Data Sheet for Product

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Siemens Building Technologies Fan coil controller for wall mounting ACR12 CE1N3573E
HVAC Products 17.08.2001
Switch designation S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12
Operating mode 1 (Comfort* <-> Standby**)
Operating mode 2 (Comfort* <-> Economy**)
Operating mode 3 (Economy* <-> Standby**)
Operating mode 4 not used
on
on
off
off
on
off
off
on
Direction of operation of input DU1 normally closed
(Change of operating mode) normally open
on
off
Dwell time of the fan speeds: 2 minutes
1 minute
on
off
P-band heating 2 K
P-band heating 4 K
on
off
P-band cooling 2 K
P-band cooling 4 K
on
off
PI algorithm
P algorithm
on
off
Mode 1 Ventilation in the neutral zone OFF
Mode 2 Ventilation in the neutral zone ON
on
off
2-pipe application
4-pipe application
on
off
2-pipe application cooling / Valve + electric heater
2-pipe application cooling /Valve
on
off
Factory setting c/o hysteresis 17 °C – 27 °C
Fan "Off“ at c/o < 35 °C, c/o–hysteresis 17 °C – 39 °C
on
off
Indication °C
Indication °F
on
off
The factory settings are underlined and in bold print in the above table (on)
* Change of the operating mode can be made with the button on the controller,
by means of a window contact, occupancy detector or otherwise (terminals
DU1-GND). Input DU1-GND has a higher priority than the
button.
** In case the controller is in operating mode marked **, the setpoint shift of ± 6 K is
not active. If any operation is carried out on the front of the controller, the mode
changes to * and the setpoint shift of ± 6 K is active again.
GND
B2
DU1
M
Y1
Y10
Q14*
N
N
N
L
PE
Q1
Q3
Q2
3574A09
3574A10
ACR12.340/ALG and ACR12.341/ALG // *ACR12.320/ALG and *ACR12.321/ALG
DU1 Operation mode control input (DIL: S1&S2), max. AC 25 V
GND
Measuring neutral for control input
L, N Operating voltage AC 230 V
PE Earthing
Q14 Control output for electric heater
Y10 4-pipe application / control output for valve (cooling) / AC 230 V
M
Measuring neutral for sensor
B2 Changeover- or return air sensor QAH11
Y1 4-pipe application / control output for valve (heating) / AC 230 V
2-pipe application / control output for valve (heating or cooling) / AC 230 V
Q1 Control output for fan speed 1 / AC 230 V
Q2 Control output for fan speed 2 / AC 230 V
Q3 Control output for fan speed 3 / AC 230 V
Terminal assignment