Ideal Heating EVOMAX 2 User manual

When replacing any part on this appliance, use only spare parts that you can be assured conform to the safety and performance
specification that we require. Do not use reconditioned or copy parts that have not been clearly authorised by Ideal Heating.
For the very latest copy of literature for specification and maintenance practices visit our website idealheating.com
where you can download the relevant information in PDF format.
02/2023
UIN 230696 A02
iCCS COMMERCIAL
CONTROL SYSTEM
EVOMAX 2

2
CONTENTS
NOTE : LEAVE THESE INSTRUCTIONS ADJACENT TO THE iCCS
1 INTRODUCTION............................................................... 4
1.1 Combustion Manager ........................................................ 4
1.2 System Manager ............................................................... 4
1.3 VariCAN Adapter ............................................................... 4
1.4 Extension Module.............................................................. 4
1.5 VariCAN Bus...................................................................... 4
2 PARTIAL HYDRAULIC CIRCUITS ................................... 4
3 OPERATING GUIDE ......................................................... 5
3.1 Glossary ............................................................................ 6
3.1.1 Menufunctionresourcedenitions.................................... 6
3.1.2 Pumpdenitions................................................................ 6
3.2 Introduction........................................................................ 6
3.3 Menu..................................................................................6
3.4 Menu-Conguration......................................................... 6
3.4.1 Menu-Conguration–General ........................................6
3.4.2 Menu-Conguration-General-Language...................... 7
3.4.3 Menu–Conguration–General-Date.............................7
3.4.4 Menu–Conguration–General-Time ............................7
3.4.5 Menu–Conguration–General–Accesslevel................ 7
3.4.6 Menu-Conguration......................................................... 8
3.5 Menu–Boiler ................................................................... 9
3.5.1 Menu–Boiler-Status....................................................... 9
3.5.2 Menu–Boiler–Status-Conguration..............................9
3.5.3 Menu–Boiler–Status–Conguration-Inputs................ 9
3.5.4 Menu–Boiler–Status–Conguration-Outputs........... 10
3.5.5 Menu–Boiler–Status–Conguration-Parameters..... 10
3.5.6 Menu–Boiler–Status–Realtimevalues......................10
3.5.7 Menu–Boiler–Status–Realtimevalues-Inputs......... 11
3.5.8 Menu–Boiler–Status–Realtimevalues-Sensors ..... 11
3.5.9 Menu–Boiler–Status–Realtimevalues-Outputs...... 11
3.5.10 Menu–Boiler-Service ...................................................12
3.5.11 Menu–Boiler–Settings .................................................12
3.5.12 BoilerPumpOperatingMode .......................................... 13
3.5.13 BoilerPumpOverruntime ...............................................13
3.5.14 Menu–Boiler–Flueoffset..............................................13
3.5.15 Menu–Boiler–Hoursrun...............................................13
3.5.16 Menu–Boiler–Faults.....................................................13
3.5.17 Menu–Boiler–Faults–Summary ................................. 13
3.5.18 Menu–Boiler–Faults–Showdetail..............................13
3.5.19 Menu–Boiler–Faults–Reset ....................................... 13
3.6 Menu–Plant .................................................................. 13
3.6.1 Menu–Plant-Status......................................................13
3.6.2 Menu–Plant–Status–Realtimevalues.......................13
3.6.3 Menu – Plant – Status – Real time values – Demand
inputs...............................................................................14
3.6.4 Menu–Plant–Status–Realtimevalues-Sensors ...... 14
3.6.5 Menu–Plant–Status–Realtimevalues-Outputs....... 14
3.6.6 Menu–Plant–Operatingmode......................................14
3.6.7 Menu–Plant–Settings ..................................................14
3.7 Menu–Heatingcircuits...................................................16
3.7.1 Menu–Heatingcircuits-Status......................................16
3.7.2 Menu–Heatingcircuits–Status-Summary .................. 16
3.7.3 Menu–Heatingcircuits–Status–Realtimevalues ...... 16
3.7.4 Menu–Heatingcircuits–Status–Realtimevalues–Demand
inputs...............................................................................16
3.7.5 Menu – Heating circuits – Status – Real time values –
Sensors ...........................................................................16
3.7.6 Menu – Heating Circuits – Status – Real time Values –
Outputs............................................................................17
3.7.7 Menu–Heatingcircuit–Operatingmode.......................17
3.7.8 Menu–Heatingcircuit–Roomtemperature................... 17
3.7.9 Menu–Heatingcircuit–Flowtemperature..................... 17
3.7.10 Menu–Heatingcircuit–Settings.................................... 17
3.7.11 Menu–Heatingcircuit–Settings-Preheat .................... 18
3.7.12 Menu–Heatingcircuit–Settings–Heatinglimit............ 18
3.7.13 Menu – Heating circuit – Settings– Room temp. switch
diff.................................................................................... 18
3.7.14 Menu–Heatingcircuit–Settings–Pump ...................... 18
3.7.15 Menu-HeatingCircuit-Settings-HeatingCurve .......... 18
3.7.16 Menu–HeatingCircuit–Settings–Frostprotection...... 19
3.7.17 Menu–HeatingCircuit–Timeclock................................19
3.7.18 Menu–Heatingcircuit–Holidayprogramme ................. 19
3.8 Menu–DHW................................................................... 19
3.8.1 Menu–DHW-Status......................................................19
3.8.2 Menu–DHW–Status-Summary ..................................19
3.8.3 Menu–DHW–Status–Realtimevalues ......................19
3.8.4 Menu – DHW – Status – Real time values – Demand
inputs...............................................................................19
3.8.5 Menu–DHW–Status–Realtimevalues–Sensors..... 20
3.8.6 Menu–DHW–Status–Realtimevalues–Outputs...... 20
3.8.7 Menu–DHW–OperatingMode .....................................20
3.8.8 Menu–DHW–Tanktemperature ...................................20
3.8.9 Menu–DHW–Settings..................................................20
3.8.10 Menu–DHW–Settings–Onetimeboost......................20
3.8.11 Menu–DHW–Settings–Pump..................................... 21
3.8.12 Menu–DHW–Settings–Legionella..............................21
3.8.13 Menu–DHW–Settings–Frostprotection..................... 21
3.8.14 Menu-DHW-Setting .....................................................21
3.8.15 Menu–DHW–Timeclock..............................................21
3.8.16 Menu–DHW–Holidayprogramme................................21
3.9 Menu–Cascademanager ..............................................22
3.9.1 Menu–Cascademanager-Status................................. 22
3.9.2 Menu–Cascademanager–Status–Summary............. 22
3.9.3 Menu–Cascademanager–Status–Boilers................. 22
3.9.4 CascdeManager-OperatingMode ................................22
3.9.5 Menu–Cascademanager–Settings ............................. 22
3.9.6
Menu–Cascademanager–Settings–Boilermodulation...22
3.9.7 Modulation max .............................................................. 22
3.9.8 Modulation min ............................................................... 22
3.9.9 Menu – Cascade manager – Settings – Sequence on
delay................................................................................22
3.9.10 Menu–Cascademanager–Settings–Sequenceorder22
3.9.11 Menu–Cascademanager-Settings-Hoursrun ........... 23
3.9.12 Menu–Cascademanager–Settings-Timed ................ 23
3.9.13 Menu–Cascademanager–Settings-Ext.heat
 sourcesequence ............................................................. 23
4 INSTALLATION............................................................... 24
4.1 Electrical Connections.....................................................24
5 CONFIGURATION .......................................................... 25
5.1 System Manager Interface ..............................................25
5.2 CascadeConguration....................................................26
5.3 PlantConguration.......................................................... 28
5.4 BoilerConguration......................................................... 31
5.5 HeatingCircuitConguration...........................................32
5.6 DHWcircuitconguration................................................34
APPENDIX 1 PARTIAL HYDRAULIC CIRCUITS..................... 36
APPENDIX1aBoiler1MasterCongurationOptions ............... 36
APPENDIX1bBoilernSlaveCongurationOptions ................. 40
APPENDIX1cExtensionModuleCongurationOptions ........... 41
APPENDIX1dAbbreviations...................................................... 45

3
FIGURE1 SYSTEMMANAGERINTERFACE ..............................................................................................................................................5
FIGURE2VARICANADAPTORDIAGRAM ..............................................................................................................................................24
FIGURE3EXTENSIONMODULEDIAGRAM...........................................................................................................................................24
FIGURE4SYSTEMMANAGERINTERFACE...........................................................................................................................................25
FIGURE5SEQUENCECONTROL1-16BOILERS ..................................................................................................................................36
FIGURE6SEQUENCECONTROL1-16BOILERSWITHMIXINGHEADERANDSYSTEMPUMP .......................................................36
FIGURE7SEQUENCECONTROL1-16BOILERSWITHINDIRECTHOTWATERSTORAGETANK ...................................................36
FIGURE8SEQUENCECONTROL1-16BOILERSWITHACTPUMPCIRCUIT.....................................................................................37
FIGURE9SEQUENCECONTROL1-16BOILERSWITHCOMMONPUMPANDOPTIONALVALVES ................................................. 37
FIGURE10SEQUENCECONTROL1-16BOILERSWITHLOCALDHWDEMAND ...............................................................................37
FIGURE11SINGLEBOILERWITHACTPUMPCIRCUITANDDHWTANK...........................................................................................38
FIGURE12SINGLEBOILERWITH2XCTPUMPCIRCUITS.................................................................................................................38
FIGURE13SINGLEBOILERWITHCTANDHWSZONECIRCUITS......................................................................................................38
FIGURE14SINGLEBOILERWITHCTANDHWSZONECIRCUITS......................................................................................................39
FIGURE15SEQUENCECONTROL1-16BOILERS,BOILERN..............................................................................................................40
FIGURE16SEQUENCECONTROL1-16BOILERS,BOILERNWITHCTPUMPCIRCUIT................................................................... 40
FIGURE17SEQUENCECONTROL1-16BOILERS,BOILERNWITHCTPUMPANDINDIRECTHWSCIRCUIT ...............................40
FIGURE18SEQUENCECONTROL1-16BOILERS,BOILERNWITH2XCTPUMPCIRCUIT ............................................................40
FIGURE19EXTENSIONMODULEWITH1XMIXINGCIRCUIT.............................................................................................................41
FIGURE20EXTENSIONMODULEWITH2XMIXINGCIRCUITS ..........................................................................................................41
FIGURE21EXTENSIONMODULEWITH1XMIXINGCIRCUITAND1XCTPUMPEDCIRCUIT ........................................................41
FIGURE22EXTENSIONMODULEWITH1XMIXINGCIRCUITAND1XAIRHANDLERCIRCUIT .....................................................42
FIGURE23EXTENSIONMODULEWITH1XMIXINGCIRCUITAND1XHWSCIRCUIT .....................................................................42
FIGURE24EXTENSIONMODULEWITH2XAIRHANDLERCIRCUITS ...............................................................................................42
FIGURE25EXTENSIONMODULEWITH1XCTPUMPEDCIRCUITAND1XHWSCIRCUIT.............................................................43
FIGURE26EXTENSIONMODULEWITH2XHWSCIRCUIT .................................................................................................................43
FIGURE27EXTENSIONMODULEWITHMIXINGCONTROLTOPLATEHEATEXCHANGERFORDIRECTHWS............................43
FIGURE28EXTENSIONMODULEWITHMIXINGCONTROLTOPLATEHEATEXCHANGERFORDIRECTHWSWITHDHWPUMP....44
FIGURE29EXTENSIONMODULEWITHMIXINGCONTROLTOPLATEHEATEXCHANGERFORDIRECTDHWWITHPUMP ......44
FIGURE30EXTENSIONMODULEWITHPRIMARYBUFFERMIXINGCONTROLTOPLATEHEATEXCHANGERFORDIRECTDHWWITHPUMP......... 44
CONTENTS - Figures

4
1 INTRODUCTION
ThisdocumentdescribestheiCCSwhichisacommercialcontrol
systemplatformthatisintegratedatalllevelsinaplantroom,from
thecombustionmanagerwithintheboilertotheextensionmodule
atthenalheatingandDHWcircuits.
Itcoversthedescriptionofthesystemanditsmodules,alongwiththe
conguration,hydrauliccircuitssupported,interconnectionwiring,
data logging and fault management.
TheiCCS consists of:
• Boiler combustion manager
• System manager
• VariCAN adapter
• Extension module
• System accessories
1.1 Combustion Manager
The Combustion manager is mounted in the boiler and controls
theinternalsafetyfunctionsassociatedwithaheatengine.Italso
providesinformationtotheSystemmangeronthestatusoftheheat
engineaswellasauxiliaryinputsandoutputs.
1.2 System Manager
TheSystemmanagerislocatedwithintheboilerandprovidesthe
controllingfunctions.OneSystemmanagerisrequiredperboiler,it
cansupportmultipleCombustionmanagers.TheSystemmanager
alsoprovidestheUserinterfacefunction.
ASystemmanagercanbeconguredasa Master or Slaveina
cascadeofBoilers,and/orwhenanyexternalmoduleisused.E.g.
Extension module.
The Master System manager controls both its own Combustion
manager and all other Slave System managers as well as the
externalmodules.ItcanalsocontrolotherCombustionmanagers
withinthesameboiler.
1.3 VariCAN Adapter
TheVariCANadapterisanoptionalaccessorythatisinstalledwithin
theboiler.ItallowstheBuscommunicationsystemtobeextended
outsideoftheboilertoeitherotherboilersinaCascade,whereeach
boilerrequiresone,ortotheExtensionmodules.
1.4 Extension Module
TheExtensionmoduleaddsadditionalHeating,DHWstorageand
HotWaterSystemstotheinstallation.
1.5 VariCAN Bus
TheiCCScommunicatesusingtheVariCANbus.Atotalof60devices
canbemanagedonasinglebus,madeupfromamixofCombustion
managers,SystemmanagersandExtensionmodules.Eachofthese
iscountedasonedeviceontheVariCANbus.
Itispossibletocascadeupto 16 boilers on the VariCAN bus, 1
MasterSystemmanagerand19SlaveSystemmanagers.
Thesystemcansupportupto8Extensionmodules.
However,thetotalnumberofdevicesstillcannotexceed60.
2 PARTIAL HYDRAULIC CIRCUITS
RefertoAPPENDIX 1 on page 36.

5
A. Rotary Knob
 • Enteramenu,ifinthenormaloperationscreen,andhighlighttherstmenuitem.
•
Scrollup(anti-clockwise)ordown(clockwise)inamenu
 • Changethevalueinparametersetting.
 • Ifanerrorisshowinginthetitlebar,scrolltotheassociatederrorscreen(s),andreturn.
B. LCD Display Screen
• Menu and status display.
C. Burner LED
 • Willbeoniftheburnerislit.
D. Select button
 • Enteramenu,ifinthenormaloperationscreen,andhighlighttherstmenuitem.
 • Enterthehighlightedmenu(submenuorparameter),ifinamenuorsubmenu.
 • Ifinaparametersetting,selectaparameterwhichwillthenashforadjustment,onceadjustedusingtherotary
knobpressagaintostoreandmoveon.
E. Back button
 • Inamenu,returntothepreviousmenulayer.
 • Inparametersetting,exittheparameterwithoutstoringthevalue.
 • Inaguidedassistant,gobacktothepreviousscreen.
F. Reset button
 • Resettheassociatedboilermoduleerror,ifaresettable(lockout)errorisactive.
 • Returntothenormaloperationscreen.
BACK
OK
A B C DEF
3 OPERATING GUIDE
Figure 1 SYSTeM MANAger iNTerFACe

6
3.1 Glossary
3.1.1 Menu function resource
denitions
• Plant – related to the master or
standalone boiler for plant control
(common)functions
• Boiler–onlyrelatedtoanindividualboiler
andonlyusedbythatboiler
• Heating Circuit – only related to an
individualheatingcircuit
• DHWcircuit–onlyrelatedtoanindividual
DHWcircuit
3.1.2 Pump denitions
• Systempump–usedtocirculatewater
through the Heating and/or Domestic
HotWatercircuitsaswellaseitherthe
boiler or the secondary side of a Low
LossHeaderorPlateHeatExchanger.
• Shared boiler pump – used to only
circulate water through more than one
boiler
• Shunt pump – used to circulate an
amountofwaterbetweenowandreturn
tolimitthetemperaturedifferential
• Boilerpump–usedtoonlycirculatewater
throughasingleboiler
• HCpump–apumporvalvethatallows
owthroughaHeatingCicruit
• DHWpump–apumporvalvethatallow
owthroughaDomesticHotWatercircuit
3.2 Introduction
Oncetheboilersareinstalledandcongured
therearestillanumberoffunctionsavailable
fortheoverallsystemSettings,theStatusof
theBoilers,HeatingCircuits,andCascade.
The status screens of each boiler in the
cascadearethesame,theyshowthesame
informationinrelationtotheboiler,andeach
slavewillshowthefollowingscreen:
< Boiler Name & Model No. >
Operation: Standby
Boiler Setp.: 0%
Boiler cap.: 0%
Flow temp.: 40.2ºC
TheMasterwill showthesameexceptfor
asmallleftpointingchevroninthetopleft
handcorner,thisisindicatingthatthereisa
secondstatusscreenaccessbyturningthe
knobanticlockwise:
< Boiler Name & Model No. >
Operation: Standby
Boiler Setp.: 0%
Boiler cap.: 0%
Flow temp.: 40.2ºC
OntheMasterboilerinthecascadethere
is an additional status screen which gives
information in relation to the system, on
rotatingtheknobanticlockwise:
< Boiler Name & Model No. >
Operation: Standby
Plant Setp.: 0%
Plant cap.: 0%
Header: 40.2ºC
The chevron will now be right pointing
and appear on the top right hand corner,
indicatingthatthereisanotherstatusscreen
accessedbyrotatingtheknobclockwise.In
thiscasebacktotheBoilerstatusscreen.
Ifanyboilerfaultsexist,therewillbeanother
right pointing chevron on the boiler status
screen.Forboilerspecicfaultsrefertothe
BoilerUserguide.
3.3 Menu
When any of the buttons are pressed or
the knob rotated the display backlight will
brightenupfromitsstandbyreducedlevel.
Toselectthemenu,pressthe‘Select’button,
themenuwillappear:
Menu
Conguration
Boiler Menu
Plant
Themenucanbescrolleddownandcontains
thefollowingitems:
Menu
Conguration
Boiler Menu
Plant
Heating circuits
Menu
Boiler Menu
Plant
Heating circuits
DHW
Menu
Plant
Heating circuits
DHW
Cascade
Menu
Heating circuits
DHW
Cascade
Menu
DHW
Cascade
Note:SlaveboilersdonothavetheCascade
menu option.
3.4 Menu - Conguration
The conguration menu has the following
options, there are other options but these
arehiddenfromtheUser/Installer:
Conguration
General
3.4.1 Menu - Conguration – General
TheGeneralmenuhasthefollowingoptions:
General
Language
Date
Time
General
Language
Date
Time
Access level
General
Date
Time
Access level
General
Time
Access level

7
3.4.2 Menu - Conguration - General
- Language
The language menu has the following
options:
Language
Local language
System language
Language
Local language
System language
Note:OnlytheMasterboilerhasanoption
tosettheSystemlanguage.
TheoptionsareidenticalforSystemorLocal
Languageoption.
Local language
English
Francais
Nederlands
Local language
English
Francais
Nederlands
Italiano
Local language
Francais
Nederlands
Italiano
Espanol
Local language
Nederlands
Italiano
Espanol
Turkce
Local language
Italiano
Espanol
Turkce
Deutsch
Local language
Espanol
Turkce
Deutsch
Polsky
Local language
Turkce
Deutsch
Polsky
Cesky
Once the language is selected, the Local
boilerorcomplete System will recongure
itselfto the chosen language.Thedisplay
will change immediately to the selected
language.
3.4.3 Menu – Conguration – General
- Date
TheDatescreenisthendisplayedandeach
itemcanbeselectedandchanged:
Date
Year: 2019
Month: 7
Day: 4
Done
Date
Year: 2019
Month: 7
Day: 4
Done
Date
Year: 2019
Month: 7
Day: 4
Done
Date
Year: 2019
Month: 7
Day: 4
Done
3.4.4 Menu – Conguration – General
- Time
TheTimescreenisthendisplayedandeach
itemcanbeselectedandchanged:
Time
Hour: 9
Minute: 11
Auto su/wi time: 
Time
Hour: 9
Minute: 11
Auto su/wi time: 
Time
Hour: 9
Minute: 11
Auto su/wi time: 
Oncethesettingismadethenthescreenis
leftbypressingthebackbutton.
3.4.5 Menu – Conguration – General
– Access level
TheAccesslevelscreenisthendisplayed
and each item can be selected and the
defaultaccesslevelcodecanbechanged:
Access level
Advanced user
Installer 1
Installer 2
Access level
Advanced user
Installer 1
Installer 2
Expert
Access level
Installer 1
Installer 2
Expert
Access level
Installer 2
Expert
Onceanaccesslevelisselectedthenthe
display will allow the current access level
codetobeentered.Eachaccesslevelhas
itsowninitialcode:
Advanced user
####
Defaultcode2222
Installer 1
####
Defaultcode3333
Installer 2
####
Defaultcode4444
Once the correct code has been entered
the following conrmation screen will be
displayedforashortperiod,dependingupon
whichaccesslevelwasselected:
Installer 1
Installer 1
Conrm

8
3.4.6 Menu - Conguration
Allmenusandsettingwillnowbeavailable
for that particular access level. There will
now also be the chance to reconfigure
differentfunctionswithinthesystem:
Conguration
General
Recommission system
Recommission Plant
Conguration
General
Recommission System
Recommission Plant
Recommission Boiler
Conguration
Recommission System
Recommission Plant
Recommission Boiler
Recommission HC
Conguration
Recommission Plant
Recommission Boiler
Recommission HC
Recommission DHW
Conguration
Recommission Boiler
Recommission HC
Recommission DHW
Fault Management
Conguration
Recommission HC
Recommission DHW
Fault management
Conguration
Recommission DHW
Fault management
Depending upon the access level, not all
congurationoptionswillbeavailable.
Once selected, refer to the Conguration
sectionbelowforguidance.
3.4.6.1 Fault Management
The management section relates to the
installedsystemtoolsratherthantheboiler
oraccessories.Itallowsfortheabilitytoset
uprealtimedataloggingofsystemvariables
inordertoallowspecicsiterelatedissues
tobeidentiedandsystemadjustmentsto
bemadetooptimisetheperformanceofthe
iCCS system.
It also allows for the backup conguration
letobeupdatedasamaintenancefunction
whenarecommissionstephasbeencarried
outcausingachangeinanyofthefunctional
modules in the system, Plant, Boiler, HC,
DHW. A full recommission system always
offersabackup.
Backupisonlypossibleinboilercascades
of2ormoreboilerswhereaslavesystem
managerisavailable.
Fault management
Logging
Store backup on dev. no.
Fault management
Logging
Store backup on dev. no.
3.4.6.1.1 Data Logging
Data logging can be activated and de-
activated.Theloggingdatalecanalsobe
cleared.ItisaFirst-InFirst-Outlewitha
xedloggingintervalof5minutes.
The data file can then be downloaded
using the VariSoft utility to a Windows
Personal Computer for analysis as a Comma
SeparatedVariable(.CSV)leType.
Logging
Enable
Reset
Logging can be enabled by setting a ag
usingtheselectkey,atickwillthenappear
in the box showing that logging has been
enabled.
Enable
On/Off
Done
Enable
On/Off
Done
Oncealoggingperiodhasbeencompleted
theenablecanberesetinthesameway,
thenthedatadownloaded,andthestore
cleared.
Logging
Enable
Reset
3.4.6.1.2 Backup Storage, Post
Conguration
Abackupofallcongurationparametersin
acascadetooneormorenominatedslave
boilers (System managers) can be made
post conguration to reect any changes
made.
Thisallowsthesystemtoberestoredeasily
to the original or nal saved conguration
at any point, particularly if a master boiler
systemmanagerhashadtobereplaced.
Store backup on dev. no.
2
Done
Store backup on dev. no.
2
Done

9
3.5 Menu – Boiler
Theboilermenuhasthefollowingoptions,
thereareotheroptionsbutthesearehidden
fromtheUser/Installer:
Boiler menu
Status
Service
Settings
Boiler menu
Status
Service
Settings
Flue offset
Boiler menu
Service
Settings
Flue offset
Hours run
Boiler menu
Settings
Flue offset
Hours run
Faults
Boiler menu
Flue offset
Hours run
Faults
Boiler menu
Hours run
Faults
3.5.1 Menu – Boiler - Status
Thestatussubmenusgiveyou access to
checkthecurrentcongurationoftheboiler.
Italsoallowsyoutoseethecurrentrealtime
valuesoftheboiler.
Thestatusmenuhasthefollowingoptions:
Status
Conguration
Real time values
Status
Conguration
Real time values
3.5.2 Menu – Boiler – Status -
Conguration
The conguration menu has the following
options:
Conguration
Inputs
Outputs
Parameters
Conguration
Inputs
Outputs
Parameters
Conguration
Outputs
Parameters
3.5.3 Menu – Boiler – Status –
Conguration - Inputs
Theinputsmenuhasthefollowingoptions:
Conguration
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
menuallowsyoutoselectwhichconguration
parametersyouwanttodisplay:
Boiler 1
Demand control
Temperature sensors
Other sensors
Boiler 1
Demand control
Temperature sensors
Other sensors
Boiler 1
Temperature sensors
Other sensors
Demand Control
Whenthemenu option Demand control is
selected the following screen will now be
displayed,itemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled to
showallvalues:
Demand Control
SL1: - -
SL2: DHW1 Boiler 1
OT1: HC1 Boiler 1.1
Demand Control
SL1: - -
SL2: DHW1 Boiler 1
OT1: HC1 Boiler 1.1
OT2: - -
Demand Control
SL2: DHW1 Boiler 1
OT1: HC1 Boiler 1.1
OT2: - -
0-10V: - -
Demand Control
OT1: HC1 Boiler 1.1
OT2: - -
0-10V: - -
Demand Control
OT2: - -
0-10V: - -
Temperature Sensors
WhenthemenuoptionTemperaturesensors
isselectedthefollowingscreenwillnowbe
displayed,itemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled to
showallvalues:
Temperature sensors
DHW/Room2: - -
Flue: - -
H/X: Yes
Temperature sensors
DHW/Room2:- -
Flue: - -
H/X: Yes
Header: - -
Temperature sensors
Flue: - -
H/X: Yes
Header: - -
Outside: - -
Temperature sensors
H/X: Yes
Header: - -
Outside: - -
Room1: - -
Temperature sensors
Header: - -
Outside: - -
Room1: - -

10
Temperature sensors
Outside: - -
Room1: - -
Other Sensors
When the menu option Other sensors is
selected the following screen will now be
displayed,itemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled to
showallvalues:
Other Sensors
WPS: Switch
WFS: - -
Other Sensors
WPS: Switch
WFS: - -
3.5.4 Menu – Boiler – Status –
Conguration - Outputs
Theoutputsmenuhasthefollowingoptions:
Inputs
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
menuallowsyoutoselectwhichconguration
parametersyouwanttodisplay:
Boiler 1
PWM/0-10V (Boiler pump)
MFR1 (HC1 pump)
MFR2 (DHW pump)
Boiler 1
PWM/0-10V ()
MFR1 (HC1 pump)
MFR2 (DHW pump)
MFR3 (Boiler on indicator)
Boiler 1
MFR1 (HC1 pump)
MFR2 (DHW pump)
MFR3 (Boiler on indicator)
MFR4 (Boiler Fault indicator)
Boiler 1
MFR2 (DHW pump)
MFR3 (Boiler on indicator)
MFR4 (Boiler Fault indicator)
Boiler 1
MFR3 (Boiler on indicator)
MFR4 (Boiler Fault indicator)
3.5.5 Menu – Boiler – Status –
Conguration - Parameters
The parameters menu has the following
options:
Parameters
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
menuallowsyoutoselectwhichconguration
parametersyouwanttodisplay:
Boiler 1
Soft start time
Flue type
Boiler 1
Soft start time
Flue type
Onceselectedtheparametersettingwillbe
displayed:
Soft start time
30.0sec
Flue type
Standard
3.5.6 Menu – Boiler – Status – Real
time values
TheRealtimevaluesmenuhasthefollowing
options:
Real time values
Inputs
Sensors
Outputs
Real time values
Inputs
Sensors
Outputs
Real time values
Sensors
Outputs

11
3.5.7 Menu – Boiler – Status – Real
time values - Inputs
Theinputsmenuhasthefollowingoptions:
Inputs
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
screen will display the current Real time
valuesfortheconguredInputs,onceagain
itemsthatarenotconguredwillbeshown
withnovaluebutwith2dashestoindicate
this, the list can be scrolled to show all
values:
Boiler 1
SL1: Off
SL2: On
0-10V: - -
Boiler 1
SL1: Off
SL2: On
0-10V: - -
OT1: 10.0ºC
Boiler 1
SL2: On
0-10V: - -
OT1: 10.0ºC
OT2: - -
Boiler 1
0-10V: - -
OT1: 10.0ºC
OT2: - -
Cap. Setp.: 0%
Boiler 1
OT1: 10.0ºC
OT2: - -
Cap. Setp.: 0%
HC temp. setp.: 0.0ºC
Boiler 1
OT2: - -
Cap. Setp.: 0%
HC temp. setp.: 0.0ºC
DHW temp. setp.: 0.0ºC
Boiler 1
Cap. Setp.: 0%
HC temp. setp.: 0.0ºC
DHW temp. setp.: 0.0ºC
Max lim. Down.: 100.0ºC
Boiler 1
HC temp. setp.: 0.0ºC
DHW temp. setp.: 0.0ºC
Max lim. Down.: 100.0ºC
Boiler 1
DHW temp. setp.: 0.0ºC
Max lim. Down.: 100.0ºC
3.5.8 Menu – Boiler – Status – Real
time values - Sensors
Theinputsmenuhasthefollowingoptions:
Sensors
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
screen will display the current Real time
values for the congured Sensors, once
againitemsthatarenotconguredwillbe
shownwithno value but with 2 dashesto
indicatethis,thelistcanbescrolledtoshow
allvalues:
Boiler 1
Flame: Off
Flow temp.: 37.5ºC
Return temp.: 33.0ºC
Boiler 1
Flame: Off
Flow temp.: 37.5ºC
Return temp.: 33.0ºC
H/X temp.: 48.3ºC
Boiler 1
Flow temp.: 37.5ºC
Return temp.: 33.0ºC
H/X temp.: 48.3ºC
Flue temp.: - -
Boiler 1
Return temp.: 33.0ºC
H/X temp.: 48.3ºC
Flue temp.: - -
Outside temp.: - -
Boiler 1
H/X temp.: 48.3ºC
Flue temp.: - -
Outside temp.: - -
WPS: On
Boiler 1
Flue temp.: - -
Outside temp.: - -
WPS: On
WFS: - -
Boiler 1
Outside temp.: - -
WPS: On
WFS: - -
APS: Off
Boiler 1
WPS: On
WFS: - -
APS: Off
Safety interlock: On
Boiler 1
WFS: - -
APS: Off
Safety interlock: On
Boiler 1
APS: Off
Safety interlock: On
3.5.9 Menu – Boiler – Status – Real
time values - Outputs
Theinputsmenuhasthefollowingoptions:
Outputs
Boiler 1
Boiler 2
Depending upon how many boilers are
conguredinthecascade,theywillappear
hereinasequentiallist.
Onceaboilerisselected,thenthefollowing
screen will display the current Real time
values for the configured Outputs, once
againitemsthatarenotconguredwillbe
shownwithno value but with 2 dashesto
indicatethis,thelistcanbescrolledtoshow
allvalues:
Boiler 1
PWM/0-10V: 0%
MFR1: Off
MFR2: Off
Boiler 1
PWM/0-10V: 0%
MFR1: Off
MFR2: Off
MFR3: Off
Boiler 1
MFR1: Off
MFR2: Off
MFR3: Off
MFR4: Off
Boiler 1
MFR2: Off
MFR3: Off
MFR4: Off
Boiler 1
MFR3: Off
MFR4: Off

12
3.5.10 Menu – Boiler - Service
Theservicesubmenusgiveyoutheoption
toruntheboilerselectedatMin,Maxand
Variable capacity.
The service menu has the following three
options:
Service
Service min
Service max
Service variable
Service
Boiler 1
Boiler 2
All boilers
Oncetheboilerisselectedthentheservice
interval will start and the boiler will run in
servicemodeattheselectedcapacityfora
maximumof10minutes.Ifyouwishtoabort
servicemode,justusethebackkey.
The following screens will be displayed
duringservicemode:
Boiler 1 Service
Operation: Service min
Flow temp: 40.2ºC
Capacity: 30%
Boiler 1 Service
Operation: Service max
Flow temp: 40.2ºC
Capacity: 100%
When service variable is selected, an
additionalparameterneedstobeset.The
followingmenuwillbedisplayed:
Service variable
Set capacity
Start service var. capacity
Set capacity
Boiler 1
Boiler 2
All boilers
Thevariableservicemodecapacityforthe
selectedboilercannowbeset:
Boiler 1 Capacity
90%
Oncethishasbeenadjustedandconrmed
bytheselectkeythenthebackkeycanbe
usedtoreturntotheServicevariablemenu:
Service variable
Set capacity
Start service var. capacity
Oncetheboilerisselectedthentheservice
interval will start and the boiler will run in
servicemodeattheselectedcapacityfora
maximumof10minutes.Ifyouwishtoabort
servicemode,justusethebackkey.
Start service var. capacity
Boiler 1
Boiler 2
All boilers
The following screens will be displayed
duringservicemode:
Boiler 1 Service
Operation: Service variable
Flow temp: 40.2ºC
Capacity: 90%
Once the boiler has lit and ramped up to
capacity,thisislimitedtothesettingmade.
3.5.11 Menu – Boiler – Settings
Thesettingssubmenuallowsadjustmentof
boilerspecicvariables.
Settings
Boiler 1
Boiler 2
Boiler 1
Boiler pump
When the boiler pump is controlled by
the PWM/0-10V modulating control, the
parametersforthepumpmaybeset:
Boiler pump
Operating mode
Min. Boiler pump capacity
Max. Boiler pump capacity
Boiler pump
Operating mode
Min. Boiler pump capacity
Max. Boiler pump capacity
Standby pump capacity
Boiler pump
Min. Boiler pump capacity
Max. Boiler pump capacity
Standby pump capacity
Inertia delta temp.
Boiler pump
Max. Boiler pump capacity
Standby pump capacity
Inertia delta temp.
Diff. temp. ow/return
Boiler pump
Standby pump capacity
Inertia delta temp.
Diff. temp. ow/return
Overrun
Boiler pump
Inertia delta temp.
Diff. temp. ow/return
Overrun
Boiler pump
Diff. temp. ow/return
Overrun
Note:Dependingontheselectedoperating
mode additional parameters may be present
or omitted.

13
3.5.12 Boiler Pump Operating Mode
The boiler pump can be controlled in one
fortwoways.
Capacity control means that the pump speed
followstheburnercapacityproportionallybetween
minimum capacity/minimum pump speed and
maximumcapacity/maximumpumpspeed.
Temp. Diff. Control means that the pump
speediscontrolledtomaintainaxedboiler
owtoreturntemperaturedifferential.
Operating mode
Capacity control 
Temp. Diff. Control 
Operating mode
Capacity control 
Temp. Diff. Control 
3.5.13 Boiler Pump Overrun time
The boiler pump overrun time can be
adjustedifrequired.
Overrun
2minutes
Done
Overrun
2minutes
Done
3.5.14 Menu – Boiler – Flue offset
The ue offset parameter allows adjustment
of the boiler specific cascade flue setting.
Theueoffsetisanincreaseintheminimum
burnercapacitytoensurethatthecascadeue
pressure or an unpowered ue damper can
beovercomesafelyandavoidanyriskofthe
burnergoingoutattheminimumboilercapacity.
Whenamultilineuesystemisselectedduring
congurationthisparameterisenabled,ithasa
predeterminedminimumalreadyappliedwhich
isrequiredfortheoptionaluekitthatcanbe
suppliedfortheboiler.
Flue offset
12%
Done
3.5.15 Menu – Boiler – Hours run
Thehoursrunscreenshowthenumberofsuccessful
burnerstartsandthenumberoffullburneroperating
hoursforeachboilerinthecascade:
Hours run
Boiler 1
Boiler 2
Hours run
Ignitions: 12
Burner: 2 hours
3.5.16 Menu – Boiler – Faults
Thefaulthistory,summaryanddetail,ofeach
boiler in the cascade can be interrogated,
thiscanalsobereset:
Faults
Summary
Show detail
Reset
3.5.17 Menu – Boiler – Faults – Summary
On selecting which boiler you want to
interrogate, the system will read back the
fault summary and display:
Boiler 1
Fault 09 : Count 14
Fault 10 : Count 11
Fault 51 : Count 5
Thelistcanbescrolledandanyfaultselected
willthenshowthespecicfaultdescription:
Fault 09
Outside thermistor defect
(open/short)
3.5.18 Menu – Boiler – Faults – Show
detail
On selecting which boiler you want to
interrogate,thesystemwillthenreadback
thefaultdetailanddisplay:
Boiler 1
09/09/2019, 09:13 Fault 07
09/09/2019, 09:13 Fault 01
04/09/2019, 09:13 Fault 23
Thelistcanbescrolledtoseethelast10
itemsinthefaulthistorywithdateandtime.
3.5.19 Menu – Boiler – Faults – Reset
By selecting the boiler which you want to
resetthefaultinformation,youthenthefault
summaryanddetailsforthatspecicboiler.It
maytakesometimeforthefaultinformation
toclearasthisprocessisaggedforaction
atthenextavailabletimeslot.
3.6 Menu – Plant
Theplantmenuhasthe following options,
thereareotheroptionsbutthesearehidden
fromtheUser/Installer:
Plant
Status
Operating mode
Settings
Plant
Status
Operating mode
Settings
Time clock
Plant
Operating mode
Settings
Time clock
Holiday programme
Plant
Settings
Time clock
Holiday programme
Plant
Time clock
Holiday programme
3.6.1 Menu – Plant - Status
The status sub menus give you access to
seethecurrentrealtimevaluesoftheplant.
Thestatusmenuhasthefollowingoptions:
Status
Real time values
3.6.2 Menu – Plant – Status – Real
time values
TheRealtimevaluesmenuhasthefollowing
options:
Real time values
Demand inputs
Sensors
Outputs
Real time values
Inputs
Sensors
Outputs
Real time values
Sensors
Outputs

14
3.6.3 Menu – Plant – Status – Real time
values – Demand inputs
Onceinputsisselected,thenthefollowing
screen will display the current Real time
valuesfortheconguredInputs,onceagain
itemsthatarenotconguredwillbeshown
withnovaluebutwith2dashestoindicate
this, the list can be scrolled to show all
values:
Demand inputs
0-10V: - -
SL1: Off
OT1: - -
Demand inputs
0-10V: - -
SL1: Off
OT1: - -
Plant setp.: 0%
Demand inputs
SL1: Off
OT1: - -
Plant setp.: 0%
Plant setp.: 0.0ºC
Demand inputs
OT1: - -
Plant setp.: 0%
Plant setp.: 0.0ºC
Demand inputs
Plant setp.: 0%
Plant setp.: 0.0ºC
3.6.4 Menu – Plant – Status – Real time
values - Sensors
Oncesensorsisselected,thenthefollowing
screen will display the current Real time
values for the configured sensors, once
againitemsthatarenotconguredwillbe
shownwithno value but with 2 dashesto
indicatethis:
Sensors
Plant ow temp.: 37.5ºC
Outside temp.: - -
3.6.5 Menu – Plant – Status – Real time
values - Outputs
Onceoutputsisselected,thenthefollowing
screen will display the current Real time
values for the configured outputs, once
againitemsthatarenotconguredwillbe
shownwithno value but with 2 dashesto
indicatethis:
Outputs
Shared boiler pump: - -
System pump: - -
3.6.6 Menu – Plant – Operating mode
Theplantoperatingmodecanbeset.This
controls the operation of the complete
system, all boilers, all HCs and all DHW
circuits.Theoptionsare:
Operating mode
Off
Operating mode
Standby
Operating mode
Summer
Operating mode
Automatic
Off–Nooperation
Standby–Frostprotectiononly
Summer–NormaloperationbutnoHCs
Automatic–Fullautomaticoperation
3.6.7 Menu – Plant – Settings
The plant settings can be adjusted. The
options are:
Settings
Plant setp. SL1
OT temp. setpoint
Shared boiler pump
Settings
Plant setp. SL1
OT temp. setpoint
Shared boiler pump
Shunt Pump
Settings
OT temp. setpoint
Shared boiler pump
Shunt Pump
System pump
Settings
Shared boiler pump
Shunt Pump
System pump
PIDs
Settings
Shunt Pump
System pump
PIDs
Frost protection
Settings
System pump
PIDs
Frost protection
Boiler pump
Settings
PIDs
Frost protection
Boiler pump
Settings
Frost protection
Boiler pump

15
3.6.7.1 Menu – Plant – Settings – Plant
setp. SL1
Theplantowtemperaturesetpointforthe
SL1inputcanbeadjusted:
Plant setp. SL1
80.0ºC
Done
3.6.7.2 Menu – Plant – Settings – OT
temp. setpoint
Theplantowtemperaturesetpointforthe
OT1inputwhenusedasanOn/Offdemand
canbeadjusted:
OT temp. setpoint
50.0ºC
Done
3.6.7.3 Menu - Plant - Settings - Shared
Boiler Pump/System Pump/Shunt Pump
When congured the various pumps can
haveparametersthataffectplantoperaiton
set withing this menu.  The shared boiler
pum, Shut pump and system pump can
all have their maximum speed settings
adjusted.
Shared boiler pump
Maximum speed
Maximum speed
100%
Done
Shunt Pump
Maximum speed
Maximum speed
100%
Done
System Pump
Maximum speed
Maximum speed
100%
Done
3.6.7.4 Menu - Plant - Settings - PIDs
Conguration
PIDs
Conguration
The plant cascade control PIDs can be set
to compensate for any performance related
issuesthatarecausedbytheHydraulicdesign
ofthesystem,theNormalsetareoptimised
forthestandardframeandheaderinstallation.
The PIDs can be adjusted by the Installer
(Level2)tobeFasterorSlowerinresponse
timetotheNormalsettings.TheseFasterand
Slowersettingsaretolerancewithin10%of
thenominalvalues.
Forhydraulicsystemsthatcauseafasterload
capacitychangeintheheaderthentheFaster
responsetimePIDsshouldbeselected,fora
hydraulicsystemwhichcausesaslowerload
capacitychange,thentheSlowerresponse
timePIDsshouldbeselected.
Conguration
Normal 
Fast Response 
Slow response 
Conguration
Normal 
Fast Response 
Slow response 
Manual 
Conguration
Fast Response 
Slow response 
Manual 
Done
Conguration
Slow Response 
Manual 
Done
Oncethesettinghasbeenselected,conrm
thissettingbyselectongdone.
Conguration
Manual 
Done
3.6.7.5 Menu – Plant – Settings – Frost
protection
The plant frost protection temperature set
point,asmeasuredattheheaderthermistor,
canbeadjusted:
Frost Protection
Minimum ow temperature
Minimum ow temperature
5.0ºC
Done
3.6.7.6 Menu - Plant - Settings - Boiler
Pump
The boiler pump function can have the
followingplantrelatedparametersadjusted:
Boiler pump
Operating mode
Min. Boiler pump capacity
Max Boiler pump capacity
Boiler pump
Operating mode
Min. Boiler pump capacity
Max Boiler pump capacity
Standby pump capacity
Boiler pump
Min. Boiler pump capacity
Max Boiler pump capacity
Standby pump capacity
Inertia delta temp.
Boiler pump
Max. Boiler pump capacity
Standby pump capacity
Inertia delta temp.
Diff. temp. ow/return
Boiler pump
Standby pump capacity
Inertia delta temp.
Diff. temp. ow/return
Boiler pump
Inertia delta temp.
Diff. temp. ow/return

16
3.7 Menu – Heating circuits
Theheatingcircuitsmenuhasthefollowing
options, there are other options but these
arehiddenfromtheUser/Installer:
Heating circuits
Status
Operating mode
Room temperature
Heating circuits
Status
Operating mode
Room temperature
Flow temperature
Heating circuits
Operating mode
Room temperature
Flow temperature
Settings
Heating circuits
Room temperature
Flow temperature
Settings
Time clock
Heating circuits
Flow temperature
Settings
Time clock
Holiday program
Heating circuits
Settings
Time clock
Holiday program
Heating circuits
Time clock
Holiday program
3.7.1 Menu – Heating circuits - Status
Thestatussubmenugiveyouaccesstosee
thecurrentrealtimevaluesoftheheating
circuits.
Thestatusmenuhasthefollowingoptions:
Status
Summary
Real time values
3.7.2 Menu – Heating circuits – Status
- Summary
Thesummarysubmenuliststhecongured
heatingcircuitsthatareconguredandcan
be selected, which then shows the main
valuesfortheheatingcircuit.
Summary
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
HC1 Boiler 1.1
Status: OpenTherm
Operation: Standby
Room setp.: 0.0ºC
Flow setp.: 0.0ºC
3.7.3 Menu – Heating circuits – Status
– Real time values
TheRealtimevaluesmenuhasthefollowing
options:
Real time values
Demand inputs
Sensors
Outputs
Real time values
Demand inputs
Sensors
Outputs
Real time values
Sensors
Outputs
3.7.4 Menu – Heating circuits – Status
– Real time values – Demand inputs
Onceinputsisselectedthescreenwillshow
theconguredlistofheatingcircuits:
Demand inputs
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
Onceaheatingcircuitisselected,thenthe
following screen will display the current
RealtimevaluesfortheconguredInputs,
onceagainitemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled if
requiredtoshowallvalues:
Demand inputs
SL1: - -
OT1: 80ºC
Room setp.: - -
3.7.5 Menu – Heating circuits – Status
– Real time values – Sensors
Once sensors is selected the screen will
showtheconguredlistofheatingcircuits:
Sensors
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
Onceaheatingcircuitisselected,thenthe
following screen will display the current
Realtimevaluesfortheconguredsensors,
onceagainitemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled if
requiredtoshowallvalues:
HC1 Boiler 1.1
Room temp.: 17.8ºC
Outside temp.: - -
Source temp: 37.2ºC
HC1 Boiler 1.1
Room temp.: 17.8ºC
Outside temp.: - -
Source temp: 37.2ºC
HC ow sensor: - -
HC1 Boiler 1.1
Outside temp.: - -
Source temp: 37.2ºC
HC ow sensor: - -
HC1 Boiler 1.1
Source temp: 37.2ºC
HC ow sensor: - -

17
3.7.6 Menu – Heating Circuits – Status
– Real time Values – Outputs
Once outputs is selected the screen will
showtheconguredlistofheatingcircuits:
Outputs
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
Onceaheatingcircuitisselected,thenthe
following screen will display the current
Realtimevaluesfortheconguredoutputs,
onceagainitemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled if
requiredtoshowallvalues:
HC1 Boiler 1.1
Pump/valve: Off
3.7.7 Menu – Heating circuit –
Operating mode
Each heating circuit operating mode can
be set. This controls the operation of the
selectedHC.
Operating Mode
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
Theoptionsare:
HC1 Boiler 1.1
Standby
HC1 Boiler 1.1
Time clock single day
HC1 Boiler 1.1
Time clock multiple days
HC1 Boiler 1.1
Day
HC1 Boiler 1.1
Night
Standby–Frostprotectiononly
Timeclocksingleday–Normaloperation,
timed
Timeclockmultipleday–Normaloperation,
timed
Day–Normaloperation,continuousdaymode
Night–Normaloperation,continuousnight
mode
3.7.8 Menu – Heating circuit – Room
temperature
Eachheatingcircuittargetroomtemperature
can be set for different operating modes for
theselectedHeatingcircuit.
Room temperature
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
HC1 Boiler 1.1
Room temp day
Room temp night
Room temp holiday
HC1 Boiler 1.1
Room temp day
Room temp night
Room temp holiday
HC1 Boiler 1.1
Room temp night
Room temp holiday
Eachselectedroomtemperature setpoint
canbeadjustedandthenset,theadjustment
screenisleftbypressingthebackbutton:
Room temp day
21ºC
3.7.9 Menu – Heating circuit – Flow
temperature
Each heating circuit ow temperature can
besetfordifferentoperatingmodesforthe
selectedHeatingcircuit.
Flow temperature
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
HC1 Boiler 1.1
Flow temp day
Flow temp night
Flow temp holiday
HC1 Boiler 1.1
Flow temp day
Flow temp night
Flow temp holiday
HC1 Boiler 1.1
Flow temp night
Flow temp holiday
Eachselectedowtemperaturesetpointcan
be adjusted and then set, the adjustment
screenisleftbypressingthebackbutton:
Flow temp day
60ºC
ThislimitstheowtemperatureintoaHC.
3.7.10 Menu – Heating circuit – Settings
Eachheatingcircuithasanumberofsettings
thatcanbeadjustedfortheselectedHeating
circuit.
Settings
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
HC1 Boiler 1.1
Preheat
Heating limit
Room temp. switch diff.
HC1 Boiler 1.1
Preheat
Heating limit
Room temp. switch diff.
Pump
HC1 Boiler 1.1
Heating limit
Room temp. switch diff.
Pump
Heating curve
HC1 Boiler 1.1
Room temp. switch diff.
Pump
Heating curve
Frost protection
HC1 Boiler 1.1
Pump
Heating curve
Frost protection
HC1 Boiler 1.1
Heating curve
Frost protection

18
3.7.11 Menu – Heating circuit – Settings
- Preheat
Thiscontrolsthepreheatcompensationfora
givenheatingcircuit,ifenabledthiswillbring
ondemandfromthatheatingcircuitpriorto
an increase in temperature set point. E.g.
fromnighttodaymode.Thetimeallowedfor
preheatislimitedbytheMaximumpreheat
time, this ensures that the heating circuit
demandcanonlystartwithinthattimevalue
and not start any earlier.
Preheat can be enabled for the selected
HC and the maximum allowable preheat
time set.
Preheat
Preheat switch
Maximum preheat time
Preheat
On/Off 
Preheat
On/Off 
Preheat
Preheat switch
Maximum preheat time
Preheat
120minutes
3.7.12 Menu – Heating circuit – Settings
– Heating limit
Thisensuresthattheheatingisnotswitched
on unnecessarily if the average outside
temperature, e.g. during the summer
months,ishigherthantheroomtemperature
setpoint in day mode.
Heating limit can be enabled for the
selected Heating Cirucit and the heating
limittemperaturesetpointdened.
Heating limit switch
On/Off 
Heating limit switch
On/Off 
Heating limit temperature
19ºC
3.7.13 Menu – Heating circuit – Settings
– Room temp. switch diff.
This sets the switching differential for the
Heating Ciruit room sensor. The value
ensures that the Heating Circuit does not
continuouslycycledemandintothesystem.
Room temp. switch diff.
1ºC
3.7.14 Menu – Heating circuit – Settings
– Pump
Thepumpforeachindividualheatingcircuit
has a number of settings. Some relate to
speedifcongured for control by a 0-10V
output.
Pump
Overrun time
Overrun speed
Maximum speed
Overrun time
10secs
Overrun speed
70%
Maximum speed
100%
3.7.15 Menu - Heating Circuit -
Settings - Heating Curve
The heating curve parameters can be
adjustedtosuittheapplicaitonifrequired.
Heating curve
Slope
Parallel shift
Room inuence
Heating curve
Slope
Parallel shift
Room inuence
Heating curve
Parallel shift
Room inuence
Theslopeofthecurvehasadefaultsetting
of2.60canbeadjustedbetween0.25and
4.00, see the associated data sheet for
examplecurves.Thisslopecontributestothe
adjustmentsoftheowsetpointinrelation
totheoutsidetemperature
Thecurveparallelshifthasadefaultsetting
of0.0ºC,andthiscanbeadjustedbetween
-50.0ºCand50.0ºC.Thisoffsetadjuststhe
curvevertically.
The room influence factor has a default
settingof25%andcanbeadjustedbetween
0and100%.Theroominuenceproportions
theeffectbetweenoutsidetemperatureand
roomtemperatureontheowsetpoint.
Slope
2.6
Done
Slope
2.6
Done
Parallel shift
0.0ºC
Done
Parallel shift
0.0ºC
Done
Room inuence
25%
Done
Room inuence
25%
Done

19
3.7.16 Menu – Heating Circuit –
Settings – Frost protection
Heatingcircuitfrostprotectionoperationcan
be triggered by a number of measured real
timevalues:
Frost protection
Flow temperature
Outside temperature
Room temperature
Eachofthesehasatriggersetpointanda
hysteresis value above which the function
is once again deactivated. E.g. Room
temperature,iftheactualroomtemperature
dropsbelowthetemperaturesetpointvalue
thenHeatingCircuitwillcreateademandinto
thesystem.Itwillonlyremovethisdemand
oncetheactualroomtemperaturehasrisen
abovethisvalue,plusthehysteresissetting.
Room temperature
Temperature
Hysteresis
Temperature
6ºC
Hysteresis
2ºC
3.7.17 Menu – Heating Circuit –Time
clock
Each heating circuit can have its own
individual time programme. Refer to the
Plantsectionforguidanceonhowthisisset.
3.7.18 Menu – Heating circuit –
Holiday programme
Each heating circuit can have its own
individualholidayprogrammes.Refertothe
Plantsectionforguidanceonhowthisisset.
3.8 Menu – DHW
DHW
Status
Operating mode
Tank temperature
DHW
Status
Operating mode
Tank temperature
Settings
DHW
Operating mode
Tank temperature
Settings
Time clock
DHW
Tank temperature
Settings
Time clock
Holiday program
DHW
Settings
Time clock
Holiday program
DHW
Time clock
Holiday program
3.8.1 Menu – DHW - Status
Thestatussubmenugiveyouaccesstosee
thecurrentrealtimevaluesoftheDometic
HotWatercircuits.
Thestatusmenuhasthefollowingoptions:
Status
Summary
Real time values
3.8.2 Menu – DHW – Status - Summary
Thesummarysubmenuliststhecongured
Dometic Hot Water circuits that are
conguredandcanbeselected,whichthen
showsthemainvaluesfortheDomesticHot
Watercircuit.
Summary
DHW1 Boiler 1
DHW1Boiler 1
Status: Standby
Tank temperature: 21.1ºC
Flow setpoint: 23.0ºC
Pump speed: 0 %
3.8.3 Menu – DHW – Status – Real
time values
TheRealtimevaluesmenuhasthefollowing
options:
Real time values
Demand inputs
Sensors
Outputs
Real time values
Inputs
Sensors
Outputs
Real time values
Sensors
Outputs
3.8.4 Menu – DHW – Status – Real time
values – Demand inputs
Onceinputsisselectedthescreenwillshow
the congured list of Domestic Hot Water
circuits:
Demand inputs
DHW1 Boiler 1
Once a DHW circuit is selected, then the
following screen will display the current
RealtimevaluesfortheconguredInputs,
onceagainitemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled if
requiredtoshowallvalues:
DHW1 Boiler 1
SL2: On
OT1: - -
Tank setpoint: 8ºC
DHW1 Boiler 1
SL2: On
OT1: - -
Tank setpoint: 8ºC
Flow setpoint: 8ºC
DHW1 Boiler 1
OT1: - -
Tank setpoint: 8ºC
Flow setpoint: 8ºC
DHW1 Boiler 1
Tank setpoint: 8ºC
Flow setpoint: 8ºC

20
3.8.5 Menu – DHW – Status – Real time
values – Sensors
Once sensors is selected the screen will
show the congured list of Domestic Hot
Watercircuits:
Sensors
DHW1 Boiler 1
Once a DHW circuit is selected, then the
following screen will display the current
Realtimevaluesfortheconguredsensors,
onceagainitemsthatarenotconguredwill
beshownwithnovaluebutwith2dashes
to indicate this, the list can be scrolled if
requiredtoshowallvalues:
DHW1 Boiler 1
Tank temperature: 45.6ºC
3.8.6 Menu – DHW – Status – Real time
values – Outputs
Once outputs is selected the screen will
show the congured list of Domestic Hot
Watercircuits:
Outputs
DHW1 Boiler 1
Once a Domestic Hot Water circuit is
selected, then the following screen will
displaythecurrentRealtimevaluesforthe
conguredoutputs,onceagainitemsthatare
notconguredwillbeshownwithnovalue
butwith2dashestoindicatethis,thelistcan
bescrolledifrequiredtoshowallvalues:
DHW1 Boiler 1
DHW pump/valve: Off
3.8.7 Menu – DHW – Operating Mode
EachDomesticHotWatercircuitoperating
modecanbeset.Thiscontrolstheoperation
oftheselectedDomesticHotWatercircuit.
Operating mode
HC1 Boiler 1.1
HC2 Boiler 2.1
HC3 Boiler 2.2
Theoptionsare:
DHW Boiler 1
Standby
DHW Boiler 1
Time clock single day
DHW Boiler 1
Time clock multiple days
Standby–Frostprotectiononly
Timeclocksingleday–Normaloperation,timed
Timeclockmultipleday–Normaloperation,
timed.
3.8.8 Menu – DHW – Tank temperature
EachDomesticHotWatercircuittargettank
temperature can be set for different operating
modesfortheselectedDomesticHotWater
circuit.
Tank temperature
DHW1 Boiler 1
DHW1 Boiler 1
Tank temp day
Tank temp night
Tank temp holiday
Each selected tank temperature set point
canbeadjustedandthenset,theadjustment
screenisleftbypressingthebackbutton:
Tank temp day
65ºC
Tank temp night
10ºC
Tank temp holiday
10ºC
3.8.9 Menu – DHW – Settings
Each Domestic Hot Water circuit has a
numberofsettingsthatcanbeadjustedfor
theselectedDHWcircuit.
Settings
HC1 Boiler 1.1
DHW1 Boiler 1
One time boost
Charge pump
Legionella
DHW1 Boiler 1
One time boost
Charge pump
Legionella
Frost protection
DHW1 Boiler 1
Charge pump
Legionella
Frost protection
Early start DHW storage
DHW1 Boiler 1
Legionella
Frost protection
Early start DHW storage
DHW1 Boiler 1
Frost protection
Early start DHW storage
3.8.10 Menu – DHW – Settings – One
time boost
Each DHW circuit can have a one-time
boost to allow for out of hours hot water
requirements. The boost canbe enabled
andatanktemperaturesetforthisfunction.
On/Off
One time boost 
On/Off
One time boost 
Temperature
60ºC