Nibe F1255 Installer Manual page 49

Clean the exhaust air module's air filter regularly, how
often depends on the amount of dust in the ventilation
air.
activate cooling: Activate cooling via the exhaust air
module here. When the function has been activated, the
cooling settings are displayed in the menu system.
See the accessory installation instructions for function
description.
Menu 5.3.2 - shunt controlled add. heat
prioritised additional heat
Setting range: on/off
Factory setting: off
start diff additional heat
Setting range: 0 – 2000 GM
Default values: 400 GM
minimum running time
Setting range: 0 – 48 h
Default value: 12 h
min temp.
Setting range: 5 – 90 °C
Default value: 55 °C
mixing valve amplifier
Setting range: 0.1 –10.0
Default value: 1.0
mixing valve step delay
Setting range: 10 – 300 s
Default values: 30 s
Set when the addition is to start, the minimum run time
and the minimum temperature for external addition
with shunt here. External addition with shunt is for ex-
ample a wood/oil/gas/pellet boiler.
You can set shunt valve amplification and shunt valve
waiting time.
Selecting "prioritised additional heat" uses the heat from
the external additional heat instead of the heat pump.
The shunt valve is regulated as long as heat is available,
otherwise the shunt valve is closed.
See the accessory installation instructions for function
description.
NIBE™ F1255
Menu 5.3.3 - extra climate system
use in heating mode
Setting range: on/off
Factory setting: on
use in cooling mode
Setting range: on/off
Factory setting: off
mixing valve amplifier
Setting range: 0.1 – 10.0
Default value: 1.0
mixing valve step delay
Setting range: 10 – 300 s
Default values: 30 s
In menu 5.3.3, you choose the climate system (2 - 8) you
wish to set. In the next menu you can make settings for
the climate system that you have selected.
If the heat pump is connected to more than one climate
system, condensation may occur in these, if they are not
intended for cooling.
To prevent condensation, check that "use in heating
mode" is checked for the climate systems that are not
intended for cooling. This means that the sub-shunts to
the extra climate systems close, when cooling operation
is activated.
Caution
This setting option only appears if "passive/act-
ive cooling 2-pipe" or "passive cooling 2-pipe"
is activated in menu 5.2.
The shunt amplification and shunt waiting time for the
different extra climate systems that are installed are also
set here.
See the accessory installation instructions for function
description.
Chapter 8 | Control - Menus 49