KLIC-DI SKY
KNX Interface for Commercial A/C Units
ZN1CL-KLIC-DI
USER MANUAL
Application programme version: [2.0]
User manual edition: [2.0]_a
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CONTENTS
Contents ........................................................................................................................................ 2
Document Updates ....................................................................................................................... 3
1 Introduction .......................................................................................................................... 4
1.1 KLIC-DI ........................................................................................................................... 4
1.2 Installation ..................................................................................................................... 5
2 Configuration......................................................................................................................... 8
2.1 Basic Control.................................................................................................................. 8
2.2 Advanced Functionality ................................................................................................. 8
2.3 Testing KLIC-DI from an IR remote .............................................................................. 12
3 ETS Parameterisation .......................................................................................................... 13
3.1 Default Configuration .................................................................................................. 13
3.2 General ........................................................................................................................ 14
3.2.1 Scenes ................................................................................................................. 15
3.2.2 Setpoint restriction ............................................................................................. 16
3.2.3 Auto OFF ............................................................................................................. 17
3.2.4 Error handling ..................................................................................................... 18
3.2.5 Type of Control ................................................................................................... 19
3.2.6 Swing ................................................................................................................... 19
3.2.7 Internal Temperature Sending Time ................................................................... 21
3.2.8 Initial Configuration ............................................................................................ 22
3.2.9 Logic Functions ................................................................................................... 23
3.3 Mode ........................................................................................................................... 24
3.4 Fan ............................................................................................................................... 25
ANNEX I. Communication Objects............................................................................................... 27
ANNEX II: Correspondence with A/C Unit Error Codes ............................................................... 29
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DOCUMENT UPDATES
Version
Changes
Page(s)
Version
Changes
Page(s)
[2.0]_a
Changes in the application programme:
• Improvement of the error handling.
-
[1.14]_b
Clarifications for a correct configuration.
-
[1.14]_a
Changes in the application programme:
• Compatibility with the new remote control of Daikin
BRC1E53A7.
• Changes in the fan speed percentages.
• Minor revision of certain object / parameter names.
-
[1.13]_a
Changes in the application programme:
• Swing control added.
• Improvement of the “Auto-Off” function.
• Custom initialisation after download implemented.
• Simplified Mode Reception object added.
-
[1.12]_a
Changes in the application programme:
• Compatibility with new air-conditioning system models.
• Name changed in parameter “Internal Temp. Sending
Time”.
• Name changed in object “Internal Temperature (Status)”.
-
[1.11]_a
Changes in the application programme:
• Compatibility with new air-conditioning system models
(and their respective functionality).
-
[1.10]_a
Changes in the application programme:
• Improvement of the compatibility with certain models to
prevent communication interruption at the start-up.
-
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1 INTRODUCTION
1.1 KLIC-DI
KLIC-DI is an interface that allows full-duplex communication between a KNX domotic
system and commercial and industrial air-conditioning units, through two possible
application programmes.
KLIC-DI VRV, for industrial A/C systems with a variable refrigerant volume.
KLIC-DI SKY, for other commercial A/C systems.
Because of this bidirectional communication, the air conditioning unit can be
controlled in the same manner as through its own controls, while the real status of the
air-conditioning unit is monitored and periodically sent to the KNX bus to inform other
devices.
KLIC-DI includes the following features, among others:
Bidirectional control of industrial and commercial A/C units.
Control of the main features of the A/C units: On/Off, temperature, mode of
operation, fan speed, swing, etc.
Error identification and management to handle specific A/C unit error
codes as well as any communication errors that may arise.
LED indicator that allows monitoring the bidirectional traffic flow.
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1.2 INSTALLATION
Figure 1. Element scheme
KLIC-DI connects to the KNX bus via the corresponding built-in terminals (1). On the
other hand, this device is connected to the internal PCB board of the A/C unit (P1/P2
connectors), using a 2-wire cable. See Figure 2.
Important: in case of aiming to control the air conditioning both through KLIC-DI and
through the incorporated wired remote control of the actual unit, please refer to the
“Control types” subsection, under section 2.2 in order to ensure that both of them have
been properly configured.
Once the device is provided with power supply from the KNX bus, both the physical
address and the KLIC-DI application programme for commercial A/C systems can be
downloaded.
This device does not need any additional external power as it is entirely powered
through the KNX bus.
The functionality of the main elements is explained below:
Programming Button (3): a short press on this button will set the device into
the programming mode, making the red component of the LED (2) indicator
light up. If the button is held while plugging the device into the KNX bus,
KLIC-DI will go into secure mode, making the red colour of the LED blink
intermittently.
LED Indicator (2): three-colour (red, blue and green) light indicator that
reflects the current state of the device. Apart from showing whether the
1.- KNX Connector
2.- LED Indicator
3.- Programming Button
4.- Input Terminal for the Two-Wire
Communication Cable.
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device is under the programming or secure modes, this LED will also show
react to the communication between KLIC-DI and the A/C unit, which may be
particularly useful during the installation process. The meaning of the different
colour components is explained next:
➢ Red Component (still): KLIC-DI is under the programming mode.
➢ Red Component (blinking): KLIC-DI is under the secure mode.
➢ Green Component (still): KLIC-DI is not connected to the A/C unit, or the
A/C unit is disconnected from the power supply.
➢ Green Component (blinking): transmission or data flow from the A/C
machine towards KLIC-DI.
➢ Blue Component (blinking): transmission or data flow from KLIC-DI
towards the A/C machine.
Note: each colour component works with independence of the others.
Therefore, for example, if KLIC-DI is set into the programming mode being
the A/C unit disconnected, the perceived colour will be typically a still orange,
as the red and green components are lighting (still).
Input Terminal for the Two-Wire Communication Cable (4): slot for the
connection of the two-wire communication cable that will connect KLIC-DI to
the A/C unit. The other end of the cable, therefore, is intended to be
connected to the P1/P2 ports from the PCB board of the internal unit, or from
the wired remote control of the A/C unit.
Figure 2. Connecting KLIC-DI to the P1/P2 Bus (Master Mode).
A/C System
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Figure 3. Connecting KLIC-DI to the P1/P2 Bus with a Wired Remote Control (Slave Mode)
Connection Diagram Legend
A
KLIC-DI
B
Wired control
C
A/C unit
P1-P2
Connection base for the A/C unit
1-2
Zennio input terminal
*
The wired remote control needs to work contrary to the
mode (slave/master) set for KLIC-DI (see section 2.2).
For detailed information about the technical features of KLIC DI, as well as on security
and installation procedures, please refer to the device Datasheet, included within the
device packaging and also available at http://www.zennio.com. Reading the KLIC-DI
installation note, available at the same website, is also encouraged.
Note: sections following this point will focus on the KLIC-DI SKY application
programme for commercial A/C machines, and its specific configuration. Please refer to
the KLIC-DI VRV user manual in case of running that particular application programme.
A/C System
Wired control
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2 CONFIGURATION
2.1 BASIC CONTROL
KLIC-DI allows controlling and monitoring an air-conditioning unit the same way it
would be through the wired remote control provided with it.
Through the KNX bus, the following basic functionalities of the air conditioning unit can
be controlled:
ON/OFF switch of the air-conditioning unit.
Temperature Setpoint between 16 and 32 ºC.
Operation Mode: Auto, Heat, Cool, Fan and Dry.
Fan Speed: configuration of 2 or 3 speed levels.
These functionalities imply changes in the state of the machine, which are periodically
sent to KLIC-DI. When KLIC-DI receives from the machine a state different to the
previous one, it updates the status objects and sends them to the KNX bus.
2.2 ADVANCED FUNCTIONALITY
Apart from basic control functions over the air-conditioning system, KLIC-DI offers
other advanced functionalities that provide added value to the wired remote control:
Scene Configuration: allows establishing a specific parameter combination
to be sent to the machine in order to generate a determined climate ambient.
KLIC-DI allows configuring up to 4 different scenes.
Temporary Switch-Off: allows an automatic and temporary switch-off of the
machine (after a pre-established delay, if set up) when the communication
object associated to this function changes its value. A typical application of
this functionality is linking a window sensor to the automatic switch-off object,
which will make KLIC-DI switch the machine off while the window is open.
Important: check which levels are provided by the A/C unit.
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Setpoint Restriction: temperature setpoints of commercial air conditioning
systems are typically limited to the range 16-32ºC (please refer to the user
manual of the actual unit). This function of the KLIC-DI device allows
configuring custom setpoint ranges in ETS for the Heat and Cool modes,
provided that the custom values stay within the original range. In case of
receiving a temperature command from the KNX bus with a value exceeding
the configured range, the temperature value sent by KLIC-DI to the machine
will be the corresponding limit value.
Internal Temperature and Reference Temperature: commercial A/C units
include several sensors for measuring the temperature at different internal
points. KLIC-DI monitors the value of one of these internal measures, called
Internal Temperature, which, together with the Reference Temperature, is
used for switching between the Auto-Cool and Auto-Heat modes of the A/C
machine. The Reference Temperature is the actual ambient temperature of
the room under climate control. It is necessary that KLIC-DI provides the
machine with this value, which implies that it should be sent first to KLIC-DI
through the corresponding communication object (generally from an external
sensor).
The A/C unit can control the Auto-Heat and Auto-Cool modes by three
different ways:
1. The machine receives the Reference Temperature and, basing on a
hysteresis value pre-configured by the installer of the machine, it
determines the corresponding auto mode.
2. The machine receives the Internal Temperature and, basing on a
hysteresis value pre-configured by the installer of the machine, it
determines the corresponding auto mode.
3. The machine establishes the auto mode according to the average value
between the Reference Temperature and the Internal Temperature.
The concrete temperature value that triggers the commutation between the
Auto-Cool and Auto-Heat modes depends on the configuration established in
the A/C unit itself. In all of the above cases, this value is compared to the
temperature setpoint so that if the temperature setpoint is higher, the Auto-
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