Table of Contents
Page
1. OPERATING RANGE .............................................................................................................................. 1
2. SPECIFICATIONS
2-1. Unit Specifications .......................................................................................................................... 2
2-2. Major Component Specifications.................................................................................................... 5
2-3. Other Component Specifications.................................................................................................... 11
3. DIMENSIONAL DATA.............................................................................................................................. 12
4. REFRIGERANT FLOW DIAGRAM ......................................................................................................... 15
5. PERFORMANCE DATA
5-1. Performance charts ....................................................................................................................... 17
5-2. Air Throw Distance Chart .............................................................................................................. 19
5-3. Cooling Capacity ........................................................................................................................... 21
6. ELECTRICAL DATA
6-1. Electrical Characteristics ................................................................................................................ 24
6-2. Electric Wiring Diagrams ................................................................................................................ 25
7. FUNCTION
7-1. Room Temperature Control ........................................................................................................... 28
7-2. Dry Operation ................................................................................................................................ 29
7-3. Freeze Prevention ......................................................................................................................... 30
7-4. Outdoor Fan Speed Control .......................................................................................................... 31
8. TROUBLESHOOTING
8-1. Check before and after troubleshooting ........................................................................................ 32
8-2. Air conditioner does not operate .................................................................................................... 33
8-3. Some part of air conditioner does not operate .............................................................................. 37
8-4. Air conditioner operates, but abnormalities are observed ............................................................. 40
8-5. If a sensor is defective ................................................................................................................... 41
9. REFRIGERANT R407C: SPECIAL PRECAUTIONS WHEN SERVICING THE UNIT
9-1. Characteristics of new refrigerant R407C....................................................................................... 42
9-2. Checklist before serving ................................................................................................................. 42
9-3. Tools specifically for R407C ........................................................................................................... 43
9-4. For tubing installation procedures .................................................................................................. 43
9-5. In case of compressor malfunction................................................................................................. 44
9-6. In case refrigerant is leaking........................................................................................................... 46
9-7. Charging additional refrigerant ....................................................................................................... 48
9-8. Retro-fitting existing systems.......................................................................................................... 48
10. CHECKING ELECTRICAL COMPONENTS
10-1. Measurement of Insulation Resistance .......................................................................................... 49
10-2. Checking Continuity of Fuse on PCB Ass'y.................................................................................... 50
10-3. Checking Motor Capacitor ............................................................................................................. 50
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