Boiler 3 Exercise
No of Weeks
-
0
52
4
Number of weeks between
exercises.
Configuration
HBHB3
Boiler 3 Exercise
Day
-
1
7
7
Weekday for exercise.
Configuration
HBHB3
Exigo 4.1 manual, revision A
1 = Monday
…
7 = Sunday
1 = Monday
…
7 = Sunday
1 = Monday
…
7 = Sunday
3 Information for the specialist
85
Name
Unit
Min
Max
Default
Description
Menu path
Boiler 3 Exercise
Hour
-
0
23
15
Hour for exercise.
Configuration
HBHB3
Exercise time
Boiler 3
min
0
120
5
Duration for exercise.
Configuration
HBHB3
Boiler 4 Exercise
-
0
1
0
0 = Off
1 = On
Configuration
HBHB4
Boiler 4 Exercise
No of Weeks
-
0
52
4
Number of weeks between
exercises.
Configuration
HBHB4
Boiler 4 Exercise
Day
-
1
7
7
Weekday for exercise.
Configuration
HBHB4
Boiler 4 Exercise
Hour
-
0
23
15
Hour for exercise.
Configuration
HBHB4
Exercise time
Boiler 4
min
0
120
5
Duration for exercise.
Configuration
HBHB4
1 = Monday
…
7 = Sunday
3.7.7 BOILER RETURN TEMPERATURE
To minimize the risk of condensation accumulating in the boiler, it is important that the
temperature is higher than the condensation temperature. This can be solved in two ways:
 Common return temperature
Setting a common return temperature sensor can reduce the risk of condensation. If
the temperature at the sensor falls below a settable value (Block Valves at Low Boiler
Return Temp, default 40°C), the valves of all HS circuits will be forced to close. The
valves will remain closed for as long as the boiler return temperature is lower than the
settable value + hysteresis (settable parameter Block Valves at Low Boiler Return Hyst,
default 10°C).
 Individual return temperatures
Each boiler has a return temperature sensor that controls a mixing valve or a pump.
If the return temperature falls below a settable temperature (Return Temp SetP,
default 40°C):
The mixing valve will be controlled for increased recirculation by a P-controller with
settable P-band (HBx Return Temp P-Band/Hyst, default 10°C ) or
The pump will be switched on with a settable hysteresis (HBx Return Temp PBand/Hyst, default 10°C).
86
3 Information for the specialist
Exigo 4.1 manual, revision A
Parameters
Name
Unit
Min
Max
Default
Description
Block valves at
low boiler return
temp
°C
0
100
40
Configuration
HBGeneral
Block valves at
Llow boiler return
Hyst
°C
1
50
10
Configuration
HBGeneral
HB1 Return
Limitation Type
-
0
1
0
Type of return limitation
Boiler 1.
Menu path
Configuration
HBHB1
0 = Valve
1 = Pump
Return-Pump Ind
(Boiler 1)
-
0
1
0
Type of run indication
0 = Motor protection
1 = Run indication
Configuration
HBBoiler
PumpsHB1
Only visible if HB1 Return
Limitation Type = 1
Delay time of the pump
indication.
Configuration
HBBoiler
PumpsHB1
Return-Pump
Delay (Boiler 1)
s
0
200
10
Return Temp
SetP (Boiler 1)
°C
0
100
40
HBActual/
SetpointHB1
HB1 Return
Temp PBand/Hyst
°C
0
50
10
HBTemp
Control
Boiler 2 Return
Limitation Type
-
0
1
0
Type of return limitation
Boiler 2.
Configuration
HBHB2
0 = Valve
1 = Pump
Return-Pump Ind
(Boiler 2)
-
0
1
0
Type of run indication
0 = Motor protection
1 = Run indication
Configuration
HBBoiler
PumpsHB2
Only visible if HB2 Return
Limitation Type = 1
Delay time of the pump
indication
Configuration
HBBoiler
PumpsHB2
Return-Pump
Delay (Boiler 2)
s
0
200
10
Return Temp
SetP (Boiler 2)
°C
0
100
40
HBActual/
SetpointHB2
Boiler 2 Return
Temp PBand/Hyst
°C
0
50
10
HBTemp
Control
Boiler 3 Return
Limitation Type
-
0
1
0
Type of return limitation
Boiler 3.
Configuration
HBHB3
0 = Valve
1 = Pump
Return-Pump Ind
(Boiler 3)
-
0
1
0
Type of run indication
0 = Motor protection
1 = Run indication
Configuration
HBBoiler
PumpsHB3
Only visible if HB3 Return
Limitation Type = 1
Delay time of the pump
indication.
Configuration
HBBoiler
PumpsHB3
Return-Pump
Delay (Boiler 3)
s
0
200
10
Return Temp
SetP (Boiler 3)
°C
0
100
40
HBActual/
SetpointHB3
Boiler 3 Return
Temp PBand/Hyst
°C
0
50
10
HBTemp
Control
Boiler 4 Return
Limitation Type
-
0
1
0
Type of return limitation
Boiler 4.
Configuration
HBHB4
0 = Valve
1 = Pump
Exigo 4.1 manual, revision A
3 Information for the specialist
87
Name
Unit
Min
Max
Default
Description
Menu path
Return-Pump Ind
(Boiler 4)
-
0
1
0
Type of run indication
Configuration
HBBoiler
PumpsHB4
0 = Motor protection
1 = Run indication
Only visible if HB4 Return
Limitation Type = 1
Delay time of the pump
indication.
Configuration
HBBoiler
PumpsHB4
Return-Pump
Delay (Boiler 4)
s
0
200
10
Return Temp
SetP (Boiler 4)
°C
0
100
40
HBActual/
SetpointHB4
Boiler 4 Return
Temp PBand/Hyst
°C
0
50
10
HBTemp
Control
3.7.8 BOILER PUMP
Each boiler has an individual circulation pump. When there is a heating requirement, and
before a burner can start, its circulation pump will start up and run for 30 seconds (settable),
after which the burner will be permitted to start. When stopping, the burner will stop first, and
then the pump will stop after a set shutdown delay.
Pumps are exercised for 5 minutes at 3 pm daily (settable).
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Run Time Before
Start of HB
s
0
255
30
Runtime of the pump
before the boiler
starts.
ConfigurationHB
Boiler PumpsBoiler
Pump(s)
Run Time After
Stop
s
0
255
30
Extended runtime of
the pump.
ConfigurationHB
Boiler PumpsBoiler
Pump(s)
0
23
15
Start time of the
exercise.
ConfigurationHB
Boiler PumpsBoiler
Pump(s)
Pump Exercise
Hour
Pump Exercise
Time
min
0
255
5
Duration of the
exercise.
ConfigurationHB
Boiler PumpsBoiler
Pump(s)
Pump Type
(Boiler 1)
-
0
1
0
Type of pump
ConfigurationHB
Boiler PumpsHB1
Pump Ind (Boiler
1)
-
0 = Single pump
1 = Double pump
0
1
0
Type of run
indication
ConfigurationHB
Boiler PumpsHB1
0 = Motor protection
1 = Run indication
Pump Delay
(Boiler 1)
s
0
200
10
Delay time of the
pump indication.
ConfigurationHB
Boiler PumpsHB1
Pump Runtime
(Boiler 1)
h
0
1000
100
Runtime of the
pump, only used for
double pumps.
ConfigurationHB
Boiler PumpsHB1
Pump Type
(Boiler 2)
-
0
1
0
Type of pump
ConfigurationHB
Boiler PumpsHB2
Pump Ind (Boiler
2)
-
0 = Single pump
1 = Double pump
0
1
0
Type of run
indication
ConfigurationHB
Boiler PumpsHB2
0 = Motor protection
1 = Run indication
88
Pump Delay
(Boiler 2)
s
0
200
10
Delay time of the
pump indication.
ConfigurationHB
Boiler PumpsHB2
Pump Runtime
(Boiler 2)
h
0
1000
100
Runtime of the
pump, only used for
double pumps.
ConfigurationHB
Boiler PumpsHB2
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Pump Type
(Boiler 3)
-
0
1
0
Pump Ind (Boiler
3)
-
Description
Menu path
Type of pump
ConfigurationHB
Boiler PumpsHB3
0 = Single pump
1 = Double pump
0
1
0
Type of run
indication
ConfigurationHB
Boiler PumpsHB3
0 = Motor protection
1 = Run indication
Pump Delay
(Boiler 3)
s
0
200
10
Delay time of the
pump indication.
ConfigurationHB
Boiler PumpsHB3
Pump Runtime
(Boiler 3)
h
0
1000
100
Runtime of the
pump, only used for
double pumps.
ConfigurationHB
Boiler PumpsHB3
Pump Type
(Boiler 4)
-
0
1
0
Type of pump
ConfigurationHB
Boiler PumpsHB4
Pump Ind (Boiler
4)
-
0 = Single pump
1 = Double pump
0
1
0
Type of run
indication
ConfigurationHB
Boiler PumpsHB4
0 = Motor protection
1 = Run indication
Pump Delay
(Boiler 4)
s
0
200
10
Delay time of the
pump indication.
ConfigurationHB
Boiler PumpsHB4
Pump Runtime
(Boiler 4)
h
0
1000
100
Runtime of the
pump, only used for
double pumps.
ConfigurationHB
Boiler PumpsHB4
3.7.9 TRANSPORT PUMP
The boiler control has a common transport pump. It can be configured either as a single pump
(pump A) or as a double pump (pump A and pump B). The pump will start when a burner is
active, or if the outdoor temperature drops beneath 18°C (settable). Should an alarm occur in
the transport pump, all burners will stop and remain blocked until the alarm has been reset and
acknowledged. If the system has been configured as a double pump, it will automatically switch
from transport pump A to transport pump B and vice versa, should an alarm occur.
It is also possible to use a digital input for pressure/flow indication. When the transport pump is
running, a missing signal will generate an alarm and all boilers will be stopped.
The pump is exercised daily at 3 PM for 5 minutes. If the transport pump has been configured
as a double pump, both pumps are exercised.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Pump Type
-
0
1
0
Type of pump
ConfigurationHB
Boiler
PumpsTransport pump
0 = Single pump
1 = Double pump
Pump Ind
-
0
1
0
Type of run indication
0 = Motor protection
1 = Run indication
ConfigurationHB
Boiler
PumpsTransport pump
Pump Delay
s
0
200
10
Delay time of the
pump indication.
ConfigurationHB
Boiler
PumpsTransport pump
Pump Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHB
Boiler
PumpsTransport pump
Outd Temp for
Start of Pump
°C
-40
50
18
ConfigurationBoiler
Boiler
PumpsTransport Pump
Hyst for
Start/Stop of
Pump
°C
1
20
5
ConfigurationBoiler
Boiler
PumpsTransport Pump
Exigo 4.1 manual, revision A
3 Information for the specialist
89
3.7.10 MANUAL MODE
Setting parameters to manual mode is a very useful feature during commissioning or when
troubleshooting.
Leaving any output in manual control means that the normal control will be suspended.
Therefore, an alarm will be generated as soon as any output is set to any mode other
than Auto.
The following parameters can be set to manual mode for the boilers:
Parameters
90
Name
Unit
Min
Max
Default
Description
Menu path
Manual/Auto
Modulating Boiler
-
0
2
Auto
0 = Manual-Off
1 = Manual
2 = Auto
HBManual/Auto HB
Manual/Auto
Manual Set
%
0
100
-
0-100%
HBManual/Auto HB
HB1 Manual/Auto
Boiler
-
0
3
Auto
0 = Off
1 = Low
2 = High
3 = Auto
HBManual/Auto
HB1
HB1 Manual/Auto
Pump A
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB1
HB1 Manual/Auto
Pump B
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB1
HB1 Manual/Auto
Return Temp
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
HBManual/Auto
HB1
HB1 Manual/Auto
Manual Set
%
0
100
-
0-100%
HBManual/Auto
HB1
HB1 Manual/Auto
Return Temp
Pump
-
0
2
Auto
0 = Off
1 = Pump
2 = Auto
HBManual/Auto
HB1
HB2 Manual/Auto
Boiler
-
0
3
Auto
0 = Off
1 = Low
2 = High
3 = Auto
HBManual/Auto
HB2
HB2 Manual/Auto
Pump A
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB2
HB2 Manual/Auto
Pump B
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB2
HB2 Manual/Auto
Return Temp
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
HBManual/Auto
HB2
HB2 Manual/Auto
Manual SetP
%
0
100
-
0-100%
HBManual/Auto
HB2
HB2 Manual/Auto
Return Temp
Pump
-
0
2
Auto
0 = Off
1 = Pump
2 = Auto
HBManual/Auto
HB2
HB3 Manual/Auto
Boiler
-
0
3
Auto
0 = Off
1 = Low
2 = High
3 = Auto
HBManual/Auto
HB3
HB3 Manual/Auto
Pump A
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB3
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
HB3 Manual/Auto
Pump B
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB3
HB3 Manual/Auto
Return Temp
Valve
-
0
2
Auto
0 = Off
1 = Manual
2 = Auto
HBManual/Auto
HB3
HB3 Manual/Auto
Manual SetP
%
0
100
-
0-100%
HBManual/Auto
HB3
HB3 Manual/Auto
Return Temp
Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB3
HB4 Manual/Auto
Boiler
-
0
3
Auto
0 = Off
1 = Low
2 = High
3 = Auto
HBManual/Auto
HB4
HB4 Manual/Auto
Pump A
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB4
HB4 Manual/Auto
Pump B
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB4
HB4 Manual/Auto
Return Temp
Valve
-
0
2
Auto
0 = Off
HBManual/Auto
HB4
HB4 Manual/Auto
Manual SetP
%
0
100
-
0-100%
HBManual/Auto
HB4
HB4 Manual/Auto
Return Temp
Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
HB4
Manual/Auto
Pump-A
-
0
2
Auto
0 = Off
1 = On
3 = Auto
HBManual/Auto
Transport Pump
Manual/Auto
Pump-B
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HBManual/Auto
Transport Pump
1 = Manual
2 = Auto
3.8 PUMP CONTROL
Function to control a single or a double pump depending on the demand. This chapter is a
general description of the pump control function. Configuration of the pumps are done within
the other functions.
The function provides following features:
 Change between pump A and B after a settable difference of runtime or an alarm at the running
pump
 Alarm can be a signal from a motor-protection or a missing feedback
 Delay time for the error detection
 Feedback can work with one or two inputs
3.8.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for the pump control function.
Digital inputs
Name
Unit
Description
Input
-
Control signal to start / stop the pump
Feedback Pump A
-
Feedback from pump A depending on the type of feedback.
Exigo 4.1 manual, revision A
3 Information for the specialist
91
Name
Unit
Description
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback Pump A
assigned
-
Signal Feedback pump A is configured
Feedback Pump B
-
Feedback from pump A depending on the type of feedback.
Motor protection:
0 = Okay
1 = Error
Run indication:
0 = Off
1 = Running
Feedback Pump B
assigned
-
Signal Feedback pump B is configured
Exercise running
-
Exercise took over the control of the pump
Name
Unit
Description
Pump A
Off/On
Pump B
Off/On
Manual State
Off/On
Alarm Pump A
Off/On
Alarm Pump B
Off/On
Digital outputs
Pump function is in manual mode
3.8.2 PARAMETERS
Name
Unit
Min
Max
Default
Description
Menu path
Pump Type
-
0
1
0
Type of pump
ConfigurationHS
HS1System
0= Single pump
1 = Double pump
Pump Ind
-
0
1
0
Type of feedback for
the load pump.
ConfigurationHS
HS1System
0 = motor protection
1 = run indication
Pump Delay
s
0
200
10
Delay time of the
pump indication.
ConfigurationHS
HS1System
Pump Runtime
h
0
1000
100
Runtime of the pump,
only used for double
pumps.
ConfigurationHS
HS1System
Manual/Auto
Pump
-
0
2
Auto
0 = Off
1 = On
2 = Auto
HS1Manual/Auto
-
0
2
Auto
0 = Off
1= On
2 = Auto
HS1Manual/Auto
PumpA
Manual/Auto
Pump
PumpB
92
3 Information for the specialist
Exigo 4.1 manual, revision A
3.9 GENERAL FUNCTIONS
The general functions menu contains three different items:
 Building inertia
 Split valve
 Priority
3.9.1 BUILDING INERTIA
Every building has the capacity to store energy. The amount of energy that a building can store
is described in the Building inertia parameter. This value is dependent on the construction of
the building (e.g. the thickness of its outdoor walls, insulation, type of windows, etc.).
If Building inertia is activated (value > 0), the outdoor temperature will be delayed by this
value. The delayed outdoor temperature will then be used instead of the real value.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Building inertia
h
0.0
24.0
0.0
Delay of the outdoor
temperature.
Configuration
General Functions
Heating
3.9.2 SPLIT VALVE
The signal of an actuator can be split to two different outputs. The controller output 0 – 50% is
sent to the main output (HSx/HWx actuator) and 50 – 100% is sent to the split output.
Any of the signals HS1, HS2, HS3, HS4, HW1, HW2 or DHS1 can be split in two.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Split valve
-
0
7
0
0 = No split
1 = HS1
2 = HS2
3 = HS3
4 = HS4
5 = HW1
6 = HW2
7 = DHS1
ConfigurationGeneral
Functions Heating
Exigo 4.1 manual, revision A
3 Information for the specialist
93
3.10 PRIORITY
Function for prioritizing the domestic hot water circuits over the heating system circuits or vice
versa. This can be useful for example in a system that is somewhat undersized when it is very
cold outside. The configuration parameters for the Priority function can be found in the
General functions menu.
3.10.1 PRIORITY FUNCTION
The Priority function permits defining if and how the HW circuits should have priority over the
heating systems or the other way around, when heat is required. This function is needed when
the heat producer is unable to simultaneously supply heat to all heat consumers. Therefore, it is
possible to define a reduction of the reduced circuit.
There are two types of priority:
1. If there is a deviation / load in one of the assigned HW’s (parameter HW1 or HW2) the function starts to
reduce the assigned HS’s (parameter HS1, HS2, HS3 and HS4)
2. If there is a deviation in one of the assigned HS’s (parameter HS1, HS2, HS3 or HS4) the function starts
to reduce the assigned HW’s (parameter HW1 and HW2)
The function only works with heating systems which are not in Cooling mode (inputs Cooling
HSx must be 0)
If the function has to reduce something, the timer DelayTime starts.
If the timer DelayTime expires, the function sends out the reduction signals to the HS’s (when
Activation Direction = 1) or to the HW’s (when Activation Direction = 2).
The timer MaxTime starts and the following signals are sent out to the circuits which have to
be reduced:
 Type = 1: Sent out: Status = 1
 Type = 2: Sent out: Status = 2
If the timer MaxTime expires, the system goes back to “parallel” mode (no reduction, Status
HSx /Status HWx = 0) and the timer MaxTime starts again.
If the timer MaxTime expires again, the function starts again from the beginning.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Activation
Direction
-
0
2
0
Activates or
deactivates the
Priority function.
Configuration
General Functions
Priority
0 = Not active
1 = HW’s are
prioritized
2 = HS’s are
prioritized
94
Type
-
1
2
1
1 = Absolute (off)
2 = Reduced NCT
(reduced circuits
works with setpoint
NCT)
Configuration
General Functions
Priority
MaxDeviation
°C
0.1
50.0
2.0
Max deviation to start
the function.
Configuration
General Functions
Priority
Working on HS1
-
0
1
1
HS1 will be influenced
by / will influence the
priority function.
Configuration
General Functions
Priority
Working on HS2
-
0
1
1
HS2 will be influenced
by / will influence the
priority function.
Configuration
General Functions
Priority
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
Working on HS3
-
0
1
1
HS3 will be influenced
by / will influence the
priority function.
Configuration
General Functions
Priority
Working on HS4
-
0
1
1
HS4 will be influenced
by / will influence the
priority function.
Configuration
General Functions
Priority
Working on HW1
-
0
1
1
HW1 will be
influenced by / will
influence the priority
function.
Configuration
General Functions
Priority
Working on HW2
-
0
1
1
HW2 will be
influenced by / will
influence the priority
function.
Configuration
General Functions
Priority
DelayTime
min
0
60
30
Delay of the
reduction.
Configuration
General Functions
Priority
DelayTime Timer
min
The current value of
the DelayTime timer.
Configuration
General Functions
Priority
MaxTime
min
Max time of the
reduction.
Configuration
General Functions
Priority
MaxTime Timer
min
The current value of
the MaxTime timer.
Configuration
General Functions
Priority
0
600
120
3.11 ENERGY/COLD WATER MONITORING
The controller can be configured to monitor the energy or water consumption. Digital pulse
inputs can be configured for monitoring the consumption as well as M-Bus meters.
3.11.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for the energy/cold water monitoring function.
Digital inputs
Name
Unit
Description
Heating system 1
energy pulse
-
Digital pulse input to count the pulses from the meter of HS1.
Heating system 2
energy pulse
-
Digital pulse input to count the pulses from the meter of HS2.
Heating system 3
energy pulse
-
Digital pulse input to count the pulses from the meter of HS3.
Heating system 4
energy pulse
-
Digital pulse input to count the pulses from the meter of HS4.
Domestic hot water 1
energy pulse
-
Digital pulse input to count the pulses from the meter of HW1.
Domestic hot water 2
energy pulse
-
Digital pulse input to count the pulses from the meter of HW2.
District heating energy
pulse
-
Digital pulse input to count the pulses from the meter of DHS1.
Water pulse
-
Digital pulse input to count the pulses from the heat-water-meter.
Energy pulse
-
Digital pulse input to count the pulses from the heat-energy-meter.
Cold water 1 pulse
-
Digital pulse input to count the pulses from the cold water meter 1.
Cold water 2 pulse
-
Digital pulse input to count the pulses from the cold water meter 2.
Electric pulse
-
Digital pulse input to count the pulses from the electrical meter.
Exigo 4.1 manual, revision A
3 Information for the specialist
95
3.11.2 PULSE METER
One digital input can be configured to monitor the energy consumption of each circuit
separately. The pulse constant is settable and the maximum pulse rate is 2 Hz. There are 4
additional inputs to monitor the volume of 3 water meters (Volume pulse, Cold water 1 pulse,
Cold water 2 pulse) and the consumption of electrical energy (Electric pulse).
Parameters
Configuration of the pulse meters is done by setting the right pulse constant of the connected
meters.
Name
Unit
Min
Max
Default
Description
Menu path
Energy Pulse
Heating
kWh/pulse
0
10000
1
Pulse constant of the
heat energy meter.
ConfigurationGeneral
functionsPulse
constants
Volume Pulse
Heating
l/pulse
0
10000
10
Pulse constant of the
heat water meter.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse HS1
kWh/pulse
0
10000
1
Pulse constant of
energy meter Heating
system 1.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse HS2
kWh/pulse
0
10000
1
Pulse constant of
energy meter Heating
system 2.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse HS3
kWh/pulse
0
10000
1
Pulse constant of
energy meter Heating
system 3.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse HS4
kWh/pulse
0
10000
1
Pulse constant of
energy meter Heating
system 4.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse
HW1
kWh/pulse
0
10000
1
Pulse constant of
energy meter
Domestic hot water 1.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse
HW2
kWh/pulse
0
10000
1
Pulse constant of
energy meter
Domestic hot water 2.
ConfigurationGeneral
functionsPulse
constants
Energy Pulse
DHS1
kWh/pulse
0
10000
1
Pulse constant of
energy meter District
heating system.
ConfigurationGeneral
functionsPulse
constants
Electric Meter
kWh/pulse
0
10000
1
Pulse constant of
electricity meter.
ConfigurationGeneral
functionsPulse
constants
Cold Water1
l/pulse
0
10000
10
Pulse constant of
Cold water meter 1.
ConfigurationGeneral
functionsPulse
constants
Cold Water2
l/pulse
0
10000
10
Pulse constant of
Cold water meter 2.
ConfigurationGeneral
functionsPulse
constants
Meter data
Depending on the kind of meter, the following parameters will be calculated by the controller.
The heating power is calculated by measuring the time between energy pulses.
Energy meter
96
Name
Unit
Min
Max
Default
Description
Menu path
HSx/HWx/DHS1
Energy Total
MWh
0
1000000
0
Total energy
consumption, can be
reset.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx
HSx/HWx/DHS1
Energy Today
kWh
-
-
-
24h usage, today.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
HSx/HWx/DHS1
Energy Yesterday
kWh
-
-
-
24h usage, yesterday.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
HSx/HWx/DHS1
Energy D B Y-day
kWh
-
-
-
24h usage, day
before yesterday.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
HSx/HWx/DHS1
Power Instant
kW
-
-
-
Instantaneous power.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
HSx/HWx/DHS1
Power Average
kW
-
-
-
Average of the
instantaneous power
for the last hour.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
HSx/HWx/DSH1
Power Max Aver
kW
-
-
-
Maximum average
value of the
instantaneous power.
Energy/Cold
WaterEnergy
HSx/HWx/DHSx 
Name
Unit
Min
Max
Default
Description
Menu path
Energy Total
MWh
0
1000000
0
Total energy
consumption, can be
reset.
Energy/Cold
WaterHeat
meter
Hot water total
m³
0
1000000
0
Total water
consumption, can be
reset.
Energy/Cold
WaterHeat
meter
Energy Today
kWh
-
-
-
24h usage, today.
Energy/Cold
WaterHeat
meter
Energy Yesterday
kWh
-
-
-
24h usage, yesterday.
Energy/Cold
WaterHeat
meter
Energy D B Y-day
kWh
-
-
-
24h usage, day
before yesterday.
Energy/Cold
WaterHeat
meter
Consumption
Today
l
-
-
-
24h consumption,
today.
Energy/Cold
WaterHeat
meter
Consumption
Yesterday
l
-
-
-
24h consumption,
yesterday.
Energy/Cold
WaterHeat
meter
Consumption D B
Y-day
l
-
-
-
24h consumption, day
before yesterday.
Energy/Cold
WaterHeat
meter
Power
Consumption
Instant
kW
-
-
-
Instantaneous power
consumption.
Energy/Cold
WaterHeat
meter
Power
Consumption
Average
kW
-
-
-
Average of the
instantaneous power
consumption for the
last hour.
Energy/Cold
WaterHeat
meter
Power
Consumption Max
Aver
kW
-
-
-
Maximum average
value of the
instantaneous power
consumption.
Energy/Cold
WaterHeat
meter
Unit
Min
Max
Default
Description
Menu path
Heat meter
Cold water meter
Name
CWx Consump
Total
m³
0
1000000
0
Total water
consumption, can be
reset.
Energy/Cold
WaterCold
Water Meterx
CWx Flow
l/min
-
-
-
Water flow.
Energy/Cold
WaterCold
Water Meterx
Exigo 4.1 manual, revision A
3 Information for the specialist
97
Name
Unit
Min
Max
Default
Description
Menu path
CWx Consump
Today
l
-
-
-
24h usage, today.
Energy/Cold
WaterCold
Water Meterx
CWx Consump
Yesterday
l
-
-
-
24h usage, yesterday.
Energy/Cold
WaterCold
Water Meterx
CWx Consump D
B Y-day
l
-
-
-
24h usage, day
before yesterday.
Energy/Cold
WaterCold
Water Meterx
Lowest CWx
Consump Today
l
-
-
-
Lowest hourly usage
today.
Energy/Cold
WaterCold
Water Meterx
Lowest CWx
Consump
Yesterday
l
-
-
-
Lowest hourly usage
yesterday.
Energy/Cold
WaterCold
Water Meterx
Name
Unit
Min
Max
Default
Description
Menu path
Energy Total
MWh
0
1000000
0
Total energy
consumption, can be
reset.
Energy/Cold
Water
Electricity
Meter
Electricity meter
Alarms
Alarms are generated for the main energy meter and the cold water meters. For more
information about these alarms, see the full alarm list in Appendix D.
Name
Description
Pulse error
If no pulses are detected within a settable time, an alarm is activated. Setting the time to
0 inhibits the alarm function.
High usage
If the daily usage is higher than a settable value an alarm is activated.
3.11.3 M-BUS METER
M-bus meters can be connected to a serial port of the controller via an M-Bus to serial
converter X1176 or to the built-in M-Bus interface if the controller has one.
Up to 7 M-bus meters can be configured to monitor the energy consumption of the Heating
systems, Domestic hot water systems and the District heating system.
In addition, two M-bus meters can be configured to monitor the water consumption, Water
meter 1 and Water meter 2.
Parameters
The following parameters can be used to activate and configure the M-bus meter.
Name
Unit
Min
Max
Default
Description
Menu path
Heat Meter
Off/On
0
1
Off
Activation of the meter
Configuration
0 = Off
1 = On
CommunicationFuncti
on Port M-BusHeat
MeterHSx/HWx/DHSx
Bus-address of the
meter. Default
addresses:
Configuration
Communication
Function Port MBusHeat
MeterHSx/HWx/DHSx
Address
-
0
255
1-7
HS1 = 1
HS2 = 2
HS3 = 3
HS4 = 4
HW1 = 5
HW2 = 6
DHS1 = 7
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3 Information for the specialist
Exigo 4.1 manual, revision A
Name
Unit
Min
Max
Default
Description
Menu path
Interval
-
0
4
1
Interval to read out the
meter:
Configuration
Communication
Function Port MBusHeat
MeterHSx/HWx/DHSx
0 = Always
1 = 15 minutes
2 = 30 minutes
3 = 1 hour
4 = 24 hours
Water Meter
Off/On
0
1
Off
Activation of the meter
0 = Off
1 = On
Address
-
0
255
8-9
Bus-address of the
meter. Default
addresses:
Water meter 1 = 8
Water meter 2 = 9
Interval
-
0
4
1
Interval to read out the
meter:
0 = Always
1 = 15 minutes
2 = 30 minutes
3 = 1 hour
4 = 24 hours
Configuration
Communication
Function Port MBusWater
MeterWater Meterx
Configuration
Communication
Function Port MBusWater
MeterWater Meterx
Configuration
Communication
Function Port MBusWater
MeterWater Meterx
Meter data
Depending on the meter, the following parameters can be read:
Name
Unit
Min
Max
Default
Description
Menu path
Temperature
Supply
°C
-
-
-
Supply temperature.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Temperature
Return
°C
-
-
-
Return temperature.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Delta-T
°C
-
-
-
Temperature difference
betwween supply and
return.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Energy
MWh
-
-
-
Total energy
consumption.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Power
kW
-
-
-
Instantaneous power.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Volume
m³
-
-
-
Total water volume.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Flow
l/min
-
-
-
Water flow.
Energy/Cold
WaterHM
HSx/HWx/DHSx
Alarms
Each M-Bus meter can generate an alarm if the communication is broken. For more information
about these alarms, see the full alarm list in Appendix D.
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3 Information for the specialist
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3.12 PRESSURE CONTROL
The signal of an analogue output can be controlled to maintain a constant pressure.
3.12.1 INPUTS AND OUTPUTS
The following inputs and outputs are used for the pressure control function.
Analogue inputs
Name
Unit
Description
Differential pressure
kPa
Input signal from the pressure sensor
Analogue outputs
Name
Unit
Description
Diff pressure valve
%
Control signal of the frequency converter
Name
Unit
Description
Frequency converter
start
Off/On
Start signal to the frequency converter
Digital outputs
3.12.2 SETPOINT
The Actual/Setpoint menu shows the calculated setpoints.
Parameters
Name
Unit
Min
Max
Default
Description
Menu path
Pressure control
SetP
kPa
0.0
10000.
0
50.0
Setpoint to be
controlled by the PIcontroller.
Pressure
controlActual/
Setpoint
3.12.3 CONTROL PRESSURE
The Control pressure menu permits the configuration of the PI-controller.
A digital output signal can be used to give a start signal to the frequency converter. This output
is enabled as soon as the converter control signal rises above 0.1 V.
Parameters
100
Name
Unit
Min
Max
Default
Description
Menu path
P-band
kPa
1
1000
25
P-band pressure
control.
Pressure control
Control Pressure
I-time
s
0
9999
100
I-time pressure
control.
Pressure control
Control Pressure
Min Output
%
0
100
0
Minimum output of
the PI-controller.
Pressure control
Control Pressure
3 Information for the specialist
Exigo 4.1 manual, revision A
3.13 INPUTS/OUTPUTS
AI/UAI
WAI
DI/UDI
AO
DO
3.13.1 GENERAL
Free configuration
Any control signal can be bound to any input/output. The only restriction is 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.
Analogue inputs, AI/UAI
AI1 Raw:-4.5
Outdoor temp
Compensation: 0.0 °C
Sensor Type: PT1000
All analogue inputs are for PT1000, Ni1000 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 input type is set to 0…10 V, the parameter values that should correspond to the input signal
levels 0 V and 10 V can be set.
Sensor type
0 V = 0
10 V = 100
Wireless inputs, WAI
WAI1 Raw:-4.5
Outdoor temp
Compensation: 0.0 °C
Sign: 0
Bat:Ok
Wireless input signals can be compensated.
The raw value will show the actual, uncompensated input value.
Sign shows the strength of the wireless signal. Bat shows if the battery is low.
Connecting wireless sensors
Menu to connect/disconnect a wireless sensor with the receiver. Select the wireless sensor and
the Action can be changed; No action/Connect/Disconnect. For more information, see
the documentation for the wireless sensors.
Connect/Disconnect
WAI: 1
Action: No action
Digital inputs, DI/UDI
DI1 Status:Off
HS1 Pump A ind
NO/NC:NO
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3 Information for the specialist
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To simplify adaptation to external functions, all digital inputs can be set to be either normally
open, NO, or normally closed, NC.
The digital inputs are set to normally open as default, i.e. if the input is closed, the function
connected to the input 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.
Analogue outputs, AO
AO1 Value: 10.0V
HS1 Actuator
Manual/Auto:Auto
Analogue outputs are 0…10 V DC.
Analogue outputs can be set to run mode Auto, Manual or Off. If they are set to Manual mode,
the AOx value can be changed.
Digital outputs, DO
DO1 Status:On
HS1 Pump A Start
Man/Auto:Auto
Digital outputs can be set to run mode Auto, Manual-On or Manual-Off.
3.14 ALARM SETTINGS
The alarm settings menu has two submenus, Alarm limits and Alarm delay. In these submenus,
the alarm limits and alarm delays are configured for all alarms. They contain limits and delays
for the following alarms:
3.14.1 ALARM LIMITS
 Control deviation HS1, HS2, HS3 and HS4
 Control deviation HW1 and HW2
 High temperature limit HW1 and HW2
 High temperature limit DHS1
 Solar collector max temperature
 Solar collector frost limit
 High temperature buffer tank
 High temperature boiler
 Low temperature boiler
 High supply temperature boiler 1-4
 High water consumption 24 hours
 High water consumption 1 hour
 High energy consumption 24 hours
 Maximum time between pulses
3.14.2 ALARM DELAYS
 Control deviation HS1, HS2, HS3 and HS4
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3 Information for the specialist
Exigo 4.1 manual, revision A
 Control deviation HW1 and HW2
 High temperature limit HW1 and HW2
 High temperature boiler
 Low temperature boiler
 Expansion vessel
 External alarm
3.15 ALARM CONFIGURATION
The Alarm config menu permits configuration of the priority for all alarms. A complete alarm
list can be found in Appendix D. It contains all the default alarm texts and priorities.
3.15.1 PRIORITY
The alarm priority that is shown in the display in the event of an alarm can only be changed
using Exigo tool. For more information, see the Exigo tool manual.
3.15.2 ALARM TEXT
The alarm text that is shown in the display in the event of an alarm can only be changed using
Exigo tool. For more information, see the Exigo tool manual.
3.16 COMMUNICATION
The Communication menu contains settings for Function port 1 and 2, Function port M-Bus
and TCP/IP.
The controller is capable of communication via the BACnet protocol, using either IP or MS/TP
data link formats. In order to connect a controller to a BAS (Building Automation System) via
BACnet/IP, a controller with a TCP/IP port is required. To connect to a BAS via BACnet
MS/TP, a controller with an RS485 communication port is required.
3.16.1 SERIAL PORT 1 AND 2
In a controller with two serial ports, both ports have the same functions. However, they can not
both be configured to have the same function at the same time, except that both can be slaves.
Four different types of communication can be selected:
 Slave
 Expansion unit
 Wireless sensors
 M-Bus
Function port1
Slave

Slave
For connection to Exigo tool or a SCADA system.
Function port1
Slave
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
3 Information for the specialist
103
The default protocol in slave-mode is EXOline. The communication protocol can be changed
to Modbus or BACnet MS/TP.
Modbus
To connnect the controller to a network for Modbus communication, the Modbus-slave must
be activated.
Modbus
communication
Slave, port 1
Not Active
If Modbus communication is activated, you can set the address etc.
Modbus address: 1
Speed: 9600 bps
Two stop bits:No
Parity:No
BACnet MS/TP
To connnect the controller to a BACnet MS/TP network, the BACNet MS/TP of the port must
be activated. The default communication settings upon delivery are as follows:
Speed = 9600 bps
MAC address = 0
Device ID = 2640
Max Master = 127
Function port1

Slave
BACnet MS/TP
communication
port1
Active

Device name
Exigo
MAC
0
Device ID low
2640
Device ID high
0
(x10000)
Speed
9600 bps
Max master address
127
Device name
This is the name of the device, as shown on the BAS when discovering devices.
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3 Information for the specialist
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MAC
The MAC address of the device. This needs to be unique only to the subnet to which the
device is attached.
Device ID
The ID of a device, used to identify it on the BACnet network. To set an ID value of 34600,
the low number would be set to 4600 and the high number to 3.
The ID number must be unique, and can not be duplicated anywhere on the BACnet
network.
Speed
Sets the communication speed of the MS/TP network. This value can be 9600, 19200, 38400
or 76800, but is typically set to 38400 or 76800.
Max master address
The max master address is the MAC address of the highest master device on the BACnet
MS/TP network segment. Setting this number above the highest MAC address will decrease
network performance.
For additional information, see the Exigo PICS document available at
http://www.bacnetinternational.net/btl/index.php?m=133.
Expansion unit
In order to connect additional inputs and outputs to the controller, port 1 or 2 should be set as
an expansion unit (IO-expansion units IO-A15MIXW-3-BEM, IO-A28MIXW-3-BEM, IOV19MIXW-1-BEM or controllers configured as expansion units can be connected). It is possible
to connect two expansion units, giving a maximum number of 28*3 = 84 inputs/outputs. The
expansion units must have the addresses 241:1 and 241:2 respectively (PLA:ELA).
Function port1
Exp Unit

Expansion unit1
None
Expansion unit2
None

To initiate the expanded controllers, select Expansion unit at start-up (see below). 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 inputs/outputs of the expansion units are named
Exp1/Exp2).
Expansion unit1
Expansion unit2
Wireless sensor
In order to connect additional wireless sensors to the controller, port 1 or 2 should be
configured as Wireless sensor. Up to 8 sensors (4 outdoor sensors and 4 room sensors), can be
connected via the wireless receiver. No further settings are necessary to communicate with the
wireless receiver.
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3 Information for the specialist
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After the port is set to Wireless sensor, all inputs are available for configuration in the master
controller under ConfigurationInputs/Outputs (the wireless inputs are named WAI).
M-Bus
M-Bus meters can be connected to to a serial port on the controller (via the M-Bus-converter
X1176) or to the built-in M-Bus-interface (only models with the letter “M” in the article
number).
Function port1
M-Bus

Function Port M-Bus
Active

Up to 9 M-Bus meters can be connected to the controller, 7 heat meters and 2 water meters.

Heat meter
Water meter
HS1
HS2
HS3
HS4
HW1
HW2
DHS1
Heat Meter
Not Active
Address: 0
Interval:Always
Water meter 1
Water meter 2
Intervals
Different intervals are possible to set; Always, 15 min, 30 min, 1h and 24h.
3.16.2 TCP/IP
The Dynamic Host Configuration Protocol (DHCP) is a network protocol used on Internet
Protocol (IP) networks for dynamic distribution of network configuration parameters, such as IP
addresses, DNS servers and other services. The controller can be configured to either obtain an
IP address from a DHCP server (dynamic) or the address can be set manually (static).
Three additional functions can be activated on the network interface:
 BACnet IP communication
 Connection to the Cloud-server
 Modbus TCP
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If you wish to set a static IP address for the controller, enter the IP address you wish to use
along with the subnet mask, gateway address and DNS server address:

TCP/IP
DHCP: Yes
Set static IP
Current IP
-

IP
192.168.001.234
Subnet mask
255.255.255.000
Current subnet mask
Current gateway
-
Default gateway
192.168.001.001
DNS
192.168.001.001
Current DNS
-
BACnet/IP configuration
The BACnet/IP protocol is disabled as default. To enable BACnet/IP communication, change
the setting from Not active to Active. The protocol will then be available for use:

TCP/IP
BACnet/IP
communication
Active

Device name
Exigo
BBMD address
Device ID low
2640
Device ID high
0
(x10000)
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3 Information for the specialist
107
UDP Port Number Low
7808
UDP Port Number High
4
(x10000)
Device name
This is the device name that is shown on the BAS when a device is discovered.
BBMD address
The BBMD address (BACnet/IP Broadcast Management Device) is used for discovering devices
that are attached to different BACnet/IP subnets and separated by an IP router. The address is
entered as host:port, where host can be the host’s name if DNS is configured. If DNS is not
configured, the host address should be entered in the format xxx.xxx.xxx.xxx, followed by the
port number (default setting 47808).
Example: mybbmd:47808 (with DNS configured) or 10.100.50.99:47808
Device ID
The ID of a device, used to identify it on the BACnet network. To set an ID value of 34600,
the low number would be set to 4600 and the high number to 3.
The ID number must be unique, and cannot be duplicated anywhere on the BACnet
network.
CLOUDigo connection
To connect the controller to the Cloud server, this option must be activated.

TCP/IP
CLOUDigo Connection
Active
3.16.3 EXTERNAL DISPLAY
The type of external display, connected to the display port can be set in this menu. Two
options are available:
•
E3-DSP – external text display
•
ED-T7 – external touch display
External display
E3-DSP
When changing the display mode to ED-T7, the controller must be switched off and
back on again for the change to take effect.
3.16.4 M-BUS PORTS
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In units with an M-Bus port, that port can only be used to connect an M-Bus meter. A
maximum of three meters can be connected.
3.16.5 EXPANSION UNITS
A unit with at least one RS485 port is required in order for expansion units to be used.
RS485 ports
The RS485 ports can be set as Slave or Expansion units.
When the port is configured to Slave, it is possible to connect the controller to a SCADA
system (Modbus, EXOline, BACnet), or to alternatively connect the unit to Exigo tool.
When the port is configured to Expansion units, it is possible to connect one or two expansion
units to the port.
It is possible to use an Exigo with display as an expansion unit. However, there is no practical
reason to do so as the expansion unit display cannot be used, nor display any information.
The first time you start up a slave controller without display, an external display is required to
activate the controller as an expansion controller. If the initiation is done via Exigo tool, an
external display is not required.
All configuration takes place using Exigo tool, or via the display on the master controller. All
inputs and outputs can be viewed in the master controller.
3.17 SYSTEM
3.17.1 CHANGE LANGUAGE
Use this menu to change the display language.
Choose language
English
This menu is also directly accessible by holding the [OK] button pressed during powerup or by pressing the [] button four times when the start display is shown.
3.17.2 CHOOSE START SCREEN
There are several different start screens to choose from.
Type 1
The second line shows the date and time.
The third line shows the text HS1.
The fourth line shows the current temperature setpoint and actual values for HS1.
Heating controller
04:09:15 11:28
HS1
Sp:32.8°C Act:33.1°C
Exigo 4.1 manual, revision A
3 Information for the specialist
109
Type 2
The second line shows the date and time.
The third line shows the text HW1.
The fourth line shows the current temperature setpoint and actual values for HW1.
Heating controller
04:09:15 11:28
HW1
Sp:55.0°C Act:54.8°C
Type 3
The second line shows the text HS1/HW1.
The third line shows the current setpoint and actual temperature for HS1.
The fourth line shows the current setpoint and actual temperature for HW1.
Heating controller
HS1/HW1
Sp: 45.5°C Act: 43.8°C
Sp:55.0°C Act:54.8°C
Type 4
The second line shows the current outdoor temperature.
The third line shows the text HS1.
The fourth line shows the current temperature setpoint and actual values for HS1.
Heating controller
Outd temp: 8.2°C
HS1
Sp:32.8°C Act:33.1°C
Type 5
The second line shows the text HS1/HS2.
The third line shows the current setpoint and actual temperature for HS1.
The fourth line shows the current setpoint and actual temperature for HS2.
Heating controller
HS1/HS2
Sp:34.0°C Act:34.2°C
Sp:42.0°C Act:41.5°C
Type 6
The second line shows the date and time.
Heating controller
04:09:15 11:28
Type 7
The second line shows the date and time.
The third line shows the actual value for the boiler.
Heating controller
04:09:15 11:28
Boiler Act:57.8°C
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Type 8
The second line shows the date and time.
The third line shows the actual value for the boiler.
The fourth line shows the current outdoor temperature.
Heating controller
04:09:15 11:28
Boiler Act:57.8°C
Outd temp: 8.2°C
3.17.3 AUTOMATIC SUMMER/WINTER TIME ADJUSTMENT
The internal clock is normally configured for automatic summer/winter time adjustment. The
function can be disabled in this menu. When enabled, the clock will be advanced one hour at
02:00 am the last Sunday of March and adjusted back one hour at 03:00 am the last Sunday of
October.
Automatic
Summer/Winter Time
Change-Over
On
3.17.4 ADDRESS
The controller uses the below addresses when connecting to Exigo tool and when multiple
controllers are connected in a network. Exigo tool normally uses the addresses below, so if an
address is changed, the new address must also be entered in Exigo tool. If several controllers are
connected in a network, all the units must have the same PLA address, but each unit must have
a unique ELA address.
Address:
PLA: 254
ELA: 254
3.17.5 ADDRESS FOR REMOTE COMMUNICATION
If multiple controller units are connected in a network, it is possible to remote control a unit in
the network from a unit with display. This is done by entering the address of the unit you wish
to remote control in the unit with display. This function is aborted by pressing the buttons [],
[OK] and [] simultaneously.
Address for remote
communication
(PLA:ELA) : 00:00
3.17.6 AUTOMATIC LOGOFF
If the access level is set to Operator or Admin, the user will automatically be logged off after a
set time of inactivity. The time is settable in units of 5 seconds. Default 60 units = 5 minutes.
The automatic logoff can be disabled, see Chapter 2, Information for the end user.
Time before user
automatically is
logged off: 60
(unit 5 s)
Exigo 4.1 manual, revision A
3 Information for the specialist
111
3.18 CHANGING THE BATTERY
The controller has an internal battery to ensure the operation of the memory and real-time
clock in the event of a power failure. When the alarm ”Internal Battery” is activated and the
battery LED lights up red (24 V models), the battery has become too weak and needs to be
changed. Nonetheless, due to a backup capacitor, the controller will function at least 10
minutes without power supply.
Changing the battery, as well as dismantling and opening the unit requires knowledge of
proper ESD protection. Therefore, this should be handled by skilled service personnel.
An earthed wristband must be used during this procedure.
3.18.1 24 V MODELS
1. 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 cover outwards.
2. Grip the battery firmly with your fingers and lift it upwards until it rises from its holder.
3. Press the new battery firmly down into place.
For proper functionality, ensure that the polarity is correct. The replacement battery
must be of type CR2032.
3.18.2 230 V MODELS
The 230 models should not be opened by the user. Please contact Regin if you need to change
the battery.
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Exigo 4.1 Manual, Revision A
4. INFORMATION FOR THE INSTALLER
4.1 INSTALLATION
The controller 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.
The 230 V models can also be mounted directly on a wall.
4.1.1 TERMINALS
Terminal positions 24 V models
Terminal positions 230 V models
* depending on the model
Exigo 4.1 Manual, Revision A
113
4.1.2 WIRING
Before removing the controller from the terminal block, be sure to switch off the
supply voltage.
It is important to ensure that the wiring is performed correctly and in accordance with
the instructions given in this manual.
Wiring examples
The pictures below show examples for Exigo Ardo.
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Exigo 4.1 Manual, Revision A
Inputs and outputs 24 V models (Exigo Ardo)
There is a list of input and outputs in Appendix C that can be a handy instrument to help you
keep track of which inputs and outputs you need to configure.
Analogue inputs
Analogue inputs must refer to an Agnd terminal.
Analogue inputs can, depending on the configuration, be used for either PT1000/Ni1000
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.
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/Ni1000 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.
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 a Agnd terminal.
All analogue outputs can be individually set to any one of the following output signals:
0…10 V DC
2…10 V DC
10…0 V DC
10…2 V DC
If the controller and its connected actuators share the same transformer, it is essential
that the same transformer pole is used as reference for all the equipment. The
equipment may otherwise not function as intended and may also suffer 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 exceed 8 A.
A number of different wiring alternatives are possible depending on the type of supply voltage
to the controller and the relay type.
Exigo 4.1 Manual, Revision A
115
24 V AC supply and 24 V AC relays
L
2424
VAC
V AC
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
+
116
-
L
2424
VAC
V AC
N
+
-
+
-
+
-
G
G0
10
11
12
Exigo 4.1 Manual, Revision A
24 V24
ACVAC
24 V DC supply and 24 V AC relays
L N
24 V DC
+
-
G
G0
10
11
12
Inputs and outputs 230 V models (Exigo Vido)
There is a list of input and outputs in Appendix C that can be a handy instrument to help you
keep track of which inputs and outputs you need to configure.
Analogue inputs
Analogue inputs must refer to a ┴ terminal.
Analogue inputs are intended for use with PT1000/Ni1000 sensors as a temperature sensor.
Digital inputs
Digital inputs must refer to a ┴ terminal.
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 be used with PT1000/Ni1000
temperature sensors.
A universal input configured as an analogue input must refer to a ┴ terminal.
A universal input configured as a digital input must refer to a ┴ terminal.
Universal analogue
Universal analogue I/O:s can be configured as either analogue inputs or analogue outputs.
Analogue outputs must refer to a ┴ terminal. The outputs can be individually set to any one of
the following output signals:
0…10 V DC
2…10 V DC
10…0 V DC
10…2 V DC
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117
Digital outputs
The relays are voltage-free and must receive power from a single pole for each relay.
M-Bus meters
This function requires a controller with an M-Bus port. Up to three meters can be connected
(heat, energy or water).
The following variables can be read from the meters:
 Supply temperature
 Return temperature
 Delta temperature
 Energy
 Effect
 Volume
 Flow
Expansion units EXOline
The communication between master and expansion units takes place via EXOline. The slave
units will be assigned the address 241:1 and 241:2 during initialisation (PLA:ELA).
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Exigo 4.1 Manual, Revision A
4.2 COMMISSIONING
Before the controller can be used, inputs and outputs as well as a number of parameters must
be configured.
All commissioning can be performed using the display and buttons on the controller, or by
using an external display unit.
The easiest way however, is to configure the controller by using Exigo tool, that can be
downloaded from www.regincontrols.com.
4.2.1 CONFIGURATION USING EXIGO TOOL
Exigo tool is a PC-based configuration program developed to simplify the commissioning of the
Exigo controller series.
When using Exigo tool, the whole configuration and all settings can be done on the computer
and then be uploaded to the controller. An infinite number of configurations can be stored in
the computer memory for later use.
A communication cable is required in order to upload the configuration to the controller. The
controller must also be powered up and the application selected in order for it to be configured.
Predefined configurations can be downloaded as htc-files from Regin’s website,
http://www.regincontrols.com. These htc-files can be opened in the tool and synchronized to
the controller.
For more information, see the Exigo tool manual.
4.2.2 CONFIGURATION USING THE BUILT-IN DISPLAY OR
AN EXTERNAL DISPLAY
1. Power up the controller.
2. On delivery, the heating application is activated. If you need to change the active application, see section
Loading the application below.
3. Log on as Admin.
4. Configure all required inputs and outputs. Keep track of which inputs and outputs you will need for the
functions you choose to activate. There is a complete list of input and output functions in Appendix C.
5. Configure all needed functions. See Chapter 3, Information for the Specialist.
6. Set the time, date and configure the time schedule/holiday schedule in the Time Settings menu.
7. Set all the control setpoints for the configured functions.
Loading the application
Reset the controller by pressing the reset button, using for example a paper clip. The initial
screen shows the factory application. It contains options for setting up the controller before
start-up. Press the [] button to select application:
Application
System
Communication
Time/Date
Inputs/Outputs
Use the [] and [] buttons to move the cursor in the left side of the display to the desired
function. Select “Application” and press the [] button.
Heating 4.1
Expansion unit 1
Expansion unit 2
Move the cursor to the desired application and press the [] button.
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119
Title:
Heating 4.1
Activate? Yes
Press the [OK] button and change ”No” into ”Yes”, then press [OK] again.
The most recently loaded application will now be entered into memory. This will take approx.
30 seconds.
To change language, press the [] button 3 times when the start screen for selecting an
application is displayed.
Configuring the inputs and outputs
On delivery, there is no configured inputs and outputs.
Use the [] and [] buttons to move the cursor in the left side of the display to the desired
function. Select “Configuration” and press the [] button.
Time Settings
Alarm Events
Inputs/Outputs
Configuration
Use the [] and [] buttons to move the cursor in the left side of the display to the desired
function. Select “Inputs/Outputs” and press the [] button.
Alarm Settings
Inputs/Outputs
General Functions
Alarm Config
Move the cursor to the type of IO you want to change and press the [] button.
AI/UAI
DI/UDI
AO
DO
The next display shows the current values of the selected type of IO. The example shows the
analogue inputs.
AI1 17.6 UAI1 12.1
AI2 23.1 UAI2 27.3
AI3 45.8 UAI3 -5.1
AI4
Press the [] button to show the configuration of AI’s.
AI1 Raw: 17.6
Not Used
Compensation: 0.0°C
Sensor Type:PT1000
Press the [OK] button and change “Not Used” to the function you want to select.
Press the [OK] button again to choose the selected function and jump to the value of the
compensation. Finish the configuration of the AI by selecting the type of sensor.
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Exigo 4.1 Manual, Revision A
APPENDIX A TECHNICAL DATA
EXIGO ARDO
Supply voltage
24 V AC ± 15%, 50…60 Hz or 21…36 V AC
Power consumption
See Model overview in Appendix B
Ambient temperature
0…50 °C
Ambient humidity
Max. 95 % RH
Storage temperature
-20…70 °C
Protection class
IP20
Connection
Disconnectable terminal strips, 4 mm2
Memory backup
Built-in long life battery gives long backup time of all settings
incl. real time
Display
Backlit LCD, 4 rows of 20 characters
Mounting
DIN-rail or cabinet
Casing
Standard Euronorm (8.5 modules wide)
Dimensions (WxHxD)
149 x 121 x 60 mm incl. terminals
Battery type
CR2032 replaceable Lithium cell
Battery life
Min. 5 years
Operating system
EXOrealC
COMMUNICATION PORTS
TCP/IP
EXOline, Modbus, BACnet/IP, CLOUDigo
RS485
EXOline, Modbus, BACnet MS/TP
M-Bus
M-Bus communication
INPUTS & OUTPUTS
Analogue inputs (AI)
For PT1000 sensors (accuracy ± 0.4 °C) or 0…10 V DC
(accuracy ± 0.15 % of full output signal). 12 bit resolution in the
A/D conversion.
Digital inputs (DI)
For potential-free contacts
Universal inputs (UI)
Can be set to act as either analogue inpue or digital input with
specifications as above
Analogue outputs (AO)
0…10 V DC, 1 mA, short-circuit protected
Digital outputs (DO)
Mosfet outputs, 24 V AC or DC, 2 A continuous. Max. 8 A in
total.
Exigo 4.1 Manual, Revision A
121
EXIGO VIDO
Supply voltage
85…265 V AC, 50/60 Hz
Power consumption
See Model overview in Appendix B
Ambient temperature
0…50 °C
Ambient humidity
Max. 95 % RH
Storage temperature
-20…70 °C
Protection class
IP20, IP40 when mounted in capbinet
Memory backup
Built-in long life battery gives long backup time of all settings
incl. real time
Display
Backlit LCD, 4 rows of 20 characters
Mounting
DIN-rail, cabinet or on wall
Dimensions (WxHxD)
146.7 x 97.6 x 76.0 mm incl. terminals
Battery type
CR2032 replaceable Lithium cell
Battery life
Min. 8 years
Operating system
EXOrealC
COMMUNICATION PORTS
TCP/IP
EXOline, Modbus, BACnet/IP, CLOUDigo
RS485
EXOline, Modbus, BACnet MS/TP
M-Bus
M-Bus communication
INPUTS & OUTPUTS
122
Analogue inputs (AI)
For PT1000 sensors. 12 bit resolution in the A/D conversion.
Digital inputs (DI)
For potential-free contacts
Universal inputs (UI)
Can be set to act as either analogue inpue or digital input with
specifications as above
Analogue inputs/outputs (UA)
Configurable as output (0…10 V DC, 2…10 V DC, 10…0 V DC
or 10…2 V DC, 8 bit D/A short-circuit protected) or input (0…10
V DC)
Digital outputs (DO)
7x relay, 230 V AC, 1 A load per relay, max 7 A total
Exigo 4.1 Manual, Revision A
APPENDIX B MODEL OVERVIEW
Name
Voltage
Description
IO-A15MIXW-3-BEM
24 V
Ardo Expansion unit with one RS485 port
24 V
Ardo Controller with one TCP/IP port
24 V
Ardo Controller with one RS485 port and one TCP/IP port
HCA283DW-3
24 V
Ardo Controller with two RS485 ports and one TCP/IP port
HCA283DWM-3
24 V
Ardo Controller with one RS485 port, one M-Bus port and one
TCP/IP port
HCV190D-1
230 V
Vido Controller without communication ports
IO-V19MIXW-1-BEM
230 V
Vido Expansion unit with one RS485 port
HCV192DW-1
230 V
Vido Controller with one RS485 port and one TCP/IP port
HCV193DWM-1
230 V
Vido Controller with one RS485 port, one M-Bus port and one
TCP/IP port
230 V
Vido Controller with one TCP/IP port
IO-A28MIXW-3-BEM
HCA151DW-3
HCA281DW-3
HCA152DW-3
HCA282DW-3
HCV203DWM-1
HCV191DW-1
Name
AI
DI
UI*
AO
DO
RS485
ports
TCP/IP
ports
M-Bus
ports
Display
Power
consumption
(VA)
IO-A15MiXW-3-BEM
4
4
-
3
4
1
1
-
-
5
HCA151DW-3
4
4
-
3
4
-
1
-
•
9
HCA152DW-3
4
4
-
3
4
1
1
-
•
9
IO-A28MIXW-3-BEM
4
8
4
5
7
1
1
-
-
5
HCA281DW-3
4
8
4
5
7
-
1
-
•
9
HCA282DW-3
4
8
4
5
7
1
1
-
•
9
HCA283DW-3
4
8
4
5
7
2
1
-
•
9
HCA283DWM-3
4
8
4
5
7
1
1
1
•
9
HCV190D-1
4
2
4
2**
7
-
-
-
•
7.5
IO-V19MIXW-1-BEM
4
2
4
2**
7
1
1
-
-
7.5
HCV192DW-1
4
2
4
2**
7
1
1
-
•
10
HCV193DWM-1
4
2
4
2**
7
1
1
1
•
10.5
HCV203DWM-1
4
2
4
2**
7
1
1
1
•
11
HCV191DW-1
4
2
4
2**
7
-
1
-
•
9.5
* Universal inputs can be configured to function as either analogue or digital outputs.
** Universal analogue that can be configured to function as either analogue inputs or analogue
outputs (0…10 V DC).
Exigo 4.1 Manual, Revision A
123
APPENDIX C INPUT AND OUTPUT LISTS
The lists below are intended to be used as a memory aid during configuration, in order to help
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 Exigo tool and the right column shows the text displayed in
the controller.
Analogue inputs

124
Description
Exigo Tool name
Display name
Inactive input
Not used
Not used
Outdoor temperature sensor
Outdoor temp
Outdoor temp
Outdoor temperature sensor, HS2
Outdoor temp HS2
Outdoor temp HS2
Outdoor temperature sensor, HS3
Outdoor temp HS3
Outdoor temp HS3
Outdoor temperature sensor, HS4
Outdoor temp HS4
Outdoor temp HS4
Supply temperature, heating system 1
HS1, supply temp
HS1 supply temp
Room temperature, heating system 1
HS1, room temp
HS1 room temp
Return temperature, heating system 1
HS1, return temp
HS1 return temp
Universal limitation temperature, HS1
HS1, univ limit temp
HS1 univ limit temp
Universal limitation shift temperature, HS1
HS1, univ limit shift temp
HS1 univ limit shift temp
Relative humidity sensor, HS1
HS1, RH
HS1 RH
Supply temperature, heating system 2
HS2, supply temp
HS2 supply temp
Room temperature, heating system 2
HS2, room temp
HS2 room temp
Return temperature, heating system 2
HS2, return temp
HS2 return temp
Universal limitation temperature, HS2
HS2, univ limit temp
HS2 univ limit temp
Universal limitation shift temperature, HS2
HS2, univ limit shift temp
HS2 univ limit shift temp
Relative humidity sensor, HS2
HS2, RH
HS2 RH
Supply temperature, heating system 3
HS3, supply temp
HS3 supply temp
Room temperature, heating system 3
HS3, room temp
HS3 room temp
Return temperature, heating system 3
HS3, return temp
HS3 return temp
Universal limitation temperature, HS3
HS3, univ limit temp
HS3 univ limit temp
Universal limitation shift temperature, HS3
HS3, univ limit shift temp
HS3 univ limit shift temp
Relative humidity sensor, HS3
HS3, RH
HS3 RH
Supply temperature, heating system 4
HS4, supply temp
HS4 supply temp
Room temperature, heating system 4
HS4, room temp
HS4 room temp
Return temperature, heating system 4
HS4, return temp
HS4 return temp
Universal limitation temperature, HS4
HS4, univ limit temp
HS4 univ limit temp
Universal limitation shift temperature, HS4
HS4, univ limit shift temp
HS4 univ limit shift temp
Relative humidity sensor, HS4
HS4, RH
HS4 RH
Domestic hot water circuit 1, supply
temperature
HW1, supply temp
HW1 supply temp
Tank temperature middle, HW1
HW1, tank middle temp
HW1 tank middle temp
Tank temperature bottom, HW1
HW1, tank bottom temp
HW1 tank bottom temp
Solar tank temperature, HW1
HW1, solar tank temp
HW1 solar tank temp
Limitation temperature, HW1
HW1, limit temp
HW1 limit temp
Circulation return temperature, HW1
HW1, circ return temp
HW1 circ return temp
External setpoint, HW1
HW1, external setpoint
HW1 external setp
Domestic hot water circuit 2, supply
temperature
HW2, supply temp
HW2 supply temp
Exigo 4.1 Manual, Revision A

Description
Exigo Tool name
Display name
Tank temperature middle, HW2
HW2, tank middle temp
HW2 tank middle temp
Tank temperature bottom, HW2
HW2, tank bottom temp
HW2 tank bottom temp
Solar tank temperature, HW2
HW2, solar tank temp
HW2 solar tank temp
Limitation temperature, HW2
HW2, limit temp
HW2 limit temp
Circulation return temperature, HW2
HW2, circ return temp
HW2 circ return temp
External setpoint, HW2
HW2, external setpoint
HW2 external setp
Boiler supply temperature
Boiler supply temp
Boiler supply temp
Boiler return temperature
Boiler return temp
Boiler return temp
Supply temperature for boiler 1
Boiler 1, supply temp
Boiler1 supply temp
Return temperature for boiler 1
Boiler 1, return temp
Boiler1 return temp
Supply temperature for boiler 2
Boiler 2, supply temp
Boiler2 supply temp
Return temperature for boiler 2
Boiler 2, return temp
Boiler2 return temp
Supply temperature for boiler 3
Boiler 3, supply temp
Boiler3 supply temp
Return temperature for boiler 3
Boiler 3, return temp
Boiler3 return temp
Supply temperature for boiler 4
Boiler 4, supply temp
Boiler4 supply temp
Return temperature for boiler 4
Boiler 4, return temp
Boiler4 return temp
District Heating System 1, supply
temperature
DHS1, supply temp
DHS1 supply temp
District Heating System 1, return
temperature
DHS1, return temp
DHS1 return temp
District Heating System 1, external demand
DHS1, external demand
DHS1 external demand
Tank temperature top, HP1
HP1, tank temp top
HP1 tank temp top
Tank temperature bottom, HP1
HP1, tank temp bottom
HP1 tank temp bottom
External demand, HP1
HP1, external demand
HP1 external demand
Solar collector temperature, Solar
Solar, collector temp
Solar collector temp
Solar return temperature, Solar
Solar, return temp
Solar return temp
Heating primary, supply temperature
HP supply temp
HP supply temp
Heating primary, return temperature
HP return temp
HP return temp
Cooling primary, supply temperature
CP supply temp
CP supply temp
Cooling primary, return temperature
CP return temp
CP return temp
Input for receiving current heat demand from
another Exigo (0…10 V corresponds to
0…100 degrees)
Heat demand temp
Heat demand temp
Wind-speed transmitter, 0…10 V DC
Wind speed
Wind speed
Differential pressure transmitter, 0…10 V DC
Diff pressure
Diff Pressure
Extra temperature sensor 1
Extra temp sensor 1
Extra temp sensor1
Extra temperature sensor 2
Extra temp sensor 2
Extra temp sensor2
Extra temperature sensor 3
Extra temp sensor 3
Extra temp sensor3
Extra temperature sensor 4
Extra temp sensor 4
Extra temp sensor4
Extra temperature sensor 5
Extra temp sensor 5
Extra temp sensor5
Description
Exigo Tool name
Display name
Inactive input
Not used
Not used
HS1 main switch
HS1, main switch
HS1 main switch
Activates HS1 comfort mode
HS1, Extended running
HS1 extended running
HS1, Change-over to cool-mode
HS1, change-over
HS1 change-over
HS1, release of cool-mode
HS1, start cool
HS1 start cool
On/Off-function for the valve, 0 or 100%,
HS1
HS1, thermostat
HS1 thermostat
Run indication/alarm circulation pump, P1AHS1
HS1, pump A indication
HS1 pump A ind
Digital inputs

Exigo 4.1 Manual, Revision A
125

126
Description
Exigo Tool name
Display name
Run indication/alarm circulation pump, P1BHS1
HS1, pump B indication
HS1 pump B ind
HS1, energy pulse
HS1, energy pulse
HS1 energy pulse
HS2 main switch
HS2, main switch
HS2 main switch
Activates HS2 comfort mode
HS2, Extended running
HS2 extended running
HS2, Change-over to cool-mode
HS2, change-over
HS2 change-over
HS2, release of cool-mode
HS2, start cool
HS2 start cool
On/Off-function for the valve, 0 or 100%,
HS2
HS2, thermostat
HS2 thermostat
Run indication/alarm circulation pump, P1AHS2
HS2, pump A indication
HS2 pump A ind
Run indication/alarm circulation pump, P1BHS2
HS2, pump B indication
HS2 pump B ind
HS2, energy pulse
HS2, energy pulse
HS2 energy pulse
HS3 main switch
HS3, main switch
HS3 main switch
Activates HS3 comfort mode
HS3, Extended running
HS3 extended running
HS3, Change-over to cool-mode
HS3, change-over
HS3, change-over
HS3, release of cool-mode
HS3, start cool
HS3 start cool
On/Off-function for the valve, 0 or 100%,
HS3
HS3, thermostat
HS3 thermostat
Run indication/alarm circulation pump, P1AHS3
HS3, pump A indication
HS3 pump A ind
Run indication/alarm circulation pump, P1BHS3
HS3, pump B indication
HS3 pump B ind
HS3, energy pulse
HS3, energy pulse
HS3 energy pulse
HS4 main switch
HS4, main switch
HS4 main switch
Activates HS4 comfort mode
HS4, Extended running
HS4 extended running
HS4, Change-over to cool-mode
HS4, change-over
HS4, change-over
HS4, release of cool-mode
HS4, start cool
HS4 start cool
On/Off-function for the valve, 0 or 100%,
HS4
HS4, thermostat
HS4 thermostat
Run indication/alarm circulation pump, P1AHS4
HS4, pump A indication
HS4 pump A ind
Run indication/alarm circulation pump, P1BHS4
HS4, pump B indication
HS4 pump B ind
HS4, energy pulse
HS4, energy pulse
HS4 energy pulse
HW1 main switch
HW1, main switch
HW1 main switch
HW1 flow switch for electric heater
HW1, flow switch
HW1 flow switch
Run indication/alarm tank pump A, HW1
HW1, tankpump A indication
HW1 tankpump A ind
Run indication/alarm tank pump B, HW1
HW1, tankpump B indication
HW1 tankpump B ind
Run indication/alarm exchanger pump A,
HW1
HW1, exchangerpump A
indication
HW1 exchangerpump A ind
Run indication/alarm exchanger pump B,
HW1
HW1, exchangerpump B
indication
HW1 exchangerpump B ind
Run indication/alarm circulation pump A,
HW1
HW1, circulationpump A
indication
HW1 circulationpump A ind
Run indication/alarm circulation pump B,
HW1
HW1, circulationpump B
indication
HW1 circulationpump B ind
HW1, energy pulse
HW1, energy pulse
HW1 energy pulse
HW1, manual start of thermal disinfection
HW1, start thermal disinfection
HW1 start thermal disinfection
HW2 main switch
HW2, main switch
HW2 main switch
HW2 flow switch for electric heater
HW2, flow switch
HW2 flow switch
Run indication/alarm tank pump A, HW2
HW2, tankpump A indication
HW2 tankpump A ind
Run indication/alarm tank pump B, HW2
HW2, tankpump B indication
HW2 tankpump B ind
Run indication/alarm exchanger pump A,
HW2
HW2, exchangerpump A
indication
HW2 exchangerpump A ind
Exigo 4.1 Manual, Revision A

Description
Exigo Tool name
Display name
Run indication/alarm exchanger pump B,
HW2
HW2, exchangerpump B
indication
HW2 exchangerpump B ind
Run indication/alarm circulation pump A,
HW2
HW2, circulationpump A
indication
HW2 circulationpump A ind
Run indication/alarm circulation pump B,
HW2
HW2, circulationpump B
indication
HW2 circulationpump B ind
HW2, energy pulse
HW2, energy pulse
HW2 energy pulse
HW2, manual start of thermal disinfection
HW2, start thermal disinfection
HW2 start thermal disinfection
Run indication/alarm for boiler 1
Boiler 1 indication
Boiler 1 ind
Run indication/alarm for pump A/boiler 1
Boiler 1 pump A indication
Boiler1 pump A
Run indication/alarm for pump B/boiler 1
Boiler 1 pump B indication
Boiler1 pump B
Run indication/alarm for return pump/boiler 1
Boiler 1 return pump indication
Boiler 1 return pump indication
Run indication/alarm for boiler 2
Boiler 2 indication
Boiler 2 ind
Run indication/alarm for pump A/boiler 2
Boiler 2 pump A indication
Boiler2 pump A
Run indication/alarm for pump B/boiler 2
Boiler 2 pump B indication
Boiler2 pump B
Run indication/alarm for return pump/boiler 2
Boiler 2 return pump indication
Boiler 2 return pump indication
Run indication/alarm for boiler 3
Boiler 3 indication
Boiler 3 ind
Run indication/alarm for pump A/boiler 3
Boiler 3 pump A indication
Boiler3 pump A
Run indication/alarm for pump B/boiler 3
Boiler 3 pump B indication
Boiler3 pump B
Run indication/alarm for return pump/boiler 3
Boiler 3 return pump indication
Boiler 3 return pump indication
Run indication/alarm for boiler 4
Boiler 4 indication
Boiler 4 ind
Run indication/alarm for pump A/boiler 4
Boiler 4 pump A indication
Boiler4 pump A
Run indication/alarm for pump B/boiler 4
Boiler 4 pump B indication
Boiler4 pump B
Run indication/alarm for return pump/boiler 4
Boiler 4 return pump indication
Boiler 4 return pump indication
Run indication/alarm for the transport pump
A
Transport pump A indication
Transport pump A ind
Run indication/alarm for the transport pump
B
Transport pump B indication
Transport pump B ind
Boiler alarm
Boiler alarm
Boiler alarm
Pressure switch, expansion vessel
Expansion vessel
Expansion vessel
Boiler control external stop
External stop boiler 1-4
External stop
Pressure/flow alarm for the boiler circuit
Boiler pressure/flow error
Boiler pres/flow err
DHS1 main switch
DHS1, main switch
DHS1 main switch
Run indication/alarm circulation pump A,
DHS1
DHS1, pump A indication
DHS1 pump A ind
Run indication/alarm circulation pump B,
DHS1
DHS1, pump B indication
DHS1 pump B ind
DHS1, energy pulse
DHS1, energy pulse
DHS1 energy pulse
HP1 main switch
HP1, main switch
HP1 main switch
Run indication/alarm load pump A, HP1
HP1, load pump A indication
HP1 load pump A ind
Run indication/alarm load pump B, HP1
HP1, load pump B indication
HP1 load pump B ind
Solar main switch
Solar, main switch
Solar main switch
Run indication/alarm solar pump A
Solar, pump A indication
Solar pump A ind
Run indication/alarm solar pump B
Solar, pump B indication
Solar pump B ind
Start/Stop HS
Unit shutdown
Unit shutdown
Acknowledge all alarms
Alarm acknowledgement
Alarm acknowledgement
External alarm
External alarm
External alarm
Volume pulses, hot water usage
Water pulse
Water pulse
Energy pulses, heating usage
Energy pulse
Energy pulse
Volume pulse, cold water usage 1
CW1 pulse
CW1 pulse
Volume pulse, cold water usage 2
CW2 pulse
CW2 pulse
Energy pulse, electricity meter
Electric pulse
Electric pulse
Run indication/alarm, frequency converters
for pressure control
Frequency converter
Frequency converter
Exigo 4.1 Manual, Revision A
127
Universal inputs
Universal inputs on the controller can be individually configured as either analogue inputs,
using any of the analogue input signals above, or as digital inputs, using any of the digital inputs
above.
Analogue outputs

Description
Exigo Tool name
Display name
Inactive output
Not used
Not used
Valve actuator, heating system 1, HS1
HS1, actuator
HS1 actuator
Valve actuator, heating system 2, HS2
HS2, actuator
HS2 actuator
Valve actuator, heating system 3, HS3
HS3, actuator
HS3 actuator
Valve actuator, heating system 4, HS4
HS4, actuator
HS4 actuator
Valve actuator, hot water circuit 1, HW1
HW1, actuator
HW1 actuator
Valve actuator, hot water circuit 2, HW2
HW2, actuator
HW2 actuator
Burner, boiler 1
Boiler 1, modulating vessel
HB1 mod vessel
Burner, boiler 2
Boiler 2, modulating vessel
HB2 mod vessel
Burner, boiler 3
Boiler 3, modulating vessel
HB3 mod vessel
Burner, boiler 4
Boiler 4, modulating vessel
HB4 mod vessel
Valve actuator, return valve boiler 1
Boiler 1, return temp actuator
HB1 ret temp valve
Valve actuator, return valve boiler 2
Boiler 2, return temp actuator
HB2 ret temp valve
Valve actuator, return valve boiler 3
Boiler 3, return temp actuator
HB3 ret temp valve
Valve actuator, return valve boiler 4
Boiler 4, return temp actuator
HB4 ret temp valve
Valve actuator, district heating circuit 1,
DHS1
DHS1, actuator
DHS1 actuator
Solar actuator
Solar pump/valve control
Solar actuator
Highest setpoint for the configured circuits
(0...100 degrees corresponds to 0...10 V)
Heat demand temp
Heat demand
Frequency converter, pressure control
Diff pressure, valve
Pressure valve
Sequential control of actuator
Seq control of actuator HS1DHS1
Seq ctrl of actuator
Description
Exigo Tool name
Display name
Inactive output
Not used
Not used
Start/stop pump, P1A-HS1
HS1, pump A start
HS1 pump A start
Start/stop pump, P1B-HS1
HS1, pump B start
HS1 pump B start
3-position actuator HS1, increase
HS1, actuator increase
HS1 actuator increas
3-position actuator HS1, decrease
HS1, actuator decrease
HS1 actuator decreas
Start/stop dehumidifier, HS1
HS1, dehumidification
HS1 dehumidification
Bypass valve for district cooling system, HS1
HS1, bypass CV1
HS1 bypass CV1
Start/stop pump, P1A-HS2
HS2, pump A start
HS2 pump A start
Start/stop pump, P1B-HS2
HS2, pump B start
HS2 pump B start
3-position actuator HS2, increase
HS2, actuator increase
HS2 actuator increas
3-position actuator HS2, decrease
HS2, actuator decrease
HS2 actuator decreas
Start/stop dehumidifier, HS2
HS2, dehumidification
HS2 dehumidification
Digital outputs

128
Bypass valve for district cooling system, HS2
HS2, bypass CV1
HS2 bypass CV1
Start/stop pump, P1A-HS3
HS3, pump A start
HS3 pump A start
Start/stop pump, P1B-HS3
HS3, pump B start
HS3 pump B start
3-position actuator HS3, increase
HS3, actuator increase
HS3 actuator increas
3-position actuator HS3, decrease
HS3, actuator decrease
HS3 actuator decreas
Start/stop dehumidifier, HS3
HS3, dehumidification
HS3 dehumidification
Bypass valve for district cooling system, HS3
HS3, bypass CV1
HS3 bypass CV1
Exigo 4.1 Manual, Revision A

Description
Exigo Tool name
Display name
Start/stop pump, P1A, HS4
HS4, pump A start
HS4 pump A start
Start/stop pump, P1B, HS4
HS4, pump B start
HS4 pump B start
3-position actuator HS4, increase
HS4, actuator increase
HS4 actuator increas
3-position actuator HS4, decrease
HS4, actuator decrease
HS4 actuator decreas
Start/stop dehumidifier, HS4
HS4, dehumidification
HS4 dehumidification
Bypass valve for district cooling system, HS4
HS4, bypass CV1
HS4 bypass CV1
Start/stop tank pump A, HW1
HW1, tankpump A start
HW1 tankpump A start
Start/stop tank pump B, HW1
HW1, tankpump B start
HW1 tankpump B start
Start/stop exchanger pump A, HW1
HW1, exchangerpump A start
HW1 exchangerpump A start
Start/stop exchanger pump B, HW1
HW1, exchangerpump B start
HW1 exchangerpump B start
Start/stop circulation pump A, HW1
HW1, circulationpump A start
HW1 circulationpump A start
Start/stop circulation pump B, HW1
HW1, circulationpump B start
HW1 circulationpump B start
3-position actuator HW1, increase
HW1, actuator increase
HW1 actuator increas
3-position actuator HW1, decrease
HW1, actuator decrease
HW1 actuator decreas
Start/stop thermal disinfection HW1
HW1, Thermal disinfection,
heating
HW1 Thermal DisInf
Start/stop thermal disinfection/cleaning HW1
HW1, Thermal disinfection /
cleaning
HW1 Thermal Dis/Clean
Start/stop tank pump A, HW2
HW2, tankpump A start
HW2 tankpump A start
Start/stop tank pump B, HW2
HW2, tankpump B start
HW2 tankpump B start
Start/stop exchanger pump A, HW2
HW2, exchangerpump A start
HW2 exchangerpump A start
Start/stop exchanger pump B, HW2
HW2, exchangerpump B start
HW2 exchangerpump B start
Start/stop circulation pump A, HW2
HW2, circulationpump A start
HW2 circulationpump A start
Start/stop circulation pump B, HW2
HW2, circulationpump B start
HW2 circulationpump B start
3-position actuator HW2, increase
HW2, actuator increase
HW2 actuator increas
3-position actuator HW2, decrease
HW2, actuator decrease
HW2 actuator decreas
Start/stop thermal disinfection HW2
HW2, Thermal disinfection,
heating
HW2 Thermal DisInf
Start/stop thermal disinfection/cleaning HW2
HW2, Thermal disinfection /
cleaning
HW2 Thermal Dis/Clean
Start/stop burner 1
Boiler 1, vessel
HB1 start1
Start/stop burner 1, high effect
Boiler 1, vessel (high effect)
HB1 start2
Start/stop pump A, boiler 1
Boiler 1, pump A start
HB1 pump A
Start/stop pump B, boiler 1
Boiler 1, pump B start
HB1 pump B
Start/stop return pump, boiler 1
Boiler 1, return pump start
HB1 return pump
Start/stop burner 2
Boiler 2, vessel
HB2 start1
Start/stop burner 2, high effect
Boiler 2, vessel (high effect)
HB2 start2
Start/stop pump A, boiler 2
Boiler 2, pump A start
HB2 pump A
Start/stop pump B, boiler 2
Boiler 2, pump B start
HB2 pump B
Start/stop return pump, boiler 2
Boiler 2, return pump start
HB2 return pump
Start/stop burner 3
Boiler 3, vessel
HB3 start1
Start/stop burner 3, high effect
Boiler 3, vessel (high effect)
HB3 start2
Start/stop pump A, boiler 3
Boiler 3, pump A start
HB3 pump A
Start/stop pump B, boiler 3
Boiler 3, pump B start
HB3 pump B
Start/stop return pump, boiler 3
Boiler 3, return pump start
HB3 return pump
Start/stop burner 4
Boiler 4, vessel
HB4 start1
Start/stop burner 4, high effect
Boiler 4, vessel (high effect)
HB4 start2
Start/stop pump A, boiler 4
Boiler 4, pump A start
HB4 pump A
Start/stop pump B, boiler 4
Boiler 4, pump B start
HB4 pump B
Start/stop return pump, boiler 4
Boiler 4, return pump start
HB4 return pump
Start/stop transport pump A
Transport pump A start
Transport pump A start
Start/stop transport pump B
Transport pump B start
Transport pump B start
Exigo 4.1 Manual, Revision A
129

130
Description
Exigo Tool name
Display name
Start/stop pump A-DHS1
DHS1, pump A start
DHS1 pump A start
Start/stop pump B-DHS1
DHS1, pump B start
DHS1 pump B start
3-position actuator DHS1, increase
DHS1, actuator increase
DHS1 actuator increa
3-position actuator DHS1, decrease
DHS1, actuator decrease
DHS1 actuator decrea
Start/stop load pump A for storage tank, P1HP1
HP1, load pump A start
HP1 load pump A
Start/stop load pump B for storage tank, P1HP1
HP1, load pump B start
HP1 load pump B
Start/stop pump A, solar
Solar, pump A start
Solar pump A
Start/stop pump B, solar
Solar, pump B start
Solar pump B
Connect the solar system to HW or buffer
Solar, HW->buffer
Solar Load buffer
Cooling unit start
Cool unit start
Cooling unit
Start/stop frequency converter, pressure
control
Frequency converter start
Frequency converter
Sum alarm A + B + C
Sum alarm
Sum alarm
Sum alarm A
Sum alarm A
A-sum alarm
Sum alarm B + C
Sum alarm B/C
B/C-sum alarm
Extra time channel 1
Time channel 1
Time channel 1
Extra time channel 2
Time channel 2
Time channel 2
Extra time channel 3
Time channel 3
Time channel 3
Extra time channel 4
Time channel 4
Time channel 4
Extra time channel 5
Time channel 5
Time channel 5
Exigo 4.1 Manual, Revision A
APPENDIX D ALARM LIST
The alarm text and priority columns show the factory set values.
Heating system 1
No
Alarm text
Prio
Delay
Description
1
Malfunction
P1A-HS1
B
0s
Malfunction pump P1A-HS1
2
Malfunction
P1B-HS1
B
0s
Malfunction pump P1B-HS1
3
Deviation
Supply HS1
A
60 min
Supply temperature HS1 deviates too much from the setpoint for too long
4
Deviation
Room HS1
A
60 min
Room temperature HS1 deviates too much from the setpoint for too long
5
Malfunction
P1A&B-HS1
A
0s
Malfunction in both circulation pumps, P1A and P1B, in HS1
6
HS1 manual
C
0s
HS1 in manual running mode
7
HS1 frost
A
0s
HS1 frost protection active
8
Sensor error
HS1 supply
B
5s
Power failure or short-circuit sensor HS1 supply
9
Sensor error
HS1 room
B
5s
Power failure or short-circuit sensor HS1 room
10
Sensor error
HS1 return
B
5s
Power failure or short-circuit sensor HS1 return
11
Sensor error
HS1 Universal
Limit
B
5s
Power failure or short-circuit sensor HS1 universal limit
12
Sensor error
HS1 Universal
Shift
B
5s
Power failure or short-circuit sensor HS1 universal shift
13
Sensor error
HS1 Humidity
B
5s
Power failure or short-circuit sensor HS1 humidity
14
HS1 limitation
C
0s
HS1 temperature or setpoint limitation activated
15
HS1 blocked
for HW priority
B
0s
HS1 is blocked for HW priority
16
HS1 Screed
Drying
A
240 min
HS1 malfunction screed drying
Heating system 2
No
Alarm text
Prio
Delay
Description
17
Malfunction
P1A-HS2
B
0s
Malfunction pump P1A-HS2
18
Malfunction
P1B-HS2
B
0s
Malfunction pump P1B-HS2
19
Deviation
Supply HS2
A
60 min
Supply temperature HS2 deviates too much from the setpoint for too long
20
Deviation
Room HS2
A
60 min
Room temperature HS2 deviates too much from the setpoint for too long
21
Malfunction
P1A&B-HS2
A
0s
Malfunction both circulation pumps, P1A and P1B, in HS2
22
HS2 manual
C
0s
HS2 in manual running mode
23
HS2 frost
A
0s
HS2 frost protection active
24
Sensor error
HS2 supply
B
5s
Power failure or short-circuit sensor HS2 supply
Exigo 4.1 Manual, Revision A
131
No
Alarm text
Prio
Delay
Description
25
Sensor error
HS2 room
B
5s
Power failure or short-circuit sensor HS2 room
26
Sensor error
HS2 return
B
5s
Power failure or short-circuit sensor HS2 return
27
Sensor error
HS2 Universal
Limit
B
5s
Power failure or short-circuit sensor HS2 universal limit
28
Sensor error
HS2 Universal
Shift
B
5s
Power failure or short-circuit sensor HS2 universal shift
29
Sensor error
HS2 Humidity
B
5s
Power failure or short-circuit sensor HS2 humidity
30
HS2 limitation
C
0s
HS2 temperature or setpoint limitation activated
31
HS2 blocked
for HW priority
B
0s
HS2 is blocked for HW priority
32
HS2 Screed
Drying
A
240 min
HS2 malfunction screed drying
Heating system 3
No
Alarm text
Prio
Delay
Description
33
Malfunction
P1A-HS3
B
0s
Malfunction pump P1A-HS3
34
Malfunction
P1B-HS3
B
0s
Malfunction pump P1B-HS3
35
Deviation
Supply HS3
A
60 min
Supply temperature HS3 deviates too much from the setpoint for too long
36
Deviation
Room HS3
A
60 min
Room temperature HS3 deviates too much from the setpoint for too long
37
Malfunction
P1A&B-HS3
A
0s
Malfunction both circulation pumps, P1A and P1B, in HS3
38
HS3 manual
C
0s
HS3 in manual running mode
39
HS3 frost
A
0s
HS3 frost protection active
40
Sensor error
HS3 supply
B
5s
Power failure or short-circuit sensor HS3 supply
41
Sensor error
HS3 room
B
5s
Power failure or short-circuit sensor HS3 room
42
Sensor error
HS3 return
B
5s
Power failure or short-circuit sensor HS3 return
43
Sensor error
HS3 Universal
Limit
B
5s
Power failure or short-circuit sensor HS3 universal limit
44
Sensor error
HS3 Universal
Shift
B
5s
Power failure or short-circuit sensor HS3 universal shift
45
Sensor error
HS3 Humidity
B
5s
Power failure or short-circuit sensor HS3 humidity
46
HS3 limitation
C
0s
HS3 temperature or setpoint limitation activated
47
HS3 blocked
for HW priority
B
0s
HS3 is blocked for HW priority
48
HS3 Screed
Drying
A
240 min
HS3 malfunction screed drying
Heating system 4
132
No
Alarm text
Prio
Delay
Description
49
Malfunction
P1A-HS4
B
0s
Malfunction pump P1A-HS4
50
Malfunction
P1B-HS4
B
0s
Malfunction pump P1B-HS4
Exigo 4.1 Manual, Revision A
No
Alarm text
Prio
Delay
Description
51
Deviation
Supply HS4
A
60 min
Supply temperature HS4 deviates too much from the setpoint for too long
52
Deviation
Room HS4
A
60 min
Room temperature HS4 deviates too much from the setpoint for too long
53
Malfunction
P1A&B-HS4
A
0s
Malfunction in both circulation pumps, P1A and P1B, in HS4
54
HS4 manual
B
0s
HS4 in manual running mode
55
HS4 frost
A
0s
HS4 frost protection active
56
Sensor error
HS4 supply
B
5s
Power failure or short-circuit sensor HS4 supply
57
Sensor error
HS4 return
B
5s
Power failure or short-circuit sensor HS4 room
58
Sensor error
HS4 room
B
5s
Power failure or short-circuit sensor HS4 return
59
Sensor error
HS4 Universal
Limit
B
5s
Power failure or short-circuit sensor HS4 universal limit
60
Sensor error
HS4 Universal
Shift
B
5s
Power failure or short-circuit sensor HS4 universal shift
61
Sensor error
HS4 Humidity
B
5s
Power failure or short-circuit sensor HS4 humidity
62
HS4 limitation
C
0s
HS4 temperature or setpoint limitation activated
63
HS4 blocked
for HW priority
B
0s
HS4 is blocked for HW priority
64
HS4 Screed
Drying
A
240 min
HS4 malfunction screed drying
Hot water 1
No
Alarm text
Prio
Delay
Description
65
Malfunction Tank-P1A-HW1
B
0s
Malfunction Tank pump P1A-HW1
66
Malfunction Tank-P1B-HW1
B
0s
Malfunction Tank pump P1A-HW1
67
Malfunction Exchanger-P1AHW1
B
0s
Malfunction Exchanger pump P1A-HW1
68
Malfunction Exchanger-P1BHW1
B
0s
Malfunction Exchanger pump P1B-HW1
69
Malfunction Circulation-P1AHW1
B
0s
Malfunction Circulation pump P1A-HW1
70
Malfunction Circulation-P1BHW1
B
0s
Malfunction Circulation pump P1B-HW1
71
Deviation Supply HW1
A
60
min
Supply temperature HW1 deviates too much from the setpoint
for too long
72
Deviation Tank HW1
A
60
min
Tank temperature HW1 deviates too much from the setpoint
for too long
73
Malfunction Tank P1A&BHW1
A
0s
Malfunction in both tank pumps, P1A and P1B, in HW1
74
Malfunction Exchanger
P1A&B-HW1
A
0s
Malfunction in both exchanger pumps, P1A and P1B, in HW1
75
Malfunction
CirculationP1A&B-HW1
A
0s
Malfunction in both circulation pumps, P1A and P1B, in HW1
76
HW1 manual
C
0s
HW1 in manual running mode
77
Frost HW1
A
0s
HW1 frost protection active
78
High temp HW1
B
300 s
HW1 temperature too high
79
Sensor error HW1 supply
B
0s
Power failure or short-circuit sensor HW1 supply
80
Sensor error HW1 Tank
Middle
B
0s
Power failure or short-circuit sensor HW1 tank middle
81
Sensor error HW1 Tank
Bottom
B
0s
Power failure or short-circuit sensor HW1 tank bottom
82
Sensor error HW1 Tank Solar
B
0s
Power failure or short-circuit sensor HW1 tank solar
Exigo 4.1 Manual, Revision A
133
No
Alarm text
Prio
Delay
Description
83
Sensor error HW1 limitation
B
0s
Power failure or short-circuit sensor HW1 limitation
84
Sensor error HW1 Circulation
Return Temp
B
0s
Power failure or short-circuit sensor HW1 circulation return
85
HW1 blocked for HS priority
B
0s
HW1 is blocked for HS priority
86
HW1 Alarm Disinfection
A
0s
HW1 alarm thermal disinfection
Hot water 2
No
Alarm text
Prio
Delay
Description
87
Malfunction Tank-P1A-HW2
B
0s
Malfunction Tank pump P1A-HW2
88
Malfunction Tank-P1B-HW2
B
0s
Malfunction Tank pump P1A-HW2
89
Malfunction Exchanger-P1AHW2
B
0s
Malfunction Exchanger pump P1A-HW2
90
Malfunction Exchanger-P1BHW2
B
0s
Malfunction Exchanger pump P1B-HW2
91
Malfunction Circulation-P1AHW2
B
0s
Malfunction Circulation pump P1A-HW2
92
Malfunction Circulation-P1BHW2
B
0s
Malfunction Circulation pump P1B-HW2
93
Deviation Supply HW2
A
60
min
Supply temperature HW2 deviates too much from the setpoint
for too long
94
Deviation Tank HW2
A
60
min
Tank temperature HW2 deviates too much from the setpoint for
too long
95
Malfunction Tank P1A&BHW2
A
0s
Malfunction in both tank pumps, P1A and P1B, in HW2
96
Malfunction Exchanger
P1A&B-HW2
A
0s
Malfunction in both exchanger pumps, P1A and P1B, in HW2
97
Malfunction Circulation
P1A&B-HW2
A
0s
Malfunction in both circulation pumps, P1A and P1B, in HW2
98
HW2 manual
C
0s
HW2 in manual running mode
99
Frost HW2
A
0s
HW2 frost protection active
100
High temp HW2
B
300 s
HW2 temperature too high
101
Sensor error HW2 supply
B
5s
Power failure or short-circuit sensor HW2 supply
102
Sensor error HW2 Tank
Middle
B
5s
Power failure or short-circuit sensor HW2 tank middle
103
Sensor error HW2 Tank
Bottom
B
5s
Power failure or short-circuit sensor HW2 tank bottom
104
Sensor error HW2 Tank
Solar
B
5s
Power failure or short-circuit sensor HW2 tank solar
105
Sensor error HW2 limitation
B
5s
Power failure or short-circuit sensor HW2 limitation
106
Sensor error HW2
Circulation Return Temp
B
5s
Power failure or short-circuit sensor HW2 circulation return
107
HW2 blocked for HS priority
B
0s
HW2 is blocked for HS priority
108
HW2 Alarm Disinfection
A
0s
HW2 alarm thermal disinfection
District heating
134
No
Alarm text
Prio
Delay
Description
109
Malfunction P1ADHS1
B
0s
Malfunction pump P1A-DHS1
110
Malfunction P1BDHS1
B
0s
Malfunction pump P1B-DHS1
111
Deviation Supply
DHS1
A
60
min
Supply temperature DHS1 deviates too much from the setpoint for too
long
112
Malfunction
P1A&B-DHS1
A
0s
Malfunction both circulation pumps, P1A and P1B, in DHS1
113
DHS1 manual
C
0s
DHS1 in manual running mode
114
Frost DHS1
A
0s
DHS1 frost protection active
Exigo 4.1 Manual, Revision A
No
Alarm text
Prio
Delay
Description
115
Sensor error DHS1
supply
B
5s
Power failure or short-circuit, supply temperature sensor DHS1
116
Sensor error DHS1
return
B
5s
Power failure or short-circuit, return temperature sensor DHS1
117
Sensor error DHS1
external demand
B
5s
Power failure or short-circuit, external demand sensor DHS1
118
DHS1 high supply
temp
A
300 s
DHS1 high supply temp
Boiler circuit
No
Alarm text
Prio
Delay
Description
119
Boiler alarm
A
0s
Boiler alarm
120
Boiler manual
C
0s
Boiler in manual running mode
121
Sensor error boiler
supply
B
5s
Power failure or short-circuit, boiler supply sensor
122
Sensor error boiler
return
B
5s
Power failure or short-circuit sensor boiler return
123
High boiler temp
A
0s
Boiler temperature is too high
124
Low boiler temp
A
0s
Boiler temperature is too low
125
Low boiler return
temp
C
0s
Return temperature from boiler is too low
126
Pressure/flow error
B
20 s
Pressure or flow error in the boiler circuit
127
Malfunction P1A
transport pump
B
0s
Malfunction in boiler transport pump A
128
Malfunction P1B
transport pump
B
0s
Malfunction in boiler transport pump B
129
Malfunction P1A&Btransport pump
A
0s
Malfunction in both transport pumps, P1A and P1B
Boiler 1
No
Alarm text
Prio
Delay
Description
130
Malfunction P1ABoiler 1
B
0s
Malfunction in pump P1A in Boiler 1
131
Malfunction P1BBoiler 1
B
0s
Malfunction in pump P1B in Boiler 1
132
Malfunction
P1A&P1B-Boiler 1
A
0s
Malfunction in both pumps, P1A and P1B, in Boiler 1
133
Malfunction Boiler
1
B
0s
Malfunction in Boiler 1
134
Boiler 1 manual
C
0s
Boiler 1 in manual mode
135
Sensor error Boiler
1 supply
B
5s
Power failure or short-circuit, Boiler 1 supply sensor
136
Sensor error Boiler
1 return
B
5s
Power failure or short-circuit, Boiler 1 return sensor
137
Boiler 1 high
supply temp
B
0s
High supply temperature, Boiler 1
138
Boiler 1 low return
temp
C
0s
Return temperature from Boiler 1 is too low
139
Malfunction Preturn Boiler 1
B
0s
Malfunction in pump P-return Boiler 1
Exigo 4.1 Manual, Revision A
135
Boiler 2
No
Alarm text
Prio
Delay
Description
140
Malfunction P1ABoiler 2
B
0s
Malfunction in pump P1A in Boiler 2
141
Malfunction P1BBoiler 2
B
0s
Malfunction in pump P1B in Boiler 2
142
Malfunction
P1A&P1B-Boiler 2
A
0s
Malfunction in both pumps, P1A and P1B, in Boiler 2
143
Malfunction Boiler 2
B
0s
Malfunction in Boiler 2
144
Boiler 2 manual
C
0s
Boiler 2 in manual mode
145
Sensor error Boiler
2 supply
B
5s
Power failure or short-circuit, Boiler 2 supply sensor
146
Sensor error Boiler
2 return
B
5s
Power failure or short-circuit, Boiler 2 return sensor
147
Boiler 2 high supply
temp
B
0s
High supply temperature, Boiler 2
148
Boiler 2 low return
temp
C
0s
Return temperature from Boiler 2 is too low
149
Malfunction P-return
Boiler 2
B
0s
Malfunction in pump P-return Boiler 2
Boiler 3
No
Alarm text
Prio
Delay
Description
150
Malfunction P1ABoiler 3
B
0s
Malfunction in pump P1A in Boiler 3
151
Malfunction P1BBoiler 3
B
0s
Malfunction in pump P1B in Boiler 3
152
Malfunction
P1A&P1B-Boiler 3
A
0s
Malfunction in both pumps, P1A and P1B, in Boiler 3
153
Malfunction Boiler
3
B
0s
Malfunction in Boiler 3
154
Boiler 3 manual
C
0s
Boiler 3 in manual mode
155
Sensor error Boiler
3 supply
B
5s
Power failure or short-circuit, Boiler 3 supply sensor
156
Sensor error Boiler
3 return
B
5s
Power failure or short-circuit, Boiler 3 return sensor
157
Boiler 3 high
supply temp
B
0s
High supply temperature, Boiler 3
158
Boiler 3 low return
temp
C
0s
Return temperature from Boiler 3 is too low
159
Malfunction Preturn Boiler 3
B
0s
Malfunction in pump P-return Boiler 3
Boiler 4
136
No
Alarm text
Prio
Delay
Description
160
Malfunction P1ABoiler 4
B
0s
Malfunction in pump P1A in Boiler 4
161
Malfunction P1BBoiler 4
B
0s
Malfunction in pump P1B in Boiler 4
162
Malfunction
P1A&P1B-Boiler 4
A
0s
Malfunction in both pumps, P1A and P1B, in Boiler 4
163
Malfunction Boiler 4
B
0s
Malfunction in Boiler 4
164
Boiler 4 manual
C
0s
Boiler 4 in manual mode
Exigo 4.1 Manual, Revision A
No
Alarm text
Prio
Delay
Description
165
Sensor error Boiler 4
supply
B
5s
Power failure or short-circuit, Boiler 4 supply sensor
166
Sensor error Boiler 4
return
B
5s
Power failure or short-circuit, Boiler 4 return sensor
167
Boiler 4 high supply
temp
B
0s
High supply temperature, Boiler 4
168
Boiler 4 low return
temp
C
0s
Return temperature from Boiler 4 is too low
169
Malfunction P-return
Boiler 4
B
0s
Malfunction in pump P-return Boiler 4
Buffer
No
Alarm text
Prio
Delay
Description
170
Malfunction P1AHP1
B
0s
Malfunction in pump P1A in HP1
171
Malfunction P1BHP1
B
0s
Malfunction in pump P1B in HP1
172
Malfunction P1A &
P1B-HP1
A
0s
Malfunction in both pumps, P1A and P1B, in HP1
173
HP1 manual
C
0s
HP1 in manual running mode
174
HP1 Alarm max
temp buffer
A
300 s
Buffer temperature is too high
175
Sensor error HP1
Tank Top
B
5s
Power failure or short-circuit sensor HP1 tank top
176
Sensor error HP1
Tank Bottom
B
5s
Power failure or short-circuit sensor HP1 tank bottom
177
Sensor error HP1
external demand
B
5s
Power failure or short-circuit, external demand sensor HP1
No
Alarm text
Prio
Delay
Description
178
Malfunction P1ASO1
B
0s
Malfunction in pump P1A in SO1
179
Malfunction P1BSO1
B
0s
Malfunction in pump P1A in SO1
180
Malfunction P1A &
P1B-SO1
A
0s
Malfunction in both pumps, P1A and P1B, in SO1
181
SO1 manual
C
0s
SO1 in manual running mode
182
High temp collector
SO1
A
0s
High temperature collector SO1
183
Frost collector SO1
A
0s
Frost collector SO1
184
Sensor error SO1
Collector
B
5s
Power failure or short-circuit, SO1 collector sensor
185
Sensor error SO1
Return
B
5s
Power failure or short-circuit, SO1 collector return sensor
Solar
Differential pressure
No
Alarm text
Prio
Delay
Description
188
Pressure manual
C
0s
Pressure control in manual running mode
189
Sensor error
pressure
B
5s
Incorrect signal pressure transmitter
Exigo 4.1 Manual, Revision A
137
Consumption
No
Alarm text
Prio
Delay
Description
197
Pulse error volume
B
0s
No pulses from water volume meter
198
Pulse error energy
B
0s
No pulses from energy meter
199
High cold water
consumption/day
B
0s
24 hour cold water usage higher than limit
200
High energy usage
B
0s
24 hour energy usage higher than set limit
201
High cold water
consumption/h
B
0s
Cold water usage/hour higher than set limit
203
Pulse error CW1
B
0s
No pulses from cold water meter 1
204
Pulse error CW2
B
0s
No pulses from cold water meter 2
Miscellaneous
138
No
Alarm text
Prio
Delay
Description
205
Sensor error
outdoor temp
B
5s
Sensor error outdoor temp
206
Sensor error
outdoor temp HS2
B
5s
Power failure or short-circuit, outdoor temperature sensor HS2
207
Sensor error
outdoor temp HS3
B
5s
Power failure or short-circuit, outdoor temperature sensor HS3
208
Sensor error
outdoor temp HS4
B
5s
Power failure or short-circuit, outdoor temperature sensor HS4
209
Sensor error extra
sensor 1
B
5s
Power failure or short-circuit extra sensor 1
210
Sensor error extra
sensor 2
B
5s
Power failure or short-circuit extra sensor 2
211
Sensor error extra
sensor 3
B
5s
Power failure or short-circuit extra sensor 3
212
Sensor error extra
sensor 4
B
5s
Power failure or short-circuit extra sensor 4
213
Sensor error extra
sensor 5
B
5s
Power failure or short-circuit extra sensor 5
214
Sensor error wind
B
5s
Incorrect signal wind speed transmitter
215
Sensor error HP
supply
B
5s
Power failure or short-circuit sensor HP supply
216
Sensor error HP
return
B
5s
Power failure or short-circuit sensor HP return
217
Sensor error CP
supply
B
5s
Power failure or short-circuit sensor CP supply
218
Sensor error CP
return
B
5s
Power failure or short-circuit sensor CP return
219
Malfunction
frequency
converter
B
0s
Malfunction frequency converter
220
Expansion vessel
A
60 s
Malfunction expansion vessel
221
External alarm
A
0s
External alarm 1
222
P1-freq manual
C
0s
P1-frequency controlled in manual running mode
223
Internal battery
error
B
0s
Internal battery needs replacing
224
Communication
error expansion
unit 1
B
0s
Communication interrupted between expansion unit 1 and master
controller
225
Communication
error expansion
unit 2
B
0s
Communication interrupted between expansion unit 2 and master
controller
226
Communication
error M-Bus HM
HS1
B
0s
M-Bus communication fault between master and heat meter HS1
Exigo 4.1 Manual, Revision A
No
Alarm text
Prio
Delay
Description
227
Communication
error M-Bus HM
HS2
B
0s
M-Bus communication fault between master and heat meter HS2
228
Communication
error M-Bus HM
HS3
B
0s
M-Bus communication fault between master and heat meter HS3
229
Communication
error M-Bus HM
HS4
B
0s
M-Bus communication fault between master and heat meter HS4
230
Communication
error M-Bus HM
HW1
B
0s
M-Bus communication fault between master and heat meter HW1
231
Communication
error M-Bus HM
HW2
B
0s
M-Bus communication fault between master and heat meter HW2
232
Communication
error M-Bus HM
DHS1
B
0s
M-Bus communication fault between master and heat meter DHS1
233
Communication
error M-Bus HM
WM1
B
0s
M-Bus communication fault between master and water meter 1
234
Communication
error M-Bus HM
WM2
B
0s
M-Bus communication fault between master and water meter 2
235
Communication
error wireless
sensors
B
0s
M-Bus communication fault between master and wireless sensors
Exigo 4.1 Manual, Revision A
139
APPENDIX E TERMINAL LISTS
Exigo Ardo (24 V models)
Hardware model
Terminal
140
I/O
Notes
A15
A28
1
Power supply G+
•
•
2
Power supply G0-
•
•
3
Earth
•
•
4
DI common +C
•
•
10
DO common GDO
•
•
11
DO1
•
•
12
DO2
•
•
13
DO3
•
•
14
DO4
•
•
15
DO5
-
•
16
DO6
-
•
17
DO7
-
•
30
Analogue ground
•
•
31
AI1
•
•
32
AI2
•
•
33
Analagoue ground
•
•
34
AI3
•
•
35
AI4
•
•
40
Analogue ground
•
•
41
UAI1
-
•
42
UAI2
-
•
43
Analogue ground
•
•
44
UAI3
-
•
45
UAI4
-
•
50
Port 1 B
•*
•*
Exigo 4.1 Manual, Revision A
Hardware model
Terminal
I/O
Notes
A15
A28
51
Port 1 A
•*
•*
52
Port 1 N
•*
•*
53
Port 1 E
•*
•*
60
Port 2 B
•*
•*
61
Port 2 A
•*
•*
62
Port 2 N
•*
•*
63
Port 2 E
•*
•*
71
DI1
•
•
72
DI2
•
•
73
DI3
•
•
74
DI4
•
•
75
DI5
-
•
76
DI6
-
•
77
DI7
-
•
78
DI8
-
•
80
Analogue ground
•
•
81
AO1
•
•
82
AO2
•
•
83
AO3
•
•
84
AO4
-
•
85
AO5
-
•
* depending on the model
Exigo 4.1 Manual, Revision A
141
Exigo Vido (230 V models)
8x PT1000 / Ni1000
AI1
17
AI2
18
AI3
19
AI4
20
13
12
21
22
UI3
23
UI4
24
DI1
25
DI2
26
L
N
15
14
11
AO1 27
0..10V Out
AO2 28
0..10V Out
µ1A 230V~ (ind.)
UI1
UI2
16
N
9
7
5
4
B
DO4
6
3
32
DO5
8
30
A
DO6
10
Gnd 29
31
DO7
DO3
DO2
2
MBUS*
1
DO1
Hardware model
Terminal
I/O
Notes
V19
V20
1
DO1
•
•
2
Common DO1/DO2
•
•
3
DO2
•
•
4
-
-
-
5
DO3
•
•
6
Common DO3/DO4
•
•
7
DO4
•
•
8
-
-
-
9
DO5
•
•
10
Common DO5/DO6
•
•
11
DO6
•
•
12
-
-
-
13
DO7
•
•
14
Common DO7
•
•
15
Power supply L
•
•
16
Power supply N
•
•
17
AI1
•
•
18
AI2
•
•
19
AI3
•
•
20
AI4
•
•
21
UAI1
•
•
22
UAI2
•
•
23
UAI3
•
•
24
UAI4
•
•
25
DI1
•
•
26
DI2
•
•
27
UA1
•
•
28
UA2
•
•
29
Analogue ground
•
•
30
AO3
-
•
31
MBUS A
•*
•
32
MBUS B
•*
•
* depending on the model
142
Exigo 4.1 Manual, Revision A
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