Installation manual
1
V1.1 02.2011 Subject to modification.
1. open the left clip
with screw driver
3. Open the front cover
4. Mounting the
housing
LCD Electronic Thermostat CFU-D series
Mounting Method
Wiring Diagram
2. open the right clip
with screw driver
5. Wiring
6. Close the front cover
1
2
2-wire
3-wire
CFU-D422
CFU-D221 / D222
CFU-D221-SS
L
VO VC
N
I
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
L
VO VC
N
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
Lo Mid Hi
II
I
III
L
2
1
VO VC
N
S1 S2 S3
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
Lo Mid Hi
II
I
III
L
L
2
1
VO VC
N
I
N
S1 S2 S3
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
L
2
1
N
S1 S2 S3
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator for
cooling
FAN
Lo Mid Hi
II
I
III
L
CO
N
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator for
cooling
FAN
Lo Mid Hi
II
I
III
2
1
Actuator for
heating
2 3
1
Actuator for
heating
CC
HO HC
CO CC
HO HC
2-wire actuator connection
CFU-D422
CFU-D221 / D222
CFU-D221-SS
L
VO VC
N
I
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
L
VO VC
N
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator
FAN
Lo Mid Hi
II
I
III
L
CO
N
S1 S2 S3
2 3
1
L
N
Occupancy
contact
Ext.
Sensor
6A fuse
Actuator for
cooling
FAN
Lo Mid Hi
II
I
III
2 3
1
Actuator for
heating
CC
HO HC
3-wire actuator connection
