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