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NRFC422MF111
2-pipe ON/OFF 3 speed fan
(parameter 03 set to 00)
5AT
L
100-240 V~
N
2-pipe ON/OFF 3 wires valve
(parameter 03 set to 02)
5AT
L
100-240 V~
N
ON OFF
2-pipe ON/OFF with floor heating
(parameter 03 set to 04)
5AT
L
100-240 V~
N
FLOOR
P100019338 A
Terminal block
Function
designation
VAL1
Valve / compressor
VAL2
Valve / electrostatic filter
L
Live wire
HI
Fan speed high
MED
Fan speed medium
LOW
Fan speed low
N
Neutral conductor
II
III
I
II
III
I
II
III
I
Terminal block
designation
GND
NTC
OCC
COM
B
A
5AT
L
100-240 V~
N
RS485
B
A
5AT
L
100-240 V~
N
RS485
B
A
5AT
L
100-240 V~
N
RS485
B
A
Function
Signal ground
NTC Type II sensor
Occupancy contact
COM
D+
D-
4-pipe ON/OFF 3 speed fan
(parameter 03 set to 01)
II
III
I
2-pipe ON/OFF with TiO2/ESP
(parameter 03 set to 03)
II
III
I
TiO2
ESP
Water source heat pump
(parameter 03 set to 05)
II
III
I
CMP
RS485
B
A
RS485
B
A
RS485
B
A
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