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N
L1
6. Wiring Diagrams
Example diagrams
6
Example diagrams
6.1 Diagram 1 - SD-EC without internal connections on
Diagram 1 WCU-EC without internal connections on the motor (WCU 40).
the motor (model SD-EC 3)
3
EC Motor
EC Motor
2
Thermostat
Diagram 2 WCU-EC with internal connections on the motor (WCU60, 80 and 100).
N
N
L1
EC Motor
N
3
1
2
T
Thermostat
3
Diagram 2 WCU-EC with internal connections on the motor (WCU60, 80 and 100).
2
Thermostat
EC Motor
6.3 Diagram 3 - SD-EC Connection with fixed maximum speed
EC Motor
Diagram 3 Connection with fixed maximum speed:
Wire the 230V supply into the 6-pole connector, Connect a wire link between terminal T2 & S3 as shown below
L1
N
Connect the 230V supply in the 6-pole connector.
Connect a wire between terminals T2 enS3, see diagram below.
Diagram 4 Connection with variable speed
L1
Control setting via speed regulator GA3955:
Connect the 230V supply in the 6-pole connector.
N
Connect the speed regulator as stated in the diagram below:
3
1
T1
2
T
L1
Thermostat
T2
Diagram 3 Connection with fixed maximum speed:
S3
Connect the 230V supply in the 6-pole connector.
N
Connect a wire between terminals T2 enS3, see diagram below.
Connector
T1
L1
L1
T2
6.4 Diagram 4 - SD-EC Connection with fixed variable speed
WCU
S3
230V AC
Control setting via speed regulator GA3955, connect the 230V supply in the 6-pole connector. Connect the speed
N
N
regulator as shown in the diagram below:
Connector
T1
T1
GND (0V)
SD-EC
WCU
T2
T2
10V (OUT)
S3
S3
0-10V ( IN )
M1
M1
Connector
Connector
WCU
Mount wire between 10V and IN in the 6-pole connector.
Diagram 4 Connection with variable speed
Fitted thermostat
Control setting via speed regulator GA3955:
Connect the 230V supply in the 6-pole connector.
BI_WCU_EN_05
Connect the speed regulator as stated in the diagram below:
M1
M1
L1
Diagram 5 Connection with variable speed via external power source
N
L1
T1
Mount wire between 10V and IN in the 6-pole connector.
T2
N
S3
T1
BI_WCU_EN_05
Connector
T2
S3
6
WCU
Connect or
Diagram 2 WCU-EC with internal connections on the motor (WCU60, 80 and 100).
Diagram 2 WCU-EC with internal connections on the motor (WCU60, 80 and 100).
EC Motor
N
1
T
L1
Diagram 3 Connection with fixed maximum speed:
Diagram 3 Connection with fixed maximum speed:
Connect the 230V supply in the 6-pole connector.
Connect the 230V supply in the 6-pole connector.
L1
L1
Connect a wire between terminals T2 enS3, see diagram below.
Connect a wire between terminals T2 enS3, see diagram below.
N
L1
T1
T2
S3
3
1
N
Connector
2
T
Thermostat
T1
1
T2
T
S3
L1
N
Connector
Connector
SD-EC
WCU
WCU
L1
Fitted thermostat
N
230V AC
T1
T2
S3
3
1
Connector
2
GND (0V)
T
Thermostat
M1
M1
10V (OUT)
230V AC
0-10V ( IN )
GND (0V)
Mount wire between 10V and IN in the 6-pole connector.
Mount wire between 10V and IN in the 6-pole connector.
10V (OUT)
0-10V ( IN )
230V AC
BI_WCU_EN_05
BI_WCU_EN_05
Speed regulator 10kΩ
GND (0V)
10V (OUT)
0-10V ( IN )
230V AC
GND (0V)
23 0V A C
10V (OUT)
0-10V ( IN )
GND (0V)
Speed regulator 10kΩ
1 0V (OUT)
0-1 0V ( IN )
External source 0-10V d.c.
EC Motor
L1
L1
L1
N
230V AC
6.2 Diagram 2 - SD-EC with internal connections on the
N
motor (models SD-EC 5, 7 & 10)
T1
GND (0V)
T2
10V (OUT)
S3
0-10V ( IN )
Diagram 2 WCU-EC with internal connections on the motor (WCU
Diagram 2 WCU-EC with internal connections on the m
Connector
EC Motor
3
3
1
1
2
2
T
T
Thermostat
Thermostat
L1
230V AC
230V AC
N
L1
T1
GND (0V)
GND (0V)
L1
T2
10V (OUT)
10V (OUT)
230V AC
230V AC
230V AC
N
S3
0-10V ( IN )
0-10V ( IN )
N
T1
GND (0V)
Connector
T2
10V (OUT)
Diagram 3 Connection with fixed maximum speed:
Diagram 3 Connection with fixed maximum speed:
T1
GND (0V)
S3
GND (0V)
0-10V ( IN )
Connect the 230V supply in the 6-pole connector.
Connect the 230V supply in the 6-pole connector.
T2
Connector
10V (OUT)
10V (OUT)
Connect a wire between terminals T2 enS3, see diagram below.
Connect a wire between terminals T2 enS3, see diagram b
S3
0-10V ( IN )
0-10V ( IN )
L1
L1
N
230V AC
230V AC
N
T1
T1
GND (0V)
GND (0V)
T2
T2
10V (OUT)
10V (OUT)
S3
0-10V ( IN )
0-10V ( IN )
S3
Connector
Connector
WCU
WCU
M1
M1
Mount wire between 10V and IN in the 6-pole connector.
Mount wire between 10V and IN in the 6-pole connector.
BI_WCU_EN_05
BI_WCU_EN_05
6-Pole connector
Page 6/8
3
3
1
1
2
2
T
T
Thermostat
Thermostat
L1
L1
230V AC
230V AC
N
N
T1
T1
GND (0V)
GND (0V)
T2
T2
EC Motor
10V (OUT)
10V (OUT)
S3
S3
0-10V ( IN )
0-10V ( IN )
L1
L1
N
N
Connector
Connector
3
3
1
1
2
2
T
T
Thermostat
Thermostat
L1
230V AC
230V AC
N
T1
GND (0V)
GND (0V)
T2
10V (OUT)
10V (OUT)
S3
0-10V ( IN )
0-10V ( IN )
Connector
6-Pole connector
Installation
Installation
Installation
Installation
Page 6/8
Page 6/8
230V AC
N
N
T1
T1
GND (0V)
T2
T2
10V (OUT)
S3
S3
0-10V ( IN )
Connector
Connector
L1
L1
230V AC
N
N
T1
T1
GND (0V)
T2
T2
10V (OUT)
S3
S3
0-10V ( IN )
Connector
Connector
Installation
Installation
Installation
Page 6/8
Page 6/8
230V A
GND (0V
10V (OUT
0-10V ( IN
230V AC
GND (0V)
10V (OUT)
0-10V ( IN )
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