Zennio IRSC Plus User manual

IRSC Plus
Air Conditioning Controller
ZN1CL-IRSC
USER MANUAL
Application program version: [6.12], [8.0]
User manual edition: [8.0]_a
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Contents
Document updates........................................................................................................................ 3
1 Introduction .......................................................................................................................... 4
1.1 The IRSC Controller ....................................................................................................... 4
1.2 Installation..................................................................................................................... 4
1.3 The IRSC Plus Application Program ............................................................................... 6
2 Configuration......................................................................................................................... 7
3 ETS Parameterisation ............................................................................................................ 8
3.1 Default Configuration.................................................................................................... 8
3.2 General Parameters .................................................................................................... 11
3.3 Status........................................................................................................................... 12
3.4 Reset - Initial Configuration......................................................................................... 13
3.5 Reset - Data Update .................................................................................................... 16
3.6 Scenes.......................................................................................................................... 17
3.7 Timers.......................................................................................................................... 19
3.8 Window Sensor ........................................................................................................... 20
3.9 Presence Detector....................................................................................................... 21
ANNEX I. Diagnosing the IR Transmitter ..................................................................................... 22
ANNEX II. Communication objects .............................................................................................. 24

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DOCUMENT UPDATES
(*) Please refer to the updated correspondence table, available at http://www.zennio.com
Version
Changes
Page(s)
[8.0]_a
Changes in the application program:
- Additional split models available for control (*).
-
[6.12]_a
Changes in the application program:
- Additional split models available for control (*).
- Switch-on orders while the window is open are now
ignored.
-
Clarification about the Open Window function.
20
[6.11]_a
Changes in the application program:
- Additional split models available for control (*).
-
[6.10]_a
Changes in the application program:
- Additional split models available for control (*).
-
[6.7]_a
Changes in the application program:
- Additional split models available for control (*).
-
[6.4]_a
Changes in the application program:
- Additional split models available for control (*).
-
[6.1]_a
Changes in the application program:
- Additional split models available for control (*).
-
[5.14]_b
Changes in the application program:
- Improved compatibility with models 13 and 18.
- Method implemented for diagnosing the IR transmitter.
- Additional split models available for control (*).
-

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1INTRODUCTION
1.1 THE IRSC CONTROLLER
The IRSC controller from Zennio is aimed at controlling air conditioning systems
featuring infrared receivers (such as splits, ducted units with an integrated infrared
interface, etc) through the emulation of their IR remote control systems. Therefore,
IRSC combines the following functions into the same device:
Control of the main functionalities of A/C units (On/Off, temperature, mode,
fan speed, etc).
Compatibility with most air conditioning manufacturers (please refer to the
correspondence table, available at: http://www.zennio.com.
Device management through infrared codes:
Split units (application program: IRSC Plus).
A/V systems (application program: IRSC Open).
Ducted cooling/heating machines, with multiple zones to be acclimated
(application program: IRSC Zone).
Figure 1. IRSC controller
1.2 INSTALLATION
The IRSC controller is connected to the KNX bus via the bus connecting terminals.

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Once the controller is provided with power from the KNX bus, both the physical
address and the associated application program may be downloaded.
In Figure 2, the connection scheme of IRSC is shown.
Figure 2. Element Diagram
The functionality of the main elements is described next.
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 goes into
safe mode.
IR emitter (5):infrared flashing diode to send commands to the air
conditioning system. It must be placed in front of the air conditioning IR
receiver (see Figure 1.3).
Air connector Base (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.
Figure 3. IRSC - A/C Unit Interface
1.- KNX Connector.
2.- Programming LED.
3.- Programming Button.
4.- Aerial Connector.
5.- IR Emitter.
6.- Socket for the Aerial Connector.

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Once IRSC is connected and properly parameterised, it will be possible to control the
A/C unit from within the installation (for instance, from the InZennio Z38i or InZennio
Z41 touch panels), thus achieving an easier and more intuitive control.
Note: only one air conditioning unit may be controlled by each IRSC.
To obtain detailed information about the technical features of IRSC, as well as on
security and installation procedures, please refer to the device Datasheet, provided
with the original packaging of the device and also available at http://www.zennio.com.
1.3 THE IRSC PLUS APPLICATION PROGRAM
The IRSC Plus application program has been developed to control common air
conditioning systems via IR commands.
This application allows sending control orders to the A/C system through infrared
commands, with IRSC acting as a KNX-IR interface, as explained in Section 1.1.
The IR commands required to control the different air conditioning systems have been
already preset in the application. It is only necessary to check the IRSC Plus
correspondance table, available at http://www.zennio.com, in order to identify the
remote control model associated to the system.
Important note: there are two available versions of IRSC Plus: 6.12 and 8.0. Please,
check if the remote control wanted to be emulated with IRSC Plus is available for the
version in use. This information is available in the Correspondence Table for IRSC Plus
at www.zennio.com. In case it were needed to change the current version, just
configure and download the right version (please note that a version change might last
for several minutes).

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2CONFIGURATION
The IRSC Plus application program permits controlling air conditioning systems from
different manufacturers as if they were being controlled through the infrared remote
control of the machine.
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.
Moreover, the following functionalities of the A/C system can be configured:
ON/OFF control of the A/C system.
Status Objects, which also work as acknowledgement objects for the orders
sent to the system.
Working Mode: the desired working mode (Automatic, Heat, Cool, Fan, Dry)
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.
Fan Speed: step-controlled or through a precise control.
Possibility of enabling and configuring:
Up to 4 different scenes.
Timed ON/OFF switching.
Energy saving functions, such as window sensor and presence
detection.
All these options are explained in detail in section 3.

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3ETS PARAMETERISATION
To begin with the parameterisation process of the IRSC controller it is necessary, once
the data base of the product (IRSC Plus 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 Plus in ETS.
3.1 DEFAULT CONFIGURATION
This section shows the default configuration the device parameterisation starts from for
the first time.
Figure 4. IRSC Plus. Default Topology
The following communication objects are available by default:
ON/OFF, aimed to receive orders from the bus to switch on or off the A/C
unit.
Temperature, which will receive setpoint temperatures (in ºC) to be sent to
the machine. Moreover, this object can work as a status object, as the “R”
(read) flag is active by default.
Fan [1 byte], aimed to receive orders from the bus to switch the A/C machine
from one fan speed to another (automatic, minimum, medium or maximum,
depending on the range the received value belongs to).

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Mode
Received value
Auto
0%
Min
1% - 33%
Middle
34% - 66%
Maximum
> 66%
Table 1. Fan Speed
Fan [1 bit], aimed to receive orders from the bus to speed up (value “1”) or
down (value “0”) the current air flow. This allows stepping through the
different fan speed levels sequentially, which will be reflected in the value of
the fan status object, if enabled (see section 3.3).
Swing, which is provided for the reception from the bus of orders to control
the “swing” function (if available) of the A/C unit. The slats in the output air
duct permit leading the air flow towards certain directions, and, depending on
the machine, the behaviour may vary slightly. In general, receiving a “1”
through this object will make the slats swing (i.e., perform a progressive
sweep), while one “0” will make them stop. In the case of machines that
permit multiple still positions for the slats, the arrival of the value “0” more
than once will make IRSC send the A/C unit successive orders to switch from
the current position to the next one (position 1 … position n), reverting
the sequence order after reaching the last position.
Modes [1 byte], aimed to receive from the bus orders to switch the A/C unit
from one working mode to another one (automatic, heat, cool, fan or dry,
depending on the received value).
Mode
Received value
Auto
0 (0x00)
Heat
1 (0x01)
Cool
3 (0x03)
Fan
9 (0x09)
Dry
14 (0x0E)
Table 2. Modes (1 byte)
A set of independent binary objects, each destined to switching to a certain
working mode (auto, heat, cool, fan or dry) on the reception of the value “1”,
as an alternative to the 1-byte Modes object, already described.

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Disable Device: binary object that will set IRSC into a standby mode on the
reception of the value “1” from the bus. This prevents IRSC from reacting to
control orders received from the bus –only read requests will be processed–
and from sending IR orders to the A/C unit until the value “0” is received.
Therefore, once a certain state has been set to the A/C unit, sending the
value “1” to this object will lock that state, preventing bus orders from
changing it. This function makes sense, for example, when a centralised
control system sends orders simultaneously to several IRSC controllers, and
therefore to different A/C units. At a certain time (for power saving reasons,
for instance), it may be required that any of them stops reacting to the
centralised control orders, which can be done by sending a “1” to its
corresponding IRSC controller (through the address of the “Disable device”
object).
On the other hand, when IRSC Plus is parameterised for the first time, the following
window will be shown:
Figure 5. Configuration Screen by default
As shown in Figure 5, the configuration screen is divided into the following main tabs:
General Parameters: general features of the air conditioning system being
controlled.
Status: allows enabling and disabling a set of status objects over which it will
be possible to send read requests from externally. These objects will report
information about the current state of the machine and will also work as an
acknowledgement signal of any changes made over this state whenever a
control order is received from the bus.
Reset:allows customising the status of the A/C system after a bus power
failure or after an application program or parameter download, as well as
selecting whether to send or not the updated status objects to the KNX bus.