Data Sheet for Product

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Siemens Building Technologies Heat-pump controller for wall mounting ACR12.481 CE1N3577en
HVAC Products 27.05.2004
Circuit with normally closed contacts.
(Parameter P03 = 1)
Circuit with normally open contacts.
(Parameter P03 = 0)
Parameters
15 parameters (P01...P15) define the behaviour of the controller. These parameters
can be changed in the parameter mode.
Entering the parameter mode and changing the parameters is achieved in the following
way:
C/O
Fan
Plus
Minus
•
Press simultaneously the keys <C/O><FAN><MINUS> until the display is dark
(about 2 seconds).
•
Press <MINUS> 2 times at an interval of about 0.5 seconds.
•
Press <C/O> until P01 appears in the LCD display.
•
With the <PLUS> or <MINUS> key, select the parameter you want to see or to
modify.
•
Press the <C/O> key to see the actual value of the parameter.
•
Change the value by using the <PLUS> or <MINUS> keys.
•
Press the <C/O> key to accept a modification or the <FAN> key to cancel the
modification.
•
Incrementing the parameter numbers or the values is accelerated when the +
or – key is being kept depressed for more than 2 seconds.
•
To return to normal operation, press the <FAN> key.
Wiring diagrams
GND DU1
ACR12.481
Nbr. 1
Window
Contact
Nbr. 1
GND DU1
ACR12.481
Nbr. 2
Window
Contact
Nbr. 2
GND DU1
ACR12.481
Nbr. 3
Window
Contact
Nbr. 3
GND DU1
ACR12.481
Nbr. 1
Window
Contact
Nbr. 1
GND DU1
ACR12.481
Nbr. 2
Window
Contact
Nbr. 2
GND DU1
ACR12.481
Nbr. 3
Window
Contact
Nbr. 3