GB
3.5
Electrical connection
3.5.1
Multi-Controller (MC) electrical circuit diagram
DANGER
Life-threatening danger due to electric shock
Live units and exposed connection cables can generate an electric shock and cause severe accidents.
Work on electrical connections must be carried out exclusively by trained, qualified electricians.
Ensure that the unit is voltage-free before routing all electrical connections.
Power cable
2x400V-460V 50 Hz
2x400V-460V 60 Hz
Item
Designation
C1
Starting capacitor
LP1
Controller
M2
Condenser fan
MM2
Multimaster/ output
S1.2
Door close
T1
Transformer
X28
Service interface (TTL)
Multimaster terminal
X51
contact
Operating Manual DTS and DTI 6201C / 6301C Multi-Controller (MC) 086100014c © Pfannenberg GmbH
S1.1
S1.2
Fault
Item
Designation
F1
High-pressure pressostat
LP2
Display control unit (MC)
(external)
M3
Evaporator
S1
Door contact
SK
Fault signal contact (1,2)
Temperature
TS1
(internal)
X40
Ground terminal contact
Door contact+ terminal
X54
contact +Fault indication
2
Max.2,5mm
AWG 14
Item
F4-F5
M1
fan (internal)
MM1
S1.1
TK
sensor
TS2
X50
08500048511189-866
Designation
Fuse
Compressor
Multimaster/ input
Door open
Door
contact/ signal (4,5)
Temperature
sensor
(external)
Mains terminal contact
Optional
Page 21 / 43