Table Of Contents - Argo AE4MI91AH Technical & Service Manual

1. OPERATING RANGE ............................................................................................................................... 1
2. SPECIFICATIONS
2-1. Unit Specifications .......................................................................................................................... 2
2-2. Major Component Specifications.................................................................................................... 3
2-3. Other Component Specifications.................................................................................................... 4
3. DIMENSIONAL DATA............................................................................................................................... 5
4. REFRIGERANT FLOW DIAGRAM .......................................................................................................... 6
5. PERFORMANCE DATA
5-1. Performance Charts (4-room multi) ............................................................................................... 7
6. ELECTRICAL DATA
6-1. Electric Wiring Diagram .................................................................................................................. 11
7. INSTALLATION INSTRUCTIONS
7-1. Indoor Unit ...................................................................................................................................... 12
7-2. Outdoor Unit ................................................................................................................................... 14
7-3. Diagram of Outdoor Unit Installation .............................................................................................. 15
7-4. Recommended Wire Length and Diameter .................................................................................... 16
7-5. Wiring System Diagram.................................................................................................................. 16
8. FUNCTIONS
8-1. Defrost Detection and End ............................................................................................................ 17
8-2. Current Control .............................................................................................................................. 18
8-3. Low Start Current .......................................................................................................................... 18
8-4. Compressor Temperature Control ................................................................................................. 18
8-5. Outdoor Fan Control ...................................................................................................................... 18
8-6. Control at HEAT Start-up ............................................................................................................... 19
9. TROUBLESHOOTING
9-1. Conditions That Do Not Represent Trouble .................................................................................. 20
9-2. Outdoor Unit Trouble Diagnostics ................................................................................................. 21
9-3. Checking the Outdoor System ....................................................................................................... 22
9-4. Unit Problems and Inspection Points ............................................................................................. 23
9-5. Explanation of Functions ............................................................................................................... 26
10.REFRIGERANT R410A: SPECIAL PRECAUTIONS WHEN SERVICING UNIT
10-1. Characteristics of New Refrigerant R410A..................................................................................... 30
10-2. Checklist Before Servicing.............................................................................................................. 30
10-3. Tools Specifically for R410A .......................................................................................................... 32
10-4. Tubing Installation Procedures ...................................................................................................... 32
10-5. In Case of Compressor Malfunction .............................................................................................. 33
10-6. In Case Refrigerant is Leaking ....................................................................................................... 35
10-7. Charging Additional Refrigerant .................................................................................................... 37
10-8. Retro-Fitting Existing Systems ....................................................................................................... 37
APPENDIX
.................................................................................................................................................. 38

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