LG Electronics AMNH093APM0(LMAN090HNS) service manual Defrost ControlHeating, Fuzzy Operation

Page 41

Operation

27°C(80.6°F), it operates with Super-Low(while in sleep mode, with the medium airflow speed).

•While compressor off, the indoor fan is off when the indoor pipe temp is below 33°C(91.4°F), when above 35°C(95°F) , it operates with the low airflow speed.

•While in defrost control, the indoor is outdoor fans are turned off.

■Defrost Control(Heating)

•Defrost operation is controlled by timer and sensing temperature of outdoor pipe.

•The first defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 35 minutes passed from starting of heating operation and more than 4 minutes operation of compressor.

•Defrost ends after 12 minutes passed from starting of defrost operation when the outdoor pipe temperature rises over 15°C(59°F) even before 12 minutes.

•The second defrost starts only when the outdoor pipe temperature falls below -6°C(21.2°F) after 35 minutes passed from ending of the first defrost and more than 4 minutes operation of compressor.

■Fuzzy Operation

•When any of operation mode is not selected like the moment of the power on or when 3 hrs has passed since the operation off, the operation mode is selected.

•When determining the operation mode, the compressor, the outdoor fan, and the 4 way valve are off and only the indoor fan is operated for 15 seconds. Then an operation mode is selected according to the intake air temp at that moment as follows.

24°C(75.2°F) ≤ Inatake Air Temp

➲ Fuzzy Operation for Cooling

21°C(69.8°F) ≤ Inatake Air Temp<24°C(75.2°F)

➲ Fuzzy Operation for Dehumidification

Inatake Air Temp<21°C(69.8°F)

➲ Fuzzy Operation for Heating

•If any of the operation modes among cooling / dehumidification / heating mode operations is carried out for 10 sec or longer before Fuzzy operation, the mode before Fuzzy operation is operated.

1)Fuzzy Operation for Cooling

•According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C(32.9°F) or more

below the setting temp, the compressor is turned off. When 0.5°C(32.9°F) or more above the setting temp, the

compressor is turned on.

 

Compressor ON Temp

➲ Setting Temp +0.5°C(32.9°F)

Compressor OFF Temp

➲ Setting Temp + 0.5°C(32.9°F)

•At the beginning of Fuzzy mode operation, the setting temperature is automatically selected according to the intake air temp at that time.

26°C(78.8°F)≤ Intake Air Temp

➲ 25°C(77°F)

24°C(75.2°F)≤ Intake Air Temp<26°C(78.8°F)

➲ Intake Air Temp + 1°C(33.8°F)

22°C(71.6°F)≤ Intake Air Temp<24°C(75.2°F)

➲ Intake Air Temp + 0.5°C(32.9°F)

18°C(64.4°F)≤ Intake Air Temp<22°C(71.6°F)

➲ Intake Air Temp

Intake Air Temp<18°C(64.4°F)

➲ 18°C(64.4°F)

•When the Fuzzy key (Temperature Control key) is input after the initial setting temperature is selected, the Fuzzy key value and the intake air temperature at that time are compared to select the setting temperature automatically according to the Fuzzy rule.

•While in Fuzzy operation, the airflow speed of the indoor fan is automatically selected according to the temper- ature.

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Contents Indoor Unit Room Type Art Cool Type Multi Type Air ConditionerTable of Contents Outdoor Unit Model Number NomenclatureIndoor Unit Combination table Symbols Used in this ManualInstallation Safety PrecautionsBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerBe cautious when unpacking Do not place anything on the power cableBe sure the installation area does not deteriorate with age OperationDo not allow water to run into electric parts Nect the power supply cableSmoke comes from product Hurricane arrivesInstall the drain hose to ensure that Keep level even when When the product is soakedInstalling the product Not enter the productAir flow OperationalVents, etc Not use harsh detergents, solWhen cleaning or maintaining Ly. Clean the filter every twoDo not step on or put anyting on the product. outdoor units Do not drink the water drained from the productSplit Type Indoor DimensionsIndoor Unit Outdoor Unit Indoor Unit Product SpecificationsModel A2UC243FA0LMU240CE A2UH243FA0LMU240HE Outdoor Unit Multiple piping modelsInstallation Tools InstallationInstallation Parts Outdoor unit Rooftop InstallationsSelect the best location 24k Piping length and elevationMulti Piping Type Fixing Installation PlateStandard Type Open panel front Preparing work for Installation Artcool Type OnlyRemove cover pipe and cover side Drain hose junctionPut an Installation Guide Map on the desired surface Sticking the installation guide map and fixing Indoor unitDrill a hole in the wall Drive the fore plastic anchors into drilled pointsFlaring work Flaring Work and Connection of PipingIndoor Connecting the PipingCheck Wrap the insulation material around the connecting por- tion For left rear piping Connection Indoor Drive two screws Panel AssemblyArt Cool Type onlyBad case Good caseRemote Control Preparationoptional Outdoor unit OutdoorConnect the cable to the Indoor unit Connecting the Cable between Indoor Unit and Outdoor UnitOutdoor unit Connect the cable to the Outdoor unitHow to connect wiring to the terminals Connection method of the connecting cableExampleAttach the Grille onto the cabinet Drain piping Checking the drainageTo check the drainage Forming the piping Checking method Air Purging and EvacuationPreparation Leakage testFinishing the job Repeat evacuation procedure for each indoor unitEvacuation Additional ChargingSplit, Art Cool Type Test RunningSoft Dry Operation Mode Cooling Mode OperationHeating Mode Operation OperationFuzzy Operation for Cooling Defrost ControlHeatingFuzzy Operation Off-Timer Operation On-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationSleep Timer Operation Off-Timer = On-Timer OperationChaos Swing Mode Chaos Natural Wind ModeBuzzer Sounding Operation Forced OperationSplit Type Indoor Unit Function of Indoor UnitArt Cool Type Indoor Unit IndicatorOperation DefrostDeice control HeatingFunction of Outdoor Unit 15 2nd F Button Remote Control OperationCooling Model , Heat Pump Model To remove the Grille from the Chassis DisassemblyTo remove the Control Box To remove the Motor Cover To remove the Control Box To remove the Motor To remove the EvaporatorBefore removing the Turbo Fan Split Type Schematic DiagramElectronic Control Device Outdoor TMP87CM41F RY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Art Cool Type Indoor Unit Wiring DiagramBottom View Components LocationsArt Cool Type Schematic Diagram Component side Solder side Refrigeration Cycle Diagram Troubleshooting GuideA2UH243FA0LMU240HE A2UC243FA0 LMU240CEOutdoor Error Indoor ErrorError Indicator Self-diagnosis FunctionTrouble analysis Cycle Troubleshooting GuideProcedure Specification Remedy Electronic Parts Troubleshooting GuideProduct doesnt operate with the remote controller Check Point Comp. on Comp. OFF Compressor/Outdoor Fan are dont operateNector Trouble 4 When indoor Fan does not operateTroubleshooting Guide Check Point Error CodeIndoor air sensor Indoor inlet pipe sensorCommunication line is shorted at GND Power input AC 230V.Outdoor, IndoorError Title Cause of error Check point & Normal condition Outdoor air sensor Title Cause of error Check point & Normal conditionCondensor pipe sensor Pipe sensorWay Valve Liguid Side Way, 3-way ValvePumping down ProcedureAir purging of the charge hose Set the liquid side valve to the closed positionAll amount of refrigerant leaked Mount the valve caps and the service port capsEvacuation Gas Charging Mount the valve stem nuts and the service port nutAfter Evacuation Connect the gauge to the charging cylinderS4, SE chassis Exploded View & Replacement Parts ListLMN090HE Parts List S4, SE chassisS4 chassis SE chassis SP3 Chassis Art Cool Type Filter ASSEMBLY,AIR Cleaner Parts List SP3 chassisA2UC243FA0 LMU240CE Description Parts List A2UH243FA0LMU240HE, A2UC243FA0 LMU240CELocation April No A20462Z

AMNC093APM0(LMAN090CNS), AMNH123DEA0 (LMN120HE), A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS), A2UH243FA0(LMU240HE) specifications

LG Electronics has established a prominent position in the HVAC (heating, ventilation, and air conditioning) market with its diverse range of air conditioning units, including models AMNH123APM0 (LMAN120HNS), AMNH123DEA0 (LMN120HE), AMNC123DEA0 (LMN120CE), A2UH243FA0 (LMU240HE), and A2UC243FA0 (LMU240CE). Each of these models is designed to provide efficient cooling and heating solutions, boasting advanced technologies and user-friendly features.

The AMNH123APM0 (LMAN120HNS) model stands out for its energy efficiency, thanks to its inverter technology that adjusts power consumption according to the cooling or heating demand. This feature not only reduces energy costs but also enhances the lifespan of the unit. Additionally, its compact design allows for easy installation in various residential or commercial settings.

Similarly, the AMNH123DEA0 (LMN120HE) offers robust performance with its variable-speed compressor technology. This model ensures precise temperature control and minimal fluctuations, promoting comfort throughout the space. The unit also incorporates a quiet operation mode, making it ideal for bedrooms or offices where noise levels need to be minimized.

The AMNC123DEA0 (LMN120CE) is another compelling choice, featuring a sleek design that fits seamlessly into any décor. It operates efficiently in various weather conditions, maintaining a consistent indoor climate year-round. Its smart diagnostic system simplifies maintenance, allowing for timely troubleshooting and ensuring long-term reliability.

For larger spaces, the A2UH243FA0 (LMU240HE) and A2UC243FA0 (LMU240CE) models provide effective solutions with their powerful cooling and heating capacities. These units are equipped with multi-zone capabilities, allowing users to customize temperatures for different areas of a building. The advanced filtration system in these models captures dust and allergens, improving indoor air quality.

Another noteworthy feature across these models is their SmartThinQ technology, which enables users to control their systems remotely via a smartphone app. This feature not only adds convenience but also facilitates energy management by allowing users to monitor and adjust settings on the go.

In conclusion, LG Electronics offers a range of HVAC solutions with its AMNH123APM0, AMNH123DEA0, AMNC123DEA0, A2UH243FA0, and A2UC243FA0 models. With energy-efficient technology, user-friendly features, and advanced performance capabilities, these air conditioning units are designed to meet the diverse cooling and heating needs of modern consumers while ensuring environmental sustainability.
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