Contents
Ceiling Cassette Air Conditioner
Table of Contents
Local model name
Models List
Indoor units
Outdoor units
Installation
Safety Precautions
Do not let electric parts of the product get wet
Do not install, remove, or re
Defective installation stand
Operational
Be cautious that water could not enter the product
Do not step on or put anyting on the product. outdoor units
Keep level even when installing the product
Thinner
Use two or more people to lift and transport the product
Features & Benefits
Two Thermistor Control
Swirl Swing
Space Control
Auto Restart Operation
Water Drain Pump
Time Delay Safety Function
Zero Standby Power
High Ceiling Operation
Ceiling Cassette
List of Functions
Nd F Button
Function of Remote Control
Wireless LCD Remote Control
Wired LCD Remote Control
Indoor unit type Ceilling Cassette 4way Model
Specifications
AT-C243HLFO AT-C343HLFO
Model No. LCN240CP/LC240CPI/LCN340CP/LC340CPI
Dimensional Drawings
Model No. LCU240CP/LC240CPO
Model No. LCU340CP/LC340CPO
Indoor Unit
Wiring Diagrams
LCU340CP/LC340CPO
Outdoor Unit
Cooling Only Models
Refrigerant Cycle Diagrams
Outdoor Unit
Installation
Select the best location
Indoor Unit
Settlement of outdoor unit
Indoor Unit Installation
24k/34k Btu/h 1Ø Cooling & Heating type
Wiring Connection
Air conditioner unit Piping side
Installation of Decoration Panel
Heat Insulation
Heat Insulation and pipings
Drain test
Drain Pipe Work
Drain Piping of Ceiling Cassette
Test running
Precautions in Test RUN
Evaluation of the performance
Connection of power supply
Two Thermistor System
Optional Operation
Remote Controller
Adjusting air volume to the height of ceiling
Procedure
Wiring design
Trouble analysis
Troubleshooting Guide
Cycle Troubleshooting Guide
Trouble
Electronic Parts Troubleshooting Guide
Product doesnt operate with the remote controller
When cooling does not operate
When indoor Fan does not operate
Trouble 5 When Vertical Louver does not operate
Self-diagnosis Function
Indoor Error
Outdoor Error
Error Indicator
Check Point
Troubleshooting CH01, CH02, CH06
Troubleshooting CH03
Troubleshooting CH04
Troubleshooting CH05, CH53
Troubleshooting CH24, CH25
Constant
Troubleshooting CH32, CH33
Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65
Troubleshooting CH51, CH60
Troubleshooting CH61, CH62
Way Valve Liguid Side Way Valve Gas Side
Way Valve
Set the liquid side valve to the closed position
Procedure
Pumping down
Air purging of the charge hose
All amount of refrigerant leaked
Mount the valve caps and the service port caps
Evacuation
Connect the gauge to the charging cylinder
Mount the valve stem nuts and the service port nut
Gas Charging
After Evacuation
Main P.C.B ASM
Electronic Control Device
Model No. LCN240CP/LCN340CP
Exploded View and Replacement Parts List
Description Remarks
Parts List
Model No. LCU240CP
Description Remarks LCU240CP / LC240CPO
Model No
Description Remarks LCU340CP / LC340CPO
Model No. PT-CDC1
Description Remarks PT-CDC1
No A20911A