time betw. switch heat/cool
Setting range: 0 – 48 h
Factory setting: 2
mixing valve amplifier
Setting range: 0.1 –10.0
Default value: 1.0
mixing valve step delay
Setting range: 10 – 300 s
Setting range: 10 – 500 s
Default values: 30 s
You can use F1355 to cool the house during hot periods
of the year.
Caution
Certain setting options only appear if their
function is installed and activated in F1355.
cool/heat sensor
An extra temperature sensor can be connected to F1355
in order to determine when it is time to switch between
heating and cooling operation.
When several heating/cooling sensors are installed, you
can select which one of them should be in control.
Caution
When the heating/cooling sensors BT74 have
been connected and activated in menu 5.4, no
other sensor can be selected in menu 1.9.5.
set pt value cool/heat sensor
Here you can set at which indoor temperature F1355 is
to shift between heating respectively cooling operation.
heat at room under temp.
Here you can set how far the room temperature can
drop below the desired temperature before F1355
switches to heating operation.
cool at room over temp.
Here you can set how high the room temperature can
increase above the desired temperature before F1355
switches to cooling operation.
larm rumsgivare kyla
This is where you set whether F1355 is to initiate an
alarm if the room sensor is disconnected or breaks dur-
ing cooling operation.
start passive cooling
Here you can set when passive cooling is to start.
Degree minutes are a measurement of the current
heating demand in the house and determine when the
compressor, cooling operation respectively additional
heat will start/stop.
start active cooling
Here you can set when active cooling is to start.
Degree minutes are a measurement of the current
heating demand in the house and determine when the
compressor, cooling operation respectively additional
heat will start/stop.
compressor speed
Here you can set at what speed the compressor is to
operate at during active cooling. Set value corresponds
to part of the available output.
degree minutes cooling
This selection is only available when the connected ac-
cessory itself counts cooling degree minutes.
After a min or max value has been set, the system will
automatically set the real value in relation to the number
of compressors that are running cooling.
time betw. switch heat/cool
This selection is only available when cooling in 2-pipe
systems.
Here you can set how long F1355 is to wait before it
returns to heating mode when the cooling demand has
ceased or vice versa.
MENU 1.9.6 - FAN RETURN TIME (ACCESS-
ORY REQUIRED)
Here you select the return time for temporary speed
change (speed 1-4) on the ventilation in menu 1.2.
Return time is the time it takes before ventilation speed
returns to normal.
MENU 1.9.7 - OWN CURVE
supply temperature
heating
Setting range: 5 – 80 °C
cooling (accessory required)
Depending on which accessory is used the setting
range can vary.
Setting range: 5 – 40 °C
When required, create your own heating or cooling curve
here, by setting the desired supply temperatures for
different outdoor temperatures.
17Chapter 3 | Control - MenusNIBE F1355
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