E12RKUA Installation Manual
Page 1
... with appropriate coil components. Remove the air filters. 3. Set the vertical airflow direction louvers to the room air conditioner. CHECK THE DRAINAGE • Open front panel and remove air filters. (Drainage checking can be connected without removing the front grille.) • Pour a glass of water into Indoor Unit • The inside and outside connection cable can be placed on the unit, you should purchase () Applicable piping kit Piping size Gas Liquid...
... with appropriate coil components. Remove the air filters. 3. Set the vertical airflow direction louvers to the room air conditioner. CHECK THE DRAINAGE • Open front panel and remove air filters. (Drainage checking can be connected without removing the front grille.) • Pour a glass of water into Indoor Unit • The inside and outside connection cable can be placed on the unit, you should purchase () Applicable piping kit Piping size Gas Liquid...
E12RKUA Operating Manual
Page 3
... save energy. Quick guide 1 3 Inserting the batteries 2 1 Pull out the back cover of remote control 2 Insert AAA or R03 batteries (can be used ~ 1 year) 3 Close the cover 2 3 Clock setting TIMER ON SET 1 Press CLOCK 1 2 3 2 Set the time OFF CANCEL 1 AC RC SET CHECK CLOCK RESET 3 Confirm Basic operation 1 Select the desired mode AUTO HEAT FAN DRY COOL AUTO FAN HEAT COOL SPEED AIR 2 Start/stop the operation DRY SWING FAN 2 OFF/ON AUTO ECONAVI COMFORT 3 MODE 1 TEMP AIR SWING POWERFUL/ QUIET FAN SPEED TIMER ON SET 1 2 3 OFF...
... save energy. Quick guide 1 3 Inserting the batteries 2 1 Pull out the back cover of remote control 2 Insert AAA or R03 batteries (can be used ~ 1 year) 3 Close the cover 2 3 Clock setting TIMER ON SET 1 Press CLOCK 1 2 3 2 Set the time OFF CANCEL 1 AC RC SET CHECK CLOCK RESET 3 Confirm Basic operation 1 Select the desired mode AUTO HEAT FAN DRY COOL AUTO FAN HEAT COOL SPEED AIR 2 Start/stop the operation DRY SWING FAN 2 OFF/ON AUTO ECONAVI COMFORT 3 MODE 1 TEMP AIR SWING POWERFUL/ QUIET FAN SPEED TIMER ON SET 1 2 3 OFF...
E12RKUA Operating Manual
Page 4
.... Using refrigerant type other objects into the air conditioner indoor or outdoor unit, rotating parts may cause product damage, burst and injury etc. Do not touch the outdoor unit during lightning, it may fall down accidentally. Power supply Do not use by a person responsible for use a modified cord, joint cord, extension cord or unspecified cord to avoid excess cooling. Improper installation and handling will cause leakage, electric shock...
.... Using refrigerant type other objects into the air conditioner indoor or outdoor unit, rotating parts may cause product damage, burst and injury etc. Do not touch the outdoor unit during lightning, it may fall down accidentally. Power supply Do not use by a person responsible for use a modified cord, joint cord, extension cord or unspecified cord to avoid excess cooling. Improper installation and handling will cause leakage, electric shock...
E12RKUA Operating Manual
Page 5
.... Remote control Do not use with any combustible equipment, aerate the room regularly. Stop using an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Interrupt (GFCI) or Appliance Leakage Current Interrupt (ALCI) to avoid injury, etc. Do not touch the sharp aluminium fin, sharp parts may cause an electric shock. Do not place a vase or water container on for long time during COOL/DRY mode operation...
.... Remote control Do not use with any combustible equipment, aerate the room regularly. Stop using an Earth Leakage Circuit Breaker (ELCB) or Ground Fault Interrupt (GFCI) or Appliance Leakage Current Interrupt (ALCI) to avoid injury, etc. Do not touch the sharp aluminium fin, sharp parts may cause an electric shock. Do not place a vase or water container on for long time during COOL/DRY mode operation...
E12RKUA Operating Manual
Page 7
... hand. For clock setting, please refer to Quick guide. AUTO COMFORT To maximize comfort AUTO COMFORT AIR SWING To adjust vertical airflow direction (Remote control display) • Keeps the room ventilated. • In COOL/DRY mode, if AUTO is set, the flap swings up to 35 minutes) before the actual set time in order to achieve the desired temperature on time. • Timer operation is based on...
... hand. For clock setting, please refer to Quick guide. AUTO COMFORT To maximize comfort AUTO COMFORT AIR SWING To adjust vertical airflow direction (Remote control display) • Keeps the room ventilated. • In COOL/DRY mode, if AUTO is set, the flap swings up to 35 minutes) before the actual set time in order to achieve the desired temperature on time. • Timer operation is based on...
E12RKUA Operating Manual
Page 8
... room. Human activity sensor operation ECONAVI ; Mode COOL/DRY HEAT Human Low activity Normal activity High activity Set temperature +2°F / +1°C -4°F / -2°C Absent +4°F / +2°C -4°F / -2°C AUTO COMFORT ; HEAT : Unit takes a while to setting temperature, outdoor temperature and room temperature. Detection area 90º • The human activity sensor performance is medium fan. Single Single split system Multi Multi split system Operation mode AUTO : During operation mode selection the POWER indicator blinks. ECONAVI and AUTO...
... room. Human activity sensor operation ECONAVI ; Mode COOL/DRY HEAT Human Low activity Normal activity High activity Set temperature +2°F / +1°C -4°F / -2°C Absent +4°F / +2°C -4°F / -2°C AUTO COMFORT ; HEAT : Unit takes a while to setting temperature, outdoor temperature and room temperature. Detection area 90º • The human activity sensor performance is medium fan. Single Single split system Multi Multi split system Operation mode AUTO : During operation mode selection the POWER indicator blinks. ECONAVI and AUTO...
E12RKUA Operating Manual
Page 10
... helps to cooling process. Symptom Cause Mist emerges from the • Make sure the receiver is always on pipes. Indoor fan stops occasionally during operation. • Circuit breaker switches off frequently. • Water/foreign particles have been set to heat, sun light, UV light, or environmental factor. fan speed setting. remote control. • Certain fluorescent lights may be due to the unit's compressor. control. • Water leaks from the indoor unit (maximum 30 seconds). The room has...
... helps to cooling process. Symptom Cause Mist emerges from the • Make sure the receiver is always on pipes. Indoor fan stops occasionally during operation. • Circuit breaker switches off frequently. • Water/foreign particles have been set to heat, sun light, UV light, or environmental factor. fan speed setting. remote control. • Certain fluorescent lights may be due to the unit's compressor. control. • Water leaks from the indoor unit (maximum 30 seconds). The room has...
E12RKUA Service Manual
Page 2
... Dry Operation 59 14.3 Heating Operation 59 14.4 Automatic Operation (For Multi Split Connection Only 60 14.5 Indoor Fan Motor Operation 60 14.6 Powerful Mode Operation 60 14.7 Auto restart control 60 14.8 Indication Panel 60 15. Servicing Mode 70 17.1 Auto Off/On Button 70 17.2 Cooling Only Operation (Single connection Only, Multi connection please refer to Multi outdoor manual).........71 17.3 Remote Control Button 72 18. Printed Circuit Board 28 10.1 Indoor Unit 28 10.2 Outdoor Unit 30 11. Dimensions 13 5.1 Indoor Unit 13 5.2 Outdoor Unit...
... Dry Operation 59 14.3 Heating Operation 59 14.4 Automatic Operation (For Multi Split Connection Only 60 14.5 Indoor Fan Motor Operation 60 14.6 Powerful Mode Operation 60 14.7 Auto restart control 60 14.8 Indication Panel 60 15. Servicing Mode 70 17.1 Auto Off/On Button 70 17.2 Cooling Only Operation (Single connection Only, Multi connection please refer to Multi outdoor manual).........71 17.3 Remote Control Button 72 18. Printed Circuit Board 28 10.1 Indoor Unit 28 10.2 Outdoor Unit 30 11. Dimensions 13 5.1 Indoor Unit 13 5.2 Outdoor Unit...
E12RKUA Service Manual
Page 3
... fixed properly. When installing air-conditioner unit at the connection point of air etc. Otherwise, it will cause water leakage, electric shock or fire. 6. It is not properly done, the set to user the operation, care and maintenance as below. Do not modify the machine, part, material during repairing service. 2. Install at the connection. 11. Do not install outdoor unit near handrail of residual oil is over current will...
... fixed properly. When installing air-conditioner unit at the connection point of air etc. Otherwise, it will cause water leakage, electric shock or fire. 6. It is not properly done, the set to user the operation, care and maintenance as below. Do not modify the machine, part, material during repairing service. 2. Install at the connection. 11. Do not install outdoor unit near handrail of residual oil is over current will...
E12RKUA Service Manual
Page 4
... remove the refrigeration piping. (Removal of emergency. During pump down accidentally. 12. Using of compressor without fixing refrigeration piping and valves at opened condition will tend to a circuit breaker for installation, servicing, reinstallation and during piping work . 10. If drainage is prohibited. Do not install this air conditioner to carry out the installation or servicing work for permanent connection. If you may cause injury. 5. It may fall down operation, stop the compressor before run the compressor. (Operation of refrigerant other location...
... remove the refrigeration piping. (Removal of emergency. During pump down accidentally. 12. Using of compressor without fixing refrigeration piping and valves at opened condition will tend to a circuit breaker for installation, servicing, reinstallation and during piping work . 10. If drainage is prohibited. Do not install this air conditioner to carry out the installation or servicing work for permanent connection. If you may cause injury. 5. It may fall down operation, stop the compressor before run the compressor. (Operation of refrigerant other location...
E12RKUA Service Manual
Page 33
... (Power supply cord ()) Conduit (Connection cable) Liquid side piping () Gas side piping () Additional drain hose () Control Board cover 33 Piping Elevation Length Max. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist. Length Min. o(1r 03m0o1m5re/1m6)" (319030o/0r8m"momre) • This illustration is advisable to avoid more than 2 blockage directions. Model Capacity (Btu/h) Piping size Gas Liquid Std. Piping Length Additional Refrigerant Piping...
... (Power supply cord ()) Conduit (Connection cable) Liquid side piping () Gas side piping () Additional drain hose () Control Board cover 33 Piping Elevation Length Max. For better ventilation & multiple-outdoor installation, please consult authorized dealer/specialist. Length Min. o(1r 03m0o1m5re/1m6)" (319030o/0r8m"momre) • This illustration is advisable to avoid more than 2 blockage directions. Model Capacity (Btu/h) Piping size Gas Liquid Std. Piping Length Additional Refrigerant Piping...
E12RKUA Service Manual
Page 39
... with torque wrench to outdoor multi Decide piping length and then cut edge. Vacuum pump Indoor unit Liquid side Two-way valve Outdoor unit Gas side Close OPEN Lo Hi Three-way valve Close CLOSE 1. Remove the valve caps of both of the equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in stages. Mount valve caps onto the...
... with torque wrench to outdoor multi Decide piping length and then cut edge. Vacuum pump Indoor unit Liquid side Two-way valve Outdoor unit Gas side Close OPEN Lo Hi Three-way valve Close CLOSE 1. Remove the valve caps of both of the equipment WHEN INSTALLING AN AIR CONDITIONER, BE SURE TO EVACUATE THE AIR INSIDE THE INDOOR UNIT AND PIPES in stages. Mount valve caps onto the...
E12RKUA Service Manual
Page 47
... to check for installation and reinstallation. - If the leak does not stop when the connections are tightened further, continue working from the service port of the 3-way valve. 2. Turn on the power switch of the vacuum pump and make sure micron gauge a value 500 microns and close the low side valve of outdoor units. 3. Do not release refrigerant during piping work for gas leakage...
... to check for installation and reinstallation. - If the leak does not stop when the connections are tightened further, continue working from the service port of the 3-way valve. 2. Turn on the power switch of the vacuum pump and make sure micron gauge a value 500 microns and close the low side valve of outdoor units. 3. Do not release refrigerant during piping work for gas leakage...
E12RKUA Service Manual
Page 55
.../OFF Timer setting. 13.11 Indication Panel LED Color Light ON Light OFF POWER Green Operation ON Operation OFF TIMER QUIET POWERFUL Orange Orange Orange Timer Setting ON Quiet Mode ON Powerful Mode ON Timer Setting OFF Quiet Mode OFF Powerful Mode OFF AUTO COMFORT Green Auto Comfort ON Auto Comfort OFF ECONAVI Green Econavi Mode ON Econavi Mode OFF Note: If POWER LED is blinking, the possible operation of the unit are Hot Start, during the operation of air conditioner, the compressor...
.../OFF Timer setting. 13.11 Indication Panel LED Color Light ON Light OFF POWER Green Operation ON Operation OFF TIMER QUIET POWERFUL Orange Orange Orange Timer Setting ON Quiet Mode ON Powerful Mode ON Timer Setting OFF Quiet Mode OFF Powerful Mode OFF AUTO COMFORT Green Auto Comfort ON Auto Comfort OFF ECONAVI Green Econavi Mode ON Econavi Mode OFF Note: If POWER LED is blinking, the possible operation of the unit are Hot Start, during the operation of air conditioner, the compressor...
E12RKUA Service Manual
Page 56
... AUTO COMFORT Sensor Abnormality H59 (no Timer LED blinking). ECONAVI & AUTO COMFORT Sensor operation OFF, but ECONAVI and AUTO COMFORT LED maintain ON. The unit still operate as normal. Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote control is pressed. ECONAVI and AUTO COMFORT Demo Mode To enable ECO DEMO mode, during unit is OFF (power standby): Remote control normal mode...
... AUTO COMFORT Sensor Abnormality H59 (no Timer LED blinking). ECONAVI & AUTO COMFORT Sensor operation OFF, but ECONAVI and AUTO COMFORT LED maintain ON. The unit still operate as normal. Sensor error counter can be cleared only after power supply reset or AC Reset button on the remote control is pressed. ECONAVI and AUTO COMFORT Demo Mode To enable ECO DEMO mode, during unit is OFF (power standby): Remote control normal mode...
E12RKUA Service Manual
Page 60
...;F. 14.5 Indoor Fan Motor Operation 14.5.1 Residual Heat Removal Control To prevent high pressure at indoor unit, when heating mode thermostat-off during the operation of air conditioner, the compressor will re-operate between three to four minutes (10 patterns to be set using remote control and the operation is decided by pressing powerful button again. 14.7 Auto restart control When the power supply is cut off condition or power supply OFF, indoor fan continue to operate at controlled fan speed for...
...;F. 14.5 Indoor Fan Motor Operation 14.5.1 Residual Heat Removal Control To prevent high pressure at indoor unit, when heating mode thermostat-off during the operation of air conditioner, the compressor will re-operate between three to four minutes (10 patterns to be set using remote control and the operation is decided by pressing powerful button again. 14.7 Auto restart control When the power supply is cut off condition or power supply OFF, indoor fan continue to operate at controlled fan speed for...
E12RKUA Service Manual
Page 70
...AC Reset" button at the remote control printed circuit board. The indoor unit will be activated if the Auto OFF/ON button is in order to set / change remote control transmission code, short or open jumpers at remote control. 70 To change the advance setting of Forced heating operation. Auto OFF/ON button pressed Auto Operation Main unit always continue Test Run (forced cooling) operation 5 sec 8 sec 11 sec 16 sec Test Run Operation Test Run Operation Remote Control Number (Forced Cooling Operation) (Forced Heating Operation) Switch Mode Remote Control Receiving...
...AC Reset" button at the remote control printed circuit board. The indoor unit will be activated if the Auto OFF/ON button is in order to set / change remote control transmission code, short or open jumpers at remote control. 70 To change the advance setting of Forced heating operation. Auto OFF/ON button pressed Auto Operation Main unit always continue Test Run (forced cooling) operation 5 sec 8 sec 11 sec 16 sec Test Run Operation Test Run Operation Remote Control Number (Forced Cooling Operation) (Forced Heating Operation) Switch Mode Remote Control Receiving...
E12RKUA Service Manual
Page 71
... unit will judge the operation mode base on remote controller temperature setting and Indoor Intake Sensor (New Auto Mode) or Outdoor Intake Sensor (Old Auto Mode) The unit will run Force Cooling operation. Power LED blinking. A long "Pit" sound will run Force Heating operation. The unit will be heard. Force Heating The unit will run Dry operation. DRY (with Timer) The unit will run Heating Operation. After 30s sampling, regardless of indoor intake or outdoor intake temperature judgement, the unit will turn ON by the timer and run Cooling operation. "Cool Only" mode...
... unit will judge the operation mode base on remote controller temperature setting and Indoor Intake Sensor (New Auto Mode) or Outdoor Intake Sensor (Old Auto Mode) The unit will run Force Cooling operation. Power LED blinking. A long "Pit" sound will run Force Heating operation. The unit will be heard. Force Heating The unit will run Dry operation. DRY (with Timer) The unit will run Heating Operation. After 30s sampling, regardless of indoor intake or outdoor intake temperature judgement, the unit will turn ON by the timer and run Cooling operation. "Cool Only" mode...
E12RKUA Service Manual
Page 75
... turned off or the RESET button on the main unit is pressed. 18.2.3 To Display Memorized Error Code (Protective Operation) 1 Turn power on. 2 Press the CHECK button on the remote control 3 "- -" will be repeated by turning power on again. 18.2.4 To Clear Memorized Error Code after breakdown repair, the Timer LED will light up for E C O N A V I OFF/ON AUTO COMFORT MODE TEMP POW ERFU QUIET L/ F A N SPEED AIR SWING TIMER ON 1 2 OFF SET CHECK CLOCK SET 3 CANCEL AC RC RESET...
... turned off or the RESET button on the main unit is pressed. 18.2.3 To Display Memorized Error Code (Protective Operation) 1 Turn power on. 2 Press the CHECK button on the remote control 3 "- -" will be repeated by turning power on again. 18.2.4 To Clear Memorized Error Code after breakdown repair, the Timer LED will light up for E C O N A V I OFF/ON AUTO COMFORT MODE TEMP POW ERFU QUIET L/ F A N SPEED AIR SWING TIMER ON 1 2 OFF SET CHECK CLOCK SET 3 CANCEL AC RC RESET...
E12RKUA Service Manual
Page 96
... switch off the power before remove and connect the component. ● Provide sufficient air passage. 18.4.19 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions Freeze prevention control takes place (when indoor pipe temperature is closed . Faulty indoor unit fan motor. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer. Faulty indoor pipe temperature sensor...
... switch off the power before remove and connect the component. ● Provide sufficient air passage. 18.4.19 H99 (Indoor Freeze Prevention Protection: Cooling or Soft Dry) Error Code will not display (no Timer LED blinking) but store in EEPROM Malfunction Decision Conditions Freeze prevention control takes place (when indoor pipe temperature is closed . Faulty indoor unit fan motor. Refrigerant shortage (refrigerant leakage). Clogged expansion valve or strainer. Faulty indoor pipe temperature sensor...
