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CONTENTS
ORIGINAL INSTRUCTION................................................................................. 3
WARNING INDICATIONS ON THE AIR CONDITIONER UNIT.......................... 5
PRECAUTION FOR SAFETY ............................................................................ 6
NEW REFRIGERANT (R410A)........................................................................ 11
1. SPECIFICATIONS .................................................................................... 13
1-1. Indoor Unit......................................................................................................... 13
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)....................................... 15
2-1. Indoor Unit......................................................................................................... 15
3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .............................. 16
3-1. Indoor Unit......................................................................................................... 16
4. WIRING DIAGRAM ................................................................................... 17
4-1. Indoor Unit......................................................................................................... 17
4-2. Fan Characteristics .......................................................................................... 18
5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 21
5-1. Indoor Unit......................................................................................................... 21
6. INDOOR CONTROL CIRCUIT .................................................................. 22
6-1. Indoor Controller Block Diagram..................................................................... 22
6-2. Control Specifications ...................................................................................... 23
6-3. Indoor Print Circuit Board ................................................................................ 30
7. INDOOR UNIT TROUBLESHOOTING ...................................................... 32
7-1. Summary of Troubleshooting........................................................................... 32
8. REPLACEMENT OF SERVICE P.C. BOARD............................................ 51
8-1. Indoort Unit ....................................................................................................... 51
9. SETUP AT LOCAL SITE AND OTHERS .................................................. 55
9-1. Indoor Unit......................................................................................................... 55
9-2. Setup at Local Site / Others ............................................................................. 62
9-3. How to Set up Central Control Address Number ........................................... 64
10. ADDRESS SETUP.................................................................................... 66
10-1. Address Setup Procedure ................................................................................ 66
10-2. Address Setup & Group Control...................................................................... 67
10-3. Address Setup (Manual Setting from Remote Controller)............................. 69
11. OWNER’S MANIAL .................................................................................. 71
12. INSTALLATION MANUAL ........................................................................ 82
13. DETACHMENTS ..................................................................................... 102
11-1. Indoor Unit....................................................................................................... 102
14. EXPLODED VIEWS AND PARTS LIST .................................................. 106
12-1. Indoor Unit....................................................................................................... 106
