York JVOHQ Series Installation & Maintenance Manual page 47

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Note:
(1) Ensure that field wiring is as per provisions of local laws and regulations, and that a qualified or certified personnel performs
all the wiring operations is must.
(2) Refer power cable dimensions specified in the above table must be according to relevant standards.
(3) If power wire is connected using a distribution box, sum up the current value and select the wires as per the below table
specifications.
(4) Power wire specification should not be less than GB5013.1 requirements for #57 gauge neoprene sheathed wire. Also, the
power wire must use copper wire.
(5) The wiring specification of weak electricity communication circuit is not lower than RVV (S) P shielded wire or equivalent, the
shield layer need to be grounded.
(6) The switch, that ensure all poles can disconnect, should be installed between the power supply and the air conditioner, the
switch contact spacing should be not less than 3 mm.
(7) If the power wire is damaged, must contact the professional of dealer or the designated service for repairing and exchanging.
(8) When installing the power wire, the ground wire should be longer than the current-carrying wire.
To install multi-stage master switch between each phase, its phase distance is 3.5mm or more.
Note:
(1) When the power supply wire is too longer, select the minimum wiring size whose voltage drop is within 2%.
(2) The supply voltage must meet the following conditions:
Power supply voltage
Starting voltage
Operating voltage
Inter-phase imbalance rate
(3) Do not connect the ground wire to the gas pipe, water pipes and lightning rods.
Gas pipe: happens when a gas leak explosion and fire.
Water pipe: when you use hard vinyl tubes ground is not valid.
Lightning rod: When the lightning rod is used, the earth potential increases abnormally.
Table 7.2 Power Wire Selection Principle
Current
Wire size
(A)
(mm²)
i≤6
2.5
6<i≤10
2.5
10<i≤16
2.5
16<i≤25
25<i≤32
32<i≤40
10
40<i≤63
16
CAUTION
!
Voltage fluctuations within ±10%
Voltage fluctuations within -15%
Voltage fluctuations within ±10%
Less than 3%
43
4
6

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