CE1N3573E
17.08.2001
Siemens Building Technologies
HVAC Products
3
573
ACR12.320/ALG
ACR12.321/ALG
ACR12.340/ALG
ACR12.341/ALG
Fan coil controller
for wall mounting
ACR12.3x0
ACR12.3x1
Pulse width modulated (PWM) valve outputs for thermic actuators, AC 230 V
P or PI control behaviour selectable
3-speed fan control, automatic and manual
Manual switching between heating and cooling operation, or automatic with
changeover (C/O) sensor QAH11
Potential-free input for window contact or occupancy detector
Inbuilt room temperature sensor
Three operating modes: Comfort / Economy / Standby
The status of the operating mode switch
(
è
è
è
è
) and changeover switch
( /
)
are
memorised on power failure.
Use
For controlling the room temperature in individual rooms and zones which are heated
and cooled by fan coils. The controllers are suitable for 2- or 4-pipe applications with
manual and automatic fan control.
For control of
•
a 3-speed fan
•
two valve actuator with ACR12.34x/ALG for 4-pipe applications
•
a valve with an electric heater up to 2850 VA with ACR12.32x/ALG
for 2-pipe applications
