Temperature sensor, hot water top
A temperature sensor for hot water top (BT7) can be
connected to F1145 via soft inputs for showing the water
temperature at the top of the tank.
See page 22 for connecting the sensor.
Temperature sensor, external flow line
If temperature sensor, external flow line (BT25) needs to
be used, connect it to terminal block X6:5 and X6:6 on
the input card (AA3). Use a 2 core cable of at least 0.5
mm² cable area.
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Room sensor
F1145 is delivered with a room sensor supplied (BT50).
The room temperature sensor has up to three functions:
1.
Show current room temperature in the heat pump's
display.
2.
Option of changing the room temperature in °C.
3.
Makes it possible to change/stabilise the room tem-
perature.
Install the sensor in a neutral position where the set
temperature is required. A suitable location is on a free
inner wall in a hall approx. 1.5 m above the floor. It is
important that the sensor is not obstructed from measur-
ing the correct room temperature by being located, for
example, in a recess, between shelves, behind a curtain,
above or close to a heat source, in a draft from an extern-
al door or in direct sunlight. Closed radiator thermostats
can also cause problems.
The heat pump operates without the sensor, but if one
wishes to read off the accommodation's indoor temper-
ature in F1145’s display the sensor must be installed.
Connect the room sensor to X6:3 and X6:4 on the input
circuit board (AA3).
If the sensor is to be used to change the room temperat-
ure in °C and/or to change/stabilise the room temperat-
ure, the sensor must be activated in menu 1.9.4.
If the room sensor is used in a room with under floor
heating it should only have an indicatory function, not
control of the room temperature.
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Caution
Changes of temperature in accommodation take
time. For example, short time periods in combin-
ation with underfloor heating will not give a
noticeable difference in room temperature.
NIBE™ F1145Chapter 5 | Electrical connections20
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