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CAUTION
During installation, the earth wire shall be
longer than the current carrying conductor to
ensure that when the fixing device is loose,
the earth wire is still not stressed and can be
reliably earthed.
When inserting the strong-current cables and
communication wiring into the wiring holes,
they must be equipped with wiring across
rings. Otherwise, they may be worn out by
the sheet mental and cause electric leakage
or short circuit.
Outdoor unit wiring diagram
Circuit
Circuit
breaker1
breaker2
Outdoor unit1
Outdoor unit2
WARNING
Do not connect the earth wire of the lightning
rod to the unit shell. The earth wires of the
lightning rod and the power cable must be
configured separately.
Each unit shall be equipped with a circuit
breaker for short circuits and abnormal
overload protection. In addition, the indoor
and ODUs shall be equipped with a main
circuit breaker respectively to connect or
disconnect the main power supply of the
indoor and ODUs.
Circuit
breaker0
Circuit
breaker3
Outdoor unit3
Fig 5.41
31
5.10.5 ELECTRICAL WIRING
WARNING
Do not connect the communication wiring
when the power is on.
Connect the shielding nets at both ends of
the shielded wire to the sheet metal "
the electronic control box.
Do not connect the power cable to the
terminal of communication wiring, otherwise,
the motherboard will be damaged.
CAUTION
Design a dedicated power supply for the
indoor unit and outdoor unit.
If the power supply uses a branch loop, install
an electricity leakage protector and a manual
switch.
The
power
supply,
protectors, and manual switches of the
indoor units that connect to the same
outdoor unit must be universal. Use the same
loop for the indoor unit power connect to the
same outdoor unit must be universal. Use the
same loop for the indoor unit power supplies
in the same system. Power on/off at the
same time.
Incorporate the outdoor unit and indoor unit
connection wiring system and refrigerant
pipe system for the same system.
To reduce interference, use a three-core
shielded twisted pair as the outdoor unit
signal cable. Do not use a multi-core cable.
Complete
wiring
according
electrical standards.
Employ an electrical engineer for wiring.
" of
electric
leakage
to
national
V.1
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