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