Mitsubishi using aluminum coil as per attached file.
Response from customers:
1.End-user have negative thinking with this material
2.End-user know cost of aluminum lower than copper
Response from Dealer/Installer/Technician service:
1.They know that the thickness of the aluminum have thinness, so it make coil leak
2.If leak, do not maintenance which must be change new aluminum coil (Some people concern)
Mitsubishi announced “Use high-quality aluminum, coil have thickness, strong and longer lifetime”