Nibe F1155 Installer Manual page 29

Switch for external blocking of heating
In those cases where external blocking of heat is used,
it can be connected to terminal block X6 on the input
board (AA3), which is positioned behind the front
cover.
Heating operation is disconnected by connecting a
potential-free switch function to the input selected in
menu 5.4, see page 50.
A closed switch results in blocked heating operation.
NOTE
When heat blocking is activated, the min.
supply line does not apply.
Switch for external forced control of brine pump
In those cases external forced control of brine pump is
used, this can be connected to terminal block X6 on
the input board (AA3), which is positioned behind the
front cover.
The brine pump can be force controlled by connecting
a potential free switch function to the input selected
in menu 5.4, see page 50.
A closed switch means that the brine pump is active.
Contact for activation of "temporary lux"
An external switch function can be connected to F1155
for activation of the hot water function "temporary
lux". The switch must be potential-free and connected
to the selected input (menu 5.4, see page 50) on ter-
minal block X6 on the input board (AA3).
"temporary lux" is activated for the time that the con-
tact is connected.
Contact for activation of "external adjustment"
An external contact function can be connected to
F1155 to change the supply temperature and the room
temperature.
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 activated, the desired
change of "temperature" (heating curve offset) with
the number of steps selected is set. The value is ad-
justable between -10 and +10.
climate system 1
■
The switch must be potential-free and connected to
the selected input (menu 5.4, see page 50) on termin-
al block X6 on the input board (AA3).
The value for the change is set in menu 1.9.2, "extern-
al adjustment".
climate system 2 to 8
■
External adjustment for climate systems 2 to 8 re-
quires accessories ((ECS 40 or ECS 41).
See the accessory's installer handbook for installation
instructions.
NIBE™ F1155
Contact for activation of fan speed
Caution
The external contact function functions only
if the accessory FLM is installed and activated.
An external contact function can be connected to
F1155 for activation of one of the four fan speeds. The
switch must be potential free and connected to the
selected input (menu 5.4, see page 50) on terminal
block X6 on the input circuit board (AA3). When the
switch closes, the selected fan speed is activated. Nor-
mal speed is resumed when the contact is opened
again.
NV 10, pressure/level/flow monitor brine
If the level sensor (accessory NV10) is desired for the
brine installation it can be connected on the selected
input (menu 5.4, see page 50) on terminal block X6 on
the input circuit board (AA3).
Pressure and flow sensors can also be connected to the
input.
The input must be closed during normal operation.
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.
■
If any of the above is installed to terminal block X7 it
must be selected in menu 5.4, see page 50.
The common alarm is preselected at the factory.
NOTE
An accessory board is required if several func-
tions are connected to terminal block X7 at
the same time the common alarm is activated).
AA3-X7
The picture shows the relay in the alarm position.
Chapter 5 |
1 2 3
C NO NC
AA3-X7
Electrical connections 29