Technibel PMHRV 2044 - Electrical Connection Details; General Electrical Requirements; Generator Power Supply Connection; Auxiliary Heating Power Supply

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4.2 - ELECTRICAL CONNECTION
4.2.1 - GENERALITIES
• In all cases, refer to the wiring diagrams supplied with the unit or supplied upon request.
• The acceptable voltage variation is: ±10% during operation.
• The electrical connection conduits must be fixed.
• Short circuit current: 10 kA as per IEC 947-2.
• Class 1 unit.
• Use the holes fitted with grommets for passing cables into the unit.
• The electrical installation must comply with the standards and regulations applicable where the unit is being installed (in
particular NFC 15-100
CEI 364).
• The machine is intented for connection to the mains according to existing regulations.
4.2.2 - GENERATOR POWER SUPPLY
• The power supply must be three-phase 400V/50 Hz, in the electrical box, on the power terminal strip (see electrical diagrams).
CAUTION:
Before starting the unit, ensure that the phase rotation order is correct. The phase-sequence controller restricts the
unit from operating if the 3 supply phases are not in order or if a phase is absent.
• The power supply must come from an isolation and electric protection device (not supplied) in accordance with existing
regulations.
• The sizing of the power supply cables is to be ensured by the installer in accordance with the installation conditions and as
per current standards.
Cable sizes, indicated below, are given for information purposes.
They are calculated in accordance with NFC 15-100 (
CEI 364) with the following hypotheses:
- Maximum current, see table below.
- Multi-pole copper cable with PR insulation.
- Installation in non-ventilated cable duct (installation method No. 41). No other power cable.
- Ambient temperature 40°C.
• The lengths indicated below correspond to a voltage drop less than 5% in the cable.
2044
165
39.6
16
100
2050
170
45.8
16
100
2064
185
61.2
16
100
2072
225
70.6
25
150
PMHRV
Starting current A
Max. total current A
Power supply cable section mm
2
Max. connection length m
• The complete electrical specifications are given in the table of the technical documentation.
• Note: The power supply of the anti-gel resistance option (or the auxilliary heating option) is to be separately at the time of
installation.
4.2.3 - AUXILLIARY HEATING POWER SUPPLY (optional)
• The power supply (three-phase 400V) is separate from the generator and is connected directly on the power switch
of the heating control unit.
• The power supply must come from an isolation and electric protection device (not supplied) in accordance with existing
regulations.
• The sizing of the power supply cables is to be ensured by
the installer in accordance with the installation conditions
and as per current standards.
Cable sizes, indicated below, are given for information
purposes.
They are calculated in accordance with NFC 15-100 (
CEI 364) with the following hypotheses:
- Maximum current, see table below.
- Multi-pole copper cable with PR insulation.
- Installation in non-ventilated cable duct (installation
method No. 41). No other power cable.
- Ambient temperature 40°C.
Heating power kW
Max. current A
Power supply cable mm
2
Max. connection length m
PMHRV 2044 to 2072
48
70
25
150
• The lengths indicated below correspond to a voltage drop less than 5% in the cable.
PMHRV
2044 to 2072
Heating
control
box