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