Immergas AUDAX TOP, Инструкция и рекомендации

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MINIMUM AND MAXIMUM SECTION OF CONNECTION CABLES (FOR EACH PHASE) TO THE AUDAX TOP 18-21 ERP UNITS
Max.
connectable
section*
Calculation of favourable case: Calculation of unfavourable case:
- Suspended overhead lines (standardised routing
No.17)
- XLPE insulated cable
- Conductor cables in ducts or multi-conductors in
closed ducts (standardised routing No.41)
- PVC insulated cable, if possible
Audax Top
18-21 ErP
Section Section** Maximum
length for
voltage drop
<5%
Type of cable Section** Maximum
length for
voltage drop
<5%
Cable mode**
mm² (per
phase)
mm² (per
phase)
m - mm² (per
phase)
m -
18 5G6² 5G4² 100 H07RNF 5G4² 80 H07RNF
21 5G6² 5G4² 100 H07RNF 5G4² 80 H07RNF
PLEASE NOTE:
* Connection capacities actually available for each machine, defined in compliance with the connection terminal size, size of access to the control
panel and space available inside the control panel.
** Result of the selection simulated considering the indicated hypothesis.
*** If the maximum section calculated is for XLPE cable mode, this means that a basic selection on a PVC mode cable can exceed the actually available
connection capacity. Pay special attention to the selection.
2.4 ELECTRICAL CONNECTIONS.
Refer to the wiring diagrams inside this manual.
2.4.1 Power supply.
The power supply must comply with the heat
pump plate specifications. The power supply
voltage must be within the range specified in
the electrical features table. For the connections,
refer to the wiring diagrams and dimensional
drawings.
Attention: After commissioning the unit, the
power supply can only be deactivated for quick
maintenance interventions (maximum one
day). For longer maintenance interventions or
when the unit is decommissioned and placed
in storage (e.g. during the winter season or in
case the unit must not generate cooling), the
power supply must not be deactivated so as to
ensure the supply of energy necessary to the
electric heaters (heater of compressor air coils,
anti-freeze protection unit).
Connection to standard power supply
E P E P N N 3 L 3 L 1 L 1 L 2 L 2 L
TB
X1
PE
Field supplied
2-9
2.4.2 Recommended cable sections.
The installer is responsible for sizing the cables
according to the features and regulations ap-
plicable to each installation site. The following
is merely indicative and does not make the
Manufacturer liable in any way. Once the cables
are sized, the installer, using the dimensional
drawings, must be sure to have identified a simple
connection mode and defined any change that
might be necessary on-site.
The terminal board for power supply cables has
been designed for the number and type of cables
listed in the following table.
The calculations are based on the maximum
machine current (see plate and electrical data ta-
bles) and on the standard methods of installation
applied in accordance with IEC 60364, table 52C:
• No. 17: suspended overhead lines,
• No. 61: buried duct with derating coefficient 20.
The calculation is based on PVC or XLPE in-
sulated cables with copper core. A maximum
ambient temperature of 46°C was considered.
The indicated length of cables limits the voltage
drop to < 5% (length L expressed in metres - see
table below).
Important: before connecting the main power
supply cables (L1 - L2 - L3 – N - PE) on the
terminal board, it is mandatory to check the
exact order of the 3 phases. Then connect these
cables and the neutral filter, making sure to
place it properly (an incorrect connection of
the neutral conductor cable may irreversibly
damage the unit).
Customised power
supply