BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL
SERVICE MANUAL
ONLY FOR AUTHORIZED SERVICE PERSONNEL
Multi Type Air Conditioner
TABLE OF CONTENTS
2 Multi type Air Conditioner
Multi type Air Conditioner Service Manual
Installation Parts
Model Number Nomenclature
Service Manual
Indoor Unit
Outdoor Unit
Combination table
SymbolsUsedinthisManual
4 Multi type Air Conditioner
This symbol alerts you to the risk of electric shock
Installation
Safety Precautions
Safety Precautions
Be sure not to do Be sure to follow the instruction
Do not install, remove, or re
Do not modify or extend the power cable
install the unit by yourself
and installing the product
Do not place a heater or other appliances near the power cable
Do not plug or unplug the power supply plug during operation
nect the power supply cable
Do not allow water to run into electric parts
Turn the main power off when cleaning or maintaining the product
When the product is soaked
not enter the product
8 Multi type Air Conditioner
Do not expose the skin directly to cool air for long periods of time
Operational
Dont sit in the draft
of air flow
when cleaning or maintaining
ly. Clean the filter every two
Do not step on or put anyting on the product. outdoor units
Do not drink the water drained from the product
Dimensions
Dimensions
IndoorUnit
1. Split Type Indoor
12 Multi type Air Conditioner
OutdoorUnit
Dimensions
24kBtu/h
Product Specifications
Product Specifications
Indoor Unit
Service Manual
14 Multi type Air Conditioner
Outdoor Unit - Multiple piping models
Product Specifications
Model
InstallationParts
Installation
InstallationTools
Installation
Select the best location
Rooftop Installations
Indoor unit
Outdoor unit
Multi Piping Type
Piping length and elevation
Installation
Service Manual
Installation
Fixing Installation PlateStandard Type
18 Multi type Air Conditioner
Open panel front
Preparing work for Installation Artcool Type Only
Remove cover pipe and cover side
Drain hose junction
Sticking the installation guide map and fixing Indoor unit
INSTALLATION
Drill a hole in the wall
20 Multi type Air Conditioner
Flaringwork
Flaring Work and Connection of Piping
Flaring Work and Connection of Piping
Cut the pipes and the cable
Check
Connecting the Piping
Indoor
For right rear piping
Connecting the piping to the indoor unit and drain hose to drain pipe
Service Manual
Wrap the insulation material around the connecting por- tion
Flaring Work and Connection of Piping
24 Multi type Air Conditioner
For left rear piping
Flaring Work and Connection of Piping
Drain pipe
Wrap the insulation material around the connecting por- tion
Service Manual
Indoor unit installation
Flaring Work and Connection of Piping
26 Multi type Air Conditioner
Panel AssemblyArt Cool Type only
Panel Front Connector
Flaring Work and Connection of Piping
Good case
Service Manual
Bad case
Flaring Work and Connection of Piping
28 Multi type Air Conditioner
REMOTE CONTROL PREPARATIONOPTIONAL
HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES
Flaring Work and Connection of Piping
Service Manual
Outdoor
Flaring Work and Connection of Piping
Outside diameter
Connectthe cabletotheIndoorunit
Connecting the Cable between Indoor Unit and Outdoor Unit
30 Multi type Air Conditioner
Connecting the Cable between Indoor Unit and Outdoor Unit
Connecting the Cable between Indoor Unit and Outdoor Unit
Connectthe cabletotheOutdoor unit
Service Manual
Every wire must be connected firmly
32 Multi type Air Conditioner
How to connect wiring to the terminals
Connectionmethod ofthe connectingcableExample
Connecting the Cable between Indoor Unit and Outdoor Unit
Connecting the Cable between Indoor Unit and Outdoor Unit
Connectthecable totheindoorunit
Service Manual
2. Attach the Grille onto the cabinet
Checkingthedrainage
Checking the Drainage, Forming the Pipings and Long Pipe Setting
To check the drainage
Drain piping
Formingthe piping
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Service Manual
Air Purging and Evacuation
CAUTION Be sure to use a manifold valve for leak testing
Checkingmethod
Air Purging and Evacuation
Evacuation
Repeat evacuation procedure for each indoor unit
Finishing the job
Checking the Drainage, Forming the Pipings and Long Pipe Setting
Charging
Charging
38 Multi type Air Conditioner
Max length of
Test Running
Test Running
Split, Art Cool Type
Service Manual
Functionofcontrol
Operation
1. MAIN UNIT FUNCTION
Operation
Fuzzy Operation
Defrost ControlHeating
Service Manual
Operation
Off-Timer Operation
On-Timer Operation
Airflow Speed Selection
42 Multi type Air Conditioner
Sleep Timer Operation
Off-Timer = On-Timer Operation
Chaos Swing Mode
Chaos Natural Wind Mode
Buzzer Sounding Operation
Forced Operation
44 Multi type Air Conditioner
Operation
Split Type Indoor Unit
FunctionofIndoorUnit
Service Manual
Operation ON/OFF by Remote controller Sensing the Room Temperature
46 Multi type Air Conditioner
Art Cool Type Indoor Unit
Operation ON/OFF by Remote controller Sensing the Room Temperature
Room temperature control
Outdoor Unit
FunctionofOutdoor Unit
Service Manual
Operation
48 Multi type Air Conditioner
RemoteControlOperation
The Remote Controller transmits the signals to the system
ROOM TEMPERATURE
Disassembly
Disassembly
Indoor Unit
Service Manual
Disassembly
50 Multi type Air Conditioner
When repair, do not damage the Caution label
2. To remove the Control Box
Disassembly
Service Manual
5. To remove the Motor Cover
6. To remove the Cross-Flow Fan
52 Multi type Air Conditioner
Be sure the power switch is set to “OFF”
Disassembly
Art Cool Type Indoor Unit
Service Manual
Disassembly
3 To remove the Evaporator
4 Before removing the Turbo Fan
Schematic Diagram
Schematic Diagram
ElectronicControlDevice
1. Indoor Unit
Schematic
Diagram
Service
Manual
56 Multi type Air Conditioner
2. Outdoor Unit
Schematic Diagram
TMP87CM41F
R102
Service Manual
Schematic Diagram
3. Outdoor Unit
Wiring Diagram
2. Art Cool Type Indoor Unit
1. Room Type Indoor Unit -S4/SE chassis
TOP VIEW
ComponentsLocations
BOTTOM VIEW
MAIN P.C.B ASM 1 Split Type
60 Multi type Air Conditioner
2 Art Cool Type
Schematic Diagram
TOP VIEW BOTTOM VIEW
2 Art Cool Type 6871A20462
2. Display ASSEMBLY 1 Split Type 6871A20680
Schematic Diagram
Service Manual
62 Multi type Air Conditioner
1 Component side
Schematic Diagram
3. Outdoor Unit
Service Manual
2 Solder side
Schematic Diagram
RefrigerationCycleDiagram
Troubleshooting Guide
Troubleshooting Guide
1. A2UH243FA0LMU240HE
Outdoor Error
Indoor Error
Self-diagnosisFunction
Troubleshooting Guide
Trouble analysis
CycleTroubleshooting Guide
66 Multi type Air Conditioner
Troubleshooting Guide
Trouble
ElectronicPartsTroubleshooting Guide
The Product doesn’t operate at all
Troubleshooting Guide
68 Multi type Air Conditioner
Product doesnt operate with the remote controller
Troubleshooting Guide
Trouble
Troubleshooting Guide
The Compressor/Outdoor Fan are dont operate
Trouble
Check Point
When indoor Fan does not operate
Trouble 4 When indoor Fan does not operate
70 Multi type Air Conditioner
Troubleshooting Guide
Troubleshooting Guide
Trouble 5 When the louver does not operate
When Vertical Louver does not operate
Check Point
ErrorCode
72 Multi type Air Conditioner
Troubleshooting Guide
Troubleshooting Guide
Service Manual
Power input AC 230V.Outdoor, Indoor
The connecting wires are misconnected
Troubleshooting Guide
74 Multi type Air Conditioner
Error
Cause of error
Troubleshooting Guide
Service Manual
Cause of error
Check Point
2-way, 3-way Valve
2-way, 3-way Valve
76 Multi type Air Conditioner
2-way Valve Liguid Side
1 Pumping down
Procedure
Service Manual
2-way, 3-way Valve
78 Multi type Air Conditioner
2 Evacuation
Procedure
7. Mount the valve caps and the service port caps
Procedure
3 Gas Charging
5. Mount the valve stem nuts and the service port nut
2-way, 3-way Valve
Exploded View & Replacement Parts List
Exploded View & Replacement Parts List
S4, SE chassis
80 Multi type Air Conditioner
Exploded View & Replacement Parts List
Parts List S4, SE chassis
Service Manual
DESCRIPTION
Exploded View & Replacement Parts List
SP3 Chassis Art Cool Type
82 Multi type Air Conditioner
Exploded View & Replacement Parts List
Parts List SP3 chassis
Service Manual
COVER ASSEMBLY,TOPINDOOR
84 Multi type Air Conditioner
Outdoor Unit
Exploded View & Replacement Parts List
A2UC243FA0 LMU240CE
Exploded View & Replacement Parts List
Parts List A2UH243FA0LMU240HE, A2UC243FA0 LMU240CE
Service Manual
Location