Contents
Safety Precautions ...............................................................................................5
Pre-Installation Checklist .....................................................................................6
Product Introduction .............................................................................................7
Combinations for Outdoor and Indoor Units .........................................................7
Operating Ranges ................................................................................................9
Preparation for Installation ..................................................................................10
Selecting the Installation Location ......................................................................10
Connection Pipe Requirement ............................................................................11
Refrigerant Piping Precautions ...........................................................................12
Installing the Outdoor Unit ..................................................................................13
Condensate Management of the Outdoor Unit ...................................................13
Installing the Refrigerant Piping ..........................................................................14
Flaring Process and Bending Pipes ...................................................................14
Insulating the Refrigerant Piping and Connections ............................................15
Refrigerant Piping at the Outdoor Unit ...............................................................16
Piping Requirements ..........................................................................................17
Refrigerant Piping Between the Indoor and Outdoor Units ................................18
Vacuum and Refrigerant Leakage Detection ......................................................20
Wiring Precautions .............................................................................................21
Outdoor Wiring Connections ..............................................................................21
Stranded Wiring Connections .............................................................................22
Electrical Connections ........................................................................................23
Power Supply Wiring...........................................................................................24
Cable Specifications and Grounding Requirements ...........................................24
Installation of Controllers ....................................................................................24
Post Installation Checklist ..................................................................................25
Refrigerant System Diagrams ............................................................................26
Electrical Connections at the Outdoor Unit ........................................................28
Wiring Diagrams .................................................................................................30
Dimensional Diagrams .......................................................................................33
Troubleshooting ..................................................................................................35
Error Codes ........................................................................................................36
Maintenance .......................................................................................................38
Parts Replacement .............................................................................................38
After-Sales Service .............................................................................................38
Summary of Contents for M4THM1518A
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