Connection As Twin Combination; Connecting External Accessories; On-Site Configuration; Dip Switch Setting - Bosch Climate 5000 L Installation Instructions Manual

On-site configuration

3.7.6

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. 30 and 31:
IDU-M Master unit (indoor unit 1)
IDU-S Slave unit (indoor unit 2)
▶ Connect master unit as described in chapter 3.7.2.
▶ 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.
3.7.7

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 9
To connect a gateway, observe the technical documentation of the
gateway and the connection accessories.
1) L=1(L) and N=2(N).
60
4 On-site configuration
4.1

DIP switch setting

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
1)
.
power supply (fuse/circuit breaker) and lock the isolator switch to
prevent unintentional reconnection.
All DIP switches have been configured before delivery. The default
setting is highlighted bold.
▶ Only professional maintenance personnel should change these
settings.
▶ Improper DIP switch settings may cause condensation, noise, or
unexpected system malfunction.
Definition of DIP switch 0/1:
Table 10 Switch positions
ENC1 Code
0
1
2
4
5
7
8
9
A
B
1) Default depending on the model
Table 11 Set the output
Climate 5000 L • Climate 5000i U/L – 6721841493 (2022/05)
Definition 0
Definition 1
Capacity setting
20
26
32 - 35
36 - 53
54 - 71
72 - 90
91 - 105
109 - 140
141 - 160
161 - 200
1)