Selectable in/outputs
On the joint card (AA100), SMO S40 has software-con-
trolled AUX inputs and outputs for connecting the extern-
al switch function (contact has to be potential free) or
sensor.
Go into menu 7.4 "Selectable in/outputs" on the display
to select to which AUX connection each function con-
nects.
Selectable inputs for these functions are AA100-X10:7-
12. Each function connects to any input and GND
(AA100-X11).
AA100-X10AA100-X11
GND
10
11
12
9
8
7
AUX4
AUX5
AUX6
AUX3
AUX2
AUX1
The example above uses the inputs AUX1 (AA100-X10:7) and AUX2
(AA100-X10:8).
Selectable outputs AA100-X6 and -X7.
For certain functions, accessories may be required.
TIP
Some of the following functions can also be
activated and scheduled via menu settings.
POSSIBLE SELECTION FOR AUX INPUTS
Temperature sensor
Temperature sensor can be connected to SMO S40.
Available options are:
• Boiler (BT52) (only shown if shunt-controlled additional
heat is selected in menu 7.1.5)
• supply temperature sensor for cooling (BT64) (used
when “active cooling in 4-pipe system” has been ac-
tivated in the output AUX 10 (AA100-X6) or AUX 11
(AA100-X7))
• cooling/heating (BT74), determines when it is time to
switch between cooling and heating mode (can be
selected when the cooling function is activated in
menu 7.2.1).
• additional heat (BT63), is used when docking "step-
controlled additional heat before reversing valve for
hot water" in order to measure the temperature after
the additional heat.
• it is possible to connect two own sensors.
Monitor
Available options are:
• alarm from external units. The alarm is connected to
the control, which means that the malfunction is
presented as an information message in the display.
Potential-free signal of type NO or NC.
• stove monitor. (A thermostat that is connected to the
chimney. When the negative pressure is too low and
the thermostat is connected, the fans in ERS (NC) are
switched off.
External activation of functions
An external switch function can be connected to
SMO S40 to activate various functions. The function is
activated during the time the switch is closed.
Possible functions that can be activated:
• hot water demand mode "more hot water"
• hot water demand mode "small"
• "External adjustment"
When the switch is closed, the temperature is
changed in °C (if a room sensor is connected and ac-
tivated). If a room sensor is not connected or not ac-
tivated, the desired change of "Temperature" (heating
curve offset) is set with the number of steps selected.
The value is adjustable between -10 and +10. External
adjustment of climate systems 2 to 8 requires ac-
cessories.
– climate system 1 to 8
The value for the change is set in menu 1.30.3,
"External adjustment".
• activation of one of four fan speeds.
(Can be selected if ventilation accessory is activated.)
The following five options are available:
– 1-4 is normally open (NO)
– 1 is normally closed (NC)
The fan speed is activated during the time the switch
is closed. Normal speed is resumed when the switch
is opened again.
• SG ready
Caution
This function can only be used in mains net-
works that support the "SG Ready" standard.
"SG Ready" requires two AUX inputs.
If this function is wanted, it must be connected to
terminal block X10 on the joint card (AA100).
"SG Ready" is a smart form of tariff control, through
which your electricity supplier can affect the indoor,
hot water and/or pool temperatures (if applicable) or
simply block the additional heat and/or compressor in
the heat pump at certain times of the day (can be se-
lected in menu 4.2.3 after the function is activated).
27Chapter 5 | Electrical connectionsNIBE SMO S40
To Next Page
Loading...
