Daikin EWAT016CZN-A1, Installation, Maintenance And Operation Manual

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EWYT~CZ / EWAT~CZ DEIMHP0140521_00EN
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Do not apply torque, tension or weight to the main switch
terminals. Power line cables must be supported by
appropriate systems.
To avoid interference, all control wires must be connected separately
from the power cables. To do this, use several electrical passage
ducts.
The protections for the power supply system must be designed
according to the values mentioned above. A fuse must be present on
each phase and, where provided for by the national laws of the
country of installation, a leak detector to earth.
This equipment complies with:
■
EN/IEC 61000-3-11 provided that the system impedance Zsys is
less than or equal to Zmax at the interface point between the
user’s supply and the public system.
■
EN/IEC 61000-3-11
= European/International Technical Stan-
dard setting the limits for voltage changes, voltage fluctuations
and flicker in public low voltage supply systems for equipment
with rated current ≤75 A.
It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with a
system impedance Zsys less than or equal to Zmax.
■
EN/IEC 61000-3-12
provided that the shortcircuit power Ssc is
greater than or equal to the minimum Ssc value at the interface
point between the user’s supply and the public system.
■
EN/IEC 61000-3-12 = European/International Technical Stan-
dard setting the limits for harmonic currents produced by equip-
ment connected to public low voltage systems with input current
>16 A and ≤75 A per phase.
It is the responsibility of the installer or user of the equipment to
ensure, by consultation with the distribution network operator if
necessary, that the equipment is connected only to a supply with a
shortcircuit power Ssc greater than or equal to the minimum Ssc
value.
Model Z
max
(Ω)
Minimum S
ac
value
(kVA)
EWAQ/EWYQ016 – 1016
EWAQ/EWYQ021 0.27 820
EWAQ/EWYQ025 0.27 821
EWAQ/EWYQ032 0.24 874
EWAQ/EWYQ040 0.25 1639
EWAQ/EWYQ050 0.25 1630
EWAQ/EWYQ064 0.22 1747
Before any electrical connection work to the compressor
motor and / or the fans, make sure that the system is
switched off and the main switch of the unit is open. Failure
to observe this rule could result in serious personal injury.
5.2.1. Cable requirements
The cables connected to the circuit breaker must respect the
insulation distance in the air and the surface isolation distance
between the active conductors and the earth, according to
IEC 614391 table 1 and 2, and to the local national laws.
The cables connected to the main switch must be tightened using a
pair of keys and respecting the unified clamping values, relative to the
quality of the screws of the washers and nuts used.
Connect the earth conductor (yellow / green) to the PE ground
terminal.
The equipotential protection conductor (earth conductor) must have a
section according to table 1 of EN 602041 Point 5.2, shown below.
In any case, the equipotential protection conductor (earth conductor)
must have a cross section of at least 10 mm², in accordance with
point 8.2.8 of the same standard.
Section of the copper phase conductors
feeding the equipment
S [mm²]
Minimum crosssection of the external
copper protection conductor
S p [mm²]
S ≤ 16
16 < S ≤ 35
S > 35
S
16
S /2
Table 8 – Table 1 of EN602041 Point 5.2
Maximum cable dimension
Maximum cable dimension that can be physically connected to
mainswitch of the unit.
Model
Max cable
size [mm^2]
Model [A]
Max cable
size [mm^2]
Model [A]
STD Configuration
High Ambient Temperature
Kit OP.192
EWAT/EWYT016CZ(N/P/H)-A1 16 63 16 63
EWAT/EWYT021CZ(N/P/H)-A1 16 63 16 63
EWAT/EWYT025CZ(N/P/H)-A1 16 63 16 63
EWAT/EWYT032CZ(N/P/H)-A1
16 63 50 100
EWAT/EWYT040CZ(N/P/H)-A1 16 63 50 100
EWAT/EWYT040CZ(N/P/H)-A2 50 80 50 80
EWAT/EWYT050CZ(N/P/H)-A2 50 80 50 80
EWAT/EWYT064CZ(N/P/H)-A2
50 100 70 125
EWAT/EWYT090CZ(N/P/H)-A2 70 125 70 125
5.2.2. Interconnection cables
The unit cannot operate without the flow of water, thanks to the
intervention of the flow switch. If the unit is operated without the flow
of water, it will cause serious damage (freezing of the BPHE).
• Clean contacts: the controller has some clean signal con-
tacts. These contacts can be wired as indicated in the wiring
diagram. The maximum permissible current is 2A.
• Remote inputs: in addition to the clean contacts, it is also
possible to install remote inputs. For installation, refer to the
wiring diagram.
5.2.3. 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 and the maximum unit current.
Model Customer Protection
Fuses - Not
Mandatory
EWAT/EWYT016CZ(N/P/H)-A1
Residual Current
device Type A -
Protection
Mandatory
32A 40A
EWAT/EWYT021CZ(N/P/H)-A1 40A 40A
EWAT/EWYT025CZ(N/P/H)-A1 40A 50A
EWAT/EWYT032CZ(N/P/H)-A1 63A 63A
EWAT/EWYT040CZ(N/P/H)-A1 63A 80A
EWAT/EWYT040CZ(N/P/H)-A2 80A 80A
EWAT/EWYT050CZ(N/P/H)-A2 80A 80A
EWAT/EWYT064CZN(N/P/H)-A2 100A 100A
EWAT/EWYT090CZ(N/P/H)-A2 125A 160A