Connecting The Air/Water Heat Exchanger Electrically - Pfannenberg PWT 6402 Instrucciones De Servicio

GB
Ensure that the following general requirements are met for safe and reliable operation of the air/water heat
exchangers:
• Ensure that all connections are made in accordance with the specifications, see circuit diagram
connection and figure (5)
• It is prohibited to connect an upstream temperature control on the supply side.
• Connect the fuse specified on the type plate as line protection, see
• Ensure that the data on the type plate for nominal values corresponds to the existing values for mains voltage
and mains frequency, see
• Always connect the air/water heat exchanger to the mains via a disconnecting device (switch/contactor).
 The disconnecting device must have a contact opening of 3 mm. The disconnecting device is installed by the
customer.
3.5.4

Connecting the air/water heat exchanger electrically

DANGER
Danger of fatal injury due to electric shock
Unconnected or incorrectly installed protective conductor systems can generate hazardous voltages and
cause electrical shocks resulting in serious accidents.
 Only trained electricians may work on electrical connections.
 Implement protective conductor systems in accordance with DIN EN 60204-1, Section 8.2.
 Every single part of the electrical equipment must be connected to the protective conductor
system.
 Never interrupt the protective conductor system if electrical equipment is attached to covers,
doors or covering plates.
 If parts are removed, e.g. during maintenance work, make sure that the protective conductor
system is not interrupted for the remaining parts.
Item Designation
1 Pin header plug connection
3 Protective equipotential-bonding
 Protective conductors in the mains connection cable are not regarded as potential equalization conductors.
Requirements

All general requirements for safe and reliable operation are ensured, see

Air/water heat exchanger is without voltage.
Procedure
 Connect the cable (4) to the female multipoint plug connection / cage clamp terminal (2B/A) / (accessory kit) in
accordance with the electrical circuit diagram, see
Operating Manual PWT 6402 230V / 400V 086100107 © Pfannenberg GmbH
Electrical connection
type plate.
Figure 14 - Air/water heat exchanger plug connection
type plate
Item Designation
Female multipoint plug connection (A)
2
Cage clamp terminal - max 3.5 x 3.0 mm (B)
Cable - Ø 0.5 – 2.5mm²
4
Electrical connection.
Electrical
and technical data.
supply connection mains
Page 21 / 30