Nibe F1145 Series Installation Manual page 29

Caution
In systems with both underfloor heating and
radiators, NIBE ECS 40/41 should be used
for optimum operation.
• 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.
"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 4.1.5 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).
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
savings 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 set-
table in menu 4.1.5).
(A = SG Ready A and B = SG Ready B )
External blocking of functions
An external switch function can be connected to F1145
for blocking various functions. The switch must be po-
tential-free and a closed switch results in blocking.
NOTE
Blocking entails a risk of freezing.
Functions that can be blocked:
• heating (blocking of heating demand)
NIBE F1145
• hot water (hot water production). Any hot water circu-
lation (HWC) remains in operation.
• compressor
• internally controlled additional heat
• tariff blocking (additional heat, compressor, heating,
cooling and hot water are disconnected)
POSSIBLE SELECTION FOR AUX OUTPUT
(POTENTIAL FREE VARIABLE RELAY)
It is possible to have an external connection through the
relay function via a potential free variable relay (max 2
A) on the input circuit board (AA3), terminal block X7.
Optional functions for external connection:
• Indication of buzzer alarm.
• Controlling ground water pump.
• Cooling mode indication (only applies if cooling ac-
cessories are available).
• Control of circulation pump for hot water circulation.
• External circulation pump (for heating medium).
• External, reversing valve for hot water.
• Holiday indication.
If any of the above is installed to terminal block X7 it
must be selected in menu 5.4, see
The common alarm is preselected at the factory.
NOTE
An accessory card is required if several func-
tions are connected to terminal block X7 at the
same time that the buzzer alarm is activated
(see page 68).
AA3-X7
The picture shows the relay in the alarm position.
When switch (SF1) is in the " " or " " position the relay
is in the alarm position.
Chapter 5 | Electrical connections
page 56.
1 2 3
C NO NC
AA3-X7
29