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Photovoltaic Multi VRF
4.9 External Electrical Wiring Diagram
(1)
Every unit should be equipped with a circuit breaker for short-circuit and overload protection. In general,
circuit breaker is at OFF status.
(2)
During operation, all indoor units and outdoor units belonging to the same system must be kept
energized status. Otherwise, the unit can't operate normally.
NOTICE! Maximum number of IDU is based upon ODU capacity. For details, please refer
to the introduction of units' combination.
4.10 PV system installation
4.10.1 Installation notice
Improper operation or operate the device not according to safety instruction requirement
might lead to danger to the user and serious hardware damage, even property loss and
personal injury. Please read the manual carefully before operation and strictly observe all the
following safety instructions.
Before operation, please disconnect the: (1) connection between AC and power grid; (2)
connection between AC and PV system; don't touch the terminal or conductor that connect
power grid and PV input circuit, any contiguous contacts among internal AC, power grid and PV
system might result in burning or fatal electrical shock.
Electrostatic discharge of internal component might result in unrecoverable damage of AC.
Fig.4.9.1
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