iii
Contents
Page
Please Read Before Starting
Important
....................................................... i
Check of Limit Density
Important
................................................................ii
Line Up ......................................................................................................... iv
Section 1 :
ECO MULTI SYSTEM Unit Specifications ........................ I - 1
1. Outdoor Unit ....................................................................................................... I -
3
2. 4-way Air Discharge Semi-concealed Type ........................................................I - 19
3. 2-way Air Discharge Semi-concealed Type ........................................................I - 34
4. 1-way Air Discharge Semi-concealed Type ........................................................I - 48
5. Wall Mounted Type ............................................................................................. I - 56
6. Ceiling Mounted Type ......................................................................................... I - 66
7. Concealed Duct Type ......................................................................................... I - 78
8. Concealed Duct High Static Pressure Type ........................................................I - 97
9. Floor-Standing Type (F Type) ............................................................................. I - 107
10. Concealed Floor-Standing Type (FM Type) ........................................................I - 119
Section 2 :
Processes and Functions ................................................ II - 1
1. Compressor Control ............................................................................................ II -
2
2. Reverse Cycle Defrosting ................................................................................... II -
5
3. Reverse Cycle Starting Control ........................................................................... II -
6
4. Outdoor Fan Control ........................................................................................... II -
6
5. 4-way Valve Switching Control ............................................................................ II -
6
6. Save Valve Control ............................................................................................. II -
6
7. Room Temperature Control ................................................................................ II -
7
8. Automatic Cooling Control .................................................................................. II -
8
9. Dehumidifying Control ......................................................................................... II -
8
10. Heating Preparations .......................................................................................... II -
9
11. Automatic Fan Speed Control ............................................................................. II - 10
12. Auto-flap Control ................................................................................................. II - 11
13. Drain Pump Control ............................................................................................ II - 12
14. Indoor Electronic Control Valve ........................................................................... II - 12
Section 3 :
Service Procedures ......................................................... III - 1
1. Troubleshooting .................................................................................................. III - 2
2. Sensor and Solenoid Layout Diagram ................................................................ III - 37
3. Thermistor Characteristic Curve ......................................................................... III - 44
4. Test Run ............................................................................................................. III - 45
5. PCBs and Their Location .................................................................................... III - 48
6. Compressor Defects ........................................................................................... III - 51
7. Operation Procedure for Replacing the Compressor ......................................... III - 52
Section 4 :
Electrical Data .................................................................. IV - 1
1. Outdoor Unit ....................................................................................................... IV - 2
2. Indoor Unit .......................................................................................................... IV - 10