Bosch Climate CL5000L 53 E Installationsanleitung Für Die Fachkraft Seite 53

▶ Remove the vacuum pump, pressure gauge and Schrader opener.
▶ Reattach the valve caps.
3.6 Electrical connection
3.6.1 General notes
WARNING
Risk to life from electric shock!
Touching live electrical parts can cause an electric shock.
▶ Before working on electrical parts, disconnect all phases of the
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
▶ Work on the electrical system must only be carried out by an
authorised electrician.
▶ An authorised electrician must determine the correct conductor
cross-section and circuit breaker. The maximum current
consumption of the technical data ( see chapter 9, page 58) is
decisive for this purpose.
▶ Observe safety measures according to national and international
regulations.
▶ If you identify a safety risk in the mains voltage, or if a short circuit
occurs during installation, inform the operator in writing and do not
install the appliances , until the problem has been resolved.
▶ All electrical connections must be made in accordance with the
electrical connection diagram.
▶ Only use a special tool to cut cable insulation.
▶ Connect the cable to the existing mounting clips / cable glands using
suitable cable ties (scope of delivery).
▶ Do not connect any additional consumers to the mains power supply
of the device.
▶ Do not mix up live and PEN conductor. This can lead to malfunctions.
▶ If the mains power supply is fixed, install an overvoltage protector
and isolator which is designed for 1.5 times the maximum power
input of the appliance.
3.6.2 Connecting the indoor unit
The indoor unit is connected via a 4-wire communication cable. Use
cables of the type H07RN-F with sufficient conductor cross-section.
NOTICE
Material damage can be caused by connecting the indoor unit
incorrectly
Voltage is supplied to every indoor unit via the outdoor unit.
▶ Only connect the indoor unit to the outdoor unit.
Connecting the communication cable
▶ Open the clip locks and undo the screws of the top cover.
▶ Fold up the top cover ( Fig. 122).
▶ Undo screws and remove cover of the interface panel [2].
▶ Guide the cable through the cable feed [1] on the rear of the indoor
unit.
▶ Secure cable to the strain relief and connect to the Handling terminals
L, N, S and
▶ Note assignment of wires to the terminals.
▶ Close covers.
▶ Route the cable to the outdoor unit.
3.6.3 Connecting the outdoor unit
A power supply cable (3-wire) and the communication cable of the
indoor unit (4-wire) are connected to the outdoor unit. Use cables of the
type H07RN-F with sufficient conductor cross-section and protect the
mains power supply with a fuse.
Climate 5000 L • Climate 5000iL – 6721841494 (2024/06)
▶ Secure the communication cable to the strain relief and connect to
the terminals 1(L), 2(N), S and
same as indoor unit) ( Fig. 114 und 115).
▶ Attach 1 magnetic ring to the communication cable, as close as
possible to the outdoor unit.
▶ Secure power cable to the strain relief and connect.
– CL5000L ... E: terminals L, N and
– CL5000L ... E-3: terminals L1, L2, L3, N and
▶ Fasten cover for connections.
3.6.4 Connection as twin combination
With the twin combination, two indoor units are connected in series.
With the slave unit, terminal S is omitted. Instead of that, communication
takes place between he indoor units via terminals X, Y and E.
Key to Fig. 124 and 125:
IDU-M Master unit (indoor unit 1)
IDU-S Slave unit (indoor unit 2)
▶ Connect master unit as described in chapter 3.6.2.
▶ Connect save unit to the master unit via terminals L, N and
▶ Connect master unit and slave unit additionally to terminals X, Y and
E via a communication cable. In doing so, earth the shield.
The central controller and twin combination both use the X/Y/E terminal.
For this reason, a decision must be made in advance if a twin
combination or central controller is installed.
3.6.5 Connecting external accessories
External accessories can be connected to the terminals listed below.
Connection Description / special features
CN23 On / Off contact switch
• Volt free terminal
• When using jumper connector, remove J6 next to
the connection.
• Open contact:
– Indoor unit off
– Remote control / room controller inactive (CP
in the display)
• Closed contact:
– Indoor unit on
– Remote control / room controller active
CN33 Alarm signal output
• Volt free terminal
• Connection, maximum 24 V DC, 500 mA
• Open contact: Alarm off
• Closed contact: Alarm on
CN40 Connection for room controller
CN43 External fan for supply of fresh air
• Integrated power supply for maximum 200 W or
1 A (relay recommended).
• External fan switches on / off simultaneously with
the fan of the indoor unit.
• In test mode or manual operation, the external
fan remains off.
Table 64
1) L=1(L) and N=2(N).
Installation
(assignment of wires to terminals
1)
.
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