IRSC Zone - Eib Shop Russia
Contents
1. Precise Control Ho Figure 7 Fan window e Fan Restriction Based on the No of Open Grilles if this parameter is enabled Yes it will be possible to limit the air flow from the A C unit according to the number of open grilles The levels that may be set are Only Medium Only Minimum or Medium and Minimum Depending on the selected option one of the following boxes will be shown or both if Medium and Minimum is selected Force Minimum Fan Under sets the minimum number of grilles that must be open before it is permitted to leave the minimum fan speed object A C Unit Fan Status will reflect the current fan speed see Table 1 Force Medium Fan Under sets the minimum number of grilles that must be open before it is permitted to commute from the medium fan speed to the maximum fan speed object A C Unit Fan Status will reflect the current fan level see Table 1 http www zennio com Technical Support http zennioenglish zendesk com 16 Zennio IRSC Zone percentage AR Table 1 Fan speed percentages Interpolated speed Initial speed percentage Step Control selecting this option Yes brings the A C Unit Fan Step 1 bit object which allows increasing sending the value 1 or decreasing value 0 the fan speed by one level for example under the minimum level of speed if the value 1 is sent via this fan step object the speed will become medium 9 Pr2. in each case When entering the parameter edition of IRSC Zone for the first time the following window will be shown GENERAL GENERAL MODE FAN TEMPERATURE THERMOSTAT RESET N Zones Model 1 Shut down A C Unit if all grilles are N OFF 5s E Additional Bypass No v Startup Zones Update No v Figure 5 Configuration screen by default As shown in Figure 5 the configuration screen is divided into the following main tabs http www zennio com Technical Support http zennioenglish zendesk com 10 Zennio IRSC Zone e General general configuration of the basic functionalities of the air conditioning system to be controlled e Mode mode selection type permitted by the A C machine 2 Fan parameters related to the control of the fan speed of the A C machine 9 Temperature parameters related to the temperature setpoint sent to the A C machine 2 Thermostat selection and configuration of the parameters related to the thermostat both for the Cool and the Heat modes Reset selection of whether to send or not the different states of the A C machine to the KNX bus after a bus power failure or after an application or parameter download All the aforementioned tabs are explained in detail in the next sections 3 2 GENERAL As shown in Figure 5 in the General window it is possible to configure the main parameters of the A C system being contr
3. 2 Zennio IRSC Zone DOCUMENT UPDATES Version Modifications Changes in the application program Compatibility with additional remote controls Revision of texts pS New structure in sections Introduction and Configuration 4 8 Update of the Communication Object Table 29 General revision of texts and styles Changes in the application program New parameter added Zone Update After Reset to allow sending read requests for the states modes and zone setpoints after bus failures Revision of texts and parameter names Function added to let the device store the current mode on bus failures even if the machine was off Inversion of the order of certain read requests sent after reset in order to avoid unexpected behaviours of the device such as when both the normal mode and the extended mode read requests receive a response Implementation of the temperature restriction even when the machine is off not only when it gets switched on Reset of the variables of the PI control algorithm when power failures occur Changes in the application program Option added to send read requests of certain objects to the bus in order to recover the state of the device after a download or a device reset from ETS http www zennio com Technical Support http zennioenglish zendesk com 3 Zennio IRSC Zone 1 INTRODUCTION 1 1 THEIRSC CONTROLLER The IRSC controller from Zennio allows con
4. Zennio Passion for KNX innovation IRSC Zone Ducted Air Conditioner Zoning IR Controller 1 8 Zones ZN1CL IRSC Application program version 1 8 User manual edition 1 8 _a t gt z t co LLI Y 2 WWW zennio com Zennio IRSC Zone Contents DocumentUpdates iniciada dada dd 3 LE o edel Mm 4 LL Hasse RSS CORTO AAA entree eer ttre en tte 4 1 2 RC LONO tarot ooo 4 1 3 IS 5 EEG 01 001 0 eee ee ee eee ee ee ee 7 2 1 General CONCE are 7 SE PAS LZ ON Mee eee 9 3 1 PRUT NNN 9 3 2 NTL 11 3 3 A ccc 14 3 4 aL OCN E ee a dU ag sce TT 16 3 5 A EP E A A 17 o E O EE EE 20 3 7 BS e 21 Annex I Installation Diagram sess en nnn nnnm nennen 23 Annex Il Grille Control rrranannnnannnnnonnanvnnnnvnnanennnnennunennnnennnnennunennnnennunennunennunennunsnnunennunsnnunenne 24 Switehine thie Zones On O ENN 24 Thermostatic Control for Coolers 25 Thermostatic Control for Heating occcooccccncnnnncnncncnnoncnncncnnonconononnonnononcononcononrononnonensonennoss 26 Annex III Practical Example lsessssessseseeeeeen nennen nnnm nennen nennen nnns 27 Annex IV Communication Objects occcocccocncocnncncnnncncnonnonononcnnncnnnnnnonnnnnnnoncnnnrnnnnnnonnnoncnnnnnnnns 29 http www zennio com Technical Support http zennioenglish zendesk com
5. aim of adapting the general setpoint calculation process in certain cases when a heat or cool source is affecting the temperature of the returned air that arrives back to the http www zennio com Technical Support http zennioenglish zendesk com 18 Zennio IRSC Zone machine while it does not affect the ambient temperature of the enabled ZONES Once this parameter is enabled a 2 byte object External Temperature Returned shows up so it can be linked to a KNX sensor refer to Annex I Installation Scheme to better identify the proper location for the sensor in the installation During the calculation of the general setpoint IRSC Zone will consider this return temperature as an additional reference so it will compare it to the setpoints of the different zones that are ON at that moment If the return temperature is higher mode Heat or lower mode Cool than the desired temperatures for the zones IRSC Zone will require the machine to make an extra effort and will send through the A C Unit Setpoint Status object a general setpoint equal to the return temperature increased mode Heat or decreased mode Cool by 1 C It is recommended to read the application example in Annex Ill Practical example for a better comprehension Note it is necessary that the external KNX sensor periodically sends the measured temperature the period should not be more than one hour In case IRSC Zone
6. may be chosen through independent binary objects one per mode or through a sole object only one object for the mode selection Moreover apart from these conventional controls it is possible to enable a simplified control which only permits commuting from Heat to Cold and vice versa e Fan Speed step controlled or through a precise control 2 Thermostat it is possible to enable and configure this functionality for the Heat mode the Cool mode or both The central machine is controlled by taking into account the number of the zones to be acclimatised as well as their own setpoints http www zennio com Technical Support http zennioenglish zendesk com 7 Zennio IRSC Zone e The IRSC Zone application program calculates the temperature setpoint that the central machine needs to be sent depending on what the desired temperatures for the different zones are e It is optionally possible to make this calculation also depend on an additional feedback temperature provided by a KNX sensor located next to the air flow that returns to the machine thus making it possible to correct undesired switch offs or adjustments made by the machine itself when it detects that the ambient temperature of its actual location which may be subject to punctual heat or cold sources is similar to the setpoint although the ambient temperatures of the zones are not 2 Moreover this calculation will also consider the additional temperatur
7. with the IRSC Zone application program carries out the thermostatic control of the installation by receiving data from an external touch panel InZennio Z38i or InZennio Z41 and from a sensor QUAD which measures the temperatures of the different zones enabled in the installation With this input data and according to the configuration parameterised in ETS IRSC Zone will send orders via IR commands to the central A C machine to acclimatise the installation zone by zone as desired To get an optimal acclimatization it is recommended to install the external sensor in the inner side of the returning pipe as closest as possible to the central A C machine http www zennio com Technical Support http zennioenglish zendesk com 23 Zennio IRSC Zone ANNEX II GRILLE CONTROL SWITCHING THE ZONES ON OFF Mode switch Reset of variables Order to switch off Grille gets closed Setpoint Change f Order to switch on Reset of variables Reset of variables Figure 12 Zone ON Zone OFF state diagram While the zone is in the ON state the thermostatic control and the grille control stay active so the temperature setpoint of the zone is taken into account by the device in order to calculate the general temperature setpoint for the air conditioning unit after which it will periodically send when required the pertinent Open or Close orders to the zone grille depending on the particular setpoint and reference t
8. 32 Nave P 8 11 45007 Toledo Spain Tel 34 925 232 002 Fax 34 925 337 310 www zennio com pie C info zennio com KNX Zennio Passion for KNX innovation RoHS
9. 70760 00 25 00 R R Zone x Setpoint Temperature setpoint 27 34 2Bytes O CTR DPT Value Temp 273 00 670760 00 2500 Zonex Setpoint Status Temperature setpoint 51 58 2Bytes CT WU DPT Value Temp 273 00 670760 00 RT R Zone x Reference Temperature External Sensor Temperature http www zennio com Technical Support http zennioenglish zendesk com 29 Zennio IRSC Zone Number Size fe Flags Data Type DPT Functional Range 1stboot P Reboot P Name Function O Auto 1 Heat EN n CT WU 20 105 DPT HVACContrMode 3 Cool 9 Fan om om AIC Unit Modes 1byte 0 Aut 1 Ht 3 Cool 9 Fan 14 Dry 14 Dr EM DEES Ew om 1 Byte CTR 20 105 DPT_HVACContrMode 3 Cool 9 Fan 3 W A C Unit Modes Status 1byte Actual Mode 0 Auto 1 Heat etc 14 Dry CT WU 1 17 DPT Trigger fons EL AC Unit Heat Mode 1 Set Heat mode 0 Nothing 72 Bt CT WU 1 100 DPT Heat Cool 3 R R AC Unit Simplified Mode 0 Cool 1 Heat 73 1Bye I CT WU DPT Scaling 0 100 25 R R AIC Unit Fan Precise 0 Au 1 33 Mi 34 66 Me gt 67 Max CTRWU DPT Value Temp 273 00 670760 00 2500 External Temperature Returned External Sensor Temperature http www zennio com Technical Support http zennioenglish zendesk com 30 Join and send us your inquiries about Zennio devices http zennioenglish zendesk com Zennio Avance y Tecnolog a S L C R o Jarama 1
10. C Unit Modes http www zennio com Technical Support http zennioenglish zendesk com 12 Zennio IRSC Zone gt A C Unit Simplified Mode gt A C Unit Fan Precise gt Temperature Restriction It is important that the communication objects being requested are linked through the same group addresses to those from any external device aware of the state at any time and that the Read flag R is enabled for them Otherwise IRSC Zone may not be able to receive feedback from them Consequently instead of adopting the default values IRSC Zone will listen to the responses received from the KNX environment therefore making it possible that IRSC Zone recovers the control over a particular situation where for instance certain zone setpoints have already been set no matter if successive downloads or resets from ETS take place and without the need of acting again over the user interfaces such as the InZennio Z41 touch panel that let the user set those values and therefore make IRSC Zone aware of them It is recommended however to enable sending the statuses to the bus on start up see section 3 7 so that the actual status of the grilles matches at any time the one assumed or calculated by the controller for example after a download Enabling this parameter also brings the following two gt Delay x 1 sec sets a certain delay to be counted since the end of the start up process of the device before the corresp
11. GURATION This section shows the default configuration the device parameterization starts from for the first time EEE IRSC Zone r Name Object Function zB 1 Areal A C Unit ON OFF Status 0 Off 1 On s 11 Linea 1 A C Unit Setpoint Status Setpoint Temperature sent oa G A C Unit Fan Status 0 Au l 33 Mi 34 66 Med gt 67 Max Zonel ON OFF 0zOff 1 On Zonel ON OFF Status 0 Off 1 On Zone1 Setpoint Setpoint Temperature Zone1 Setpoint Status Setpoint Temperature Zone 1 Grille Control 0 Close 1 Open Zone 1 Grille Status Reception Link with Grille Status Zone 1 Reference Temperature External Sensor Temperature Figure 4 IRSC Zone Default topology The following communication objects appear A C Unit ON OFF Status A C Unit Setpoint Status and A C Unit Fan Status all of which will report basic information about the states of the A C unit ON OFF setpoint and fan speed Seven more objects of different lengths are shown referred to different functionalities that may be controlled for Zone 1 Zone 1 is the only zone enabled by default These 0 are x means 1 here 9 Zone x ON OFF permits turning ON or OFF each of the enabled zones independently Being ON implies a normal function of the zone i e the automatic control of its airing grille and the inclusion of its temperature setpoint into the calculation process of the general temperature setpoint sent to the air conditioning mac
12. INSTALLATION The IRSC controller connects to the KNX bus via the corresponding bus terminals Once the controller is provided with power from the KNX bus both the physical address and the associated application program may be downloaded The element diagram of IRSC is shown in Figure 2 1 KNX Connector 2 Programming LED 3 Programming Button 4 Aerial Connector 5 IR Emitter 6 Socket for the Aerial Figure 2 IRSC Element diagram These elements are described next 2 Programming Button 3 a short press on this button sets the device into the programming mode making the associated LED 2 light in red If this button is held while plugging the device into the KNX bus IRSC enters the Safe Mode 9 IR Emitter 5 infrared flashing diode to send commands to the air conditioning system It must be placed in front of the IR receiver of the A C unit see Figure 3 http www zennio com Technical Support http zennioenglish zendesk com 5 Zennio IRSC Zone 2 Socket for the Aerial Connector 6 slot for the insertion of the aerial connector through which the IR commands are outputted from IRSC Figure 3 shows how to locate the IR Emitter 5 in front of the climate system IR receiver MK Figure 3 IRSC A C unit interface Once IRSC is connected and properly parameterised it will be possible to operate the A C unit from within the KNX installation for instance from the InZennio Z38i or
13. InZennio 241 touch panels thus offering an easier and more intuitive control Note one IRSC is required per ducted air conditioning unit To obtain detailed information about the technical features of IRSC as well as on security and on the installation procedures please refer to the device Datasheet bundled with the original packaging of the device and also available at http Awww zennio com http www zennio com Technical Support http zennioenglish zendesk com 6 Zennio IRSC Zone 2 CONFIGURATION 2 1 GENERAL CONCEPTS The IRSC Zone application program permits controlling air conditioning systems from different manufacturers as if they were being controlled through their own infrared remote controls A correspondence table is available at the Zennio homepage http www zennio com with the codes from 0 to 255 corresponding to the different remote controls that can be emulated This number is the first parameter to be set in ETS so that the orders sent by IRSC become particularised for the actual A C unit to be controlled The IRSC Zone application also allows selecting the number of zones that will be controlled by the same central A C machine which can be 1 8 Moreover the following functions of the A C system can be controlled by IRSC Switching ON OFF each of the enabled zones 9 Temperature Setpoint of each enabled zone e Working Mode the desired working mode Automatic Heat Cool Fan Dry
14. Max Temperature establishes the maximum temperature setpoint in C allowed for the Heat mode This value must be in the range 16 30 C Once this option has been enabled the Temperature Restriction 1 bit object becomes available with value 1 by default Temperatures will be subject to the above limits only while the value of this object is 1 The value 0 on the other hand means that the parameterised restriction should be escaped If a setpoint over the maximum limit or under the minimum level is calculated while the temperature restriction is active the setpoint value effectively sent to the A C unit will become truncated to the corresponding limit Note the temperature setpoint sent to the machine may exceed the parameterised restrictions even if the Temperature Restriction object has the value 1 in the case of having parameterised a calibration parameter Increase heat Decrease cool Temperature Sent to the A C Unit by explained below or if the Temperature Returned from External Sensor parameter explained next is enabled Note 2 some particular details apply in case of enabling the temperature restriction together with the Calibration or the External return temperature functions For further details please refer to Annex III Practical example 2 Temperature Returned from External Sensor this parameter can be optionally enabled if a return air duct exists with the
15. RATURE COOL THERMOSTAT Ma THERMOSTAT Cool Mode Grilles will be open if the RESET zone iz ON HEAT THERMOSTAT No Heat mode Grilles will be open if the zone is OM Figure 9 Thermostat window Both the Cool thermostat and the Heat thermostat admit the following configurable parameters Control Type permits selecting one of these options 2 point control or PI control PWM gt 2 Point Control e Lower Upper Hysteresis the desired value in tenths of a degree for the lower and upper hysteresis respectively gt PI Control PWM e Cycle Time value in minutes for the sending period of the PWM control variable during the grille control process e Proportional Band parameter required for calculating the proportional integral function expressed in Kelvin e Integral Time parameter required for calculating the proportional integral function expressed in minutes http www zennio com Technical Support http zennioenglish zendesk com 20 Zennio IRSC Zone Annex Il Grille control includes a brief introduction to these two thermostatic control methods and to what they involve in relation to grille control In addition to obtain detailed information about all these parameters related to the thermostatic control please refer to the specific document Zennio Home Thermostat available at http www zennio com 3 7 RESET From this window it is possible to configure whether to sen
16. d or not to the KNX bus and or to the A C unit the statuses of the different options that have been enabled by parameter after recovering from a bus power failure and or after a device reset or a download from ETS GENERAL MODE FAN Sending statuses to BUS on BUS voltage mm TEMPERATURE recovery iJ THERMOSTAT Sending status ta A C Unit on BUS RESET voltage recovery Mom HEAT THERMOSTAT No Heat mode Grilles will be open if the zone 0 Figure 10 Reset window 9 Sending Statuses to Bus on Bus Voltage Recovery it allows choosing whether to send the status objects of the A C unit to the KNX bus or not after a bus power failure a device reset order from ETS or a download Sending statuses to BUS on BUS voltage v recovery G Sending of grille statuses Ma Delay 3 z 4 I sec x gt Sending of Grille Statuses sets if grille status objects Zone x Grille Status Reception should be sent to the bus in addition to the machine status objects after a bus power failure a device reset from ETS or a download gt Delay time in seconds that IRSC will wait before proceeding with this sending http www zennio com Technical Support http zennioenglish zendesk com 21 Zennio IRSC Zone Sending Status to A C Unit on Bus Voltage Recovery allows choosing whether to send or not the current status values to the A C unit i e through infrared commands after a bus power failure a device rese
17. does not receive any temperature through the Returned Temperature object within 60 minutes it will stop taking into account this external temperature for the calculation process 9 Increase heat Decrease cool temperature sent to the A C unit by sets an additional temperature value calibration in C which will be taken into account while calculating the temperature setpoint that will be sent to the A C unit Depending on the current working mode of the machine Heat or Cool this value will be added or subtracted respectively to the resulting temperature after applying the restrictions and the comparison to the returned temperature if they apply Increase heat Decrease cool temperature sent to the A C Unit by m Fr da Cn fe c3 a 10 12 1 JE Fo A a A To better understand all these concepts an application example has been included in Annex Ill Practical example of this manual http www zennio com Technical Support http zennioenglish zendesk com 19 Zennio IRSC Zone 3 6 THERMOSTAT From the Thermostat window it is possible to enable and configure the thermostat functionality for cooling heating or both In the case of not enabling a certain thermostatic control the one for cooling the one for heating or both the status of the grilles will be determined by the status of their zone zone ON grille open zone OFF grille closed GENERAL THERHOSTAT MODE FAN TEMPE
18. e if parameterised with a value other than zero see Section 3 5 Apart from sending temperature setpoints and other orders to the air machine IRSC is as already stated responsible for controlling the air grilles of the zones which implies selecting and applying an algorithm which depending on the setpoint and reference temperatures of every zone will continuously determine whether the grille of each zone must stay open or not The independent control of these grilles makes it possible in short that a sole machine with a unique temperature setpoint serves each of the zones as convenient no matter if the temperature setpoints of the zones are different All the concepts mentioned so far are explained in detail in section 3 For further details and for a complete example please refer to the Annexes of this manual http www zennio com Technical Support http zennioenglish zendesk com 8 Zennio IRSC Zone 3 ETSPARAMETRIZATION To begin with the parameterization process of the IRSC controller it is necessary once the data base of the product IRSC Zone application program has been imported to ETS to add the device to the project where desired After that one right click on the device will permit selecting Edit parameters in order to start the configuration In the following sections a detailed explanation can be found about the different functionalities of IRSC Zone available in ETS 3 1 DEFAULT CONFI
19. e not assigned a particular value and therefore can be assumed to be initialised with the value O or with the corresponding updated value in case they depend on an external element Sensors etc Moreover if the object is sent or is there an option to send it to the bus write or read requests after a download or a device reset from ETS the marks W or R will be shown respectively for transmissions or read requests Reboot shows the cases where an object is assigned a certain value by the application program after a bus power failure In case the value of such assignment can be parameterised V is shown in column P Objects showing a hyphen are not assigned a particular value and therefore can be assumed to maintain their previous value after the failure or with the corresponding updated value in case they depend on external elements sensors etc Moreover if the object is sent or is there an option to send it to the bus write or read requests after a bus failure the marks W or R will be shown respectively for tansmissions or read requests Number Size fe Flags Data Type DPT Functional Range 1st boot L Reboot Name Function P o tm fol cre sers m m m ACUnt ONOFF Stats 3 m 1 ct wo oerswen o m Zwecowor wm 1m fo ere oerswen on zonex owOFFSaus otro 19 26 2Bytes I CT WU DPT Value Temp 273 00 6
20. e unit through the A C Unit Setpoint Status object This way the air machine will keep generating enough hot air even if its own sensor is measuring an ambient temperature of about 26 5 C To sum up 2 Setpoint comparison gt 26 5 C 49 Restriction gt 24 C External return temperature gt 26 5 C 9 Extra degree because of the external return temperature gt 27 5 C 49 Calibration gt 28 5 C value sent to the machine From that moment IRSC Zone will send the appropriate orders to the grilles in zones Z1 and Z2 according to the parameterised algorithm for the thermostatic control for heating so that the heat generated by the unit is conveniently directed to the zones depending on their setpoint and reference temperatures http www zennio com Technical Support http zennioenglish zendesk com 28 Zennio IRSC Zone ANNEX IV COMMUNICATION OBJECTS Functional range shows the values that with independence of any other values permitted by the bus according to the object size may be of any use or have a particular meaning because of the specifications or restrictions from both the KNX standard or the application program itself 1st boot shows the cases where an object is assigned a certain value by the application program after a device download or a full reset In case the value of such assignment can be parameterised V is shown in column P Objects showing a hyphen ar
21. ecise Control selecting this option Yes brings the A C Unit Fan Precise 1 byte object which allows establishing the value in percentage of the desired fan speed level according to the values shown in Table 1 Step control and Precise control can be jointly enabled so that the fan speed can be controlled in one manner or other at any time as desired 3 5 TEMPERATURE From this window it is possible to configure several parameters related to the temperature setpoint sent to the A C Unit 37 11 J Note that the parameters shown below do not apply in modes Auto Fan or Dry GENERAL TEMPERATURE MODE FAN Temperature Range M m TEMPERATURE fonly for Heat and Cool modes 2 THERMOSTAT Temperature Returned from External M RESET Sensor 2 Increase heat Decrease cool Dec temperature sent to the A C Unit by Figure 8 Temperature window 2 Temperature Range only for Heat and Cool modes it is possible to define limits for the temperature setpoint sent to the machine of each mode http www zennio com Technical Support http zennioenglish zendesk com 17 Zennio IRSC Zone Temperature Range only for Heat and Cool modes res 7 Cool Mode Min Temperature 16 Heat Mode Mas Temperature 30 IN gt Cool Mode Min Temperature establishes the minimum general temperature setpoint in C allowed for the Cool mode This value must be in the range 16 30 C gt Heat Mode
22. emperatures of that zone During this process every time the user changes the zone setpoint as well as whenever the working mode is changed all the variables are reset and the calculation is resumed according to the new mode and the new setpoint If on the contrary a zone switch off order arrives IRSC Zone will close the corresponding grille and will stop considering the setpoint of that zone for the calculation of the A C unit general setpoint While the zone is OFF every mode change order and every setpoint change order will be ignored Only once the zone is switched on again IRSC Zone will resume the corresponding calculation and will send the order to open back the grille if such order is considered to be required 1 As explained in section 3 6 if no thermostatic control has been enabled the grilles will stay open as long as the zone is ON and closed as long as it is OFF http www zennio com Technical Support http zennioenglish zendesk com 24 Zennio IRSC Zone THERMOSTATIC CONTROL FOR COOLING In case the zone is in the ON state and the selected working mode is either Auto Cool Fan or Dry IRSC Zone will base the calculation process on the parameters set by the integrator for the Cool mode on the contrary the parameters of the Heat mode are only taken into account under the Heat mode Among other things such parameterisation determines the algorithm to be used for the temperature control either 2 Point Hy
23. ennioenglish zendesk com 14 Zennio IRSC Zone e Auto destined to let the machine decide by itself how to behave at each moment sending cold air sending hot air 9 Fan destined to generate a simple air flow typically at ambient temperature from the air conditioning machine When this mode begins IRSC Zone keeps the air grilles of every enabled zone permanently open Dry destined to generate a dry air flow typically at ambient temperature from the air conditioner machine so that the humidity in the air is reduced As shown in Figure 6 the Mode window allows configuring the commutation from one mode to another will be performed GENERAL MODE MODE FAM u TEMPERATURE Individual Control No THERMOSTAT nn RESET 1 byte Control No Simplified Control No Figure 6 Mode window 2 Individual Control when this option is selected all the described working modes will be selectable through one specific 1 bit communication this means that 5 objects will be deployed for establishing one of the available modes Auto Cool Fan Heat and Dry by sending the value 1 through them as well as 5 more objects for reflecting the status active not active of every individual mode 9 1 Byte Control when this option is selected the working modes can be controlled through a unique 1 byte communication object A C Unit Modes 1 byte by sending the value corresponding to the mode to be activated It i
24. hine On the other hand when a zone is turned OFF an order to close the grille is sent to the bus after which the setpoint of the zone is not http www zennio com Technical Support http zennioenglish zendesk com 9 Zennio IRSC Zone considered anymore until the zone is turned on again for the calculation of the central setpoint 2 Zone x ON OFF Status indicates the current state ON OFF of the corresponding zone 9 Zone x Setpoint permits receiving orders from the bus to change the desired temperature setpoint in C for the corresponding zone 9 Zone x Setpoint Status indicates the current value in C of the temperature setpoint of the corresponding zone 9 Zone x Grille Control sends orders 0 Close 1 Open to the bus to control the airing grille of the corresponding zone e Zone x Grille Status Reception permits the arrival from the bus of open close orders for the airing grille of the corresponding zone which when appropriate makes the device respond with an updated order to the bus through the Zone x Grille control object 9 Zone x Reference Temperature permits the reception from the bus of a reference temperature for example measured by a sensor installed inside the corresponding zone lf more zones are enabled see section 3 2 the same seven objects will be available 0 for the remaining zones with a different value for x
25. nothing Open grille Close grille Figure 14 Grille behaviour during the 2 point with hysteresis thermostatic control for heating http www zennio com Technical Support http zennioenglish zendesk com 26 Zennio IRSC Zone ANNEX Ill PRACTICAL EXAMPLE The following example is provided with the aim of making it easier to understand the concepts explained in this manual and the parameterization process of the device Suppose a KNX installation as the one in the figure where three zones Z1 Z2 and Z3 are being acclimatised in the Heat mode by an IRSC Zone and an A C unit Also assume that zone Z3 has been switched off and that a maximum temperature of 24 C has been parameterised for the Heat mode and that the Temperature Restriction object has been previously assigned the value 1 IRSC Zone ACTinBOX Classic Hybrid iin nii Zennio amp wx ACTinBOX Classic emn OG S E T4344 Lt i Heat Source e Under these circumstances if the External Temperature Returned parameter is found to be disabled IRSC Zone analyses the temperature setpoints of zones Z1 and Z2 since Z3 has been switched off 9 The general setpoint will be at first the maximum among them 25 C 9 Because of the temperature restriction this will be truncated to 24 C e f furthermore an additional calibration of 1 C has been parameterised for http www zennio com Technical Support ht
26. olled These are e Model sets the code number between 0 and 255 associated to the remote control to be emulated please refer to the correspondence table at http www zennio com e No of Zones selects how many zones are to be acclimatised from 1 to 8 Depending on the number established here seven communication objects will appear associated to each zone those associated to Zone 1 are enabled by default making it possible to send and or receive different orders related to the acclimatization of the zone On Off Setpoint Grille control and reference temperature see section 3 1 2 Shut Down A C Unit if all Grilles are OFF this parameter allows defining the behaviour of the A C machine when the grilles of all the enabled zones are closed If this parameter is enabled Y es when all the grilles are closed i e http www zennio com Technical Support http zennioenglish zendesk com 11 Zennio IRSC Zone all the Zone x Grille Control objects have the value 0 the A C machine will be switched off This option may be interesting for systems where a bypass to avoid excessive overpressures is not available gt Delay to Turn ON A C if any Grille is ON field to set the time in seconds the device will wait before switching on the A C unit after a grille is opened again Zone x Grille Control 1 This option may be interesting for systems with thermally driven grilles Additional Bypass
27. onding read requests are sent to the bus gt Zone Update After Reset if this parameter is enabled the already mentioned read requests will also take place after power failures or after disconnecting and connecting the device Note if one or more particular objects do not get a response to their read requests they will maintain their default values On the other hand if IRSC Zone does receive a response to the read request of the ON OFF Setpoint and Reference Temperature objects before having the response to the read request of the Mode object the calculation of the general setpoint and the grille control will take place by initially assuming the default mode Cool If http www zennio com Technical Support http zennioenglish zendesk com 13 Zennio IRSC Zone afterwards a response is received to the Mode request and it turns to be other than Cool this control will be restarted and typically the unit will be sent new orders while the grille state also changes if needed 3 3 MODE The Mode window allows configuring features related to the selection of the operating mode of the A C machine which is made assuming that the A C machine supports the selection of up to five working modes 2 Cool intended for zone cooling When IRSC Zone receives an order to commute to this mode it sends the corresponding mode switch order to the unit and begins to control the grilles of every zone according to how
28. s also possible to check at any time the current working mode of the A C unit via the A C Unit Mode Status 1 byte 1 byte object 9 Simplified Control when this option is selected the A C Unit Simplified Mode 1 bit object will be enabled lt allows establishing the desired mode Cool mode writing the value 0 in the object or Heat mode writing the value 1 There is no status object associated to this control object The three control types can be enabled jointly making it possible to control the functioning mode by alternative means at any time Note that anyway changing from http www zennio com Technical Support http zennioenglish zendesk com 15 Zennio IRSC Zone one mode to another has two major consequences first the sending of the mode switch order to the machine and second switching IRSC Zone when required from one thermostat and grille control type to another Note the algorithm for controlling the zone airing grilles open close is available in Annex II Grille control In addition section 3 5 and Annex III Practical example explain the calculation process of the general setpoint based on the zone temperature setpoints and the current working mode 3 4 FAN The Fan window allows selecting how the fan speed control of the A C machine will be performed GENERAL FAN MODE Fan restriction based on the no of open Ma TEMPERATURE grilles THERMOSTAT ee RESET Step Control No
29. steresis or PI PWM Modulation The first one 2 Point Hysteresis determines whether to open Zone x Grille control 1 or to close Zone x Grille control 0 the grille according to the diagram shown in Figure 13 No it is cold No No Open grille Close grille Figure 13 Grille behaviour during the 2 point hysteresis thermostatic control for cooling Yes it is hot T rer gt T setpoint Hupper Do nothing Regarding the second method PI Control it consists in the continuous execution of the PI control mathematic algorithm which permanently determines depending on how the setpoint and the reference temperature of the zone differ the proper opening level for the grille Considering that not every grille permits partial opening this percentage is then interpreted as the ratio between the time the grille will stay open and the time it will stay closed given the parameterised cycle time http www zennio com Technical Support http zennioenglish zendesk com 25 Zennio IRSC Zone THERMOSTATIC CONTROL FOR HEATING In an exactly analogous manner the thermostatic control for heating permits selecting between a 2 point with hysteresis control and a Pl control with pulse width modulation In this case the flow diagram for the first one is as shown in Figure 14 Yes T rer lt Tsetront Hiower No it is cold it is hot Do
30. t from ETS or a download gt Delay time in seconds that IRSC will wait before proceeding with this sending Related to device reboots there is also the option to make IRSC Zone send read requests to the bus in order to get updated values of the objects that determine the initial state it should assume when it becomes functional Such option Zone update on start up has been described in section 3 2 Note when the initial sending is enabled from the Reset window having already enabled the Zone Update on Start up parameter from General special attention must be paid while setting the delays of both parameters The purpose of enabling the latter is that IRSC Zone requests state information from the KNX system so it would not make sense that prior to this IRSC Zone had already sent control orders thus overwriting the original state http www zennio com Technical Support http zennioenglish zendesk com 22 Zennio IRSC Zone ANNEX I INSTALLATION DIAGRAM Figure 11 shows a typical diagram of an installation with three different climate zones controlled by an IRSC Zone Setpoint Temperaturez Reference Temp 21 Reference Temp 22 1 Grilles control Reference Temp 73 IRSE Returned Temperature ByPass CENTRAL A C MACHINE External C Zone 1 Probe C Zone 2 Probe 0 Zone 3 Probe RETURNING PIPE Figure 11 Scheme Installation example The IRSC interface programmed
31. the thermostat control for cooling has been parameterised and to whether the reference temperatures are higher or not than the setpoints see section 3 6 as well as Annex ll Grille control and Annex III Practical example In relation to the calculation of the general setpoint mode Cold implies on the one hand switching from one range of accepted temperature setpoints to another range of accepted temperature setpoints see Section 3 5 And on the other hand the fact that the general temperature setpoint must be lower or equal than the coolest of the zone temperature setpoints e Heat intended for zone heating When IRSC Zone receives an order to commute to this mode it sends the corresponding mode switch order to the unit and begins to control the grilles of every zone according to how the thermostat control for heating has been parameterised and to whether the reference temperatures are higher or not than the setpoints see section 3 6 as well as Annex Il Grille control and Annex III Practical example In relation to the calculation of the general setpoint mode Heat implies on the one hand switching from one range of accepted temperature setpoints to another range of accepted temperature setpoints See section 3 5 And on the other hand the fact that the general temperature setpoint must be greater or equal than the hottest of the zone temperature setpoints http www zennio com Technical Support http z
32. the activation Yes of this parameter allows controlling a bypass or additional grille through which the exceeding air conditioned from the installation could be canalised thus preventing over pressure gt Open Bypass if no of Open Grilles Lower or Equal Than defines the maximum permitted number of closed grilles from O to 8 before an order to open the bypass is forced via the Additional Bypass object In other words the bypass will stay open while the number of open grilles is equal or lower than the number set for this parameter For instance if the value 4 is typed here the bypass will stay open while the number of open grilles is 4 3 2 1 or O in the case of O this will be true only if the machine is ON Note that no matter what the value of this parameter is the bypass will stay open if the A C machine is ON and all the grilles are closed 9 Zone Update on Start up permits activating or deactivating the sending of certain read requests to the bus after a download or a device reset order from ETS These requests make it possible for IRSC Zone to assimilate the state of the environment setpoints temperatures modes at the moment of beginning to function Read orders are therefore sent through the following objects for every enabled zone gt Zone x ON OFF gt Zone x Setpoint gt Zone x Reference Temperature Read orders will also be sent through the following control objects if enabled gt AI
33. tp zennioenglish zendesk com 27 Zennio IRSC Zone Increase decrease Temperature Sent to the A C unit an extra degree will be added resulting a final setpoint of 25 C note that the calibration has a higher priority than the parameterised temperature range However since there is a heat source that overheats the air returning to the machine the built in thermostatic control of the A C unit understands that the ambient temperature is high enough even higher than the setpoint which makes the unit stop generating heat even if the ambient temperatures in Z1 and Z2 is different from that measured by the internal sensor of the A C unit To prevent this situation it is convenient to enable the Temperature Returned from External Sensor parameter in ETS as the temperature measured in the return air duct is approximately equal to that registered by the internal sensor of the A C unit For instance 49 External temperature returned 26 5 C IRSC Zone will then look for the maximum among the temperature setpoints of zones Z1 and Z2 and afterwards for the maximum between this 25 C which is truncated to 24 C and the external temperature 26 5 C resulting to be 26 5 C By default this value is then internally increased by one degree 27 5 C when the external temperature function is active And then another degree is added again because of the parameterised calibration 28 5 C Finally the value 28 5 C is sent to th
34. trolling electronic appliances with built in infrared receivers such as air conditioning systems ducted climate units audio video systems by emulating their IR remote controls Three alternate application programs are provided 2 IRSC Plus for controlling Split units e IRSC Open for controlling A V devices IRSC Zone for controlling ducted Cool Heat units with support for climate zoning 1 2 IRSC ZONE The IRSC Zone application allows controlling air cooling heating ducted machines and particularly up to 8 rooms or zones where the air output is regulated by gates or motorised grilles Grilles are the final elements of the air ducts that distribute the air flow from the central unit to every zone IRSC Zone is therefore in charge of two complementary functions e Sending the necessary orders ON OFF temperature fan etc to the central air conditioning machine through infrared commands e Sending the KNX bus open close orders for the external actuators that control the air grilles of the different climate zones In addition IRSC Zone offers compatibility with most air conditioning manufacturers please refer to the Correspondence Table available at http www zennio com http www zennio com Technical Support http zennioenglish zendesk com 4 Zennio IRSC Zone a Zennio Knx IRSC A ZN1CL IRSC 29V LED lt Proc Ce Made in Spain Figure 1 The IRSC Controller 1 3
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