Nibe F1145-5 Installer Manual page 27

Possible selection for AUX inputs
Temperature sensor, hot water top
A temperature sensor for hot water top can be connec-
ted to F1145 for showing the water temperature at the
top of the tank.
The temperature sensor, hot water top (BT7) is connected
to the selected input (menu 5.4, see page 54) on terminal
block X6 on the input card (AA3) which is located behind
the front cover and in a submerged tube on the water
heater.
Use a 2 core cable of at least 0.5 mm² cable area.
Temperature sensor, cooling/heating
An extra temperature sensor (BT74) can be connected
to F1145 in order to determine when it is time to switch
between heating and cooling operation.
The temperature sensor is connected to the selected in-
put (menu 5.4, the alternative is only displayed if cooling
accessory is installed, se page 54) on terminal block X6
on the input card (AA3) which is located behind the front
cover and is positioned in a suitable place in the climate
system.
Use a 2 core cable of at least 0.5 mm² cable area.
Switch for external blocking of addition and/or
compressor
Blocking for addition heat and compressor is connected
on two different AUX inputs.
If external blocking of additional heat and/or compressor
is wanted, this can be connected to terminal block X6
on the input board (AA3), which is positioned behind
the front cover.
The additional heat and/or the compressor are discon-
nected by connecting a potential-free switch function
to the input selected in menu 5.4, see page 54.
External blocking of addition and compressor can be
combined.
A closed contact results in the electrical output being
disconnected.
Contact for external tariff blocking
In those cases where external tariff blocking is used, it
can be connected to terminal block X6 on the input
board (AA3), which is positioned behind the front cover.
Tariff blocking means that the additional heat, the
compressor, the heating and hot water are blocked by
connecting a potential-free switch function to the input
selected in menu 5.4, see page 54.
Closed switch means that tariff blocking is activated.
NOTE
When tariff blocking is activated, the min. supply
line does not apply.
NIBE F1145
Switch for "SG ready"
NOTE
This function can only be used in mains net-
works that support the "SG Ready"-standard .
"SG Ready" requires two AUX inputs.
In cases where this function is required, it must be con-
nected to terminal block X6 on the input card (AA3).
"SG Ready" is a smart form of tariff control where 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 selected in menu 4.1.5
after the function is activated). Activate the function by
connecting potential-free switch functions to two inputs
selected in menu 5.4 (SG Ready A and SG Ready B), see
page 54.
Closed or open switch means one of the following:
■
Blocking (A: Closed, B: Open)
"SG Ready" is active. The compressor in the heat pump
and additional heat is blocked like the day's tariff
blocking.
■
Normal mode (A: Open, B: Open)
"SG Ready" is not active. No effect on the system.
■
Low price mode (A: Open, B: Closed)
"SG Ready" is active. The system focuses on costs sav-
ings and can for example exploit a low tariff from the
electricity supplier or over-capacity from any own
power source (effect on the system can be adjusted
in the menu 4.1.5).
■
Overcapacity mode (A: Closed, B: Closed)
"SG Ready" is active. The system is permitted to run at
full capacity at over capacity (very low price) with the
electricity supplier (effect on the system is settable in
menu 4.1.5).
(A = SG Ready A and B = SG Ready B )
Switch for +Adjust
Using +Adjust, the installation communicates with the
underfloor heating's control centre* and adjusts the heat
curve and calculated supply temperature according to
the underfloor heating system's reconnection.
Activate the climate system you want +Adjust to affect
by highlighting the function and pressing the OK button.
*Support for +Adjust required
NOTE
+Adjust must first be selected in menu 5.4 "soft
inputs/outputs".
Chapter 5 | Electrical connections 27