Daikin EWYT021CZI-A1, Руководство по установке и обслуживанию

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D-EIMHP01505-22_00EN 30/59
In any case, the equipotential protection conductor (earth conductor) must have a cross section of at least 10 mm
2
, in
accordance with point 8.2.8 of the same standard.
Section of the copper phase conductors feeding the
equipment
S [mm
2
]
Minimum cross section of the external copper
protection conductor
S p [mm
2
]
S
≤ 16
16 < S
≤ 35
S > 35
S
16
S /2
Table 14
– Table 1 of EN602041 Point 5.2
5.3.1. Maximum cable dimension
Maximum cable dimension that can be physically connected to the main switch of the unit.
Model Max cable size [mm^2] Model [A]
EWYT021CZO-A1 16 63
EWYT032CZO-A1 16 63
EWYT040CZO-A1 16 63
EWYT064CZO-A2 50 100
Model Max cable size [mm^2] Model [A]
EWYT021CZI-A1 6 (rigid) / 4 (flexible) 12
EWYT032CZI-A1 6 (rigid) / 4 (flexible) 12
EWYT040CZI-A1 6 (rigid) / 4 (flexible) 12
EWYT064CZI-A2 6 (rigid) / 4 (flexible) 12
5.3.2. Safety device requirements
The power supply must be protected with a Residual current device, as indicated in the table below.
Main switch and Fuses can be added in accordance with the applicable legislation.
Selection and sizing of the wiring should be done in accordance with the applicable legislation based on the maximum unit
current.
Indoor Unit Customer Protection - Mandatory
Fuses - Not
Mandatory
EWYT021CZI-A1
RESIDUAL CURRENT
DEVICE
TYPE A
13A 12A
EWYT032CZI-A1 13A 12A
EWYT040CZI-A1 13A 12A
EWYT064CZI-A2 13A 12A
Outdoor Unit Customer Protection - Mandatory
Fuses - Not
Mandatory
EWYT021CZO-A1
RESIDUAL CURRENT
DEVICE
TYPE A
32A 40A
EWYT032CZO-A1 63A 63A
EWYT040CZO-A1 63A 63A
EWYT064CZO-A2 100A 100A
When using residual current operated circuit brakers, be sure to use a high-speed type 300 mA rated
residual operating current.
5.4. Phase unbalance
In a three-phase system, the excessive unbalance between the phases is the cause of engine overheating. The
maximum permitted voltage unbalance is 3%, calculated as follows:
𝑈𝑛𝑏𝑎𝑙𝑎𝑛𝑐𝑒 % =
(𝑉𝑥 − 𝑉𝑚) ∗ 100
𝑉𝑚