Here, you can also check which current sensor is installed
on which incoming phase to the property (this requires the
current sensors to be installed). Perform the check by select-
ing "Detect phase sequence".
TIP
Search again if the phase detection fails. The de-
tection process is very sensitive and is easily af-
fected by other appliances in the accommodation.
MENU 7.1.10 - SYSTEM SETTINGS
You make your various system settings for your installation
here.
MENU 7.1.10.1 - OPERATING PRIORITISATION
Auto mode
Alternative: on/off
Min
Setting range: 0 – 180 minutes
Here, you select how long the installation will work with each
demand, if there are several simultaneous demands.
"Operating prioritisation" is normally set in "Auto", but it is
also possible to set prioritisation manually.
Auto: In auto mode, S1256 optimises operating times
between different requirements.
Manual: You select how long the installation will work with
each demand, if there are several demands at the same time.
If there is only one demand, the installation works with that
demand.
If 0 minutes are selected, this means that the demand is not
prioritised, but will instead only be activated when there is
no other demand.
Operating
prioritisation
Hot water
Heating
Pool 1
Cooling
Pool 1
Min
Auto mode
Auto mode
MENU 7.1.10.2 - AUTO MODE SETTING
Stop heating
Setting range: -20 – 40 °C
Stop additional heat
Setting range: -25 – 40 °C
Filtering time heating
Setting range: 0 – 48 h
Stop heating, Stop additional heat: In this menu, you set the
temperatures that the system will use for control in auto
mode.
Caution
It cannot be set "Stop additional heat" higher than
"Stop heating".
Filtering time: You can set the time over which the average
outdoor temperature is calculated. If you select 0, the cur-
rent outdoor temperature is used.
MENU 7.1.10.3 - DEGREE MINUTE SETTINGS
Current value
Setting range: -3,000 – 100 DM
Heating, auto
Alternative: on/off
Start compressor
Setting range: -1,000 – (-30) DM
Relative DM start additional heat
Setting range: 100 – 2,000 DM
Diff. between add heat steps
Setting range: 10 – 1,000 DM
Degree minutes cooling
Alternatives: -3,000 – 3,000 DM
Stepping diff compressors
Setting range: 10 – 2,000 DM
DM = degree minutes
Degree Minutes (DM) are a measurement of the current
heating/cooling demand in the house and determine when
the compressor or additional heat will start/stop.
Caution
Higher value on "Start compressor" gives more
compressor starts, which increase wear on the
compressor. Too low value can give uneven indoor
temperatures.
MENU 7.2 - ACCESSORY SETTINGS
The operating settings for accessories that are installed and
activated are made in the sub-menus for this.
MENU 7.2.1 - ADD/REMOVE ACCESSORIES
Here, you tell S1256 which accessories are installed.
To identify connected accessories automatically, select
"Search for accessories". It is also possible to select accessor-
ies manually from the list.
57Chapter 9 | Control - MenusNIBE S1256
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