Data Sheet for Product

11/16
Building Technologies Fan coil controller for wall mounting ACR12 CE1N3578en
HVAC Products 03.10.2005
3.5 VA max.
L
N
Q1 Q2 Q3 N Y1
3.5 VA max.
N Y10
760 VA max.
3576D01
B2 M
T
B2
L
M1
3
Y1 Y10
N
S1
AC 230 V / 50/60 Hz
DU1 GND
SELV
With 4-pipe applications (P09 = OFF or 0), a return air sensor QAH11 can be con-
nected to terminals B2-M . In this case, the inbuilt sensor is automatically deactivated.
The c/o or return air sensor input (B2, M) is internally in the controller connected
to the mains supply voltage of AC 230 V. Make sure that the isolation of the
electric wiring is according to the requirements for 230V lines!
+
DU1 GND
3.5 VA max.
L
PE
Q1 Q2 Q3 N Y1
2000 VA max.
N Q14
760 VA max.
3573D09
B2 M
T
B2
L
M1
3
Y1 E1
N
S1
AC 230 V / 50 Hz
N
SELV
B2 Changeover sensor (REF7090521, REF7090523) or return air sensor
(REF7090520, REF7090522)
S1 Window contact or occupancy detector
E1 Electric heater
Y1 4 pipe applications: heating valve
2 pipe applications: cooling or heating valve (depending on changeover)
M1 3-speed fan
Y10 4 pipe applications: cooling valve
2 pipe applications: control output for external relay for electric heater
Q14 Control output for electric heater
4-pipe fan-coil
Important:
2-pipe fan-coil
REF7090521
REF7090523
REF7090520
REF7090522