Nibe F1255 Installation Manual page 49

MENU 5.1.12 - INTERNAL ELECTRICAL
ADDITION
fuse size
Setting range: 1 - 400 A
Default values: 25 A
transformation ratio
Setting range: 300 - 3000
Factory setting: 300
Here you set the max. electrical output of the internal
electrical addition in F1255 and the fuse size for the in-
stallation.
MENU 5.1.14 - FLOW SET. CLIMATE SYSTEM
presettings
Setting range: radiator, floor heat., rad. + floor heat.,
DOT °C
Default value: radiator
Setting range DOT: -40.0 – 20.0 °C
Factory setting DOT: -18.0 °C
own setting
Setting range dT at DOT: 0.0 – 25.0
Factory setting dT at DOT: 10.0
Setting range DOT: -40.0 – 20.0 °C
Factory setting DOT: -18.0 °C
The type of heating distribution system the heating
medium pump (GP1) works towards is set here.
dT at DOT is the difference in degrees between flow
and return temperatures at dimensioned outdoor tem-
perature.
MENU 5.1.22 - HEAT PUMP TESTING
NOTE
This menu is intended for testing F1255 accord-
ing to different standards.
Use of this menu for other reasons may result
in your installation not functioning as intended.
This menu contains several sub-menus, one for each
standard.
NIBE F1255
MENU 5.1.24 - BLOCKFREQ
blockFreq 1
Selectable setting range in the display:
start: 17 – 115 Hz
stop: 22 – 120 Hz
Maximum setting range: 50 Hz.
blockFreq 2
Selectable setting range in the display:
start: 17 – 115 Hz
stop: 22 – 120 Hz
Maximum setting range: 50 Hz.
Here you can set a frequency range where the com-
pressor is blocked. The parameters for the setting range
differ depending on which product is controlled by the
setting.
NOTE
A large blocked frequency range can cause the
compressor to run jerkily.
MENU 5.2 - SYSTEM SETTINGS
Make different system settings for the heat pump here,
e.g. which accessories are installed.
There are two ways of activating connected accessories.
You can either highlight the alternative in the list or use
the automatic function "search installed acc.".
search installed acc.
Mark "search installed acc." and press the OK button to
automatically find connected accessories for F1255.
Caution
Certain accessories are not found automatically
but must be ticked off by hand, see menu 5.4.
NOTE
Only mark the option for ground water pump
if the accessory AXC 40 is to be used to control
the circulation pump.
Make different system settings for the heat pump here,
e.g. master/slave settings, docking settings and which
accessories are installed.
MENU 5.2.1 - MASTER/SLAVE MODE
Setting range: master, slave 1-8
Default value: master
Set the heat pump as master- or slave unit. In systems
with one heat pump it must be "master".
Chapter 8 | Control - Menus 49