Table of Contents
Page
1. OPERATING RANGE .............................................................................................................................. 1
2. SPECIFICATIONS
2-1. Unit Specifications .......................................................................................................................... 2
2-2. Major Component Specifications.................................................................................................... 8
2-3. Other Component Specifications.................................................................................................... 17
3. DIMENSIONAL DATA.............................................................................................................................. 18
4. REFRIGERANT FLOW DIAGRAM ......................................................................................................... 22
5. PERFORMANCE DATA
5-1. Performance charts ....................................................................................................................... 24
5-2. Air Throw Distance Chart .............................................................................................................. 26
5-3. Cooling Capacity ........................................................................................................................... 28
6. ELECTRICAL DATA
6-1. Electrical Characteristics ................................................................................................................ 31
6-2. Electric Wiring Diagrams ................................................................................................................ 34
7. FUNCTION
7-1. Room Temperature Control ........................................................................................................... 38
7-2. Dry Operation ................................................................................................................................ 39
7-3. Freeze Prevention ......................................................................................................................... 40
7-4. Outdoor Fan Speed Control .......................................................................................................... 41
8. TROUBLESHOOTING
8-1. Check before and after troubleshooting ........................................................................................ 42
8-2. Air conditioner does not operate .................................................................................................... 43
8-3. Some part of air conditioner does not operate .............................................................................. 47
8-4. Air conditioner operates, but abnormalities are observed ............................................................. 50
8-5. If a sensor is defective ................................................................................................................... 51
9. REFRIGERANT R407C: SPECIAL PRECAUTIONS WHEN SERVICING THE UNIT
9-1. Characteristics of new refrigerant R407C....................................................................................... 52
9-2. Checklist before serving ................................................................................................................. 52
9-3. Tools specifically for R407C ........................................................................................................... 53
9-4. For tubing installation procedures .................................................................................................. 53
9-5. In case of compressor malfunction................................................................................................. 54
9-6. In case refrigerant is leaking........................................................................................................... 56
9-7. Charging additional refrigerant ....................................................................................................... 58
9-8. Retro-fitting existing systems.......................................................................................................... 58
10. CHECKING ELECTRICAL COMPONENTS
10-1. Measurement of Insulation Resistance .......................................................................................... 59
10-2. Checking Continuity of Fuse on PCB Ass'y.................................................................................... 60
10-3. Checking Motor Capacitor ............................................................................................................. 60
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