Electrical Wiring - Carrier XCT 7 40VD072H-7S-QEE Installation And Owner's Manual

Electrical Wiring

• Electrical construction should be made with specific mains circuit by the qualified personnel according to the
installation instructions. Electric shock and fire may be result if power supply is inadequate.
• While laying the wiring, specified cables should be used for the mains line, which meets the local regulations.
Connecting and fastening should be performed reliably to avoid external pull on cables from being transmitted to the
terminals. Improper connection or fastening may lead to fire accidents.
• Grounding should be as specified. Unreliable grounding may result in electrical shocks. Do not connect the
grounding line to gas pipe, water pipes, lightening rods and telephone lines.
• Only copper wire can be used. Breaker for electric leakage should be provided, or electric shock may occur.
• The wiring of the mains line is of Y type. The power plug L should be connected to the live wire and plug N connected to
null wire while should be connected to the ground wire. For the type with auxiliary electrically heating function, the
live wire and the null wire should not be misconnected, or the surface of electrical heating body will be electrified. If the
power line is damaged, replace it by the professional personnel of the manufacturer or service center.
• The power line of indoor units should be arranged according to the installation instruction of indoor units.
• The electrical wiring should not touch high-temperature sections of tubing to avoid the insulating layer of cables from
melting, which may lead to accidents.
• After connecting to the terminal tier, the tubing should be bent into a U-type elbow and fastened with the pressing
clip.
• Controller wiring and refrigerant tubing can be arranged and fixed together.
• The machine should not be powered on before electrical operations are complete. Maintenance should be done while
the power is shut down.
• Seal the thread hole with heat insulating materials to avoid condensation.
• The power cord should be H05VV-F, 3G 1.0-1.5mm
• The communication interconnection cord between indoor unit and outdoor unit should be at least H05RN-F, 2×0.75mm
• 5 butt lines (1.5mm) are equipped in the machine before delivery, which are used to connect the valve box and the
electrical system of the machine. The detailed connection is displayed in the circuit diagram.
• If the fuse on the indoor PC board is broken please change it with the type of T 5A /250VAC.
Supply Wiring Drawing
• Indoor units and outdoor units should be connected to the power source separately. Indoor units must share one single
electrical source, but its capacity and specifications should be calculated prior to installation. Indoor & outdoor units should be
equipped with the power leakage breaker and the overflow breaker.
WARNING
Attention
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