User manual for the universal remote control for Centek air conditioners YKR-T/121E (YKR-T/011E)

Centek YKR-T/121E (YKR-T/011E) Split-System Remote Control. Operating Instructions

Please carefully read this manual before operating the device, as it contains important information regarding proper and safe usage. Keep this manual for future reference.

The manufacturer shall not be held responsible in cases of improper use of the device, failure to follow the rules and conditions outlined in this manual, or attempts at unauthorized repair.

Split-type air conditioning systems (hereinafter referred to as split-systems) must be installed exclusively by qualified specialists.

❗👉➨ Do not attempt to perform installation yourself. Improper installation may result in incorrect operation or damage to the device!

Compatibility

The Centek YKR-T/121E (YKR-T/011E) remote control is compatible with the following models:

Centek CT-65U10
Centek CT-65U13
Centek CT-65U18
Centek CT-65U24
Centek CT-65E07+
Centek CT-65E09
Centek CT-65E12
Centek CT-65E18
Centek CT-65E24
Centek CT-65Z10
Centek CT-65Z13
Centek CT-65Z18
Centek CT-65Z24

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Precautions

➠ The remote control is not a toy. Do not allow children to play with it and avoid using it for purposes other than intended.

➠ When pressing buttons, aim the infrared transmitter at the indoor unit of the air conditioner. The indoor unit will confirm receipt of the signal from the remote control with a short audible beep.

➠ Signals can be received at a distance of up to 8 meters in a straight line from the indoor unit, within a 45° angle to the left and right. Ensure there are no obstacles between the remote control and the unit.

➠ Keep the remote control at least 1 meter away from television and radio equipment.

➠ Do not drop the remote control or expose it to strong impacts. Avoid direct sunlight, heat sources, water exposure, and high-humidity environments.

➠ Do not use sharp objects to press the buttons, as this may damage the remote control. Do not clean it with gasoline, solvents, chemically treated wipes, or similar agents.

➠ If the remote control does not function properly, remove the batteries, wait 30 seconds, and then reinsert them. If the issue persists, replace the batteries.

❗👉➨ Remove the batteries if the remote control will not be used for an extended period.

Centek YKR-T/121E Remote Control Display Panel

1. This indicator appears when the remote control sends a command to the indoor unit.
2. Operating mode indicator.
3. ON/OFF status indicator “RUN” — shows whether the air conditioner is on or off.
4. Digital temperature display — shows the set temperature in all modes except “FAN.” Range: 16 to 32 °C. When displaying room temperature, the “ROOM” indicator is also shown.
5. Digital timer “ON/OFF” display — shows values from 0.5 to 24 in timer mode.
6. Indoor fan speed indicator.
7. Indicator for the “TURBO” mode.
8. Child lock activation indicator.
9. Automatic vertical louver movement indicator (internal).
10. Automatic horizontal louver movement indicator (external).
11. Ionization function indicator “HEALTH”*.
12. “ECO” energy-saving mode indicator*.
13. “SLEEP” mode indicator. Note: “SLEEP” is not available in “FAN” or “AUTO” modes.
14. Quiet fan mode “SILENCE” indicator*.
15. Intensive heating mode indicator “ELE.H”*.
16. Display backlight indicator.
17. “iCLEAN” self-cleaning function indicator.

* Not used in this series.

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Remote Control Button Layout and Functions

The illustration shows a standard remote control with all functional buttons. The button layout and available functions may slightly differ depending on your specific remote control model.

❗👉➨ Attention: Depending on your air conditioner model, certain buttons may not have assigned functions.

1. ON/OFF Button Power Button

➠ Press this button to turn the unit on or off.
➠ Press to reset existing timer and sleep mode settings.

2. MODE Button

Each press changes the operating mode in the following sequence:

... → AUTO (Automatic) → Cool → Dry → Heat → Fan →...

“AUTO” Operating Mode

In automatic mode, the air conditioner selects cooling or heating based on the room temperature, maintaining comfortable conditions for the user. The target temperature is not displayed on the remote control screen and cannot be adjusted.

➠ Press “MODE” and select “AUTO.”
➠ Press to set the fan speed to “Low — Medium — High — TURBO — Automatic.”

❗👉➨ Note: In “AUTO” mode, the temperature cannot be adjusted.
When the unit is first powered on, it defaults to “AUTO” mode.

“COOL” Operating Mode

➠ Press “MODE” and select “COOL.”
➠ Use the [+] or [—] buttons to set the desired temperature between +16 and +32 °C. The display changes as the buttons are pressed.
➠ Press to set the fan speed to “Low — Medium — High — TURBO — Automatic.”

“HEAT” (HEAT) Operating Mode

➠ Press “MODE” and select “HEAT.”
➠ Use the [+] or [—] buttons to set the desired temperature between +16 and +32 °C. The display changes as the buttons are pressed.
➠ Press to set the fan speed to “Low — Medium — High — TURBO — Automatic.”

❗👉➨ In cooling-only air conditioners, the heating mode is not available.

“DRY” (DRY) Operating Mode

➠ Press the “MODE” button and select the “DRY” (dehumidification) mode.
➠ Use the [+] or [—] buttons to set the desired temperature within the range of +16 to +32 °C. The numbers on the display change as the buttons are pressed.

❗👉➨ Note: In “DRY” mode, the fan speed cannot be adjusted.

“FAN” Ventilation Mode

In ventilation mode, the air conditioner operates only the indoor unit fan. In this mode, the unit does not regulate the room temperature. The target temperature is not shown on the remote control display and cannot be changed.

➠ Press the “MODE” button and select the “FAN” mode.
➠ Press the button to select the fan speed: “Low — Medium — High — TURBO — Automatic.”

❗👉➨ Note: In “FAN” mode, temperature adjustment is not available.

❗👉➨ Warning! The air conditioner does not supply fresh air from outside.

3. TIMER Button

➠ Press the “TIMER” button once; the “ON/OFF” indicator on the display will start flashing. Use the [+] or [—] buttons to set the desired time for the unit to turn on or off. The setting interval is 0.5 hours, with a range from 0.5 to 24 hours.

➠ Press the “TIMER” button again to confirm the setting; the “ON/OFF” indicator will stop flashing.

➠ If the “TIMER” button is not pressed within 10 seconds after “ON/OFF” starts flashing, the timer setting process will end.

➠ Pressing the “TIMER” button again will cancel the setting.

➠ The power-on timer can only be set when the unit is switched off.

4. HEAT Button

Press the button to activate the “HEAT” mode.

5. COOL Button

Press the button to activate the “COOL” mode.

6. (Fan Speed Control) Button

Press the button to select the fan speed: “Low — Medium — High — TURBO — Automatic.”

❗👉➨ Note: Automatic fan speed and fan speed adjustment are not available in “DRY” mode.

7. [+] and [—] Buttons

Use the [+] or [—] buttons to set the desired temperature between +16 and +32 °C. The numbers on the display change as the buttons are pressed.

8. [L/R SWING] and [U/D SWING] Buttons

➠ Press the [L/R SWING] button to activate vertical louver oscillation.

➠ Press the [U/D SWING] button to activate horizontal louver oscillation. Pressing it again will fix the position of the horizontal louvers.

❗👉➨ Note: Holding the [U/D SWING] button for 3 seconds switches the remote control from horizontal louver oscillation mode to position adjustment mode (5 positions + oscillation function). To cancel this function, hold the [U/D SWING] button for 3 seconds.

9. MENU and OK Buttons

Press the “MENU” button to enter the function selection mode (iFEEL/HEALTH/ECO/SLEEP/SILENCE/DISPLAY/LIGHT/ANTI-F/iCLEAN). Then press ▲▼ ◀▶ to select the desired function. After selecting the function, press “OK” to confirm.

To deactivate a function, select it again and press “OK.”

❗👉➨ Note: Some functions (such as ANTI-F and iCLEAN) can only be activated when the unit is turned off.

Remote Control Functions

“ANTI-F” Function

This function prevents mold and mildew from forming on the indoor unit’s heat exchanger. After the air conditioner is switched off via the remote control, the indoor unit will automatically continue operating in fan mode for 3 minutes to dry the heat exchanger.

❗👉➨ Note: The “ANTI-F” function is activated only after the air conditioner has been operating in cooling or dehumidification mode. Do not restart the unit until the “ANTI-F” cycle has been completed.

“iCLEAN” Function

This function runs the indoor unit’s self-cleaning program using freezing/condensation. It helps maintain the cleanliness of the heat exchanger by removing accumulated dust and dirt. The program consists of three stages:

➠ Cooling mode operation for up to 15 minutes (condensate accumulation and/or frost/ice formation);
➠ Heating mode operation for up to 10 minutes (melting accumulated frost/ice, drying residual condensate, and sterilizing the heat exchanger);
➠ Fan mode operation for up to 10 minutes (final drying of the heat exchanger and equalizing the indoor unit temperature).

❗👉➨ Note: During this function, the indoor unit display will show the code “CL.”

“HEALTH” Function

This function enables or disables the built-in air ionizer.

“ECO” Function

This function enables or disables the air conditioner’s energy-saving mode.

“SLEEP” Function

This function activates the comfortable sleep mode. In this mode, the indoor unit display is turned off, and the temperature setting is automatically adjusted according to a preset pattern.

➠ In cooling mode — increases the temperature setting by 1 °C one hour after activation and by another 1 °C two hours after activation. The temperature setting then remains constant. The unit exits sleep mode automatically after 10 hours and returns to normal operation.

➠ In heating mode — decreases the temperature setting by 1 °C one hour after activation and by another 1 °C two hours after activation. The temperature setting then remains constant. The unit exits sleep mode automatically after 10 hours and returns to normal operation.

❗👉➨ Note: In “SLEEP” mode, the fan speed is not automatically adjusted — set the desired speed manually if necessary.

“SILENCE” Function

This function activates the air conditioner’s quiet mode. In this mode, the indoor fan and compressor operate at the lowest speed. Pressing the button disables the “SILENCE” function.

“DISPLAY” Function

This function enables or disables the display of the indoor unit.

“❗👉➨ Note:
➠ This function requires periodic transmission of temperature data from the remote control to the indoor unit. Ensure direct visibility between the remote and the indoor unit, with a maximum distance of 8 m.
➠ Do not block the air exchange opening on the back of the remote control while using this function, as it may reduce temperature measurement accuracy.
➠ The current room temperature is displayed on the remote control when this function is active.

“ELE.H” Function

This function enables or disables the additional electric heater, if installed in the air conditioner.

❗👉➨ Note: The “ELE.H” function is automatically activated when switching the air conditioner to heating mode.

Child Lock Function

Press and hold the and “MODE” buttons simultaneously for 3 seconds to activate/deactivate the remote control button lock. When activated, the corresponding icon will appear on the remote control display.

Operating Procedure

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

2. Use the MODE button to select the cooling (COOL) or heating (HEAT) mode.

3. Press the TEMP button.

4. Use the [+] or [—] buttons to set the desired temperature within the range of 16 to 30 °C.
In AUTO mode, the temperature value is set automatically and cannot be adjusted via the remote control.

5. Use the FAN button to select the desired fan speed:

AUTO FAN (automatic), LOW — low speed, MID — medium speed, HIGH — high speed.

6. Use buttons (11) SWING 1 and (12) SWING 2 to set the louver swing mode. To activate the SLEEP, TIMER, TURBO, or LIGHT functions, press the corresponding buttons.

Adjusting the Direction of Conditioned Airflow

1. Horizontal airflow direction (left-right) is adjusted using the remote control. Vertical airflow direction (up-down) is also adjusted using the remote control.

2. When starting the air conditioner, the horizontal louvers should not be set too far upward or downward, as this may reduce cooling or heating efficiency.

3. To avoid control system malfunctions, do not manually adjust the horizontal or vertical louvers. If normal operation of the horizontal louvers is disrupted, switch off the air conditioner, unplug it, wait a few minutes, then plug it back in and turn it on again.

4. To prevent condensation on the surface of the vertical louvers and water from dripping onto the floor during prolonged operation in cooling or dehumidification modes, do not direct the airflow downward.

5. When the air conditioner is turned on again, the horizontal louvers may remain stationary for about 10 seconds.

6. During the first startup of the air conditioner, some noise may be heard when the horizontal louvers turn. This is normal and not a cause for concern.

7. Carefully read this manual and strictly follow the provided instructions. This will help you avoid serious damage to the air conditioner, injury, or property damage.

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Replacing Remote Control Batteries

1. Slide off the cover on the back of the remote control.

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

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

Emergency Switch

➠ In case the wireless remote control is lost or damaged, the air conditioner can be turned on/off using the emergency switch.

Operating the Air Conditioner Without the Remote Control

If you have lost the remote control or it is malfunctioning, follow these steps:

➠ To turn on the air conditioner, briefly press the emergency control button. The unit will start in automatic mode.

➠ Carefully close and secure the front panel of the indoor unit.

➠ To turn off the air conditioner, briefly press the emergency control button again.

❗👉➨ NOTE
Do not hold the buttons down for an extended period, as this may cause a malfunction.

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Built-in Air Conditioner Functions

Warm Start Function (Protection Against Cold Air Blowing)

This series of air conditioners features a warm start function that prevents the indoor unit fan from starting at medium or high speed until the heat exchanger is warmed up. If medium or high fan speed is selected, the fan will operate at low speed until the heat exchanger reaches the proper temperature.

Temperature Compensation Function (Protection Against Chilling)

This series includes a temperature compensation function, which accounts for temperature stratification in the room and accurately maintains the temperature at the user’s location.

Auto-Restart Function

This series features an auto-restart function that activates after an unexpected power outage. When power is restored, the air conditioner resumes operation with the previous settings for mode, temperature, and fan speed.

Louver Position Memory Function

These air conditioners have a louver position memory function. After the unit is turned off and on again, the louvers return to the last position set by the user.

“Smart Defrost” Function

This series includes a smart defrost function and does not require an additional temperature sensor on the outdoor unit (except for models 36 and 84). If frost forms on the outdoor unit heat exchanger during heating mode, the defrost mode is automatically activated for approximately 5–10 minutes.

Self-Diagnosis Function

The air conditioner’s microcontroller continuously monitors for abnormal operating conditions or component malfunctions and automatically stops the system to prevent damage. At this time, an error or fault code is displayed on the indoor unit’s display.

High-Density Dust Filter

This series is equipped with a high-density air dust filter with increased cleaning capacity. The cell size of the filter is 0.54 ? 0.54 mm, or 225 holes per cm?.

Anti-Corrosion Coating

These air conditioners feature a special Blue Fin coating, which increases heat exchange efficiency and extends the unit’s service life.

Low-Temperature Kit (Optional)

An optional low-temperature kit enables the air conditioner to operate in cooling mode at outdoor temperatures as low as –30 or –40 °C (depending on the kit version). At outdoor temperatures from +5 °C to +15 °C (for example, in the evening, at night, or during the off-season), the unit maintains 100% cooling capacity.