User guide for the universal remote control for air conditioners R51M/(C)E, R51M/BG(C)E, RG51M2/(C)E,RG51A/(C)E, RG51M3/(C)E

DANTEX R51M E Split-System Remote Control. Operating Instructions

R51 Wireless remote control for fan coil units and Dantex air conditioners. Liquid crystal digital display, clock. Control functions: ON/OFF, temperature setting, mode switching, fan speed adjustment, etc.

➠ Please read this manual carefully before using the remote control.
➠ Keep this manual for future reference.

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Compatibility of the R51M/E Air Conditioner Remote Control

The Dantex R51 remote control is compatible with:

Semi-industrial series, inverter multi-split systems, wall-mounted type

Dantex RK-M07CC
Dantex RK-M09CC
Dantex RK-M12CC

Mobile type, “N” series

Dantex RK-09PNM-R
Dantex RK-12PNM-R

Multi-zone system MVS (Digital Scroll), high static pressure duct type

Dantex RK-MD71T1
Dantex RK-MD80T1
Dantex RK-MD90T1
Dantex RK-MD112T1
Dantex RK-MD140T1
Dantex RK-MD280T1-C

Multi-zone system MVS (Digital Scroll), wall-mounted type

Dantex RK-MD22G-Y
Dantex RK-MD28G-Y
Dantex RK-MD36G-Y
Dantex RK-MD45G-Y
Dantex RK-MD56G-Y
Dantex RK-MD71G-Y

Fan coils, 1-way cassette type

Dantex DF-300Q1-B
Dantex DF-400Q1-B
Dantex DF-600Q1-B

Fan coils, 4-way cassette type

Dantex DF-300QA
Dantex DF-400QA
Dantex DF-450QA
Dantex DF-500QA
Dantex DF-600QB
Dantex DF-750QB
Dantex DF-850QB
Dantex DF-950QB
Dantex DF-1200QB
Dantex DF-1500QB

Fan coils, wall-mounted type

Dantex DF-250G
Dantex DF-300G
Dantex DF-400G
Dantex DF-500G
Dantex DF-600G

High-capacity air conditioners, column type

Dantex DU-76FAHR
Dantex DU-96FAHR

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Technical Specifications of the Remote Control

Model: DANTEX R51 E; R51M/BG(C)E; RG51M2/(C)E; RG51A/(C)E; RG51M3/(C)E
Rated voltage: 3.0 V (dry alkaline battery LR03x2)
Minimum central processor output signal voltage: 2.0 V
Transmission distance: 8 m (at 3.0 V voltage, up to 11 m)
Operating conditions: -5°C ~ 60°C

Modification Features

* — This symbol indicates an optional button that is present only on specific models.

For model RG51M2/(C)E: buttons 14 and 15 are absent.
For model RG51M3/(C)E: buttons 7, 14, and 15 are absent.
For models R51M/(C)E and R51M/BG(C)E: button 15 is absent.

Function Description

1. Operating modes: AUTO, COOL, DRY, HEAT (only for models without cooling function) and FAN.
2. 24-hour timer function.
3. Indoor temperature adjustment range from 17°C to 30°C.
4. Multifunctional LCD display (liquid crystal).
5. Backlight (only for models R51M/BG(C)E).
6. Compatible with previous R11 models.

Warnings

Attention

1. Ensure there are no obstacles between the remote control and the receiver of the indoor unit; otherwise, the air conditioner will not operate.

2. Avoid any liquids entering the remote control.

3. Protect the remote control from high temperatures and radiation.

4. Prevent direct sunlight from reaching the receiver of the indoor unit, as it may cause incorrect operation of the air conditioner.

5. Keep the remote control away from household appliances that may generate electromagnetic interference.

The manufacturer reserves the right to change the device specifications without prior notice.

Designation of Buttons on the DANTEX R51 E Remote Control and Their Functions

This remote control is universal and can be used to operate various models of units. Some functions may be unavailable. When pressing a button for an unavailable function, the unit will continue to operate without changing parameters.

1. TEMP ▼

Temperature decrease button: Press this button to lower the indoor temperature.

2. TEMP ▲

Temperature increase button: Press this button to raise the indoor temperature.

3. MODE (Operating mode)

Mode selection button: Allows you to select the operating mode. Each time you press the button, the mode changes in the following sequence:

AUTO (Automatic), Cool (Cooling), Dry (Dehumidification), Heat (Heating), Fan (Ventilation)

❗👉➨ Note: Models with cooling-only function (COOL) do not support heating (HEAT).

4. SWING (Louver swing)

Swing button: Press this button to turn the automatic movement of air flow direction louvers on or off.

5. RESET (Reset)

Reset button: Pressing the hidden reset button restores all current settings to their factory defaults.

6. AIR DIRECTION

Airflow direction button: Press and immediately release this button to activate the horizontal louver swing function. Each press changes the louver angle by a set increment. Press and hold for more than two seconds to enable automatic swing mode. Press again to stop louver movement. If the louvers stop in a position that may interfere with cooling or heating, the swing angle will automatically adjust. (Not applicable to models without this function.)

7. LED DISPLAY

LED display button: Press this button to turn off the air conditioner's digital screen, and press it again to turn it back on. (Not applicable to models without this function.)

8. FAN SPEED

Fan speed button: Used to cycle between four airflow speed modes: automatic (AUTO), low (LOW), medium (MED), and high (HIGH). Each press changes the fan operating mode.

9. ON/OFF Button

Power button: Press this button to start operation; press again to switch the air conditioner off.

10. TIMER ON

Timer ON button: Press this button to set the automatic start cycle. Each press increases the set time by 30 minutes. After reaching 10:00 hours, the time increments by 60 minutes. To cancel automatic start, set the time to 0:00.

11. SLEEP

Sleep mode button: Press this button to switch to energy-saving mode. Press again to cancel. This function can only be used in cooling (COOL), heating (HEAT), and automatic (AUTO) modes, maintaining the most comfortable temperature for the user.

❗👉➨ Note: Pressing any other button will deactivate sleep mode.

12. TIMER OFF

Timer OFF button: Press this button to set the automatic shutdown cycle. Each press increases the set time by 30 minutes. After reaching 10:00 hours, the time increments by 60 minutes. To cancel automatic shutdown, set the time to 0:00.

13. LOCK

Lock button: Pressing the hidden lock button freezes all current settings, disabling all remote control buttons except the unlock button. Press again to disable the lock.

14. TURBO

Turbo mode button: When pressed in cooling (COOL) mode, the air conditioner switches to enhanced cooling mode. Press again to turn off turbo mode (only for models supporting this function).

15. CLEAN AIR

Air cleaning button (available on some models). Pressing this button activates an ionizer or plasma dust collector (depending on the model) to improve air quality.

Indicators on the Display Panel

1. Digital display: Shows the set temperature, and in timer mode – the ON/OFF timer settings. In fan mode (FAN), nothing is displayed.

2. Transmission indicator: Flashes once when a signal is sent from the remote control to the indoor unit receiver.

3. ON/OFF indicator: Appears when the unit is switched on via the remote control and disappears when switched off.

4. Operating mode indicator: Displays the icon of the current mode when the MODE button is pressed – “AUTO”, “COOL”, “DRY”, “HEAT” (for models with this function), or “FAN”.

5. Lock indicator: The LOCK symbol appears when the lock button is pressed. Press LOCK again to remove the indication.

6. Timer indicator: Displays the set timer parameters. When only start time is set, “TIMER ON” appears. When only stop time is set, “TIMER OFF” appears. If both are set, “TIMER ON-OFF” appears, indicating that both start and stop times are active.

7. Fan speed indicator: Press the FAN SPEED button to select the desired fan speed (Auto – Low – Med – High). Your selection is shown on the LCD, except in Auto mode.

❗👉➨ Note: All symbols are shown in the illustration for clarity. In real operation, only relevant symbols appear.

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Battery Installation and Replacement

The remote control uses two dry alkaline batteries (LR03x2).

1. To install batteries, slide the rear cover of the battery compartment and insert them according to the polarity (+ and -) marked inside the remote control.

2. To replace old batteries, follow step 1.

❗👉➨ Note:
1. Do not mix old and new batteries or different battery types, as this may cause malfunction.
2. If the remote control is not used for several weeks, remove the batteries to prevent leakage and damage.
3. Average battery life under normal use is approximately 6 months.
4. Remove batteries if there is no signal from the indoor unit or the transmission indicator does not light up.

Automatic Operation

After power-on, the operation indicator (OPERATION) on the indoor unit’s panel blinks and stops after six flashes.

1. Use the MODE button to select automatic (AUTO) mode.

2. Use the temperature button to set the desired room temperature. The most comfortable range is between 21°C and 28°C.

3. Press the ON/OFF button to start the air conditioner. The operation indicator on the indoor unit will light up. Fan speed is set automatically, and no text is displayed on the remote control screen.

4. To stop operation, press the ON/OFF button again.

❗👉➨ Note:
1. In AUTO mode, the air conditioner automatically selects cooling (COOL), fan (FAN), or heating (HEAT) mode based on the difference between the current room temperature and the set temperature.
2. If AUTO mode is not satisfactory, you can manually select the desired mode.

Cooling/Heating (for models with these functions) and Fan Modes

1. If AUTO mode is unsuitable, you can manually set the parameters using COOL, HEAT, or FAN modes.

2. Use the temperature button to select the desired room temperature. In cooling mode, the most comfortable temperature is 21°C or higher. In heating mode, it is 28°C or lower.

3. Press the FAN SPEED button to select the fan speed – AUTO, HIGH, MED, or LOW.

4. Press the ON/OFF button to start operation; the ON indicator will light up. Press again to turn the unit off.

❗👉➨ Note: Fan mode cannot control temperature. In this mode, only steps 1, 3, and 4 are available.

Dry Mode

1. Press the MODE button to select DRY mode.

2. Use the temperature button to select a temperature between 21°C and 28°C.

3. Press the ON/OFF button to start the air conditioner in DRY mode at low fan speed. Press again to turn the unit off.

❗👉➨ Note:
Due to the difference between the set and current room temperature, an air conditioner in DRY mode may start multiple times without activating the cooling or fan modes.

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Timer Operation

Press the timer ON button to set the automatic start time, and the timer OFF button to set the automatic stop time.

1. Setting the Start Time

1.1 Press the timer ON button. The remote control will display “TIMER ON” and the last set start time, while the digital display will show the symbol “h”. You can now adjust the start time.

1.2 Press the timer ON button again to set the desired start time.

1.3 After setting the start time, the remote control requires half a second to transmit the signal to the air conditioner. Approximately two seconds later, the “h” symbol will disappear and the set temperature will reappear on the digital display.

2. Setting the Stop Time

2.1 Press the timer OFF button. The remote control will display “TIMER OFF” and the last set stop time, while the digital display will show the symbol “h”. You can now adjust the stop time.

2.2 Press the timer OFF button again to set the desired stop time.

2.3 After setting the stop time, the remote control requires half a second to transmit the signal to the air conditioner. Approximately two seconds later, the “h” symbol will disappear and the set temperature will reappear on the digital display.

3. Setting Both Start and Stop Times

3.1 Press the timer ON button. The remote control will display “TIMER ON” and the last set start time, while the digital display will show the symbol “h”. You can now adjust the start time.

3.2 Press the timer ON button again to set the desired start time.

3.3 Press the timer OFF button. The remote control will display “TIMER OFF” and the last set stop time, while the digital display will show the symbol “h”. You can now adjust the stop time.

3.4 Press the timer OFF button again to set the desired stop time.

3.5 After setting the timer parameters, the remote control requires half a second to transmit the signal to the air conditioner. Approximately two seconds later, the “h” symbol will disappear and the set temperature will reappear on the digital display.

Changing Timer Settings

- To change the start/stop time (TIMER ON/OFF), simply press the corresponding timer button and set a new time.

- To cancel the start/stop timer settings (TIMER ON/OFF), set the timer value to 0:00.

❗👉➨ Note: The set time is a relative time counted from the current moment.