User manual for the Centek YKR-H/502E remote control

Centek YKR-H/502E Split System Remote Control (Shuft YKR-H/101E). Operating Instructions

Purpose

The air conditioner with outdoor and indoor units (split system) is designed to maintain optimal air temperature while ensuring sanitary and hygienic standards in residential, public, and administrative premises. The system provides cooling, dehumidification, heating, and air purification from dust.

The YKR-H/502E remote control is compatible with the following split system models:

Centek CT-65D07+
Centek CT-65D09
Centek CT-65D12
Centek CT-65D18
Centek CT-65D24

Precautions

➠ The air conditioner is controlled using a wireless infrared remote control.

➠ When operating, the distance between the remote control and the signal receiver on the indoor unit must not exceed 8 m. There should be no objects obstructing the signal path between the remote control and the unit.

➠ The remote control must be kept at least 1 m away from television and radio equipment.

➠ Before using the remote control for the first time, insert the batteries, ensuring that the “+” and “-” polarities are correctly observed.

➠ Make sure that the remote control is pointed at the signal receiver without obstacles in the way, and that the distance to the device does not exceed 8 meters.

➠ Avoid dropping or striking the remote control. Prevent liquids from entering the remote control. Do not expose the remote control to direct sunlight or excessive heat.

➠ If the remote control does not function properly, remove the batteries for 30 seconds and then reinsert them. If this does not help, replace the batteries.

➠ When replacing batteries, do not mix new and old batteries or batteries of different types, as this may cause malfunction of the remote control.

➠ If the remote control will not be used for a long period, remove the batteries and clean any leakage residue to prevent damage to the remote control.

Note

This remote control is universal and includes all functional buttons. Please note that some of them may be inactive depending on the specifications of your air conditioner. If certain functions are not available on your air conditioner, the corresponding buttons on the remote control will simply not work.

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Air Conditioner Operation

Indoor Unit Display Panel

1. Current temperature indicator

Remote Control Description

❗👉➨ Note
The remote control displays all symbols automatically during startup and only in accordance with the current operation for the remaining time.

1. ON/OFF button
2. Mode button
3. Speed button
4. Turbo button
5. Swing ⇄ button (Not available)
6. Sleep button
7. Anti-FUNGUS button
8. Display button
9. Heater button
10. SET ▲ ▼ buttons
11. Swing ⇅ button (Horizontal louvers)
12. Timer button
13. Health button
14. iFEEL button
15. iClean button
16. LCD display

❗👉➨ NOTE
The picture shown corresponds to the standard remote control, displaying almost all functional buttons. They may slightly differ from those on your remote control depending on the model.

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Operating Instructions

1 ON/OFF (POWER)

Press the ON/OFF button. When the unit receives the signal, the previous operating mode will be displayed on the indoor unit display. In the case of the first power-on, the operating mode will be factory preset. Pressing the button a second time will turn the unit off.

2 MODE (Operating Mode)

Pressing this button cycles through the following operating modes: AUTO (Automatic), Cool, Dry, Heat, Fan. The corresponding mode icons will appear on the remote control display:

When turned on for the second time, the unit defaults to AUTO mode. In this mode, the temperature will not be displayed; in Heat mode, the temperature will initially be set to 24°C, and in all other modes the temperature range will be 24–27°C.

❗👉➨ NOTE
About the AUTO MODE
When AUTO mode is selected, the set temperature will not be shown on the LCD display. Depending on the room temperature, the air conditioner will automatically start cooling or heating to provide comfortable conditions for the user.

3 SPEED (Fan Speed Selection)

Pressing the SPEED button changes the fan speed in the following sequence:

AUTO – High – Medium – Low.

The display will show the corresponding fan speed indication:

AUTO – LOW – MID – HIGH.

In Auto mode, fan speed is automatically set according to the difference between the set temperature and the ambient temperature.

In CLEAN mode (evaporator purging function), the fan automatically operates at low speed.

4 TURBO (Intensive Mode)

In COOL and HEAT modes, pressing the TURBO button will enable or disable the Intensive Mode function. When changing modes or adjusting the fan speed, the Intensive Mode function will be automatically turned off.

❗👉➨ NOTE
About the TURBO function
When activated, the fan will operate at maximum speed to heat or cool the room as quickly as possible to reach the preset temperature.

5,11 SWING ⇄ and SWING ⇅ (Vertical and Horizontal Louvers Position)

Pressing the SWING and SWING2 buttons allows you to adjust the position of the vertical and horizontal louvers of the indoor unit to the desired angle.

When the SWING or SWING2 button is pressed, the louvers will start oscillating; pressing the button again will fix the louvers in the selected position.

❗👉➨ NOTE
Vertical louvers can be adjusted manually.

6 SLEEP (Night Mode)

Used to set or cancel Night Mode. After turning the unit on, the Night Mode function must be activated. After turning the unit off or pressing the SLEEP button again, the Night Mode function will be canceled. When activated, the word SLEEP will appear on the remote control display. The TIMER function can be used in this mode. In Auto and Speed modes, this function is unavailable.

7 Anti-FUNGUS

This air conditioner has a special drying and anti-mold function, which can be enabled or disabled using the “yes” or “no” buttons. This function is controlled by the remote control in cooling, drying, and automatic (cooling and drying) modes.

The horizontal louvers are set to the default position for cooling. If the air conditioner is operating in heating mode (during cooling the unit only operates in fan mode), before shutting down, the indoor fan will run for three minutes at low airflow. This function is intended to prevent mold formation on the evaporator caused by water accumulation and the spread of unpleasant odors.

❗👉➨ NOTE
This function is not factory preset. Setup method: with the air conditioner and the remote control turned off, point the remote control at the unit and press and hold the Anti-FUNGUS button continuously once. The unit will emit five beeps, followed by an additional five beeps, indicating that the function is enabled. Once enabled, unless the air conditioner is disconnected from the power supply or the function is manually disabled, it will operate by default.

To disable this function:

Disconnect the air conditioner from the power supply;

With the air conditioner and the remote control turned off, point the remote control at the unit and press and hold the Anti-FUNGUS button continuously once. The unit will emit five beeps, followed by three beeps, indicating that the function is disabled.

When this function is active, it is recommended not to restart the air conditioner until the process has fully stopped.

This function does not operate if the timer is stopped or if the unit is in standby mode.

8 DISPLAY (Indoor Unit Display Backlight)

Pressing the DISPLAY button turns the indoor unit display backlight on or off. After the unit is disconnected from the mains, the DISPLAY function must be re-enabled.

9 EHeater Button

Not available for this model.

10 SET ▲ ▼ Buttons

These buttons are used to change the set temperature value or adjust the set ON/OFF time for the split system timer.

12 TIMER Button

Setting the TIMER ON time

With the remote control turned off, press the TIMER button. The display will show TIMER ON and the timer time. The setting range is from 0.5 hours to 24 hours.

To set the desired timer time, press the ▼ or ▲ buttons. Each press increases or decreases the time by 0.5 hours. After 10 hours, each press increases or decreases the time by 1 hour.

To enable the timer function, press the TIMER button again.

You can set other functions to achieve the desired conditions after the air conditioner turns on (including operating mode, temperature, swing, fan speed, etc.). The display will show all saved settings. When the timer reaches the set time, the air conditioner will automatically operate according to the stored settings.

Setting the TIMER OFF time

With the remote control turned on, press the TIMER button. The display will show TIMER OFF and the timer time. The setting range is from 0.5 hours to 24 hours.

To set the desired timer time, press the ▼ or ▲ buttons. Each press increases or decreases the time by 0.5 hours. After 10 hours, each press increases or decreases the time by 1 hour.

To disable the timer function, press the TIMER button again.

❗👉➨ NOTE: In timer mode, the remote control automatically sends a control signal to the indoor unit of the split system at the set time. Therefore, the remote control should be placed where the signal can reach the receiver without obstruction.

13 HEALTH Button

When the Health mode is enabled, the split system automatically operates in cooling or heating mode depending on the ambient temperature, creating comfortable indoor conditions for the user.

14 iFEEL Button

In this mode, the set air temperature is maintained not at the indoor unit location, but near the remote control (close to the user).

15 iCLEAN Button

With the remote control turned off, press the iCLEAN button. This function cleans the evaporator from dust, removes moisture inside the evaporator, and prevents the formation of a musty odor. The cleaning cycle lasts 35 minutes.

To stop the Self-Clean function manually, press the iCLEAN button again or the ON/OFF button.

Remote Control Display Panel

1. Operating modes:
   AUTO – automatic mode selection;
   COOL;
   DRY;
   HEAT;
   FAN;
2. Signal transmission indicator
3. ON/OFF indicator
4. Louvers
5. Functions
6. Temperature
7. Timer
8. Fan speed

Air Conditioner Operation in Different Modes

➠ In cooling or heating mode, the air conditioner maintains the set temperature within ±1°C. If the set temperature in cooling mode is higher than the ambient temperature by more than 1°C, the air conditioner will operate in fan mode.

➠ If the set temperature in heating mode is lower than the ambient temperature by more than 1°C, the air conditioner will operate in fan mode. In AUTO mode, the temperature is not adjusted manually; the unit automatically maintains a comfortable temperature of 25±2°C. At 20°C, the air conditioner automatically starts heating. At 26°C, it switches to cooling.

➠ In DRY mode, the air conditioner maintains the set temperature within ±2°C. If the indoor temperature is higher than the set temperature by more than 2°C when turned on, the unit will operate in cooling mode.

➠ When the temperature drops below the set temperature by more than 2°C, the compressor and outdoor fan stop, and the indoor fan operates at low speed.

➠ In SLEEP** mode while cooling, after the first hour of operation, the set temperature is automatically increased by 1°C, and after the second hour by another 1°C. It then remains unchanged.

➠ In SLEEP** mode while heating, after the first hour of operation, the set temperature is automatically decreased by 2°C, and after the second hour by another 2°C. It then remains unchanged.

➠ The air conditioner is equipped with an air ionization function, which turns on automatically when the unit is operating.

* Not used in this series
** Seven hours after activating the SLEEP function, the air conditioner automatically turns off.

Main Control Functions

➠ Press ON/OFF to turn the unit on or off.

❗👉➨ NOTE
After turning the unit off, the indoor unit louvers will automatically close.

➠ Press MODE to select the desired operating mode, or select preset COOL or HEAT modes.

➠ Use the arrow buttons to set the desired temperature. In AUTO mode, the temperature is set automatically.

➠ Press SPEED to select the desired fan speed. In TURBO mode, fan speed is set automatically.

➠ Press SWING ⇄ and SWING ⇅ to set the desired vertical and horizontal louver position.

Additional Control Functions

➠ Press SLEEP to enable/disable Night Mode.

➠ Press TIMER to enable/disable the timer function.

➠ Press DISPLAY to enable/disable the indoor unit display backlight.

➠ Press TURBO to enable/disable Intensive Mode.

Defrost Function

When the outdoor temperature is very low and humidity is high, the outdoor unit radiator may freeze, reducing heating efficiency. In this case, the automatic defrost function activates. After the first hour of operation, defrost will start automatically. Heating will be paused for 5–15 minutes to complete the process.

➠ The indoor and outdoor fans stop.

➠ During defrosting, the outdoor unit may release some steam. This is due to the accelerated defrosting process and is not a malfunction or an indicator of completion.

➠ After defrosting is complete, heating operation will resume.

Operating Procedure

After connecting the air conditioner to the power supply, press ON/OFF to turn it on.

➠ Press MODE to select cooling (COOL) or heating (HEAT) mode.

➠ Use the ▲ or ▼ buttons to set the temperature between 16°C and 32°C.

➠ In AUTO mode, the temperature is set automatically and cannot be adjusted via the remote control.

➠ Press SPEED to set the desired fan speed: AUTO; HIGH; MID; LOW.

➠ Use SWING ⇄ and SWING ⇅ to set louver swing mode. To enable SLEEP, TIMER, TURBO, or DISPLAY functions, press the corresponding buttons.

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Battery Installation

1. Slide the cover on the back of the remote control while pressing the special latch.

2. Insert two AAA alkaline batteries, ensuring they are installed according to the indicated polarity.

3. Press the ON/OFF button.

❗👉➨ NOTE
➠ Replace the batteries if the LCD display does not light up or if the remote control cannot change the air conditioner settings.
➠ Use new AAA batteries.
➠ If the remote control is not used for more than one month, remove the batteries.