Selectable inputs
Selectable inputs on the input board for these functions
are:
AA3-X6:9-10AUX1
AA3-X6:11-12AUX2
AA3-X6:13-14AUX3
AA3-X6:15-16AUX4
AA3-X6:17-18AUX5
The example above uses the inputs AUX1 (X6:9-10) and AUX2 (X6:11-
12) on the input board (AA3).
Selectable output
A selectable output is AA3-X7.
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 F1145. Use
a 2-core cable of at least 0.5 mm² cable area.
Available options are:
• hot water top (BT7) (shows the water temperature at
the top of the tank. The temperature sensor is placed
in the submerged tube on the water heater.)
• external supply line (BT25) (control of temperature to
the heating system)
• cooling/heating (BT74), determines when it is time to
switch between cooling and heating mode (only
shown if cooling accessory is selected in menu 5.2.4).
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.
• level (accessory NV10)/, pressure/flow monitor for the
brine (NC).
• pressure switch for climate system (NC).
External activation of functions
An external switch function can be connected to F1145
to activate various functions. The function is activated
during the time the switch is closed.
Possible functions that can be activated:
• forced control of brine pump
• hot water comfort mode “temporary lux”
• hot water comfort mode “economy”
• “external adjustment”
When the switch is closed, the temperature changes
in °C (if the room sensor is connected and activated).
If a room sensor is not connected or not activated,
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 1.9.2, "ex-
ternal 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.
• +Adjust
Using +Adjust, the installation communicates with
the underfloor heating’s control centre* and adjusts
the heating curve and calculated supply temperature
according to the underfloor heating system’s recon-
nection.
Activate the climate system you want +Adjust to affect
by highlighting the function and pressing the OK but-
ton.
*Support for +Adjust required
Caution
This accessory may require a software up-
date in your F1145. The version can be
checked in the “Service info” menu 3.1.
Visit nibeuplink.com and click on the “Soft-
ware” tab to download the latest software
to your installation.
NIBE F1145Chapter 5 | Electrical connections28
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