Caution
Underfloor heating systems are normally max
flow line temperature set between 35 and 45
°C.
Check the max floor temperature with your floor
supplier.
Menu 5.1.3 - max diff flow line temp.
max diff compressor
Setting range: 1 – 25 °C
Default value: 10 °C
max diff addition
Setting range: 1 – 24 °C
Default value: 7 °C
Here you set the maximum permitted difference between
the calculated and actual supply temperature during
compressor respectively add. heat mode.
max diff compressor
When the current supply temperature deviates from the
set value compared to that calculated, the heat pump is
forced to stop irrespective of the degree-minute value.
If the calculated flow temperature exceeds the calculated
flow with set value, the degree minute value is set to 0.
The compressor stops when there is only a heating re-
quirement.
max diff addition
If "addition” is selected and activated in menu 4.2 and
the present supply temp exceeds the calculated with set
value, the additional heat is forced to stop.
Menu 5.1.4 - alarm actions
Select how you want the heat pump to alert you that
there is an alarm in the display here.
The different alternatives are that the heat pump stops
producing hot water (default setting) and/or reduces the
room temperature.
Caution
If no alarm action is selected, it can result in
higher energy consumption in the event of an
alarm.
Menu 5.1.5 - fan sp. exhaust air (accessory is
required)
normal and speed 1-4
Setting range: 0 – 100 %
Set the speed for the five different selectable speeds for
the fan here.
Caution
Too low a value can damage the house in the
long term.
Menu 5.1.7 - br pmp al set.
min. brine out
Setting range: -12 – 15 °C
Default value: -8 °C
max brine in
Setting range: 10 – 40 °C
Default value: 30 °C
min. brine out
Set the temperature at which the heat pump is to activate
the alarm for low temperature in outgoing brine.
If "automatic reset" is selected, the alarm resets when
the temperature has increased by 1 °C below the set
value.
max brine in
Set the temperature at which the heat pump is to activate
the alarm for high temperature in incoming brine.
Select “alarm activated" to activate the alarm.
Menu 5.1.8 - operating mode brine pump
op. mode
Setting range: intermittent, continuous, 10 days con-
tinuous
Default value: intermittent
Set the operating mode of the brine pump here.
intermittent: The brine pump starts 20 seconds before
and stops at the same time as the compressor.
continuous: Continuous operation.
10 days continuous: Continuous operation for 10 days.
Then the pump shifts to intermittent operation.
NIBE™ F1245Chapter 8 | Control - Menus62
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