Nibe F1245 Series Installation Manual page 48

Caution
For underfloor heating systems, max flow line
temperature should normally be set to 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
in the event of compressor or additional heat mode re-
spectively. Max diff. additional heat can never exceed
max diff. compressor
max diff compressor
If the current supply temperature exceeds the calculated
supply by set value, the degree minute value is set to
+2. The compressor in the heat pump stops if there is
only a heating demand.
max diff addition
If "addition" is selected and activated in menu 4.2 and
the current supply temperature exceeds the calculated
temperature by the 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.
48 Chapter 8 | Control - Menus
Caution
An incorrectly set ventilation flow can damage
the house and may also increase energy con-
sumption.
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 – 30 °C
Default value: 30 °C
min. brine out
Set the temperature at which the heat pump is to activ-
ate 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 activ-
ate the alarm for high temperature in incoming brine.
MENU 5.1.8 - OPERATING MODE BRINE
PUMP
op. mode
Setting range: intermittent, continuous, 10 days
continuous
Default value: intermittent
Set the operating mode of the brine pump here.
intermittent: The brine pump starts approx. 20 seconds
before and stops approx. 20 seconds after the com-
pressor.
continuous: Continuous operation.
10 days continuous: Continuous operation for 10 days.
The pump then shifts to intermittent operation.
TIP
You can use "10 days continuous" at start-up
to obtain continuous circulation during a start-
up time in order to make it easier to bleed the
system.
NIBE F1245