Electrical Wiring - Haier MVAB009MV2AA Service Manual

9.6 Electrical Wiring

• Follow local codes when selecting wire gauge and connecting to house power.
• Use the cable strain relief clips and locking conduit clamps to prevent wires from being pulled off terminal posts.
• Unit must be properly grounded. Do not use water or gas piping, phone ground or lightning rod.
• Only copper wire can be used. A properly sized breaker should be provided, or electric shock may occur.
• Unit requires 208/230VAC - 2 voltage wires and a ground. No neutral.
• All indoor units should be wired to the same breaker to prevent some of the units from being powered off while
others are energized.
• Controller wiring and refrigerant tubing can be arranged and ran together.
• Disconnect power from both outdoor and indoor units prior to servicing any component in the system.
Supply Wiring Drawing
outdoor
L1(L) L2(N)
power source: 208/230V~, 60Hz
Indoor 1
L1(L) L2(N)
power source: 208/230V~, 60Hz
• Indoor units and outdoor units should be connected to separate power breakers
• Indoor units must share one single electrical breaker. Circuit breaker specifications should be calculated. It is
recommended to have both indoor & outdoor units connected to GFCI and surge devices.
WARNING
Attention
Indoor 2
L1(L) L2(N)
23
......
Indoor 9
L1(L) L2(N)