CU-E21NKR - Air-conditioner PANASONIC - Free user manual and instructions

Brand	Panasonic
Model	CU-E21NKR
Product Type	Split wall-mounted inverter air conditioner
Cooling Capacity	6.0 kW (20,500 BTU/h)
Heating Capacity	7.0 kW (23,900 BTU/h)
Power Supply	230 V ~ 50 Hz, single phase
Refrigerant	R32
Dimensions (outdoor unit)	780 x 540 x 290 mm
Weight (outdoor unit)	43 kg
Energy Class (cooling)	A++
Energy Class (heating)	A+
Main Functions	Inverter, auto mode, sleep, timer, dehumidification, ventilation, silent mode
Filter	Washable filter (clean every 2 weeks)
Noise Level (outdoor unit)	~ 48 dB(A)
Max Pipe Length	15 m
Max Elevation Difference	10 m
Safety	Anti-freeze protection, automatic restart, child lock
Spare Parts	Remote control, filters, electronic board, fan, compressor
Warranty	2 years (parts and labor)

Frequently Asked Questions - CU-E21NKR PANASONIC

How to install the Panasonic CU-E21NKR air conditioner?

Installation must be carried out by a certified technician. Ensure you respect the minimum distances between indoor and outdoor units, and securely fix the outdoor unit on a flat surface.

How to clean the filters?

Open the front panel of the indoor unit, remove the filters and wash them with warm soapy water. Rinse and dry completely before reinstalling. Clean every 2 weeks under intensive use.

What to do if the device displays an error code?

Refer to the error code section in the manual. Common codes include E1 (temperature sensor issue) or F1 (communication fault). Restart the device after unplugging the power for 5 minutes.

Can I control the air conditioner remotely?

Yes, with the IntesisHome module (sold separately), you can connect the unit to your Wi-Fi network and control it via the mobile app. Follow the installation guide provided with the module.

What type of refrigerant is used?

The Panasonic CU-E21NKR uses R32 refrigerant, which is more environmentally friendly than older refrigerants. It offers better energy efficiency.

How to set the timer?

Use the remote control to access timer modes. You can program the stop or start at a specific time. Press the 'TIMER' button and set the time with the +/- keys.

Why is the outdoor unit making noise?

A slight hum is normal (compressor and fan). If the noise is excessive, check that the unit is securely mounted and there are no obstructions. A clicking noise may indicate a part issue.

How to use silent mode?

Press the 'SILENT' or 'QUIET' button on the remote control. This mode reduces noise level by limiting fan speed. Ideal for night.

What is the minimum set temperature in cooling mode?

The minimum temperature in cooling mode is generally 16 °C, and maximum in heating mode is 30 °C. Refer to the manual for exact values.

How to activate child lock?

Press and hold the 'MODE' and 'TEMP DOWN' buttons simultaneously for 3 seconds. A lock symbol appears on the display. To deactivate, repeat the operation.

USER MANUAL CU-E21NKR PANASONIC

Your Home In The Cloud

Simple icon of a house partially covered by a cloud, no text or symbols present

PA-AC-WIFI-1A

INSTALLATION GUIDE

Installation process should only be performed by an authorized installer. Please follow all Safety Instructions provided by the Panasonic manuals.

1. Product description

The IntesisHome device is an external module capable of connecting Panasonic Air Conditioning units into your Wi-Fi network in order to provide global connectivity and remote control applications through a friendly user interface.

Packaging content:

- IntesisHome Device

- External Antenna

- Supplied cable

- Temperature sensor

- Quick start guide

- Installation guide

- Warranty Doc

2. Technical information

In order to obtain a complete and technical description of the device, please see the document at www.intesishome.com/docs/PA-AC-WIFI-1A-Technical-Info-eng.pdf

Figure ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ le lid enna Connector connector sor Connector h button o indicator

In order to obtain detailed description of the installation possibilities, please see the document at www.intesishome.com/docs/PA-AC-WIFI-1A_Install_Sketch.pdf

3. FAQ and support

For any question or problem related with the product or the installation procedure, please visit our support center at www.intesishome.com/support/faq.

Please refer to the website www.intesishome.com/downloads for latest updates.

4. Installation overview

Figure 2 1. IntesisHome device 2. External antenna 3. Wi-Fi Access Point or Router 4. CN-CNT 5. Temperature Sensor

5. Device connections

1. Unplug the Air conditioner (AC) unit from the power supply line

2. Access to the main Printed Circuit Board.*

3. Locate the socket connector marked as CN-CNT*

4. Select a location for the IntesisHome device. See section 6 for more information.

5. Connect the A-end (the long one) of the supplied cable to the Air Conditioner CN-CNT connector and the B-end (the short one) to the device AC connector.

6. Connect the external antenna into the antenna connector. Make sure you screw the antenna connector in a clockwise direction until it stops.

7. (If needed) Install the Temperature Sensor. See section 8 for more information.

8. Place the antenna outside the AC, preferably in a vertical position and pointing directly to the Wi-Fi Router or Access Point (AP). See section 7 for more information.

9. Close the Air Conditioner unit.

10. Plug the AC to the power supply line. If connection with the Air Conditioner has been successful, IntesisHome device LED will start blinking Green and then will change to steady Green.

* See Panasonic installation or service manual for detailed information.

6. Device location

IntesisHome device can be both installed inside or outside the AC units.

In order to obtain detailed description of the installation possibilities, please see the document at www.intesishome.com/docs/PA-AC-WIFI-1A_Install_Sketch.pdf

Figure 3

Technical line drawing of a device housing with labeled components (no text or symbols present)

Technical line drawing of a front panel with labeled components (no text or symbols present)

Inside the AC unit Outside the AC unit
1. External antenna
2. IntesisHome device

Device Installed inside the AC unit or hidden

It allows a neater installation as the user cannot see the device during normal operation. The following points need to be taken into account if the device is installed inside the AC.

- The indication LED and the button are not going to be accessible by the user.

o The LED is an indicator of the status of the device both during connection and normal behavior.
o The button is used to reconfigure the device if the Access Point (AP) configuration changes. If this happens the user will need to access the inside of the Air Conditioner.

- If there is not enough space for installation inside the AC unit the following actions can be performed:

o If it is due to water pipes, change the side of the AC where they are connected to get more space inside the AC unit.
o Otherwise the support surface can be removed (Figure 1)

Device Installed outside the AC unit

The following points need to be taken into account if the device is installed outside the AC.

• The device can be fixed both using screws of double side tape.
• The cable lid has several options in order to direct the cables to the desired direction.

7. Antenna location

Locating the external antenna in a proper location and position will improve communication between the IntesisHome device and your Wi-Fi Router or Access Point (AP).

Remember to correctly screw the antenna connector in a clockwise direction until it stops.

Important: Avoid placing the antenna next to metal surfaces.

Important: When possible, try to check Wi-Fi coverage in the installation location. Good Wi-Fi level is strongly recommended.

Fix the external antenna preferably as close as possible from the Wi-Fi signal source (Access Point or Router). Please, make sure that you place the antenna in a vertical position and pointing directly to your Wi-Fi Router or Access Point (AP).

Figure 4

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

Antenna in vertical position and pointing to the Wi-Fi Access Point or Router.

3D illustration of a device with wireless signals and a router inside a rectangular box, marked with a red 'X' symbol (no text or labels)

Antenna in horizontal position and melt pointing to the Wi-Fi Access Point or Router.

If you have coverage problems after installation, please visit the connectivity support section in our site at www.intesishome.com/support/faq

8. Temperature Sensor location

The supplied temperature sensor only needs to be installed in MKE and NKE units. Newer models do not require an external temperature sensor.

Connect the temperature sensor to the device Temperature Sensor connector (Figure 1) and fix the other end next to the Air Conditioner intake air sensor.

See www.intesishome.com/docs/PA-AC-WIFI-1A_Install_Sketch.pdf for more information

Technical diagram of a device with numbered components, likely an electronic or mechanical assembly.

Technical line drawing of a front panel with labeled components (no text or symbols present)

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

3D illustration of a device inside a box with wireless signals and a red 'X' symbol (no text or labels)

Technical line drawing of a device chassis with labeled parts (no text or symbols present)

Technical line drawing of a wall-mounted air conditioner unit with labeled components (no text or symbols present)

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

3D illustration of a device with wireless signals and a router inside a rectangular box, marked with a red 'X' symbol (no text or labels)

Technical line drawing of a mechanical device with labeled parts (no text or symbols present)

Figura 3

Technical line drawing of a front panel with labeled components (no text or symbols present)

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

3D illustration of a device box with wireless signals, a router, and a red 'X' symbol (no text or labels)

Technical diagram of a device with numbered components, likely an electronic or mechanical assembly.

Technical line drawing of a front panel with labeled components (no text or symbols present)

Figura 3

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

3D illustration of a device inside a rectangular box with wireless signals and a red 'X' symbol (no text or labels)

Technical line drawing of a mechanical device with labeled parts (no text or symbols present)

Technical line drawing of a front panel with labeled components (no text or symbols present)

1. Ekstern antenne
2. IntesisHome-enhet

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

Antennen i vertikall posisjon og påker met WM-FI-61-gangspunktat eller rutaren

3D illustration of a device inside a box with wireless signals and a router, marked with a red circle containing an 'X' symbol (no text or labels on the diagram itself)

Antennen I horttismtall posikijenoggpelektliskenetot WI-FI-tligangspunktet eller ruteren

Technical diagram of a device with numbered components, likely an electrical or mechanical assembly.

Technical line drawing of a front-mounted air conditioner unit with labeled components (no text or symbols present)

Inuti luftkonditioneringsenheten Utanför luftkonditioneringsenheten

1. Extern Antenn
2. IntesisHome-enhet

3D illustration of a device inside a box with wireless signals and a router, featuring a green checkmark icon (no text or symbols)

3D diagram of a device with wireless signals, a router, and a red circle containing an 'X' symbol (no text or labels)

Antemnem il horiksonbalt lige, som ihle geltar mett WI-FI-ätkomstpunktdam eller -routern

Technical line drawing of a device chassis with labeled parts (no text or symbols present)

Technical line drawing of a front view of an air conditioner unit with labeled components (no text or symbols present)

1. Udvendig antenne
2. IntesisHome apparat

Apparat monteret inde i AC-enheden eller skjult

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

Antennen i lodret position og vender mod Wi-Fi Access Point eller router

3D illustration of a device with wireless signals and a router inside a gray box, marked with a red 'X' symbol (no text or labels)

Technical diagram of a device with labeled parts, showing internal components and assembly structure

Technical line drawing of a front panel with labeled components (no text or symbols present)

3D illustration of a device with wireless signal waves, a router, and a green checkmark (no text or symbols)

3D illustration of a device with wireless signals and a router inside a rectangular box, marked with a red 'X' symbol (no text or labels)

Technical diagram of a device with labeled parts, showing internal components and assembly structure

Technical line drawing of a front panel with labeled components (no text or symbols present)

3D illustration of a device tray with wireless signals, a router, and a green checkmark (no text or symbols)

Technical diagram of a device with numbered components, likely an electronic device or enclosure assembly.

Technical line drawing of a front panel with labeled components (no text or symbols present)

3D illustration of a device inside a rectangular box with wireless signals and a router, featuring a green checkmark icon (no text or symbols)

Illustration of a device with wireless signals and a router inside a rectangular box, marked with a red 'X' symbol (no text or labels)

www.intesishome.com/docs/PA-AC-WIFI-1A_Install_Sketch.

Intesis Software, S.L. - Milà i Fontanals 1bis - 08700 IGUALADA (Barcelona) - SPAIN

[e-mail] - www.intesishome.com