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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IRSC Plus

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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.

[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 (*).

IRSC Plus

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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.

IRSC Plus

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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).

IRSC Plus

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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

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.

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