Installation guide
Bluetooth Adapter
Type EKA 202 & EKA 203
Bluetooth Adapter (EKA 202 & EKA 203) is a plug in type device for ERC and EETa range of controllers to
provide bluetooth connectivity with companion mobile application 'KoolConnect' .
• Bluetooth Low Energy 5.2
• Simple Plug anvd Play module
• Powered from controller
• Data logging for 15 days
• Real time clock with power back up option
Technical specifications:
Specifications
Input voltage
Max Current
Bluetooth version
Bluetooth range (without any obstruction around)
Data storage duration
RTC power back up
Communication interface with controller
Operating temperature
Maximum humidity
Storage temperature
Bluetooth adapter
Ordering code
Interface cable
Supported Controllers
Approvals
1)
1)
For latest approval status and other local approvals, please check at danfoss.com or contact your local Danfoss representative.
Dimensions (units are in mm)
Fig. 2: Top view
59.6
B
Procedure for adapter installation
1. Detach the QR code chip from the Bluetooth Adapter by
breaking. The QR code chip is used for pairing with mobile
application.
© Danfoss | Climate Solutions | 2023.01
080R4219
AN40413688421601-000202
ENGLISH
Fig. 1: EKA 202/203
EKA 202
EKA 203
5 V DC / 12 V DC
5 V DC / 12 V DC
70 mA
76 mA
5.2
5.2
10 m
10 m
15 days
15 days
No power backup
36 hours (approx.)
UART, One wire
UART, One wire
-25 – +55 °C
-25 – +55 °C
<90% RH (Non-condensing)
<90% RH (Non-condensing)
-40 – +70 °C
-40 – +70 °C
080N0022 (Single Pack)
080N0023 (Single Pack)
080N0026 (I Pack)
080N0027 (I Pack)
080N0329 (ERC 11x) | 080N0327 (ERC21x) | 080N0325 (EETa)
ERC11x, ERC21x (080G34xx series only) and EETa
CE, UL, FCC, ISED
Fig. 3: Rear view
17.7
A
A. Bluetooth Adapter
B. QR code chip
C. TTL port for connection
C
with controller
2. Attach the QR code chip to the door or any clean part of the
cabinet that can be easily accessed for the pairing procedure.
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3. Secure the Bluetooth Adapter in a convenient location using
double sided tape (Fig. 4-5) or by screw mounting (Fig. 6)
Fig. 5
Fig. 6
Fig. 4
4. Power off the controller by switching off the main supply to
the controller.
Warnings/note:
• The installation of Bluetooth Adapter should be performed while
the Cooler is switched off.
• Ensure the Bluetooth Adapter is installed away from heating
source, direct sunlight, dripping water, dusty environment.
• Do not mount the adapter directly in food compartment in case
of cold space installation.
Power up sequence and connection with mobile application:
Function
Description
Power up the controller connected with
Bluetooth Adapter.
Power-up
Bluetooth Adapter starts power up
initialization (it gets power from connected
controller).
After power up initialization, the adapter
establishes communication with connected
Established
controller and start broadcasting.
communication
with controller and
broadcasting.
Unsuccessful identification/communication
with controller.
Search and connect broadcasting adapter
Connection with
using KoolConnect companion app. Click
mobile app and Real
on "Set time" when mobile app shows alert
time clock (RTC)
message to synchronize the adapter time
update
with mobile time.
1)
1)
Note:
1. Ensure that the module is connected to the mobile app after final power up and installation to finalize the setup properly. If the
module is not connected after final power up at customer's site, the module will log the data without the correct time stamp.
2. If the Bluetooth Adapter is changed from one controller model to another (ex: ERC112C to ERC112D or EETa 3W), all the logged
data from previous controller are erased and start logging afresh from new controller. The data from previous controller is
retained if one code no. is changed to another code no. within the same controller model.
EU CONFORMITY NOTICE
Hereby, Danfoss A/S declares that the radio equipment type (CRO) Bluetooth adapter is in compliance with Directive 2014/53/EU.
The full text of the EU declaration of conformity is available at the following internet address:
Scan QR Code below for KoolConnect mobile app download, regulatory and other informations:
Android version 8.0 or later
iOS 11 or later (Iphone 8 & above)
© Danfoss | Climate Solutions | 2023.01
5. Connect the Bluetooth Adapter to communication port of
controller using interface cable (Fig. 7)
– TTL port in ERC21x and EETa
– DI port in ERC11x
Fig. 7
Bluetooth Adapter
Interface
cable
Controller
• Avoid any obstruction around the adapter that impacts
Bluetooth communication.
• Interface cable ordered separately for the respective controller
to be used for connecting Bluetooth Adapter to Controller.
• Ensure that cables are always strain relieved and tied up by
other means to cabinet.
Illustration
LED info
Blue
Red
Green
• White – Blue – Red – Green
LED blinking in sequence
indicates power up
initialization.
• After few seconds, Green
Green
LED rapid flashes indicating
controller detection is in
progress.
Green
• Green LED slow flashes
(1s/1s)
Red
• Red LED rapid flashes.
Blue
• LED turns to constant Blue
indicating Bluetooth is
connected.
ID411846615416-0101
KoolConnect
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