ROYAL CLIMA RC-RNX24HN User manual

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ROYAL CLIMA
2022
R410A
Renaissance
On/Off

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CONTENTS
Part I : Technical Information ................................................................................... 3
1. Summary......................................................................................................................3
1-1 Appearance...............................................................................................................................3
1-2 Model List..................................................................................................................................4
2. Outline Dimension Diagram........................................................................................5
3. Function and Control ..................................................................................................7
3-1 T-Style ........................................................................................................................................7
4. Refrigerant System Diagram.................................................................................... 14
4-1 Cooling Only ........................................................................................................................... 14
4-2 Cooling & Heating .................................................................................................................. 15
5. Electrical Part............................................................................................................17
5-1 Electrical Wiring Diagram ...................................................................................................... 17
Part II : Installation and Maintenance ................................................................... 19
6. Main Tools for Installation and Maintenance.......................................................... 19
7. Installation ................................................................................................................ 20
7-1 Notes for Installation ............................................................................................................. 20
7-2 Installation of Indoor Unit...................................................................................................... 21
7-3 Installation of outdoor Unit ................................................................................................... 24
7-4 Check after installation and test operation ......................................................................... 27
8. Maintenance.............................................................................................................. 29
8-1 Troubleshooting Guide .......................................................................................................... 29
8-2 Troubleshooting for Normal Malfunction.............................................................................. 40
9. Exploded Views and Parts List..................................................................................47
9-1 Indoor Unit ............................................................................................................................. 47
9-2 Outdoor Unit........................................................................................................................... 49
10. Removal Procedure..................................................................................................51
10-1 Indoor Unit ........................................................................................................................... 51
10-2 Outdoor Unit......................................................................................................................... 54
Appendix....................................................................................................................... 59
AUX Common Sensor R-T Analysis Table..................................................................................... 59

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Part I : Technical Information
1. Summary
1-1 Appearance
➢Indoor Unit
➢Outdoor Unit
Note: The outdoor grille can be replaced.

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1-2 Model List
NO.
MODEL
1
RC-RNX24HN
2
RC-RNX28HN
3
RC-RNX35HN
4
RC-RNX55HN

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2. Outline Dimension Diagram
The following data is for reference only and the actual size may vary.）
2-1 Indoor Unit（Unit: mm）
RC-RNX24HN, RC-RNX28HN, RC-RNX35HN
RC-RNX55HN

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2-2 Outdoor Unit（Unit: mm）
RC-RNX24HN, RC-RNX28HN
RC-RNX35HN
RC-RNX55HN

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3. Function and Control
3-1 T-Style
1) Remote Controller Introductions
➢Buttons description
● Carefully read this “instructions” for
safe and correct use of the air-conditioner.
● carefully keep the “instructions” manual
as it can be referred to at any time.

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1. ON/OFF Button
* Press this button to turn on/off the unit.
* This will clear the existing timer and SLEEP settings.
2. MODE Button
* Press this button, you can select the running mode as follows:
Note: HEAT mode is not available for cool only units.
3. TIMER Button
* With the unit ON, press this button to set OFF timer or with it OFF to set ON timer.
* Press this button once, the “ON(OFF)” will flash. Press “ + ” or “ - ”to set the
number of hours in which the unit will be turned ON/OFF, with an interval of 0.5
hour , and a range of 0.5-24 hours.
* Press it again to confirm the setting, the “ON (OFF)” will stop flashing.
4. HEAT Button
* Press this button to enter HEAT mode.
5. COOL Button
* Press this button to enter COOL mode.
6. SPEED Button
* Press this button, you can select the motor speed as follows:
Note: AUTO air speed is not available in fan mode.
This button is invalid in dry mode.
7. + & - Button
* Each time the “ + ” is pressed, the temperature setting will increase by 1℃(1℉)
and each time the “ - ” is pressed, it will decrease by 1℃(1℉) .
* The temperature setting ranges from 16℃ (60℉)～32℃(90℉).

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Note: The temperature cannot be set in AUTO or Fan mode.
8. MENU & OK Button
* Press MENU button to enter the function selection mode. Then press , ,
and to choose the function which you want. After, press OK button, turn on this
function.
* In function selection mode, press , , and , the character in LCD will be
flashing if the function can be selected.
9. L/R SWING Button
* Press this button to activate left/right swing and press it again to fix the swing
position.
10. U/D SWING Button
* Press this button to activate up/down swing and press it again to fix the swing
position.
Note:
* When the unit is on, press the “U/D SWING” button and hold for 3 seconds, the
button will shift to be the functional button of “Rated swinging”, and then press the
“U/D SWING” button to select the positions of Rated swinging.
* Only by pressing the “U/D SWING” button again and hold for 3 seconds or reinstall
the battery of the remote control, can the “U/D SWING” button resume its original
function. The power on/off button of the remote control cannot enable the exit of the
“Rated swinging” function.
11. HEALTH
* When the unit is on, press MENU button ,then press , , and to choose
“HEALTH” character, when the “HEALTH” character will blink, and press the “OK”
button to highlight (not highlight) the “HEALTH” character, which will activate
(deactivate) the health function.
12. ECO
* In COOL mode, the variable frequency air-conditioner will enter the ECO mode,
which consumes the least electricity, and exit it automatically 8 hours after.
* The ECO mode is not available on the fixed frequency air-conditioner.
* Changing modes or turning off the remote controller will automatically cancel the
ECO function.
* In the cooling mode, press the “MENU” button, press , , and to choose
the “ECO” character, when the “ECO” character will blink, and press the “OK”
button to highlight (not highlight) the “ECO” character , which will activate
(deactivate) the ECO function.
Note: The electricity consumption is affected by the ambient temperature and the
house structure etc., and when the ambient temperature is high or the house has a

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large area, be cautious to use the ECO mode.
13. SLEEP
* When the unit is on, press MENU button ,then press , , and to choose
the “SLEEP” character, when the “SLEEP” character will blink, and press the “OK”
button to highlight (not highlight ) the “SLEEP” character , which will activate
(deactivate) the function of sleep mode.
* The unit will exit SLEEP mode after 10 hours of continuous operation and restore to
the previous status.
Note: The SLEEP function cannot be activated in FAN and AUTO mode.
In the sleep mode, the screen of the air-conditioner is off.
14. SILENCE
* When the unit is on, press the “MENU” button, then press , , and to
choose the “SILENCE” character, when the “SILENCE” character will blink, and
press the “OK” button to highlight (not highlight ) the “SILENCE” character , which
will activate (deactivate) the function of silent wind.
15. ELE.H
* When the unit is on, press the “MENU” button, then press , , and to
choose the “SILENCE” character, when the “SILENCE” character will blink, and
press the “OK” button to highlight (not highlight ) the “SILENCE” character , which
will activate (deactivate) the function of silent wind.
* The unit will activate the auxiliary heating function automatically according to the
ambient temperature, so as to accelerate the heating.
* This button is disabled on some models.
16.DISPLAY
* Press the “MENU” button, then press , , and to choose the “DISPLAY”
character, when the character “DISPLAY” will blink, and press the “OK” button to
activate (deactivate) the function of screen display.
17.LIGHT
* The unit will activate or deactivate automatically the function of display on the
air-conditioner screen according to the indoor ambient brightness.
* When the unit is on, press the “MENU” button, ,then press , , and to
choose the “LIGHT” character, when the “LIGHT” character will blink, and press the
“OK” button to highlight (not highlight) the character “LIGHT”, which will activate
(deactivate) the function of light sensing.
22.Anti-F(Only YKR-T/021E)
* Anti-F function: When the unit is closed under the modes of cooling, dry or auto
(cooling), it will continue to operate for about 3 minutes to dry the moisture on the
evaporator, so as to prevent the accumulation of bacteria on the evaporator, which
causes fungus and strange smell and is harmful to the health.