Nibe S2125, Installer Manual, Page: 36 / 64

F-SERIES – VVM / SMO
These settings are made on the display on the indoor mod-
ule/control module.
Menu 5.11.1.1 - heat pump
Here, you make specific settings for the installed heat pump.
Silent mode permitted
Setting range: yes / no
Detect compressor phase
Setting range S2125 1 x 230 V: off/on
Current limit
Setting range: 6 – 32 A
Factory setting: 32 A
blockFreq 1
Setting range: yes / no
blockFreq 2
Setting range: yes / no
Defrosting
Start manual defrosting
Setting range: on/off
Start temperature for defrost function
Setting range: -3 – 3 °C
Factory setting: -3 °C
Cut-out value activation passive defrosting
Setting range: 2 – 10 °C
Factory setting: 4 °C
Defrost more often
Setting range: Yes / No
Silent mode permitted: Here, you set whether silent mode
is to be activated for the heat pump. Please note that you
now have the option to schedule when silent mode will be
active.
The function should only be used for limited periods, because
S2125 possibly may not reach its dimensioned output.
Detect compressor phase: This shows in which the phase
the heat pump has detected whether you have S2125
230V~50Hz. Phase detection normally occurs automatically
in connection with start-up of the indoor module/control
module. This setting can be changed manually.
Current limitation: Here, you set whether the current limita-
tion function will be activated for the heat pump, if you have
S2125 230V~50Hz. During active function, you can limit the
value of the maximum current.
BlockFreq 1: Here, you can select a frequency range within
which the heat pump is not permitted to work. This function
can be used if certain compressor speeds cause noise dis-
turbance in the house.
BlockFreq 2: Here, you can select a frequency range within
which the heat pump is not permitted to work.
Defrosting: Here, you can change the settings that affect
the defrost function.
Start manual defrosting: Here, you can manually start an
"active defrosting", if the function needs to be tested for
servicing or if necessary. This can be justified together with
"fan de-icing".
Start temperature for defrost function: Here, you set the
temperature (BT16) at which the defrost function will start.
The value must only be changed in consultation with the
installer.
Cut-out value activation passive defrosting: Here, you set
the temperature (BT28) at which "passive defrosting" will
be activated. During passive defrosting, the ice is melted by
the energy from the ambient air. The fan is active during
passive defrosting. The value must only be changed in
consultation with the installer.
Defrost more often: Here, you activate whether defrosting
will occur more frequently than normal. This selection can
be made if the heat pump receives an alarm due to build-up
of ice during operation caused, for example, by snow.
Menu 4.9.7 - tools
Fan de-icing
Setting range: off/on
Continuous fan de-icing
Setting range: off/on
Fan de-icing: Here, you set whether the "fan de-icing"
function will be activated during the next "active defrosting".
This can be activated if ice/snow sticks to the fan, grille or
fan cone, which may be noticed due to abnormal fan noise
from S2125.
"Fan de-icing" means that the fan, grille and fan cone are
heated using hot air from the evaporator (EP1).
Continuous fan de-icing: There is the option to set recurring
de-icing. In this case, every tenth defrosting will be "Fan
de-icing". (This can increase annual energy consumption.)
NIBE S2125 Chapter 7 | Control 36